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1. Vesper J, Graf E, Wille C, Tilgner J, Trippel M, Nikkhah G, Ostertag C: Retrospective analysis of treatment outcome in 315 patients with oligodendroglial brain tumors. BMC Neurol; 2009;9:33
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Retrospective analysis of treatment outcome in 315 patients with oligodendroglial brain tumors.
  • Although chemotherapy with procarbazine, lomustine and vincristine (PCV) is considered to be well tolerated, side effects frequently lead to dose reduction or even discontinuation of treatment of oligodendroglial brain tumors.
  • Based on the updated histology data, patients were included in the study if they had at least one histological diagnosis of an oligodendroglial tumor.
  • Significant advantages in terms of overall survival after first diagnosis of oligodendroglial tumor (OS, n = 315) were found for patients < 50 y (p < 0.001), oligodendrogliomas versus oligoastrocytomas (p = 0.002), and WHO degrees II vs. degrees III (p < 0.001).
  • Younger age, lower tumor grade and histology of an oligodendroglioma were identified to be favorable prognostic factors.
  • [MeSH-major] Antineoplastic Combined Chemotherapy Protocols. Brain Neoplasms / drug therapy. Oligodendroglioma / drug therapy
  • [MeSH-minor] Adolescent. Adult. Aged. Child. Child, Preschool. Disease-Free Survival. Female. Humans. Lomustine / administration & dosage. Lomustine / therapeutic use. Male. Middle Aged. Procarbazine / administration & dosage. Procarbazine / therapeutic use. Prognosis. Retrospective Studies. Treatment Outcome. Vincristine / administration & dosage. Vincristine / therapeutic use

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  • (PMID = 19604414.001).
  • [ISSN] 1471-2377
  • [Journal-full-title] BMC neurology
  • [ISO-abbreviation] BMC Neurol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 35S93Y190K / Procarbazine; 5J49Q6B70F / Vincristine; 7BRF0Z81KG / Lomustine
  • [Other-IDs] NLM/ PMC2719586
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2. Barresi V, Buttarelli FR, Vitarelli EE, Arcella A, Antonelli M, Giangaspero F: Caveolin-1 expression in diffuse gliomas: correlation with the proliferation index, epidermal growth factor receptor, p53, and 1p/19q status. Hum Pathol; 2009 Dec;40(12):1738-46
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  • Caveolin-1 (cav-1) has been proposed as an immunohistochemical marker able to distinguish astroglial from oligodendroglial tumors.
  • [MeSH-major] Brain Neoplasms / diagnosis. Caveolin 1 / biosynthesis. Glioma / diagnosis. Receptor, Epidermal Growth Factor / biosynthesis. Tumor Suppressor Protein p53 / biosynthesis
  • [MeSH-minor] Adult. Aged. Biomarkers, Tumor / analysis. Cell Proliferation. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Diagnosis, Differential. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Ki-67 Antigen / biosynthesis. Middle Aged

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  • (PMID = 19716156.001).
  • [ISSN] 1532-8392
  • [Journal-full-title] Human pathology
  • [ISO-abbreviation] Hum. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Caveolin 1; 0 / Ki-67 Antigen; 0 / Tumor Suppressor Protein p53; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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3. Hirose T, Ishizawa K, Shimada S: Utility of in situ demonstration of 1p loss and p53 overexpression in pathologic diagnosis of oligodendroglial tumors. Neuropathology; 2010 Dec;30(6):586-96
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  • [Title] Utility of in situ demonstration of 1p loss and p53 overexpression in pathologic diagnosis of oligodendroglial tumors.
  • To improve the diagnostic accuracy of oligodendroglial tumors and to find more convenient parameters that could predict the cytogenetic status, oligodendroglial and astrocytic tumors were cytogenetically and immunohistochemically investigated.
  • Materials included 22 oligodendroglial tumors (15 oligodendrogliomas and 7 oligoastrocytomas) and 20 astrocytic tumors.
  • Furthermore, TP53 mutation analyses were carried out on three oligodendroglial tumors showing p53 protein overexpression with a direct sequence analysis.
  • Our FISH studies demonstrated 1p loss in 73% of oligodendroglial tumors (80% oligodendrogliomas and 57% oligoastrocytomas) and in only 10% of astrocytic tumors.
  • There were no clear-cut morphologic differences between 1p-deleted and 1p-intact oligodendroglial tumors.
  • GFAP and Olig2 were expressed in most oligodendroglial and astrocytic tumors, and their cellular localization was almost independent of each other.
  • Overexpression of p53 was observed in five oligodendroglial tumors, all of which were 1p-intact.
  • In comparison, 16 oligodendroglial tumors with 1p deletion showed no overexpression of p53.
  • TP53 missense mutations were detected in three of the p53 overexpressed oligodendroglial tumors studied.
  • Our results suggest that 1p loss is almost specific to oligodendroglial tumors.
  • Although the prediction of 1p status based solely on the morphologic features seems to be difficult, the immunohistochemistry for p53 is a useful tool in that p53 overexpression is closely related to the 1p-intact status in oligodendroglial tumors.
  • [MeSH-major] Astrocytoma / diagnosis. Brain Neoplasms / diagnosis. Chromosomes, Human, Pair 1 / genetics. Oligodendroglioma / diagnosis. Tumor Suppressor Protein p53 / biosynthesis
  • [MeSH-minor] Adult. Aged. Basic Helix-Loop-Helix Transcription Factors / biosynthesis. Female. Gene Deletion. Glial Fibrillary Acidic Protein / biosynthesis. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Male. Middle Aged. Mutation. Nerve Tissue Proteins / biosynthesis

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  • [Copyright] © 2010 Japanese Society of Neuropathology.
  • (PMID = 20408960.001).
  • [ISSN] 1440-1789
  • [Journal-full-title] Neuropathology : official journal of the Japanese Society of Neuropathology
  • [ISO-abbreviation] Neuropathology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Australia
  • [Chemical-registry-number] 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / Glial Fibrillary Acidic Protein; 0 / Nerve Tissue Proteins; 0 / OLIG2 protein, human; 0 / Tumor Suppressor Protein p53
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4. Rodriguez FJ, Mota RA, Scheithauer BW, Giannini C, Blair H, New KC, Wu KJ, Dickson DW, Jenkins RB: Interphase cytogenetics for 1p19q and t(1;19)(q10;p10) may distinguish prognostically relevant subgroups in extraventricular neurocytoma. Brain Pathol; 2009 Oct;19(4):623-9
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  • Co-deletion of chromosome arms 1p and 19q, characteristic of oligodendroglial tumors, was recently found to be mediated by t(1;19)(q10;p10).
  • To evaluate the prevalence of 1p19q co-deletion and t(1;19) in extraventricular neurocytomas (EVN), we studied tumors from 23 patients, including 13 females and 10 males (median age at diagnosis 34 years, range 2-76 years).
  • Three tumors with 1p19q loss and t(1;19) demonstrated atypical histologic features, compared with one (of 17) tumors without 1p19q co-deletion (P = 0.01, Fisher exact test).
  • In addition, tumors with t(1;19) showed increased mitotic activity compared with tumors without t(1;19) (P = 0.045; Wilcoxon rank sum test).
  • The four patients with t(1;19) developed tumor recurrence (n = 3), or expired (n = 2) 3.5 to 5.5 years after first resection.
  • These results suggest that 1p19q loss and t(1;19) occur in a subset of EVN, and may be associated with aggressive histology in these tumors.

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  • (PMID = 18710393.001).
  • [ISSN] 1750-3639
  • [Journal-full-title] Brain pathology (Zurich, Switzerland)
  • [ISO-abbreviation] Brain Pathol.
  • [Language] ENG
  • [Grant] United States / NINDS NIH HHS / NS / NS007494-04; United States / NINDS NIH HHS / NS / T32 NS007494; United States / NINDS NIH HHS / NS / T32 NS007494-04; United States / NINDS NIH HHS / NS / T32 NS07494-04
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] Switzerland
  • [Other-IDs] NLM/ NIHMS69073; NLM/ PMC2742575
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5. Ramirez C, Bowman C, Maurage CA, Dubois F, Blond S, Porchet N, Escande F: Loss of 1p, 19q, and 10q heterozygosity prospectively predicts prognosis of oligodendroglial tumors--towards individualized tumor treatment? Neuro Oncol; 2010 May;12(5):490-9
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  • [Title] Loss of 1p, 19q, and 10q heterozygosity prospectively predicts prognosis of oligodendroglial tumors--towards individualized tumor treatment?
  • The purpose of this study was to determine whether chromosome 10q loss is a predictor of tumor aggressiveness and poor clinical outcome in patients with oligodendroglial tumors alone or together with loss of heterozygosity (LOH) on chromosomes 1p and 19q.
  • A microsatellite analysis was performed on sections from 130 patients with grade II and grade III oligodendroglial tumors to assess the allelic status of chromosomes 1p, 19q, and 10q, plus detailed clinical and radiological information was taken prospectively.
  • There was a significant association between LOH status and the tumors' response to chemotherapy: 92.3% with 1p19q LOH, 83.3% without allelic losses, 50% with 1p19q10q LOH, and 14.5% with 10q LOH.
  • 10q LOH predicted a survival disadvantage in patients with oligodendroglial tumors irrespective of 1p/19q LOH status.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 10 / genetics. Chromosomes, Human, Pair 19 / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Aged. Antineoplastic Agents / therapeutic use. Disease-Free Survival. Drug Resistance, Neoplasm / genetics. Female. Humans. Kaplan-Meier Estimate. Loss of Heterozygosity. Male. Microsatellite Repeats. Middle Aged. Precision Medicine / methods. Prognosis. Young Adult


6. Taillibert S, Chodkiewicz C, Laigle-Donadey F, Napolitano M, Cartalat-Carel S, Sanson M: Gliomatosis cerebri: a review of 296 cases from the ANOCEF database and the literature. J Neurooncol; 2006 Jan;76(2):201-5
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  • Gliomatosis cerebri (GC) is a rare disease, defined as a diffuse neoplastic glial cell infiltration of the brain.
  • It was higher for patients younger than 42 years (17 months vs. 13 months), with performance status>or=80 (27 months vs. 9 months), low grade gliomatosis (grade 2=20 months, grade 3=11.5 months, grade 4=8.5 months), oligodendroglial subtype (36 months compared to 14 months for mixed GC and 11 months for astrocytic GC).
  • Male population was younger (median 39 years vs. 45), had a higher incidence of oligodendroglial GC (22% vs. 13%), which may explain their better prognosis (median survival 17 months vs. 11.5 months) than female population.
  • Despite a high rate of stabilization, the impact on survival of whole brain radiotherapy, which carries the risk of severe toxicity, is still unclear.
  • Up-front chemotherapy benefit to some patients and may be preferred to whole brain radiotherapy.
  • [MeSH-major] Brain Neoplasms / pathology. Neoplasms, Neuroepithelial / pathology
  • [MeSH-minor] Adolescent. Adult. Age Factors. Aged. Aged, 80 and over. Child. Child, Preschool. Combined Modality Therapy. Databases, Factual. Female. France / epidemiology. Humans. Infant. Karnofsky Performance Status. Male. Middle Aged. Prognosis. Registries. Sex Factors. Survival Analysis. Tomography, X-Ray Computed

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  • (PMID = 16200347.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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7. Kuo LT, Kuo KT, Lee MJ, Wei CC, Scaravilli F, Tsai JC, Tseng HM, Kuo MF, Tu YK: Correlation among pathology, genetic and epigenetic profiles, and clinical outcome in oligodendroglial tumors. Int J Cancer; 2009 Jun 15;124(12):2872-9
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  • [Title] Correlation among pathology, genetic and epigenetic profiles, and clinical outcome in oligodendroglial tumors.
  • Recent studies have revealed a correlation between specific genetic changes, such as loss of chromosome 1p and 19q, and sensitivity of oligodendroglial neoplasm to radiotherapy and chemotherapy; epigenetic changes also play an important role in some tumors.
  • In this retrospective study, we analyzed chromosomal alterations in 17 loci and promoter methylation status of 8 tumor-related genes in 49 oligodendroglial tumors (29 WHO grade II and 11 WHO grade III oligodendrogliomas; 7 WHO grade II and 2 WHO grade III oligoastrocytomas) using quantitative microsatellite analysis and methylation-specific polymerase chain reaction and correlated this information with clinical data.
  • Promoter methylation was detected in p14, p15, p16, p53, p73, PTEN, MGMT and RASSF1A genes in 24.5%, 6.1%, 46.9%, 0%, 6.1%, 42.9%, 53.1% and 77.6% of tumors, respectively.
  • Our findings suggest that the frequent deletion and hypermethylation of tumor-related genes may represent a mechanism of tumor development and progression and emphasize the importance of defining new molecular markers for predicting prognosis, tumor recurrence and therapeutic response in cancer management.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosome Aberrations. Chromosomes, Human / genetics. Epigenesis, Genetic. Neoplasm Proteins / genetics. Oligodendroglioma / genetics. Oligodendroglioma / pathology
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Cell Proliferation. Child. Child, Preschool. DNA Methylation. DNA Modification Methylases / genetics. DNA Modification Methylases / metabolism. DNA Repair Enzymes / genetics. DNA Repair Enzymes / metabolism. DNA, Neoplasm / genetics. Female. Humans. Immunoenzyme Techniques. Ki-67 Antigen / metabolism. Male. Microsatellite Repeats. Middle Aged. Neoplasm Staging. Polymerase Chain Reaction. Promoter Regions, Genetic / genetics. Retrospective Studies. Survival Rate. Tumor Suppressor Proteins / genetics. Tumor Suppressor Proteins / metabolism. Ubiquitin-Protein Ligases / genetics. Ubiquitin-Protein Ligases / metabolism. Young Adult

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  • [Copyright] Copyright 2008 UICC.
  • [ErratumIn] Int J Cancer. 2009 Sep 1;125(5):1241
  • (PMID = 19330828.001).
  • [ISSN] 1097-0215
  • [Journal-full-title] International journal of cancer
  • [ISO-abbreviation] Int. J. Cancer
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DNA, Neoplasm; 0 / Ki-67 Antigen; 0 / Neoplasm Proteins; 0 / Tumor Suppressor Proteins; EC 2.1.1.- / DNA Modification Methylases; EC 2.1.1.63 / MGMT protein, human; EC 6.3.2.19 / MIB1 ligase, human; EC 6.3.2.19 / Ubiquitin-Protein Ligases; EC 6.5.1.- / DNA Repair Enzymes
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8. Qu M, Olofsson T, Sigurdardottir S, You C, Kalimo H, Nistér M, Smits A, Ren ZP: Genetically distinct astrocytic and oligodendroglial components in oligoastrocytomas. Acta Neuropathol; 2007 Feb;113(2):129-36
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  • [Title] Genetically distinct astrocytic and oligodendroglial components in oligoastrocytomas.
  • Oligoastrocytomas are glial tumours consisting of a mixture of neoplastic astrocytic and oligodendroglial cells.
  • In the majority of cases (9/11), the oligodendroglial and astrocytic components of an individual oligoastrocytoma displayed the same genotype.
  • In one case, the oligodendroglial part of the tumour showed LOH19q, whereas the astrocytic part showed TP53 mutation (codon 273).
  • In another case, we found LOH 1p/19q in the oligodendroglial component, but two retained areas on chromosome 1p in the astrocytic component of the tumour.
  • The two cases of biphasic oligoastrocytomas in our sample that display a different genotype in the astrocytic and oligodendroglial part of the tumour show that different components of an oligoastrocytoma may be derived from different cell clones during neoplastic transformation.
  • [MeSH-major] Astrocytoma / classification. Astrocytoma / genetics. Brain Neoplasms / classification. Brain Neoplasms / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Aged. Chromosomes, Human, Pair 1 / genetics. Female. Humans. Male. Microsatellite Repeats. Middle Aged. Mutation. Reverse Transcriptase Polymerase Chain Reaction / methods. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 17031656.001).
  • [ISSN] 0001-6322
  • [Journal-full-title] Acta neuropathologica
  • [ISO-abbreviation] Acta Neuropathol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Tumor Suppressor Protein p53
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9. Hiremath GK, Bingaman WE, Prayson RA, Nair D: Oligoastrocytoma presenting with intractable epilepsy. Epileptic Disord; 2007 Sep;9(3):315-22
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  • OBJECTIVE: Oligoastrocytomas (OA) are mixed gliomas with distinct oligodendroglial and astrocytic neoplastic components.
  • Tumors arose from the left side in all patients and from the temporal lobe in five patients.
  • There were no surgical complications, clinical or radiographic tumor recurrence at a mean follow up period of 3.2 years (range 2-8).
  • CONCLUSION: As a result of our small sample size, general conclusions may be imprecise, but this review suggests that OA behave similar to other tumors related to intractable epilepsy: they usually have a preoperative seizure course of many years, an excellent rate of seizure-freedom following surgery, and are in general, low-grade tumors with an indolent course for which serial imaging is sufficient follow-up.
  • [MeSH-major] Astrocytoma / complications. Brain Neoplasms / complications. Epilepsy / drug therapy. Epilepsy / etiology
  • [MeSH-minor] Adolescent. Adult. Anticonvulsants / therapeutic use. Craniotomy. Drug Resistance. Epilepsy, Complex Partial / etiology. Epilepsy, Complex Partial / surgery. Female. Humans. Magnetic Resonance Imaging. Male. Memory / physiology. Neoplasm Recurrence, Local. Neurosurgical Procedures. Temporal Lobe / pathology. Temporal Lobe / surgery

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  • (PMID = 17884756.001).
  • [ISSN] 1294-9361
  • [Journal-full-title] Epileptic disorders : international epilepsy journal with videotape
  • [ISO-abbreviation] Epileptic Disord
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] France
  • [Chemical-registry-number] 0 / Anticonvulsants
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10. Zhang SK, Lu DH, Piao YS, Cai YN, Xu QZ: [Study of loss of heterozygosity in oligodendroglial tumors by real-time quantitative polymerase chain reaction-based microsatellite analysis]. Zhonghua Bing Li Xue Za Zhi; 2006 Dec;35(12):731-4
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  • [Title] [Study of loss of heterozygosity in oligodendroglial tumors by real-time quantitative polymerase chain reaction-based microsatellite analysis].
  • OBJECTIVE: To study the loss of heterozygosity (LOH) at chromosomes 1p or 19q in oligodendroglial tumors.
  • METHODS: Twenty-eight cases of oligodendroglial tumors were enrolled into the study.
  • Real-time quantitative polymerase chain reaction-based microsatellite analysis was performed on paraffin-embedded tumor tissues in order to study the status of chromosomes 1p and 19q.
  • RESULTS: Among the 28 cases of oligodendroglial tumors, 24 cases (85.7%) showed 1p LOH, while 18 cases (64.3%) showed 19q LOH and 17 cases (60.7%) showed LOH of both 1p and 19q.
  • CONCLUSIONS: Real-time quantitative polymerase chain reaction-based microsatellite analysis is a rapid and specific way in detecting LOH in paraffin-embedded tumor tissues.
  • LOH at 1p or 19q is present in majority of the oligodendroglial tumors studied.
  • [MeSH-major] Brain Neoplasms / genetics. Loss of Heterozygosity. Microsatellite Repeats. Oligodendroglioma / genetics. Polymerase Chain Reaction / methods
  • [MeSH-minor] Adult. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Female. Humans. Male. Middle Aged

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  • (PMID = 17374257.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
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11. Kanner AA, Staugaitis SM, Castilla EA, Chernova O, Prayson RA, Vogelbaum MA, Stevens G, Peereboom D, Suh J, Lee SY, Tubbs RR, Barnett GH: The impact of genotype on outcome in oligodendroglioma: validation of the loss of chromosome arm 1p as an important factor in clinical decision making. J Neurosurg; 2006 Apr;104(4):542-50
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  • OBJECT: Oligodendrogliomas are rare primary brain tumors.
  • They comprise approximately 5 to 33% of all glial tumors but differ from astrocytomas by being associated with a more favorable prognosis, making their correct identification important.
  • Allelic loss of chromosome arms 1p and 19q is found in a substantial subpopulation of tumors with an oligodendroglioma phenotype.
  • METHODS: Oligodendroglial neoplasms were studied using fluorescence in situ hybridization of formalin-fixed, paraffin-embedded tissue specimens; reference and target probe sets were used to map the telomeric regions of 1p and 19q.
  • [MeSH-minor] Adolescent. Adult. Aged. Brain / pathology. Cell Transformation, Neoplastic / genetics. Cell Transformation, Neoplastic / pathology. Chromosomes, Human, Pair 19. Decision Support Techniques. Female. Humans. In Situ Hybridization, Fluorescence. Male. Middle Aged. Prognosis. Reproducibility of Results. Retrospective Studies. Survival Rate

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  • (PMID = 16619658.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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12. Maiuri F, Del Basso De Caro M, Siciliano A, Peca C, Vergara P, Mariniello G, Pettinato G: Expression of growth factors in brain tumors: correlation with tumor grade, recurrence and survival. Clin Neuropathol; 2010 Mar-Apr;29(2):109-14
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  • [Title] Expression of growth factors in brain tumors: correlation with tumor grade, recurrence and survival.
  • OBJECTIVE: The aim of this study is to evaluate the correlation between the expression of some growth factors (GFs) and the tumor grade, recurrence and survival of brain glial and ependymal tumors.
  • MATERIAL AND METHODS: The expression of vascular endothelial growth factor (VEGF), epidermal growth factor receptor (EGFR), tenascine, transforming growth factor (TGFbeta), isomeres, platelet-derived growth factor (PDGF) and p53 was studied in 40 primary brain tumors, both low-grade and high-grade, including astrocytomas, oligodendrogliomas, glioblastomas and ependymomas.
  • The same GFs were also studied in 46 specimens of recurrent tumors from the same patients.
  • The positivity and intensity of the immunohistochemical expression were correlated with the tumor grade, the interval and type of recurrence, and the survival.
  • RESULTS: The expression of all GFs, excepting TGFbeta1, TGFbetaRI and tenascine, was found to be correlated with the tumor grade in all tumors of both astroglial and oligodendroglial origin, whereas ependymomas showed significant differences only for EGFR.
  • Low-grade (Grade II) tumors recurring as anaplastic (Grade III) forms showed GF expression rather similar to initially high-grade gliomas and significantly higher than that of low-grade (Grade II) tumors in both initial surgery and recurrence.
  • Besides, low-grade (Grade II) tumors recurring as low-grade showed significantly longer median recurrence time (5.4 vs. 3.5 years) and better median survival (8.3 vs. 5.4 years) than those recurring as anaplastic forms (WHO III).
  • CONCLUSION: The immunohistochemical study of expression of VEGF, EGFR, TGFbeta2, TGFbeta3, PDGF and p53 in all low-grade (Grade II) brain gliomas at the first operation may help to differentiate cases with slower evolution and longer survival from those with higher potential of anaplastic transformation.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / metabolism. Brain Neoplasms / mortality. Brain Neoplasms / pathology. Intercellular Signaling Peptides and Proteins / biosynthesis
  • [MeSH-minor] Adolescent. Adult. Aged. Child. Child, Preschool. Female. Humans. Immunohistochemistry. Immunophenotyping. Male. Middle Aged. Neoplasm Recurrence, Local / metabolism. Prognosis. Young Adult


13. Hergersberg M, Mariani L, Vassella E, Murtin C, Weis J, Moschopulos M, Laeng H, Landolt H, Huber A, Roelcke U: Age at diagnosis and loss of heterozygosity on chromosome 1p and 19q in oligodendroglial tumors. J Neurooncol; 2006 Nov;80(2):215-7
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  • [Title] Age at diagnosis and loss of heterozygosity on chromosome 1p and 19q in oligodendroglial tumors.
  • The age distribution and incidence of loss of heterozygosity (LOH) of 1p and 19q was analyzed in 85 oligodendroglial tumors WHO II and III.
  • The peak of tumor manifestation was in the age group of 35 to 55 years.
  • [MeSH-major] Brain Neoplasms / diagnosis. Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Loss of Heterozygosity / genetics. Oligodendroglioma / diagnosis. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Age of Onset. Aging / physiology. Female. Humans. Male. Middle Aged. O(6)-Methylguanine-DNA Methyltransferase / metabolism

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  • (PMID = 16685464.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Letter
  • [Publication-country] United States
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14. Schulz R, Vogel T, Dressel R, Krieglstein K: TGF-beta superfamily members, ActivinA and TGF-beta1, induce apoptosis in oligodendrocytes by different pathways. Cell Tissue Res; 2008 Dec;334(3):327-38
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  • Apoptotic functions of TGF-betas, in contrast to those of the activins, are well documented in the developing and adult nervous system.
  • In this study, we show, for the first time, an apoptotic function of ActivinA in the nervous system, i.e. in oligodendroglial progenitor cells.
  • Using the oligodendroglial cell line OLI-neu, we show that ActivinA acts autonomously, without cooperating with TGF-beta.
  • [MeSH-minor] Animals. Apoptosis Inducing Factor / pharmacology. Apoptosis Regulatory Proteins. Caspases / metabolism. Cell Nucleus / drug effects. Cell Nucleus / metabolism. DNA Fragmentation / drug effects. Mice. Mitochondria / drug effects. Mitochondria / metabolism. Protein Transport / drug effects. Smad Proteins / metabolism. Stem Cells / cytology. Stem Cells / drug effects. Tumor Suppressor Proteins / metabolism. bcl-2-Associated X Protein / metabolism. bcl-X Protein / metabolism

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  • (PMID = 19002501.001).
  • [ISSN] 1432-0878
  • [Journal-full-title] Cell and tissue research
  • [ISO-abbreviation] Cell Tissue Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Apoptosis Inducing Factor; 0 / Apoptosis Regulatory Proteins; 0 / PUMA protein, mouse; 0 / Smad Proteins; 0 / Transforming Growth Factor beta1; 0 / Tumor Suppressor Proteins; 0 / activin A; 0 / bcl-2-Associated X Protein; 0 / bcl-X Protein; 104625-48-1 / Activins; EC 3.4.22.- / Caspases
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15. Weller M, Berger H, Hartmann C, Schramm J, Westphal M, Simon M, Goldbrunner R, Krex D, Steinbach JP, Ostertag CB, Loeffler M, Pietsch T, von Deimling A, German Glioma Network: Combined 1p/19q loss in oligodendroglial tumors: predictive or prognostic biomarker? Clin Cancer Res; 2007 Dec 1;13(23):6933-7
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  • [Title] Combined 1p/19q loss in oligodendroglial tumors: predictive or prognostic biomarker?
  • PURPOSE: The combined loss of genetic material on chromosomes 1p and 19q is strongly associated with favorable outcome in patients with WHO grade 3 anaplastic oligodendroglial tumors.
  • The prognostic value of 1p/19q loss in WHO grade 2 oligodendroglial tumors is less well defined.
  • CONCLUSIONS: Combined 1p/19q loss is not a sensitive prognostic biomarker in patients with oligodendroglial tumors who do not receive radiotherapy or chemotherapy.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosome Deletion. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Astrocytoma / genetics. Astrocytoma / pathology. Biomarkers, Tumor / genetics. Disease-Free Survival. Female. Humans. Male. Middle Aged. Neoplasm Staging. Predictive Value of Tests

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  • (PMID = 18056167.001).
  • [ISSN] 1078-0432
  • [Journal-full-title] Clinical cancer research : an official journal of the American Association for Cancer Research
  • [ISO-abbreviation] Clin. Cancer Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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16. Takei H, Yogeswaren ST, Wong KK, Mehta V, Chintagumpala M, Dauser RC, Lau CC, Adesina AM: Expression of oligodendroglial differentiation markers in pilocytic astrocytomas identifies two clinical subsets and shows a significant correlation with proliferation index and progression free survival. J Neurooncol; 2008 Jan;86(2):183-90
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  • [Title] Expression of oligodendroglial differentiation markers in pilocytic astrocytomas identifies two clinical subsets and shows a significant correlation with proliferation index and progression free survival.
  • We present here the pattern of expression of oligodendroglial differentiation markers (ODMs) in PAs by immunohistochemistry and their correlation with PI and PFS.
  • [MeSH-major] Antigens, Differentiation / metabolism. Astrocytoma / metabolism. Biomarkers, Tumor / metabolism. Brain Neoplasms / metabolism. Oligodendroglia / metabolism
  • [MeSH-minor] Adolescent. Adult. Basic Helix-Loop-Helix Transcription Factors / metabolism. Cell Differentiation. Child. Child, Preschool. Female. Gene Expression Regulation, Neoplastic / physiology. Humans. Immunohistochemistry. Infant. Ki-67 Antigen / metabolism. Male. Myelin Basic Protein / metabolism. Nerve Tissue Proteins / metabolism. Receptor, Platelet-Derived Growth Factor alpha / metabolism. Retrospective Studies. Survival Analysis

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  • (PMID = 17690840.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Grant] United States / NCI NIH HHS / CA / R21 CA120534
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antigens, Differentiation; 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / Biomarkers, Tumor; 0 / Ki-67 Antigen; 0 / Myelin Basic Protein; 0 / Nerve Tissue Proteins; 0 / OLIG1 protein, human; 0 / OLIG2 protein, human; EC 2.7.10.1 / Receptor, Platelet-Derived Growth Factor alpha
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17. Kaloshi G, Guillevin R, Martin-Duverneuil N, Laigle-Donadey F, Psimaras D, Marie Y, Mokhtari K, Hoang-Xuan K, Delattre JY, Sanson M: Gray matter involvement predicts chemosensitivity and prognosis in gliomatosis cerebri. Neurology; 2009 Aug 11;73(6):445-9
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  • BACKGROUND: In gliomatosis cerebri (GC), defined as a diffuse neoplastic glial cell infiltration of the brain, upfront chemotherapy is often proposed as an alternative to radiotherapy.
  • There was no significant correlation with histologic subtype (oligodendroglial vs astrocytic or mixed GC), grading, tumor localization (particularly basal nuclei involvement), or laterality.
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Antineoplastic Agents / pharmacology. Antineoplastic Agents / therapeutic use. Cell Movement / physiology. Female. Follow-Up Studies. Humans. Male. Middle Aged. Neuroglia / pathology. Predictive Value of Tests. Prognosis. Retrospective Studies. Survival Rate. Treatment Outcome. Young Adult

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  • (PMID = 19667319.001).
  • [ISSN] 1526-632X
  • [Journal-full-title] Neurology
  • [ISO-abbreviation] Neurology
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antineoplastic Agents
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18. Günther HS, Schmidt NO, Phillips HS, Kemming D, Kharbanda S, Soriano R, Modrusan Z, Meissner H, Westphal M, Lamszus K: Glioblastoma-derived stem cell-enriched cultures form distinct subgroups according to molecular and phenotypic criteria. Oncogene; 2008 May 1;27(20):2897-909
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  • Tumor cells with stem cell-like properties can be cultured from human glioblastomas by using conditions that select for the expansion of neural stem cells.
  • They showed a multipotent differentiation profile along neuronal, astroglial and oligodendroglial lineages, grew spherically in vitro, expressed CD133 and formed highly invasive tumors in vivo.
  • [MeSH-major] Brain Neoplasms / metabolism. Glioblastoma / metabolism. Neoplastic Stem Cells / classification. Neoplastic Stem Cells / metabolism. Phenotype
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Animals. Cell Culture Techniques. Cell Line, Tumor. Female. Gene Expression Profiling. Humans. Male. Mice. Mice, Nude. Middle Aged. Tumor Cells, Cultured


19. Kapoor GS, Gocke TA, Chawla S, Whitmore RG, Nabavizadeh A, Krejza J, Lopinto J, Plaum J, Maloney-Wilensky E, Poptani H, Melhem ER, Judy KD, O'Rourke DM: Magnetic resonance perfusion-weighted imaging defines angiogenic subtypes of oligodendroglioma according to 1p19q and EGFR status. J Neurooncol; 2009 May;92(3):373-86
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  • We have recently shown that magnetic resonance perfusion-weighted imaging (MR-PWI) may be useful in predicting the histopathological grade or cytogenetic type of oligodendroglial neoplasms.
  • MR-PWI allows noninvasive determination of relative tumor blood volume (rTBV), which may reflect the degree of neoplastic angiogenesis and metabolism.
  • The present study was aimed to correlate rTBV to the angiogenic markers and EGFR expression in oligodendroglial tumors with 1p/19q LOH or 1p LOH (Group 1) and 1p19q intact alleles or 19q LOH (Group 2), respectively.
  • However, the differences between Group 1 and Group 2 were not significant in grade III tumors.
  • Probe-based real-time RT-PCR analyses showed that 12% of Group 2 high-grade tumors with intact 1p19q exhibited dramatic EGFR overexpression (designated EGFR-high).
  • Group 1 tumors showed significantly higher rTBV than Group 2 tumors, independent of the EGFR-high subtype.
  • Real-time RT-PCR analyses showed increased expression of VEGF, CD31 and CD105 in Group 1 tumors as compared to Group 2 tumors, excluding the EGFR-high subtype.
  • Therefore, the combined use of extensive molecular profiling and advanced MR imaging modalities may improve the accuracy of tumor grading, provide prognostic information, and has the potential to influence treatment decisions.
  • [MeSH-major] Brain Neoplasms / diagnosis. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Neovascularization, Pathologic / diagnosis. Oligodendroglioma / diagnosis. Receptor, Epidermal Growth Factor / metabolism
  • [MeSH-minor] Adult. Biomarkers, Tumor / analysis. Female. Humans. In Situ Hybridization, Fluorescence. Loss of Heterozygosity. Magnetic Resonance Angiography. Male. Middle Aged. Reverse Transcriptase Polymerase Chain Reaction

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  • (PMID = 19357963.001).
  • [ISSN] 1573-7373
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Grant] United States / NCI NIH HHS / CA / R01 CA-90586
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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20. Homma T, Fukushima T, Vaccarella S, Yonekawa Y, Di Patre PL, Franceschi S, Ohgaki H: Correlation among pathology, genotype, and patient outcomes in glioblastoma. J Neuropathol Exp Neurol; 2006 Sep;65(9):846-54
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  • Key histologic characteristics, including major cell types (small cell, nonsmall cell), other components such as oligodendroglial components, gemistocytes, multinucleated giant cells, as well as necrosis and microvascular proliferation, of 420 cases of glioblastoma within a population-based study (1) were reassessed and correlated with patients' clinical outcome and key genetic alterations.
  • An oligodendroglial component was detected in 20% of glioblastomas; these patients were significantly younger (54.4 +/- 13.6 vs 59.2 +/- 13.8 years; p = 0.0049) and survived longer (10.3 +/- 8.3 vs 8.2 +/- 8.4 months; p = 0.0647).
  • However, multivariate analyses with adjustment for age and gender did not show the presence of an oligodendroglial component to be predictive of longer survival.
  • Multivariate analysis with adjustment for age and gender showed that necrosis was significantly associated with wild-type TP53 and absence of an oligodendroglial component.
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / pathology. Glioblastoma / genetics. Glioblastoma / pathology
  • [MeSH-minor] Adult. Age Factors. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Community Health Planning. Female. Genes, erbB-1 / genetics. Genotype. Humans. Loss of Heterozygosity. Male. Middle Aged. Multivariate Analysis. Necrosis. PTEN Phosphohydrolase / genetics. Sex Factors. Statistics as Topic. Switzerland / epidemiology. Tumor Suppressor Protein p53 / genetics


21. Lavon I, Zrihan D, Zelikovitch B, Fellig Y, Fuchs D, Soffer D, Siegal T: Longitudinal assessment of genetic and epigenetic markers in oligodendrogliomas. Clin Cancer Res; 2007 Mar 1;13(5):1429-37
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  • PURPOSE: Because little is known about the evolution of genetic and epigenetic changes that occur during tumor progression in oligodendrogliomas, we evaluated these changes in paired early and progressive oligodendrogliomas.
  • RESULTS: In early tumors, 60.8% were of low grade compared with only 17% low-grade tumors at recurrence.
  • Of 17 early tumors described as pure oligodendrogliomas, 76.5% remained in this lineage, regardless of their grade, whereas others changed to astrocytic tumors.
  • Oligoastrocytic tumors had a significantly higher tendency to transform to astrocytic tumors.
  • All pure oligodendrogliomas with 1p/19q codeletions remained phenotypically unchanged, unlike mixed tumors with codeletions, of which 83% changed their cell lineage.
  • Of tumors with early 1p deletion, 80% remained oligodendroglial at progression, whereas 75% of tumors with an intact 1p changed to astrocytic phenotype.
  • 10q loss was uncommon in both early and progressive tumors.
  • The proportional gain in methylation at progression was 31% for tumors with early 1p deletion, unlike tumors with an intact 1p, which had an 87.5% gain of methylation at progression.
  • CONCLUSIONS: Pure oligodendrogliomas with 1p/19q deletion tend to retain their cell phenotype and genetic profile unlike tumors with no deletions or mixed histology.
  • MGMT promoter methylation is more pronounced at tumor progression, particularly in tumors with an intact 1p.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. DNA Methylation. Epigenesis, Genetic. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. DNA Modification Methylases / genetics. DNA Repair Enzymes / genetics. Female. Humans. Immunohistochemistry. Male. Microsatellite Repeats. Middle Aged. Phenotype. Polymerase Chain Reaction. Promoter Regions, Genetic. Tumor Suppressor Proteins / genetics

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  • (PMID = 17332285.001).
  • [ISSN] 1078-0432
  • [Journal-full-title] Clinical cancer research : an official journal of the American Association for Cancer Research
  • [ISO-abbreviation] Clin. Cancer Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Tumor Suppressor Proteins; EC 2.1.1.- / DNA Modification Methylases; EC 2.1.1.63 / MGMT protein, human; EC 6.5.1.- / DNA Repair Enzymes
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22. Uzuka T, Kakita A, Inenaga C, Takahashi H, Tanaka R, Takahashi H: Frontal anaplastic oligodendroglioma showing multi-organ metastases after a long clinical course. Case report. Neurol Med Chir (Tokyo); 2007 Apr;47(4):174-7
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  • Neuroimaging studies revealed a right frontal tumor.
  • Histological examinations of biopsy specimens revealed that the tumor was oligodendroglial in nature.
  • Despite irradiation, combination chemotherapy, and interstitial hyperthermia, the tumor grew rapidly but was confined to the cavity created by previous removal operations.
  • At autopsy, generalized metastases from the tumor were identified at various sites, including the dura mater covering the frontal lobes and thoracic cord, cavernous sinus, tuberculum sellae, spleen, liver, pancreas, lungs, paratracheal lymph nodes, vertebral bodies, ribs, sternum, pelvis, dorsal root ganglia, and iliopsoas muscle.
  • [MeSH-major] Brain Neoplasms / pathology. Frontal Lobe. Oligodendroglioma / secondary
  • [MeSH-minor] Adolescent. Adult. Female. Humans. Time Factors


23. van den Bent MJ, Dubbink HJ, Marie Y, Brandes AA, Taphoorn MJ, Wesseling P, Frenay M, Tijssen CC, Lacombe D, Idbaih A, van Marion R, Kros JM, Dinjens WN, Gorlia T, Sanson M: IDH1 and IDH2 mutations are prognostic but not predictive for outcome in anaplastic oligodendroglial tumors: a report of the European Organization for Research and Treatment of Cancer Brain Tumor Group. Clin Cancer Res; 2010 Mar 1;16(5):1597-604
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  • [Title] IDH1 and IDH2 mutations are prognostic but not predictive for outcome in anaplastic oligodendroglial tumors: a report of the European Organization for Research and Treatment of Cancer Brain Tumor Group.
  • [MeSH-major] Brain Neoplasms / genetics. Isocitrate Dehydrogenase / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Antineoplastic Combined Chemotherapy Protocols / therapeutic use. Combined Modality Therapy. DNA Modification Methylases / genetics. DNA Repair Enzymes / genetics. Disease-Free Survival. Female. Genes, erbB-1. Humans. In Situ Hybridization, Fluorescence. Kaplan-Meier Estimate. Lomustine / therapeutic use. Male. Middle Aged. Mutation. Polymerase Chain Reaction. Procarbazine / therapeutic use. Prognosis. Promoter Regions, Genetic. Radiotherapy. Treatment Outcome. Tumor Suppressor Proteins / genetics. Vincristine / therapeutic use. Young Adult


24. Kato T, Shinoda J, Nakayama N, Miwa K, Okumura A, Yano H, Yoshimura S, Maruyama T, Muragaki Y, Iwama T: Metabolic assessment of gliomas using 11C-methionine, [18F] fluorodeoxyglucose, and 11C-choline positron-emission tomography. AJNR Am J Neuroradiol; 2008 Jun;29(6):1176-82
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  • We measured the tumor/normal brain uptake ratio (T/N ratio) on each PET and investigated the correlations among the tracer uptake, tumor grade, tumor type, and tumor proliferation activity.
  • In addition, we compared the ease of visual evaluation for tumor detection.
  • RESULTS: All 3 of the tracers showed positive correlations with astrocytic tumor (AT) grades (II/IV and III/IV).
  • The MET T/N ratio of oligodendroglial tumors (OTs) was significantly higher than that of ATs of the same grade.
  • Tumor grade and type influenced MET uptake only.
  • All of the tracers showed significantly positive correlations with Mib-1 labeling index in ATs but not in OTs and oligoastrocytic tumors.
  • In terms of visual evaluation of tumor localization, MET PET is superior to FDG and CHO PET in all of the gliomas, due to its straightforward detection of "hot lesions".
  • [MeSH-major] Brain Neoplasms / metabolism. Choline / pharmacokinetics. Fluorodeoxyglucose F18 / pharmacokinetics. Glioma / metabolism. Methionine / pharmacokinetics. Positron-Emission Tomography / methods
  • [MeSH-minor] Adult. Carbon Radioisotopes / pharmacokinetics. Female. Gene Expression Profiling / methods. Humans. Male. Metabolic Clearance Rate. Middle Aged. Radiopharmaceuticals / pharmacokinetics. Tissue Distribution

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  • [CommentIn] Nat Clin Pract Neurol. 2008 Sep;4(9):470-1 [18628750.001]
  • [CommentIn] AJNR Am J Neuroradiol. 2008 Nov;29(10):e96 [19008320.001]
  • (PMID = 18388218.001).
  • [ISSN] 1936-959X
  • [Journal-full-title] AJNR. American journal of neuroradiology
  • [ISO-abbreviation] AJNR Am J Neuroradiol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Carbon Radioisotopes; 0 / Radiopharmaceuticals; 0Z5B2CJX4D / Fluorodeoxyglucose F18; AE28F7PNPL / Methionine; N91BDP6H0X / Choline
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25. Roldán G, Scott J, George D, Parney I, Easaw J, Cairncross G, Forsyth P, Yan E: Leptomeningeal disease from oligodendroglioma: clinical and molecular analysis. Can J Neurol Sci; 2008 May;35(2):204-9
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  • Patients with both oligodendroglial tumors and LMD were identified.
  • Median age at tumor diagnosis was 41 years (range, 28-50).
  • None had radiographic or pathological evidence of leptomeningeal or subependymal tumor at initial diagnosis.
  • [MeSH-minor] Adult. Disease Progression. Female. Humans. Longitudinal Studies. Male. Middle Aged. Retrospective Studies

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  • (PMID = 18574935.001).
  • [ISSN] 0317-1671
  • [Journal-full-title] The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques
  • [ISO-abbreviation] Can J Neurol Sci
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Canada
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26. Hata N, Shono T, Mizoguchi M, Matsumoto K, Guan Y, Nagata S, Hayashi K, Iwaki T, Sasaki T: Loss of heterozygosity analysis in an anaplastic oligodendroglioma arising after radiation therapy. Neurol Res; 2007 Oct;29(7):723-6
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  • OBJECTIVE AND IMPORTANCE: Oligodendroglial tumors rarely occur after radiation therapy.
  • CLINICAL PRESENTATION AND INTERVENTION: A 41-year-old man who had received radiation therapy for a tumor of the suprasellar and pineal regions 31 years previously, presented with headache and progressive right hemiparesis.
  • Total removal of the tumor was performed through left frontoparietal craniotomy, and the histologic diagnosis was anaplastic oligodendroglioma.
  • Based on the genetic analysis, this tumor was considered to be sensitive to chemotherapy.
  • However, tumor recurrence was detected only 3 months after the surgery.
  • Despite additional radiochemotherapy, the tumor aggressively increased in size and the patient died with multiple recurrent tumors 1 year after surgery.
  • The significance of 1p and 19q LOH in radiation-induced oligodendroglial tumors might differ from that in spontaneous counterparts.
  • [MeSH-major] Brain Neoplasms / genetics. Cell Transformation, Neoplastic / genetics. Frontal Lobe / pathology. Loss of Heterozygosity / genetics. Neoplasms, Radiation-Induced / genetics. Oligodendroglioma / genetics. Radiotherapy / adverse effects
  • [MeSH-minor] Adult. Antineoplastic Agents / therapeutic use. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 17 / genetics. Chromosomes, Human, Pair 19 / genetics. Fatal Outcome. Humans. Magnetic Resonance Imaging. Male. Microsatellite Repeats / genetics. Neoplasm Recurrence, Local. Predictive Value of Tests. Treatment Failure


27. Xiong NX, Zhao HY, Zhang FC, He ZQ: Negative correlation of Nogo-A with the malignancy of oligodendroglial tumor. Neurosci Bull; 2007 Jan;23(1):41-5
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  • [Title] Negative correlation of Nogo-A with the malignancy of oligodendroglial tumor.
  • The present study is to explore the relationship between the expression of Nogo-A and the malignancy of oligodendroglial tumors in patients.
  • METHODS: Tumor tissue samples with different malignancy grade were obtained from the hospitals.
  • The samples used for detection had been diagnosed as oligodendroglial tumors (oligodendroglioma or anaplastic oligodendroglioma).
  • The correlation test between the Nogo-A expression and the morphological changes (the percentages of atypical cells and mitotic cells in the tumors) related to the malignancy of tumor tissues was performed.
  • RESULTS: There was significant negative correlation between the Nogo-A expression and the morphological change of tumor tissues according to immunohistochemistry.
  • CONCLUSION: Nogo-A expression was negatively correlated with the malignancy grade of oligodendroglial tumors.
  • [MeSH-major] Biomarkers, Tumor / metabolism. Brain Neoplasms / diagnosis. Brain Neoplasms / metabolism. Myelin Proteins / metabolism. Oligodendroglioma / diagnosis. Oligodendroglioma / metabolism
  • [MeSH-minor] Adult. Down-Regulation / physiology. Female. Humans. Immunohistochemistry. Male. Middle Aged. Mitotic Index. Neoplasm Invasiveness / diagnosis. Nogo Proteins. Predictive Value of Tests

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  • (PMID = 17592524.001).
  • [ISSN] 1673-7067
  • [Journal-full-title] Neuroscience bulletin
  • [ISO-abbreviation] Neurosci Bull
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Singapore
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Myelin Proteins; 0 / Nogo Proteins; 0 / RTN4 protein, human
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28. Daumas-Duport C, Koziak M, Miquel C, Nataf F, Jouvet A, Varlet P: [Reappraisal of the Sainte-Anne Hospital classification of oligodendrogliomas in view of retrospective studies]. Neurochirurgie; 2005 Sep;51(3-4 Pt 2):247-53
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  • PURPOSE: Definition of homogeneous tumor groups of oligodendrogliomas or oligo-astrocytomas is a basic condition for an adequate evaluation and comparison of the results of treatments in patients from various institutions.
  • However, increasing discordances are observed in the histological diagnosis of these tumors.
  • PATIENTS AND METHODS: This study included 251 adult patients in whom a SA grade A or B oligodendroglioma or oligo-astrocytoma was newly diagnosed at our institution from 1984 to 2003.
  • The tumors were graded A: no CH and no EH; in B: CH and /or HE++, and A/B: EH + but no CE.
  • RESULTS: 70.1% of the tumors were classified as "pure" oligodendroglioma, 19.5% as "polymorphous oligo-astroastrocytoma" and 10.3% as "gemistocytic oligo-astrocytoma".
  • In grade A, or B tumors, the presence of a polymorphous or a gemistocytic component had no significant influence on survival; however respectively 53% and 65% of these tumours versus 32% of "pure" oligodendrogliomas were grade B at the time of diagnosis.
  • After regrouping of the histological subtypes and of the tumors with HE+ or absent, the series included 153 oligodendrogliomas grade A and 98 grade B.
  • Survival in patients with grade A versus grade B tumors was respectively 142 versus 52 months (p<0.0001).
  • In grade B tumors, necrosis had no significant influence on survival.
  • In tumors with or without CE, patient survival was respectively 148 versus 40 months (p<0.0001).
  • On post contrast MRI done in 235 patients, only 7 tumors (3%) were grade A/B (EH++ but no CH).
  • 1) tumors diagnosed according to the Ste-Anne classification as oligodendroglioma or oligo-astrocytoma be regrouped in a unique category, 2) independent of their histological type and grade according to the WHO, gliomas that do not show CE be regrouped with SA oligodendrogliomas grade A, 3) concerning gliomas that show CE on MRI: oligodendrogliomas or oligo-astrocytomas WHO grade II or III, as well as WHO secondary glioblastomas or glioblastomas with an oligodendroglial component, be regrouped with SA oligodendrogliomas grade B; however tumors that show ring-like CE surrounding large foci of necrosis and finger-like "peritumoral" edema should be excluded or analysed separately.
  • [MeSH-major] Brain / pathology. Brain / radiography. Brain Neoplasms / classification. Glioma / classification. Oligodendroglioma / classification
  • [MeSH-minor] Adult. France. Hospitals. Humans. Magnetic Resonance Imaging. Neoplasm Staging. Retrospective Studies. Survival Rate. Tomography, X-Ray Computed

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  • (PMID = 16292168.001).
  • [ISSN] 0028-3770
  • [Journal-full-title] Neuro-Chirurgie
  • [ISO-abbreviation] Neurochirurgie
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] France
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29. Barbashina V, Salazar P, Ladanyi M, Rosenblum MK, Edgar MA: Glioneuronal tumor with neuropil-like islands (GTNI): a report of 8 cases with chromosome 1p/19q deletion analysis. Am J Surg Pathol; 2007 Aug;31(8):1196-202
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  • [Title] Glioneuronal tumor with neuropil-like islands (GTNI): a report of 8 cases with chromosome 1p/19q deletion analysis.
  • Glioneuronal tumor with neuropil-like islands (GTNI) is a rare neoplasm harboring circumscribed loci of neuronal differentiation and diffusely infiltrating astroglial and oligodendrocytelike components.
  • All tumors showed characteristic histologic features and immunoprofile.
  • One primary tumor displayed frankly malignant histology with frequent mitoses, microvascular proliferation, and necrosis.
  • This tumor progressed within months of the initial resection.
  • Three other tumors (2 low-grade and 1 showing only focal microvascular proliferation) recurred at 2 years, 3 years, and 1 year, respectively.
  • No evidence of 1p/19q losses was found in 7 of 8 tumors.
  • One tumor demonstrated small interstitial deletions at 1p36 (at D1S1612 and D1S513, but not at D1S548 or D1S1592) and a small interstitial deletion at 19q13 (at D19S219 and D19S412, but not at PLA2G4C).
  • The lack of large, whole-arm 1p/19q losses (such as those found in oligodendroglial tumors), aberrant p53 expression, and the predominance of astroglial components may indicate a biologic relationship of the GTNI to diffuse astrocytoma.
  • Although GTNI shares some morphologic features with recently reported cases of oligodendroglioma with neurocytic differentiation, the 2 tumors appear different at the molecular genetic level.
  • [MeSH-major] Brain Neoplasms / pathology. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Ganglioglioma / pathology. Neuropil / pathology
  • [MeSH-minor] Adult. Aged. Biomarkers, Tumor / analysis. Combined Modality Therapy. DNA, Neoplasm / analysis. Female. Humans. Immunohistochemistry. Male. Middle Aged. Neoplasm Recurrence, Local. Synaptophysin / analysis

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  • (PMID = 17667543.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / DNA, Neoplasm; 0 / Synaptophysin
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30. Jeuken JW, van der Maazen RW, Wesseling P: Molecular diagnostics as a tool to personalize treatment in adult glioma patients. Technol Cancer Res Treat; 2006 Jun;5(3):215-29
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  • [Title] Molecular diagnostics as a tool to personalize treatment in adult glioma patients.
  • Gliomas, the most frequent primary brain tumors in humans, form a heterogeneous group, encompassing many different histological types and malignancy grades.
  • The major representatives in this subgroup are the diffuse astrocytic, oligodendroglial, and mixed oligo-astrocytic tumors.
  • After summarizing the most relevant genetic aberrations and pathways in these tumors detected up till now, this review will discuss the clinical relevance of this information.
  • [MeSH-major] Biomarkers, Tumor / genetics. Brain Neoplasms / genetics. Glioma / genetics. Molecular Diagnostic Techniques
  • [MeSH-minor] Cell Cycle Proteins / genetics. DNA Methylation. DNA Repair. Gene Dosage. Humans. Neovascularization, Pathologic. Receptor Protein-Tyrosine Kinases / genetics. Retinoblastoma Protein / genetics. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 16700618.001).
  • [ISSN] 1533-0346
  • [Journal-full-title] Technology in cancer research & treatment
  • [ISO-abbreviation] Technol. Cancer Res. Treat.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Cell Cycle Proteins; 0 / Retinoblastoma Protein; 0 / Tumor Suppressor Protein p53; EC 2.7.10.1 / Receptor Protein-Tyrosine Kinases
  • [Number-of-references] 94
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31. Heimberger AB, Abou-Ghazal M, Reina-Ortiz C, Yang DS, Sun W, Qiao W, Hiraoka N, Fuller GN: Incidence and prognostic impact of FoxP3+ regulatory T cells in human gliomas. Clin Cancer Res; 2008 Aug 15;14(16):5166-72
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  • EXPERIMENTAL DESIGN: We measured the incidence of Tregs in 135 glial tumors (including all pathologic types) in a glioma microarray using immunohistochemical analysis.
  • Results were categorized according to the total number of Tregs within the tumors.
  • RESULTS: Tregs were not present in normal brain tissue and were very rarely found in low-grade gliomas and oligodendrogliomas.
  • We observed significant differences in the prevalence of Tregs between astrocytic and oligodendroglial tumors, between tumors of different grades, and between different pathologic types of tumors.
  • The presence of Tregs within GBMs did not alter the median survival in patients from whom the tumors were obtained.
  • CONCLUSIONS: Treg infiltration differed significantly in the tumors according to lineage, pathology, and grade.
  • Tregs seemed to have the highest predilection for tumors of the astrocytic lineage and specifically in the high-grade gliomas, such as GBM.
  • [MeSH-major] Biomarkers, Tumor / immunology. Brain Neoplasms / immunology. Forkhead Transcription Factors / metabolism. Glioma / immunology. Lymphocytes, Tumor-Infiltrating / immunology. T-Lymphocytes, Regulatory / immunology
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Cell Lineage. Child. Child, Preschool. Female. Flow Cytometry. Humans. Immunohistochemistry. Incidence. Kaplan-Meier Estimate. Male. Middle Aged. Prognosis. T-Lymphocyte Subsets / immunology. Tissue Array Analysis

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  • (PMID = 18698034.001).
  • [ISSN] 1078-0432
  • [Journal-full-title] Clinical cancer research : an official journal of the American Association for Cancer Research
  • [ISO-abbreviation] Clin. Cancer Res.
  • [Language] eng
  • [Grant] United States / NCI NIH HHS / CA / R01 CA120813-01A1
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / FOXP3 protein, human; 0 / Forkhead Transcription Factors
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32. Gonzalez-Perez O, Romero-Rodriguez R, Soriano-Navarro M, Garcia-Verdugo JM, Alvarez-Buylla A: Epidermal growth factor induces the progeny of subventricular zone type B cells to migrate and differentiate into oligodendrocytes. Stem Cells; 2009 Aug;27(8):2032-43
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  • New neurons and oligodendrocytes are continuously produced in the subventricular zone (SVZ) of adult mammalian brains.
  • However, the fate of cells derived from adult neural stem cells after EGF stimulation remains unknown.
  • This work indicates that EGF infusion can greatly expand the number of progenitors derived from the SVZ primary progenitors which migrate and differentiate into oligodendroglial cells.

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  • (PMID = 19544429.001).
  • [ISSN] 1549-4918
  • [Journal-full-title] Stem cells (Dayton, Ohio)
  • [ISO-abbreviation] Stem Cells
  • [Language] ENG
  • [Grant] United States / NICHD NIH HHS / HD / HD 32116; United States / NICHD NIH HHS / HD / R37 HD032116-15; United States / NICHD NIH HHS / HD / R37 HD032116; United States / NICHD NIH HHS / HD / R01 HD032116; United States / NICHD NIH HHS / HD / R37 HD032116-16
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 62229-50-9 / Epidermal Growth Factor
  • [Other-IDs] NLM/ NIHMS366814; NLM/ PMC3346259
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33. Cui XL, Zhao ZG, Ren XH, Sui DL, Chu JS, Tang K, Zeng C, Lin S: [Characteristics of combining loss of heterozygosity of 1p/19q in glioma]. Zhonghua Wai Ke Za Zhi; 2010 Jun 1;48(11):852-5
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  • METHODS: The status of 1p and 19q of 138 glioma specimen from January 2009 to December 2009 was evaluated by Fluorescence in situ hybridization (FISH) method, and the frequencies of combining LOH of 1p/19q were compared between different pathologies, brain sub-regions, genders and ages.
  • RESULTS: The frequencies of combined LOH of 1p and 19q of oligodendroglial (81.3%) and oligo astrocytic tumors (55.8%) were significantly higher than that of astrocytic tumor (22.2%) (P < 0.01), and the frequency of oligodendroglial tumor was significantly higher than that of oligo astrocytic tumor (P < 0.05).
  • CONCLUSION: Combining LOH of 1p and 19q has significant correlation with the pathologies and brain sub-regions.
  • [MeSH-major] Brain Neoplasms / genetics. Glioma / genetics. Loss of Heterozygosity
  • [MeSH-minor] Adolescent. Adult. Aged. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Female. Humans. Male. Middle Aged. Young Adult

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  • (PMID = 21163056.001).
  • [ISSN] 0529-5815
  • [Journal-full-title] Zhonghua wai ke za zhi [Chinese journal of surgery]
  • [ISO-abbreviation] Zhonghua Wai Ke Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] China
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34. Lima-Ramos V, Pacheco-Figueiredo L, Costa S, Pardal F, Silva A, Amorim J, Lopes JM, Reis RM: TP53 codon 72 polymorphism in susceptibility, overall survival, and adjuvant therapy response of gliomas. Cancer Genet Cytogenet; 2008 Jan 1;180(1):14-9
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  • TP53 is a key tumor suppressor gene that encodes a transcriptional factor involved in several cellular mechanisms, including growth arrest, DNA repair, and induction of apoptosis.
  • No statistically significant differences were observed in the genotypic and allelic frequencies between glioma and control groups, and no statistically significant differences were observed with stratification of gliomas into distinct histological subtypes: astrocytic (n = 115), glioblastoma (n = 75), and oligodendroglial (n = 54) tumors.
  • In this first assessment of the role of TP53 Arg72Pro polymorphism in a large series of Portuguese glioma tumors, no association was observed with glioma susceptibility or overall survival, except for patients submitted to adjuvant therapy.
  • [MeSH-major] Brain Neoplasms / genetics. Genes, p53. Genetic Predisposition to Disease. Glioma / genetics. Polymorphism, Genetic
  • [MeSH-minor] Adult. Arginine. Case-Control Studies. Codon. Combined Modality Therapy. Female. Gene Frequency. Humans. Male. Middle Aged. Proline. Retrospective Studies. Survival Rate. Treatment Outcome

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  • (PMID = 18068527.001).
  • [ISSN] 0165-4608
  • [Journal-full-title] Cancer genetics and cytogenetics
  • [ISO-abbreviation] Cancer Genet. Cytogenet.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Codon; 94ZLA3W45F / Arginine; 9DLQ4CIU6V / Proline
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35. Barnett JA, Urbauer DL, Murray GI, Fuller GN, Heimberger AB: Cytochrome P450 1B1 expression in glial cell tumors: an immunotherapeutic target. Clin Cancer Res; 2007 Jun 15;13(12):3559-67
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  • [Title] Cytochrome P450 1B1 expression in glial cell tumors: an immunotherapeutic target.
  • EXPERIMENTAL DESIGN: We studied the frequency and extent of CYP1B1 expression by immunohistochemical analysis in 269 glial tumors (including all major pathologic types) on a tissue microarray.
  • RESULTS: Overall, increased CYP1B1 expression in glial tumors was associated with decreased patient survival time (P < 0.0014 for both percentage and intensity of staining).
  • A significant difference existed in percentage and intensity of staining between astrocytic and oligodendroglial tumors (P = 0.0002 and 0.0003, respectively), between grades of tumors (P < 0.0001 and 0.0079), and between pathologic types of tumors (P < 0.0001 and 0.0339).
  • Paradoxically, within specific tumor pathologies, there was a trend toward increased survival as CYP1B1 expression increased.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / metabolism. Cytochrome P-450 Enzyme System / biosynthesis. Gene Expression. Glioma / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Aryl Hydrocarbon Hydroxylases. Child. Child, Preschool. Cytochrome P-450 CYP1B1. Female. Humans. Immunohistochemistry. Kaplan-Meier Estimate. Male. Middle Aged. Prognosis. Tissue Array Analysis

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  • (PMID = 17575219.001).
  • [ISSN] 1078-0432
  • [Journal-full-title] Clinical cancer research : an official journal of the American Association for Cancer Research
  • [ISO-abbreviation] Clin. Cancer Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 9035-51-2 / Cytochrome P-450 Enzyme System; EC 1.14.14.1 / Aryl Hydrocarbon Hydroxylases; EC 1.14.14.1 / CYP1B1 protein, human; EC 1.14.14.1 / Cytochrome P-450 CYP1B1
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36. Stockhammer F, Thomale UW, Plotkin M, Hartmann C, Von Deimling A: Association between fluorine-18-labeled fluorodeoxyglucose uptake and 1p and 19q loss of heterozygosity in World Health Organization Grade II gliomas. J Neurosurg; 2007 Apr;106(4):633-7
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  • OBJECT: Oligodendroglial tumors harboring combined 1p and 19q loss (1p/19q LOH) are characterized by a favorable prognosis and response to chemotherapy and radiotherapy, but detection of 1p/19q LOH relies on postoperative procedures.
  • The authors investigated the potential of fluorine-18-labeled fluorodeoxyglucose (FDG) uptake in positron emission tomography (PET) to predict 1p/19q LOH preoperatively in tumors whose appearance on initial magnetic resonance images was consistent with that of low-grade glioma.
  • METHODS: The study population comprised 25 patients who had undergone preoperative FDG-PET followed by tumor resection.
  • All tumor specimens were graded according to the World Health Organization (WHO) classification system.
  • Raised glucose utilization within the tumor was seen in the six of eight WHO Grade II gliomas with 1p/19q LOH and in none of the WHO Grade II gliomas without this genetic alteration (p = 0.003).
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / radionuclide imaging. Glioma / genetics. Glioma / radionuclide imaging. Loss of Heterozygosity. Positron-Emission Tomography
  • [MeSH-minor] Adult. Aged. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Female. Fluorodeoxyglucose F18. Humans. Male. Microsatellite Repeats / genetics. Middle Aged. Predictive Value of Tests. Radiopharmaceuticals. Retrospective Studies

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  • (PMID = 17432715.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Radiopharmaceuticals; 0Z5B2CJX4D / Fluorodeoxyglucose F18
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37. Lavon I, Refael M, Zelikovitch B, Shalom E, Siegal T: Serum DNA can define tumor-specific genetic and epigenetic markers in gliomas of various grades. Neuro Oncol; 2010 Feb;12(2):173-80
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  • [Title] Serum DNA can define tumor-specific genetic and epigenetic markers in gliomas of various grades.
  • We evaluated whether cell-free circulating DNA can be used as a noninvasive approach for detection of genetic/epigenetic alterations in brain tumors during the course of the disease.
  • Paired tumor-serum samples from 70 patients with either high-grade astrocytomas (n = 41) or oligodendrogliomas of various grades were analyzed.
  • DNA was extracted from whole blood, serum, and paraffin-embedded tumor sections.
  • LOH and/or methylation that could identify DNA as tumor-specific was found in 80.5% of astrocytic tumors and in all oligodendrogliomas.
  • Statistically significant tumor-serum concordance was found for MGMT methylation in both astrocytic tumors (83%; P < .001) and oligodendroglial tumors (72%; P < .003) and for LOH of 10q (79%; P < .002) and 1p (62%; P < .03) in oligodendrogliomas.
  • We conclude that serum DNA in glial tumors is informative for both LOH and aberrant gene promoter methylation analysis during the course of the disease.
  • The sensitivity is moderate and specificity is high for both low- and high-grade tumors.
  • [MeSH-major] Biomarkers, Tumor / genetics. Brain Neoplasms / genetics. DNA / blood. Glioma / genetics
  • [MeSH-minor] Adult. Aged. DNA Methylation. DNA Modification Methylases / genetics. DNA Repair Enzymes / genetics. Epigenesis, Genetic. Female. Humans. Loss of Heterozygosity. Male. Microsatellite Repeats. Middle Aged. PTEN Phosphohydrolase / genetics. Polymerase Chain Reaction. Sensitivity and Specificity. Tumor Suppressor Proteins / genetics. Young Adult

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  • (PMID = 20150384.001).
  • [ISSN] 1523-5866
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Tumor Suppressor Proteins; 9007-49-2 / DNA; EC 2.1.1.- / DNA Modification Methylases; EC 2.1.1.63 / MGMT protein, human; EC 3.1.3.48 / PTEN protein, human; EC 3.1.3.67 / PTEN Phosphohydrolase; EC 6.5.1.- / DNA Repair Enzymes
  • [Other-IDs] NLM/ PMC2940579
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38. Stockhammer F, von Deimling A, Synowitz M, Blechschmidt C, van Landeghem FK: Expression of glucose transporter 1 is associated with loss of heterozygosity of chromosome 1p in oligodendroglial tumors WHO grade II. J Mol Histol; 2008 Oct;39(5):553-60
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  • [Title] Expression of glucose transporter 1 is associated with loss of heterozygosity of chromosome 1p in oligodendroglial tumors WHO grade II.
  • Objective Oligodendroglial tumors with a loss of heterozygosity of 1p (LOH1p) appear to have a better prognosis than oligodendrogliomas without LOH.
  • Previously, we reported glucose uptake in low-grade oligodendroglial tumors to be related to LOH 1p status.
  • Results Confocal microscopy depicted immunoreaction for GLUT-1, -3 and -12 in the cytoplasm of the tumor cells.
  • GLUT-1 expression in tumors with LOH 1p was significantly lower than in tumors with wild type 1p status (P = 0.0017).
  • Conclusion Expression of GLUT-1 is significantly reduced in low-grade oligodendroglial tumors harboring LOH 1p.
  • [MeSH-major] Brain Neoplasms / metabolism. Chromosomes, Human, Pair 1 / metabolism. Glioma / metabolism. Glucose Transporter Type 1 / biosynthesis. Loss of Heterozygosity
  • [MeSH-minor] Adult. Aged. Female. Gene Expression Regulation, Neoplastic / genetics. Glucose Transport Proteins, Facilitative / biosynthesis. Glucose Transport Proteins, Facilitative / genetics. Glucose Transporter Type 3 / biosynthesis. Glucose Transporter Type 3 / genetics. Humans. Male. Microscopy, Confocal / methods. Middle Aged. Tumor Suppressor Protein p53 / biosynthesis. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 18726700.001).
  • [ISSN] 1567-2379
  • [Journal-full-title] Journal of molecular histology
  • [ISO-abbreviation] J. Mol. Histol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Glucose Transport Proteins, Facilitative; 0 / Glucose Transporter Type 1; 0 / Glucose Transporter Type 3; 0 / SLC2A1 protein, human; 0 / SLC2A12 protein, human; 0 / SLC2A3 protein, human; 0 / TP53 protein, human; 0 / Tumor Suppressor Protein p53
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39. Shukla B, Agarwal S, Suri V, Pathak P, Sharma MC, Gupta D, Sharma BS, Suri A, Halder A, Sarkar C: Assessment of 1p/19q status by fluorescence in situ hybridization assay: A comparative study in oligodendroglial, mixed oligoastrocytic and astrocytic tumors. Neurol India; 2009 Sep-Oct;57(5):559-66
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  • [Title] Assessment of 1p/19q status by fluorescence in situ hybridization assay: A comparative study in oligodendroglial, mixed oligoastrocytic and astrocytic tumors.
  • Majority of oligodendrogliomas (85%; 17/20) and oligodendroglial areas in mixed oligoastrocytomas (77.7%; 7/9) showed a membranous lace-like immunopositivity with EGFR.
  • CONCLUSION: Loss of 1p/19q is strongly associated with oligodendroglial phenotype, while astrocytic tumors are more likely to show p53 over-expression. p53 expression and 1p/19q status appear to be mutually exclusive.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Chromosomes, Human, Pair 19. In Situ Hybridization, Fluorescence / methods. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Female. Glial Fibrillary Acidic Protein / metabolism. Humans. Male. Middle Aged. Receptor, Epidermal Growth Factor / metabolism. Retrospective Studies. Tumor Suppressor Protein p53 / metabolism. Young Adult

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  • (PMID = 19934553.001).
  • [ISSN] 0028-3886
  • [Journal-full-title] Neurology India
  • [ISO-abbreviation] Neurol India
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] India
  • [Chemical-registry-number] 0 / Glial Fibrillary Acidic Protein; 0 / Tumor Suppressor Protein p53; EC 2.7.10.1 / EGFR protein, human; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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40. Mut M, Güler-Tezel G, Lopes MB, Bilginer B, Ziyal I, Ozcan OE: Challenging diagnosis: oligodendroglioma versus extraventricular neurocytoma. Clin Neuropathol; 2005 Sep-Oct;24(5):225-9
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  • He presented with intratumoral hemorrhage and he underwent radical resection of tumor in 2003.
  • Histopathological examination of the recurrent tumor showed anaplastic progression with confusing immunohistochemical (IHC) results; the tumor was positive for NeuN and synaptophysin staining.
  • The question arisen was whether the recurrent tumor was an oligodendroglioma with neuronal differentiation or an extraventricular neurocytoma initially misdiagnosed as oligodendroglioma.
  • Current diagnostic methods of oligodendroglial tumors are discussed in context of differentiating oligodendrogliomas from other clear cell neoplasms of CNS, especially from extraventricular neurocytomas.
  • [MeSH-major] Brain Neoplasms / pathology. Neoplasm Recurrence, Local / pathology. Neurocytoma / pathology. Oligodendroglioma / pathology
  • [MeSH-minor] Adult. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Diagnosis, Differential. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Magnetic Resonance Imaging. Male. Nerve Tissue Proteins / biosynthesis. Synaptophysin / biosynthesis

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  • (PMID = 16167546.001).
  • [ISSN] 0722-5091
  • [Journal-full-title] Clinical neuropathology
  • [ISO-abbreviation] Clin. Neuropathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Nerve Tissue Proteins; 0 / Synaptophysin
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41. Yakut T, Gutenberg A, Bekar A, Egeli U, Gunawan B, Ercan I, Tolunay S, Doygun M, Schulten HJ: Correlation of chromosomal imbalances by comparative genomic hybridization and expression of EGFR, PTEN, p53, and MIB-1 in diffuse gliomas. Oncol Rep; 2007 May;17(5):1037-43
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  • The most frequent imbalances in oligodendroglial tumors including the oligoastrocytic case were, in decreasing order of frequency, +7q, -1p, and -4q and in astrocytomas +7q, -10q, +7p, -9p, -10p, +20q, and +20p.
  • In addition, p53 overexpression correlated positively with +7q and negatively with -1p in the oligodendroglial group whereas EGFR overexpression correlated positively with -1p in the oligodendroglial and positively with +7p and -10p in the astrocytic group.
  • Collectively, these results contribute to the increasing clinical relevance of assessing tumor biological markers in gliomas.
  • [MeSH-major] Chromosome Aberrations. Glioma / genetics. PTEN Phosphohydrolase / biosynthesis. Receptor, Epidermal Growth Factor / biosynthesis. Tumor Suppressor Protein p53 / biosynthesis. Ubiquitin-Protein Ligases / biosynthesis
  • [MeSH-minor] Adult. Aged. Child. Child, Preschool. Female. Humans. Immunohistochemistry. Infant. Male. Middle Aged. Nucleic Acid Hybridization / methods

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  • (PMID = 17390041.001).
  • [ISSN] 1021-335X
  • [Journal-full-title] Oncology reports
  • [ISO-abbreviation] Oncol. Rep.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Tumor Suppressor Protein p53; EC 2.7.10.1 / EGFR protein, human; EC 2.7.10.1 / Receptor, Epidermal Growth Factor; EC 3.1.3.48 / PTEN protein, human; EC 3.1.3.67 / PTEN Phosphohydrolase; EC 6.3.2.19 / MIB1 ligase, human; EC 6.3.2.19 / Ubiquitin-Protein Ligases
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42. Balss J, Meyer J, Mueller W, Korshunov A, Hartmann C, von Deimling A: Analysis of the IDH1 codon 132 mutation in brain tumors. Acta Neuropathol; 2008 Dec;116(6):597-602
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  • [Title] Analysis of the IDH1 codon 132 mutation in brain tumors.
  • We analyzed the genomic region spanning wild type R132 of IDH1 by direct sequencing in 685 brain tumors including 41 pilocytic astrocytomas, 12 subependymal giant cell astrocytomas, 7 pleomorphic xanthoastrocytomas, 93 diffuse astrocytomas, 120 adult glioblastomas, 14 pediatric glioblastomas, 105 oligodendrogliomas, 83 oligoastrocytomas, 31 ependymomas, 58 medulloblastomas, 9 supratentorial primitive neuroectodermal tumors, 17 schwannomas, 72 meningiomas and 23 pituitary adenomas.
  • The very high frequency of IDH1 mutations in WHO grade II astrocytic and oligodendroglial gliomas suggests a role in early tumor development.
  • [MeSH-major] Brain Neoplasms / genetics. Isocitrate Dehydrogenase / genetics. Mutation

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  • (PMID = 18985363.001).
  • [ISSN] 1432-0533
  • [Journal-full-title] Acta neuropathologica
  • [ISO-abbreviation] Acta Neuropathol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] EC 1.1.1.41 / Isocitrate Dehydrogenase
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43. Khayal IS, Nelson SJ: Characterization of low-grade gliomas using RGB color maps derived from ADC histograms. J Magn Reson Imaging; 2009 Jul;30(1):209-13
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  • RESULTS: Color maps of oligodendroglial tumor regions were generally visualized in pink, while color maps of astrocytic tumor regions showed various shades of blue.
  • CONCLUSION: This technique allows for the visualization of biologically different regions within the whole tumor mass, which may aid in directing image-guided biopsies.
  • This can be used to ensure that the biopsy is directed to regions that can more accurately define the dominant tumor characteristics.
  • [MeSH-major] Brain Neoplasms / pathology. Glioma / pathology. Magnetic Resonance Imaging / methods
  • [MeSH-minor] Adolescent. Adult. Brain Mapping / methods. Contrast Media. Diffusion Magnetic Resonance Imaging / methods. Echo-Planar Imaging / methods. Female. Gadolinium. Humans. Image Enhancement / methods. Image Processing, Computer-Assisted / methods. Imaging, Three-Dimensional / methods. Male. Middle Aged. Young Adult

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  • [Copyright] (c) 2009 Wiley-Liss, Inc.
  • (PMID = 19557741.001).
  • [ISSN] 1053-1807
  • [Journal-full-title] Journal of magnetic resonance imaging : JMRI
  • [ISO-abbreviation] J Magn Reson Imaging
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Contrast Media; AU0V1LM3JT / Gadolinium
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44. Idbaih A, Boisselier B, Marie Y, El Hallani S, Sanson M, Crinière E, Rodero M, Carpentier C, Paris S, Laigle-Donadey F, Ducray F, Hoang-Xuan K, Delattre JY: TP53 codon 72 polymorphism, p53 expression, and 1p/19q status in oligodendroglial tumors. Cancer Genet Cytogenet; 2007 Sep;177(2):103-7
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  • [Title] TP53 codon 72 polymorphism, p53 expression, and 1p/19q status in oligodendroglial tumors.
  • Such results were also reported in brain tumors, notably in astrocytomas.
  • This SNP has never been precisely investigated in oligodendroglial tumors.
  • We retrospectively analyzed blood samples of 275 oligodendroglial tumor patients for the TP53 codon 72 polymorphism and compared them with a series of 144 healthy controls.
  • This suggests no association between oligodendroglial tumors and the SNP in codon 72 of TP53.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Codon. Oligodendroglioma / genetics. Polymorphism, Genetic / genetics. Tumor Suppressor Protein p53 / genetics
  • [MeSH-minor] Adult. Aged. Astrocytoma / genetics. Astrocytoma / metabolism. Case-Control Studies. DNA, Neoplasm / blood. DNA, Neoplasm / genetics. DNA, Neoplasm / metabolism. Female. Genotype. Glioma / genetics. Glioma / metabolism. Humans. Immunoenzyme Techniques. Male. Microsatellite Repeats. Middle Aged. Prognosis. Survival Rate

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  • (PMID = 17854663.001).
  • [ISSN] 0165-4608
  • [Journal-full-title] Cancer genetics and cytogenetics
  • [ISO-abbreviation] Cancer Genet. Cytogenet.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Codon; 0 / DNA, Neoplasm; 0 / Tumor Suppressor Protein p53
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45. Chen L, Xu QZ, Piao YS, Zhang GJ, Yu T, Yang XP, Yang H, Lu DH: [Dysembryoplastic neuroepithelial tumor: a clinicopathologic and immunohistochemical study]. Zhonghua Bing Li Xue Za Zhi; 2007 Aug;36(8):524-8
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  • [Title] [Dysembryoplastic neuroepithelial tumor: a clinicopathologic and immunohistochemical study].
  • OBJECTIVE: To study the clinicopathologic features, immunophenotype and histogenesis of dysembryoplastic neuroepithelial tumor (DNT).
  • Histologically, the tumor consisted of a heterogeneous admixture of neuronal and glial cells (including 1 simple form case, 8 complex form cases and 5 non-specific form cases).
  • Immunohistochemically, the oligodendroglial-like cells expressed Olig2.
  • No tumor recurrence was detected.
  • [MeSH-major] Basic Helix-Loop-Helix Transcription Factors / metabolism. Brain Neoplasms / pathology. Malformations of Cortical Development / pathology. Neoplasms, Neuroepithelial / pathology. Nerve Tissue Proteins / metabolism
  • [MeSH-minor] Adolescent. Adult. Anticonvulsants / therapeutic use. Child. Child, Preschool. Epilepsy / drug therapy. Epilepsy / etiology. Female. Follow-Up Studies. Humans. Infant. Intermediate Filament Proteins / metabolism. Male. Microtubule-Associated Proteins / metabolism. Nestin. Oligodendroglia / pathology. Retrospective Studies. Young Adult

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  • (PMID = 17980099.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Anticonvulsants; 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / Intermediate Filament Proteins; 0 / MAP2 protein, human; 0 / Microtubule-Associated Proteins; 0 / NES protein, human; 0 / Nerve Tissue Proteins; 0 / Nestin; 0 / OLIG2 protein, human
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46. Haapasalo J, Nordfors K, Järvelä S, Bragge H, Rantala I, Parkkila AK, Haapasalo H, Parkkila S: Carbonic anhydrase II in the endothelium of glial tumors: a potential target for therapy. Neuro Oncol; 2007 Jul;9(3):308-13
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  • [Title] Carbonic anhydrase II in the endothelium of glial tumors: a potential target for therapy.
  • Carbonic anhydrase isozyme II (CA II) is a cytosolic enzyme that is highly expressed in most organs, including the brain, where it is mainly located in the oligodendrocytes.
  • These results prompted us to investigate endothelial CA II expression in two types of brain cancer: oligodendrogliomas and astrocytomas.
  • A series of 255 astrocytoma and 71 oligodendroglial tumor specimens was immunostained for CA II.
  • CA II showed weak or no expression in low-grade tumors, while grade 3 mixed oligoastrocytoma and glioblastoma multiforme were the most positively stained tumor types.
  • About 17% of patients with CA II-negative tumors (weak or no endothelial signal) were still alive at the end of the follow-up period of five years.
  • The presence of CA II in the tumor endothelium suggests that it may play an important functional role in tumor metabolism.
  • From a clinical perspective, the results also open new avenues for selecting tumor types for dendritic cell therapy trials.
  • [MeSH-major] Brain Neoplasms / enzymology. Carbonic Anhydrase II / biosynthesis. Endothelium, Vascular / enzymology. Glioma / enzymology. Neovascularization, Pathologic / enzymology
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Child. Child, Preschool. Humans. Immunohistochemistry. In Situ Hybridization. Infant. Middle Aged

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  • (PMID = 17435181.001).
  • [ISSN] 1522-8517
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] EC 4.2.1.- / Carbonic Anhydrase II
  • [Other-IDs] NLM/ PMC1907412
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47. Hatakeyama T, Kawai N, Nishiyama Y, Yamamoto Y, Sasakawa Y, Ichikawa T, Tamiya T: 11C-methionine (MET) and 18F-fluorothymidine (FLT) PET in patients with newly diagnosed glioma. Eur J Nucl Med Mol Imaging; 2008 Nov;35(11):2009-17
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  • PURPOSE: The purpose of this prospective study was to clarify the individual and combined role of L-methyl-(11)C-methionine-positron emission tomography (MET-PET) and 3'-deoxy-3'-[(18)F]fluorothymidine (FLT)-PET in tumor detection, noninvasive grading, and assessment of the cellular proliferation rate in newly diagnosed histologically verified gliomas of different grades.
  • MET and FLT uptakes were assessed by standardized uptake value of the tumor showing the maximum uptake (SUV(max)), and the ratio to uptake in the normal brain parenchyma (T/N ratio).
  • All tumors were graded by the WHO grading system using surgical specimens, and the proliferation activity of the tumors were determined by measuring the Ki-67 index obtained by immunohistochemical staining.
  • RESULTS: On semiquantitative analysis, MET exhibited a slightly higher sensitivity (87.8%) in tumor detection than FLT (83.3%), and both tracers were 100% sensitive for malignant gliomas.
  • Although the difference of MET SUV(max) and T/N ratio between grades II and IV gliomas was statistically significant (P < 0.001), there was a significant overlap of MET uptake in the tumors.
  • Low-grade gliomas with oligodendroglial components had relatively high MET uptake.
  • Total FLT uptake in the tumor had a higher correlation (r = 0.89, P < 0.001) with Ki-67 proliferation index than MET uptake (r = 0.49, P < 0.01).
  • CONCLUSIONS: PET studies using MET and FLT are useful for tumor detection in newly diagnosed gliomas.
  • However, there is no complimentary information in tumor detection with simultaneous measurements of MET- and FLT-PET in low grade gliomas.
  • FLT-PET seems to be superior than MET-PET in noninvasive tumor grading and assessment of proliferation activity in gliomas of different grades.
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Carbon Radioisotopes / chemistry. Cell Proliferation. Child. Child, Preschool. Female. Humans. Immunohistochemistry. Male. Middle Aged. Positron-Emission Tomography

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  • (PMID = 18542957.001).
  • [ISSN] 1619-7089
  • [Journal-full-title] European journal of nuclear medicine and molecular imaging
  • [ISO-abbreviation] Eur. J. Nucl. Med. Mol. Imaging
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Carbon Radioisotopes; 0 / Dideoxynucleosides; AE28F7PNPL / Methionine; PG53R0DWDQ / alovudine
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48. Jeon YK, Park K, Park CK, Paek SH, Jung HW, Park SH: Chromosome 1p and 19q status and p53 and p16 expression patterns as prognostic indicators of oligodendroglial tumors: a clinicopathological study using fluorescence in situ hybridization. Neuropathology; 2007 Feb;27(1):10-20
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  • [Title] Chromosome 1p and 19q status and p53 and p16 expression patterns as prognostic indicators of oligodendroglial tumors: a clinicopathological study using fluorescence in situ hybridization.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Genes, p16 / physiology. Genes, p53 / physiology. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Aged. Female. Gene Expression. Gene Expression Profiling. Glial Fibrillary Acidic Protein / biosynthesis. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Male. Middle Aged. Mutation. Polymerase Chain Reaction. Prognosis. Survival Analysis. Tissue Array Analysis. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 17319279.001).
  • [ISSN] 0919-6544
  • [Journal-full-title] Neuropathology : official journal of the Japanese Society of Neuropathology
  • [ISO-abbreviation] Neuropathology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Australia
  • [Chemical-registry-number] 0 / Glial Fibrillary Acidic Protein; 0 / Tumor Suppressor Protein p53
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49. Sherman JH, Prevedello DM, Shah L, Raghavan P, Pouratian N, Starke RM, Lopes MB, Shaffrey ME, Schiff D: MR imaging characteristics of oligodendroglial tumors with assessment of 1p/19q deletion status. Acta Neurochir (Wien); 2010 Nov;152(11):1827-34
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  • [Title] MR imaging characteristics of oligodendroglial tumors with assessment of 1p/19q deletion status.
  • Effective treatment of patients with brain tumors requires accurate diagnostic techniques.
  • MR imaging can be used to help differentiate between low- and high-grade tumors.
  • METHODS: Using the clinical database at the University of Virginia Neuro-Oncology Center, we identified adult patients with grade II and III oligodendroglial tumors who underwent treatment from 2002 to 2007.
  • Age at diagnosis, gender, tumor grade, chromosomal deletion status, duration of follow-up, and MR imaging characteristics were analyzed; the latter was read by a blinded neuroradiologist.
  • The greatest cross-sectional area (mean) of the tumor measured 23.4 cm(2) for patients with the co-deletion and 31.7 cm(2) for patients with intact alleles (p = 0.008).
  • In addition, inner table thinning was noted directly adjacent to seven tumors with intact 1p and 19q alleles and in no tumors with the 1p/19q co-deletion (p = 0.020).
  • Amongst patients with pure oligodendrogliomas, those with 1p/19q co-deletion had tumors more often confined to a single lobe as compared with those patients without the co-deletion (p = 0.023).
  • Finally, tumors with intact alleles were more often found in the temporal lobe (45.0%) as compared with co-deleted tumors (22.7%) (p = 0.011).
  • While imaging will never replace definitive tissue diagnosis, imaging characteristics such as tumor size, location, and overlying skull thinning can assist clinicians in assessing patients with oligodendroglial tumors prior to surgical or medical intervention.
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / pathology. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Gene Deletion. Genetic Predisposition to Disease / genetics. Oligodendroglioma / genetics. Oligodendroglioma / pathology
  • [MeSH-minor] Adult. DNA Mutational Analysis / methods. Disease Progression. Female. Genetic Testing / methods. Humans. Male


50. Guillaudeau A, Durand K, Pommepuy I, Robert S, Chaunavel A, Lacorre S, DeArmas R, Bourtoumieux S, El Demery M, Moreau JJ, Labrousse F: Determination of EGFR status in gliomas: usefulness of immunohistochemistry and fluorescent in situ hybridization. Appl Immunohistochem Mol Morphol; 2009 May;17(3):220-6
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  • Fluorescent in situ hybridization (FISH) and immunohistochemistry (IHC) techniques were used to assess EGFR gene amplification and protein abundance in a series of 35 gliomas, including World Health Organization (WHO) grade I, II, and III astrocytomas (AI, AII, AIII), grade II and III tumors with oligodendroglial component (OII, OIII) and grade IV glioblastomas (GBs).
  • EGFR gene amplification was found in one-third of the tumors studied.
  • It was frequent in GB and OIII but was never found in AI, AII, AIII, and OII tumors.
  • IHC and FISH provided similar findings for grade of tumor, despite the fact that, in contrast to the FISH gene amplification, EGFR protein was overexpressed in AIII and in GB.
  • EGFR gene amplification was never observed in tumors not containing EGFR protein: therefore FISH is unnecessary when IHC shows no EGFR protein expression.
  • EGFR gene amplification seems to be restricted to high-grade tumors, WHO grade IV astrocytomas, and grade III oligodendroglial tumors.

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  • (PMID = 19391220.001).
  • [ISSN] 1533-4058
  • [Journal-full-title] Applied immunohistochemistry & molecular morphology : AIMM
  • [ISO-abbreviation] Appl. Immunohistochem. Mol. Morphol.
  • [Language] ENG
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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51. Ren XH, Cui XL, Lin S, Wang ZC: [The correlation between combining 1p/19q LOH and pathology in gliomas]. Zhonghua Yi Xue Za Zhi; 2010 Jul 6;90(25):1781-4
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  • METHODS: Tumor samples from 127 glioma patients were collected.
  • RESULTS: The frequencies of combining 1p/19q LOH in astrocytic, oligoastrocytic and oligodendroglial tumors were 19.30%, 50.00% and 80.77% respectively.
  • The frequencies of combining 1p/19q LOH in oligoastrocytic and oligodendroglial tumors were higher than those in astrocytic tumors (P < 0.01) and the frequencies of combining 1p/19q LOH in oligodendroglial tumors was higher than those in oligoastrocytic tumors (P < 0.05).
  • The frequencies of 1p/19q LOH in astrocytic, oligoastrocytic and oligodendroglial tumors were 12.28%, 11.36 and 0 respectively.
  • It is significantly correlated with oligodendroglial component.
  • Combining 1p/19q LOH may be valuable in the diagnosis, treatment and prognostic prediction for glioma with oligodendroglial component.
  • [MeSH-minor] Adolescent. Adult. Aged. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Female. Humans. Male. Middle Aged. Oligodendroglia / pathology. Oligodendroglioma / genetics. Oligodendroglioma / pathology. Young Adult

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  • (PMID = 20979900.001).
  • [ISSN] 0376-2491
  • [Journal-full-title] Zhonghua yi xue za zhi
  • [ISO-abbreviation] Zhonghua Yi Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] China
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52. Merrell R, Nabors LB, Perry A, Palmer CA: 1p/19q chromosome deletions in metastatic oligodendroglioma. J Neurooncol; 2006 Nov;80(2):203-7
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  • Extracranial metastasis of primary brain tumors is a rare phenomenon.
  • Although the bone metastasis was non-informative, the primary intracranial tumor revealed codeletions of the 1p and 19q chromosomal arms, commonly recognized as the genetically favorable profile of oligodendrogliomas.
  • Along with the reported literature, our data suggest that despite their generally favorable behavioral profiles, oligodendroglial tumors with 1p/19q deletions may be more prone to metastasis as they progress.
  • [MeSH-major] Bone Marrow Neoplasms / genetics. Bone Marrow Neoplasms / secondary. Bone Neoplasms / genetics. Bone Neoplasms / secondary. Brain Neoplasms / pathology. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Oligodendroglioma / genetics. Oligodendroglioma / secondary. Spinal Neoplasms / genetics. Spinal Neoplasms / secondary
  • [MeSH-minor] Adult. Aged. Fatal Outcome. Female. Humans. In Situ Hybridization. Magnetic Resonance Imaging. Male. Tomography, X-Ray Computed

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  • (PMID = 16710746.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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53. Simon M, Neuloh G, von Lehe M, Meyer B, Schramm J: Insular gliomas: the case for surgical management. J Neurosurg; 2009 Apr;110(4):685-95
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  • In this report the authors summarize their experience with microsurgical resection of insular tumors.
  • RESULTS: A > 90% resection was achieved in 42%, and 70-90% tumor removal was accomplished in 51% of cases.
  • For example, in neurologically intact patients < or = 40 years of age with WHO Grade I-III tumors, good outcomes (Karnofsky Performance Scale Score 80-100) were seen in 91% of cases.
  • The median survival for patients with anaplastic astrocytomas (WHO Grade III) was 5 years, and the 5-year survival rate for those with anaplastic oligodendroglial tumors was 80%.
  • Independent predictors of survival included younger age, favorable histological features (WHO Grade I and oligodendroglial tumors), Yaşargil Type 5A/B tumors with frontal extensions, and more extensive resections.
  • CONCLUSIONS: Insular tumor surgery carries substantial complication rates.
  • In view of the oncological benefits of resective surgery, our data would therefore argue for microsurgery as the primary treatment for most patients with a presumed WHO Grade I-III tumor.
  • [MeSH-major] Brain Neoplasms / surgery. Cerebral Cortex. Glioma / surgery
  • [MeSH-minor] Adolescent. Adult. Age Factors. Aged. Astrocytoma / surgery. Child. Female. Humans. Male. Middle Aged. Postoperative Complications. Survival Rate. Treatment Outcome

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  • (PMID = 19099379.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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54. Tews B, Felsberg J, Hartmann C, Kunitz A, Hahn M, Toedt G, Neben K, Hummerich L, von Deimling A, Reifenberger G, Lichter P: Identification of novel oligodendroglioma-associated candidate tumor suppressor genes in 1p36 and 19q13 using microarray-based expression profiling. Int J Cancer; 2006 Aug 15;119(4):792-800
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  • [Title] Identification of novel oligodendroglioma-associated candidate tumor suppressor genes in 1p36 and 19q13 using microarray-based expression profiling.
  • Loss of heterozygosity (LOH) on chromosomal arms 1p and 19q is the most common genetic alteration in oligodendroglial tumors and associated with response to radio- and chemotherapy as well as favorable prognosis.
  • Using microsatellite analysis, we previously identified the chromosomal regions 1p36.22-p36.31 and 19q13.3, as candidate tumor suppressor gene regions being commonly deleted in these tumors.
  • To identify genes within these regions that are downregulated in oligodendroglial tumors with LOH 1p/19q, we performed cDNA microarray-based RNA expression profiling of 35 gliomas with known allelic status on 1p and 19q, including 7 oligodendrogliomas and 8 diffuse astrocytomas of World Health Organization (WHO) grade II, as well as 14 anaplastic oligodendrogliomas and 6 anaplastic oligoastrocytomas of WHO grade III.
  • Taken together, our study provides a set of interesting novel candidate genes that may play important roles in the pathogenesis of oligodendroglial tumors.
  • [MeSH-major] Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Gene Expression Profiling. Gene Expression Regulation, Neoplastic. Oligodendroglioma / genetics. Oligonucleotide Array Sequence Analysis. Tumor Suppressor Proteins / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Child. DNA, Complementary / genetics. Down-Regulation. Female. Humans. Male. Middle Aged. Transcription, Genetic / genetics. Up-Regulation

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  • [Copyright] Copyright 2006 Wiley-Liss, Inc.
  • (PMID = 16550607.001).
  • [ISSN] 0020-7136
  • [Journal-full-title] International journal of cancer
  • [ISO-abbreviation] Int. J. Cancer
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DNA, Complementary; 0 / Tumor Suppressor Proteins
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55. Volavsek M, Lamovec J, Popović M: Extraneural metastases of anaplastic oligodendroglial tumors. Pathol Res Pract; 2009;205(7):502-7
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  • [Title] Extraneural metastases of anaplastic oligodendroglial tumors.
  • Fine needle aspiration biopsy (FNAB) of the cervical lymph node prior to neck dissection suggested a possible metastatic primitive neuroepithelial tumor.
  • It is important to bear this in mind, particularly in cases when the history of primary brain tumor is unavailable.
  • [MeSH-major] Astrocytoma / secondary. Brain Neoplasms / pathology. Femoral Neoplasms / secondary. Neoplasm Recurrence, Local. Oligodendroglia / pathology. Oligodendroglioma / secondary. Sacrum / pathology. Spinal Neoplasms / secondary
  • [MeSH-minor] Adult. Antineoplastic Combined Chemotherapy Protocols. Chemotherapy, Adjuvant. Cranial Irradiation. Craniotomy. Fatal Outcome. Female. Humans. Lymphatic Metastasis. Middle Aged. Radiotherapy, Adjuvant. Treatment Outcome

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  • (PMID = 19410385.001).
  • [ISSN] 1618-0631
  • [Journal-full-title] Pathology, research and practice
  • [ISO-abbreviation] Pathol. Res. Pract.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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56. Seol HJ, Kim JE, Wang KC, Kim SK, Seo JS, Park SH, Jung HW: The pattern of gene expression and possible relation of steroidogenic genes in oligodendroglial tumors. Int J Oncol; 2009 Jan;34(1):181-90
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  • [Title] The pattern of gene expression and possible relation of steroidogenic genes in oligodendroglial tumors.
  • StAR is expressed at a very low level in the white matter of the normal human brain, but is highly expressed in several brain neoplasms including oligodendroglioma (OD).
  • [MeSH-major] Biomarkers, Tumor / metabolism. Brain Neoplasms / genetics. Gene Expression Profiling. Oligodendroglioma / genetics. Steroids / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Brain / metabolism. Brain / pathology. Child. Child, Preschool. Fluorescent Antibody Technique. Gene Expression Regulation, Neoplastic. Humans. Middle Aged. Oligonucleotide Array Sequence Analysis. Phosphoproteins / genetics. Phosphoproteins / metabolism. RNA, Neoplasm. Transcription, Genetic. Young Adult

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  • (PMID = 19082489.001).
  • [ISSN] 1019-6439
  • [Journal-full-title] International journal of oncology
  • [ISO-abbreviation] Int. J. Oncol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Phosphoproteins; 0 / RNA, Neoplasm; 0 / Steroids; 0 / steroidogenic acute regulatory protein
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57. Takeuchi H, Kubota T, Kitai R, Matsuda K, Hashimoto N, Sato K: Chromosome 1p and 19q deletions in malignant glioneuronal tumors with oligodendroglioma-like component. J Neurooncol; 2009 Jan;91(1):33-8
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  • [Title] Chromosome 1p and 19q deletions in malignant glioneuronal tumors with oligodendroglioma-like component.
  • Malignant glioneuronal tumors (MGNT) are suggested to be a new entity of glioma defined morphologically as any malignant glioma showing immunohistoichemical evidence of neuronal differentiation.
  • We encountered seven cases of MGNT with oligodendroglioma-like component and investigated alternations of chromosome 1p and 19q in these tumors.
  • Immunohistochemical study of these tumors was performed using neuronal markers (synaptophysin, neurofilament, beta-tubulin, chromogranin A and NeuN), astrocytic marker (GFAP) and Ki-67.
  • We undertook a molecular cytogenetic study of tumor specimens obtained from seven patients using fluorescence in situ hybridization (FISH) with DNA probes mapping to chromosome 1p36, 1q25, 19p13 and 19q13.
  • Histologically, these tumors resembled anaplastic oligodendroglioma.
  • Immunohistochemically, tumor cells were immunoreactive for synaptophysin (7/7), neurofilament (6/7), beta-tubulin (5/7), chromogranin A (4/7), NeuN (2/7) and GFAP (7/7).
  • 1p and 19q deletions were present in MGNT, especially those with oligodendroglial components.
  • We suggest that the oligodendroglial-like feature was associated with not only 1p or 19q loss but also differentiation along neuronal cell lines as a factor of favorable prognosis in glial tumors.
  • [MeSH-major] Brain Neoplasms / metabolism. Chromosome Deletion. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Oligodendroglioma / metabolism
  • [MeSH-minor] Adult. Aged. Female. Humans. Ki-67 Antigen / metabolism. Male. Middle Aged. Nerve Tissue Proteins / metabolism. Oligodendroglia / metabolism. Oligodendroglia / pathology

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  • (PMID = 18781279.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Ki-67 Antigen; 0 / Nerve Tissue Proteins
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58. Yao Y, Tang X, Li S, Mao Y, Zhou L: Brain tumor stem cells: view from cell proliferation. Surg Neurol; 2009 Mar;71(3):274-9
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  • [Title] Brain tumor stem cells: view from cell proliferation.
  • A small population of TSCs, which form neurospheres and possess the capacity for self-renewal, has been recently identified in adult and pediatric brain tumors.
  • They differentiate into phenotypically diverse populations, including neuronal, astrocytic, and oligodendroglial cells in vitro and recapitulate original tumors in vivo.
  • The understanding of brain TSCs has been greatly advanced by the knowledge of cell proliferation, which contributes to initiate and sustain the malignant phenotype.
  • In this article, the authors summarized the evidence of the presence of TSCs in human brain tumors and emphasized the significance of the proliferative status of TSCs.
  • Finally, the preliminary evidence that TSCs in malignant brain tumors have more proliferative capacity than stem/progenitor cells in benign brain tumors was discussed.
  • [MeSH-major] Adult Stem Cells / pathology. Brain Neoplasms / pathology. Neoplastic Stem Cells / pathology

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  • (PMID = 19249579.001).
  • [ISSN] 0090-3019
  • [Journal-full-title] Surgical neurology
  • [ISO-abbreviation] Surg Neurol
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] United States
  • [Number-of-references] 40
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59. Kim SH, Kim H, Kim TS: Clinical, histological, and immunohistochemical features predicting 1p/19q loss of heterozygosity in oligodendroglial tumors. Acta Neuropathol; 2005 Jul;110(1):27-38
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  • [Title] Clinical, histological, and immunohistochemical features predicting 1p/19q loss of heterozygosity in oligodendroglial tumors.
  • To identify a better diagnostic criteria for oligodendroglial tumors, we investigated the clinical, histological, and immunohistochemical features that would be able to predict a 1p/19q loss of heterozygosity (LOH) in these tumors.
  • We performed a PCR-based LOH test with the 1p and 19q microsatellite markers by microdissecting tumor in 56 samples (44 oligodendrogliomas and 12 mixed oligoastrocytomas) of paraffin-embedded tissue.
  • Patients with oligodendroglial tumors with 1p/19q LOH had a statistically significant better prognosis for overall survival.
  • Comparative analysis of several features indicated that the 1p/19q LOH tumors were associated with two histological features, "tumor cellularity" and "perinuclear halo," and low O(6)-methylguanine-DNA-methyltransferase (MGMT) expression and high cytoplasmic glutathione S-transferase pi (GST-pi) expression.
  • Using the new features, we could predict the 1p/19q status of oligodendroglial tumors with greater than 90% accuracy.
  • Therefore, applying these features in clinical practice, would be helpful in clarifying oligodendroglial tumor diagnosis.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / diagnosis. Brain Neoplasms / genetics. Glioma / diagnosis. Glioma / genetics
  • [MeSH-minor] Adolescent. Adult. Age Factors. Aged. Child. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Female. Humans. Immunohistochemistry. Loss of Heterozygosity. Male. Middle Aged. Polymerase Chain Reaction. Sensitivity and Specificity. Survival Analysis


60. Basto D, Trovisco V, Lopes JM, Martins A, Pardal F, Soares P, Reis RM: Mutation analysis of B-RAF gene in human gliomas. Acta Neuropathol; 2005 Feb;109(2):207-10
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  • Up-regulation of this pathway due to RAS mutations is found in approximately 30% of human tumors.
  • Gliomas are the most frequent primary central nervous system tumors and the molecular mechanisms that underlie the development and progression of these tumors are far from being completely understood.
  • The purpose of this study was to clarify the incidence of B-RAF mutations and their possible relation with tumor progression in a series of 82 human gliomas, including 49 astrocytic and 33 oligodendroglial tumors.
  • [MeSH-minor] Adult. Aged. Blotting, Northern / methods. DNA Mutational Analysis / methods. Exons. Female. Humans. Male. Middle Aged

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  • (PMID = 15791479.001).
  • [ISSN] 0001-6322
  • [Journal-full-title] Acta neuropathologica
  • [ISO-abbreviation] Acta Neuropathol.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] EC 2.7.11.1 / BRAF protein, human; EC 2.7.11.1 / Proto-Oncogene Proteins B-raf
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61. Mikami S, Hirose Y, Yoshida K, Kawase T, Ohnishi A, Nagashima K, Mukai M, Okada Y, Ikeda E: Predominant expression of OLIG2 over ID2 in oligodendroglial tumors. Virchows Arch; 2007 May;450(5):575-84
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  • [Title] Predominant expression of OLIG2 over ID2 in oligodendroglial tumors.
  • This study aims to examine if the analysis of OLIG2 and ID2 expression in glioma tissues helps the differential diagnosis of chemosensitive oligodendroglial tumors from astrocytic tumors.
  • Expression levels of OLIG2 and ID2 in 11 oligodendroglial and 27 astrocytic tumors were analyzed by reverse transcription-polymerase chain reaction (RT-PCR), real-time quantitative PCR, and immunohistochemistry.
  • The mean expression level of OLIG2 was higher in oligodendroglial tumors than astrocytic tumors, but some astrocytic tumors showed high OLIG2 expression, indicating that OLIG2 cannot be an independent marker of oligodendroglial tumors.
  • No significant difference was observed between ID2 expression in oligodendroglial tumors and astrocytic tumors.
  • It was notable that OLIG2 expression was predominant over ID2 expression in oligodendroglial tumors, while ID2 expression was predominant over OLIG2 expression in astrocytic tumors.
  • These results indicate that the immunohistochemical study on the relative expression level of OLIG2 to ID2 can be a useful screening for oligodendroglial tumors.
  • [MeSH-major] Basic Helix-Loop-Helix Transcription Factors / metabolism. Brain Neoplasms / metabolism. Inhibitor of Differentiation Protein 2 / metabolism. Nerve Tissue Proteins / metabolism. Oligodendroglia / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Astrocytoma / metabolism. Astrocytoma / secondary. Astrocytoma / surgery. Biomarkers, Tumor / metabolism. Child. Chromosome Deletion. Chromosomes, Human, Pair 1. Female. Fluorescent Antibody Technique, Direct. Gene Expression. Humans. Immunoenzyme Techniques. Male. Middle Aged. Neoplasm Staging. Nucleic Acid Hybridization. Oligodendroglioma / metabolism. Oligodendroglioma / secondary. Oligodendroglioma / surgery. RNA, Messenger / metabolism

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  • (PMID = 17431671.001).
  • [ISSN] 0945-6317
  • [Journal-full-title] Virchows Archiv : an international journal of pathology
  • [ISO-abbreviation] Virchows Arch.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / Biomarkers, Tumor; 0 / ID2 protein, human; 0 / Inhibitor of Differentiation Protein 2; 0 / Nerve Tissue Proteins; 0 / OLIG2 protein, human; 0 / RNA, Messenger
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62. Holmlund C, Haapasalo H, Yi W, Raheem O, Brännström T, Bragge H, Henriksson R, Hedman H: Cytoplasmic LRIG2 expression is associated with poor oligodendroglioma patient survival. Neuropathology; 2009 Jun;29(3):242-7
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  • Of these, LRIG1 negatively regulates growth factor signaling and is implicated as a tumor suppressor in certain malignancies.
  • In astrocytic tumors, the subcellular distribution of LRIG proteins is associated with specific clinicopathological features and patient survival.
  • Here we used immunohistochemistry to analyze the expression of the LRIG proteins in 63 oligodendroglial tumors, and evaluated possible associations between LRIG protein expression and clinicopathological parameters.
  • [MeSH-major] Brain Neoplasms / diagnosis. Brain Neoplasms / metabolism. Cytoplasm / metabolism. Membrane Glycoproteins / metabolism. Oligodendroglioma / diagnosis. Oligodendroglioma / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Cell Nucleus / metabolism. Female. Humans. Kaplan-Meier Estimate. Male. Membrane Proteins / metabolism. Middle Aged. Neoplasm Staging. Prognosis. Young Adult

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  • (PMID = 18992012.001).
  • [ISSN] 1440-1789
  • [Journal-full-title] Neuropathology : official journal of the Japanese Society of Neuropathology
  • [ISO-abbreviation] Neuropathology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Australia
  • [Chemical-registry-number] 0 / LRIG1 protein, human; 0 / LRIG2 protein, human; 0 / LRIG3 protein, human; 0 / Membrane Glycoproteins; 0 / Membrane Proteins
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63. Kanamori M, Kumabe T, Sonoda Y, Nishino Y, Watanabe M, Tominaga T: Predictive factors for overall and progression-free survival, and dissemination in oligodendroglial tumors. J Neurooncol; 2009 Jun;93(2):219-28
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  • [Title] Predictive factors for overall and progression-free survival, and dissemination in oligodendroglial tumors.
  • The pattern of recurrence and predictive factors for tumor progression, dissemination and survival in oligodendroglial tumors were investigated.
  • 56 consecutive patients with oligodendroglial tumors were retrospectively analyzed to determine the predictive significance of various factors, including World Health Organization grade, loss of chromosomes 1p and 19q, and immunohistochemical features of TP53, O(6)-methylguanine-deoxyribonucleic-acid-methyltransferase, CD44H, nestin, and Ki-67.
  • [MeSH-minor] Adolescent. Adult. Aged. Child. Chromosome Deletion. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Female. Humans. In Situ Hybridization, Fluorescence. Intermediate Filament Proteins / genetics. Male. Middle Aged. Nerve Tissue Proteins / genetics. Nestin. Predictive Value of Tests. Retrospective Studies. Survival Rate. Treatment Outcome. Tumor Suppressor Protein p53 / genetics. Tumor Suppressor Protein p53 / metabolism. Young Adult

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  • (PMID = 19099201.001).
  • [ISSN] 1573-7373
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Intermediate Filament Proteins; 0 / NES protein, human; 0 / Nerve Tissue Proteins; 0 / Nestin; 0 / Tumor Suppressor Protein p53
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64. Chen Z, Ma L, Lou X, Zhou Z: Diagnostic value of minimum apparent diffusion coefficient values in prediction of neuroepithelial tumor grading. J Magn Reson Imaging; 2010 Jun;31(6):1331-8
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  • [Title] Diagnostic value of minimum apparent diffusion coefficient values in prediction of neuroepithelial tumor grading.
  • PURPOSE: To retrospectively evaluate the diagnostic accuracy of diffusion weighted image (DWI) in the prediction of neuroepithelial tumors grading, and to appraise the apparent diffusion coefficient (ADC) value of neuroepithelial tumors with histologic findings as a reference standard.
  • MATERIALS AND METHODS: ADC values in 110 patients with pathologically proved neuroepithelial tumors, including 77 astrocytic tumors, 16 oligodendroglial tumors, 11 oligoastrocytic tumors, and 6 ependymal tumors, were investigated retrospectively.
  • The minimum ADC (MinADC) value of tumors was measured postoperatively on ADC maps, avoiding cystic, necrotic, or hemorrhagic components.
  • The area under the ROC curve (AUC) was 0.809, and the cutoff MinADC value of 0.900 x 10(-3) mm(2)/s for the differentiation between high and low grade neuroepithelial tumors provided the best combination of sensitivity (85.4%) and specificity (71.0%).
  • CONCLUSION: MinADC value may be a simple and effective optional tool for the prediction of neuroepithelial tumor grading.
  • [MeSH-minor] Adolescent. Adult. Aged. Child. Child, Preschool. Diffusion. Female. Humans. Ki-67 Antigen / biosynthesis. Male. Middle Aged. ROC Curve. Reproducibility of Results. Retrospective Studies. Sensitivity and Specificity

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  • [CommentIn] J Magn Reson Imaging. 2011 Mar;33(3):755; author reply 756 [21563262.001]
  • (PMID = 20512884.001).
  • [ISSN] 1522-2586
  • [Journal-full-title] Journal of magnetic resonance imaging : JMRI
  • [ISO-abbreviation] J Magn Reson Imaging
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Ki-67 Antigen
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65. Kaloshi G, Mokhtari K, Carpentier C, Taillibert S, Lejeune J, Marie Y, Delattre JY, Godbout R, Sanson M: FABP7 expression in glioblastomas: relation to prognosis, invasion and EGFR status. J Neurooncol; 2007 Sep;84(3):245-8
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  • FABP7 expression has been analysed in a series of 123 glioblastomas (68 pure GBM, 55 GBMO, i.e. with oligodendroglial component).
  • Nuclear expression of FABP7 was more specifically related to EGFR amplification and more invasive tumors.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / pathology. Carrier Proteins / biosynthesis. Glioblastoma / pathology. Receptor, Epidermal Growth Factor / metabolism. Tumor Suppressor Proteins / biosynthesis
  • [MeSH-minor] Adult. Aged. Cell Nucleus / metabolism. Cytoplasm / metabolism. Fatty Acid-Binding Protein 7. Female. Gene Amplification. Humans. Kaplan-Meier Estimate. Male. Middle Aged. Neoplasm Invasiveness / pathology. Prognosis. Protein Transport / physiology

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  • (PMID = 17415524.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Carrier Proteins; 0 / FABP7 protein, human; 0 / Fatty Acid-Binding Protein 7; 0 / Tumor Suppressor Proteins; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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66. Idbaih A, Boisselier B, Marie Y, Sanson M, El Hallani S, Crinière E, Fourtassi M, Paris S, Carpentier C, Rousseau A, Mokhtari K, Combadière C, Laigle-Donadey F, Hoang-Xuan K, Delattre JY: Influence of MDM2 SNP309 alone or in combination with the TP53 R72P polymorphism in oligodendroglial tumors. Brain Res; 2008 Mar 10;1198:16-20
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  • [Title] Influence of MDM2 SNP309 alone or in combination with the TP53 R72P polymorphism in oligodendroglial tumors.
  • This SNP has never been specifically investigated in a large series of oligodendroglial tumors.
  • In a comparison with 232 healthy controls, we retrospectively analyzed blood samples of 293 oligodendroglial tumor patients for MDM2 SNP309.
  • In addition, the TP53 R72P polymorphism and chromosome 1p/19q status, a major biomarker in oligodendroglial tumors, were investigated.
  • The frequencies of T/T, T/G, and G/G genotypes in patients and controls did not suggest an increased risk of oligodendroglial tumor formation correlating with MDM2 SNP309.
  • A borderline association was found between MDM2 SNP309 and overall survival (p=0.05), but in multivariate analysis, MDM2 SNP309 did not provide prognostic information complementary to age, tumor phenotype, grade, and 1p/19q status in oligodendroglial tumors.
  • Finally, MDM2 SNP309, alone or in combination with TP53 R72P, was not associated with oligodendroglial tumors.
  • [MeSH-major] Brain Neoplasms / genetics. Genetic Predisposition to Disease / genetics. Oligodendroglioma / genetics. Polymorphism, Single Nucleotide / genetics. Proto-Oncogene Proteins c-mdm2 / genetics. Tumor Suppressor Protein p53 / genetics
  • [MeSH-minor] Adolescent. Adult. Age Factors. Aged. Chromosomes, Human, Pair 1 / genetics. DNA Mutational Analysis. Female. Genetic Testing. Genotype. Humans. Male. Middle Aged. Phenotype. Prognosis. Retrospective Studies. Survival Rate

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  • (PMID = 18262501.001).
  • [ISSN] 0006-8993
  • [Journal-full-title] Brain research
  • [ISO-abbreviation] Brain Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / TP53 protein, human; 0 / Tumor Suppressor Protein p53; EC 6.3.2.19 / MDM2 protein, human; EC 6.3.2.19 / Proto-Oncogene Proteins c-mdm2
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67. Traiffort E, Ruat M, O'Regan S, Meunier FM: Molecular characterization of the family of choline transporter-like proteins and their splice variants. J Neurochem; 2005 Mar;92(5):1116-25
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  • In adult rat tissues, CTL2-4 mRNAs are mainly detected in peripheral tissues, while CTL1 is widely expressed throughout the nervous system.
  • In the developing brain, CTL1a is expressed in both neurones and oligodendroglial cells, whereas CTL1b is restricted to oligodendroglial cells.
  • [MeSH-minor] Amino Acid Sequence. Animals. Animals, Newborn. Blotting, Northern / methods. Brain / cytology. Brain / metabolism. Cell Line, Tumor. Choline / metabolism. Choline O-Acetyltransferase / metabolism. DNA / isolation & purification. Humans. In Situ Hybridization / methods. Male. Mice. Molecular Sequence Data. Myelin Basic Protein / metabolism. Neuroblastoma. Neurons / metabolism. Oligodendroglia / metabolism. Peripheral Nerves / metabolism. Phylogeny. Protein Isoforms. RNA / isolation & purification. RNA, Messenger. Rats. Rats, Wistar. Transfection / methods. Tritium / metabolism


68. Voloschin AD, Louis DN, Cosgrove GR, Batchelor TT: Neoadjuvant temozolomide followed by complete resection of a 1p- and 19q-deleted anaplastic oligoastrocytoma: case study. Neuro Oncol; 2005 Jan;7(1):97-100
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  • A 38-year-old woman presented with an infiltrative tumor of the right frontal lobe and genu of the corpus callosum that was deemed only partially resectable.
  • The partial response of the tumor to chemotherapy rendered the lesion amenable to gross total resection, which was performed subsequently.
  • Thus, preoperative chemotherapy decreased tumor mass to a degree that subsequently enabled a gross total resection.
  • This treatment strategy, although common in the treatment of other solid tumors, is rarely utilized in adult neuro-oncology and raises another potential role for chromosome testing in oligodendroglial tumor management.

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  • (PMID = 15701287.001).
  • [ISSN] 1522-8517
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] ENG
  • [Grant] United States / NCI NIH HHS / CA / R01 CA057683; United States / NCI NIH HHS / CA / CA57683
  • [Publication-type] Case Reports; Journal Article; Research Support, U.S. Gov't, P.H.S.
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Alkylating; 7GR28W0FJI / Dacarbazine; 85622-93-1 / temozolomide
  • [Other-IDs] NLM/ PMC1871619
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69. Shaw EJ, Haylock B, Husband D, du Plessis D, Sibson DR, Warnke PC, Walker C: Gene expression in oligodendroglial tumors. Anal Cell Pathol (Amst); 2010;33(2):81-94
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  • [Title] Gene expression in oligodendroglial tumors.
  • BACKGROUND: Oligodendroglial tumors with 1p/19q loss are more likely to be chemosensitive and have longer survival than those with intact 1p/19q, but not all respond to chemotherapy, warranting investigation of the biological basis of chemosensitivity.
  • METHODS: Gene expression profiling was performed using amplified antisense RNA from 28 oligodendroglial tumors treated with chemotherapy (26 serial stereotactic biopsy, 2 resection).
  • RESULTS: Unsupervised hierarchical clustering showed clustering of multiple samples from the same case in 14/17 cases and identified subgroups associated with tumor grade and 1p/19q status.
  • IQGAP1, INA, TGIF1, NR2F2 and MYCBP were differentially expressed in oligodendroglial tumors with 1p/19q loss.
  • CONCLUSION: Gene expression profiling using serial stereotactic biopsies indicated greater homogeneity within tumors than between tumors.
  • Genes associated with 1p/19q status or response were identified warranting further elucidation of their role in oligodendroglial tumors.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Aged. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Cluster Analysis. Drug Resistance, Neoplasm / genetics. Female. Gene Expression. Humans. Male. Middle Aged. Oligonucleotide Array Sequence Analysis. Principal Component Analysis. Reverse Transcriptase Polymerase Chain Reaction. Young Adult

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  • [ErratumIn] Cell Oncol (Dordr). 2011 Aug;34(4):407-8
  • (PMID = 20966545.001).
  • [ISSN] 2210-7185
  • [Journal-full-title] Analytical cellular pathology (Amsterdam)
  • [ISO-abbreviation] Anal Cell Pathol (Amst)
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Netherlands
  • [Other-IDs] NLM/ PMC4605574
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70. Weller M: [Chemotherapy for brain tumors in adult patients]. Nervenarzt; 2008 Feb;79(2):231-41
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  • [Title] [Chemotherapy for brain tumors in adult patients].
  • Chemotherapy has become a third major treatment option for patients with brain tumors, in addition to surgery and radiotherapy.
  • Outside such clinical trials chemotherapy is used in addition to radiotherapy, e.g., in anaplastic astrocytoma, medulloblastoma or germ cell tumors, or as an alternative to radiotherapy, e.g., in anaplastic oligodendroglial tumors or low-grade gliomas.
  • In contrast, there is no established role for chemotherapy in other tumors such as ependymomas, meningiomas or neurinomas.
  • Primary cerebral lymphomas are probably the only brain tumors which can be cured by chemotherapy alone and only by chemotherapy.
  • The chemotherapy of brain metastases follows the recommendations for the respective primary tumors.
  • [MeSH-major] Antineoplastic Agents / therapeutic use. Brain Neoplasms / drug therapy. Glioma / drug therapy. Lymphoma / drug therapy
  • [MeSH-minor] Adult. Chemotherapy, Adjuvant. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Combined Modality Therapy. DNA Methylation. DNA Modification Methylases / genetics. DNA Repair Enzymes / genetics. Dacarbazine / adverse effects. Dacarbazine / analogs & derivatives. Dacarbazine / therapeutic use. Genetic Markers / genetics. Humans. Prognosis. Promoter Regions, Genetic / genetics. Topotecan / adverse effects. Topotecan / therapeutic use. Tumor Suppressor Proteins / genetics

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  • (PMID = 18253773.001).
  • [ISSN] 0028-2804
  • [Journal-full-title] Der Nervenarzt
  • [ISO-abbreviation] Nervenarzt
  • [Language] ger
  • [Publication-type] Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / Genetic Markers; 0 / Tumor Suppressor Proteins; 7GR28W0FJI / Dacarbazine; 7M7YKX2N15 / Topotecan; EC 2.1.1.- / DNA Modification Methylases; EC 2.1.1.63 / MGMT protein, human; EC 6.5.1.- / DNA Repair Enzymes; YF1K15M17Y / temozolomide
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71. Fontaine D, Vandenbos F, Lebrun C, Paquis V, Frenay M: [Diagnostic and prognostic values of 1p and 19q deletions in adult gliomas: critical review of the literature and implications in daily clinical practice]. Rev Neurol (Paris); 2008 Jun-Jul;164(6-7):595-604
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Diagnostic and prognostic values of 1p and 19q deletions in adult gliomas: critical review of the literature and implications in daily clinical practice].
  • In grade 3 oligodendroglial tumors, the probability of responding to chemotherapy, and the duration of response, were higher when codeletions were present.
  • This suggests that, in these tumors, the presence of codeletion is a strong argument in favor of adjuvant chemotherapy.
  • Oligodendroglial tumors with 1p deletion or 1p19q codeletion seemed to have a better prognosis, as five-year survival rates were 50% higher than in tumors without deletion.
  • (1) higher chemosensitivity, (2) tumor location more frequently in the frontal lobe, leading to better resection and lower risk of neurological deficit, (3) slower growth rate, (4) higher risk of epilepsy, leading to an early detection.
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / pathology. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Glioma / genetics. Glioma / pathology

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  • (PMID = 18565359.001).
  • [ISSN] 0035-3787
  • [Journal-full-title] Revue neurologique
  • [ISO-abbreviation] Rev. Neurol. (Paris)
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] France
  • [Chemical-registry-number] 0 / Antineoplastic Agents
  • [Number-of-references] 63
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72. Järvelä S, Parkkila S, Bragge H, Kähkönen M, Parkkila AK, Soini Y, Pastorekova S, Pastorek J, Haapasalo H: Carbonic anhydrase IX in oligodendroglial brain tumors. BMC Cancer; 2008;8:1
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  • [Title] Carbonic anhydrase IX in oligodendroglial brain tumors.
  • METHODS: This study was set out to investigate the role of CA IX in a series of 86 oligodendroglial brain tumors (71 primary and 15 recurrent; 48 pure oligodendrogliomas and 40 mixed oligoastrocytomas).
  • RESULTS: 80% of the tumors showed CA IX expression by immunohistochemistry.
  • Tumors with moderate or strong CA IX expression had decreased level of cell proliferation compared to weak or no CA IX expression (median 2.9 vs. 5.8, p = 0.015).
  • CA IX correlated with two antioxidative enzymes, manganese superoxide dismutase (MnSOD) and regulatory gammaglutamylcysteine synthetase (GLCL-R): CA IX expression was significantly higher in MnSOD-positive tumors (p = 0.008) and decreased in GLCL-R-positive tumors (p = 0.044).
  • CONCLUSION: CA IX was proved to be an independent prognostic indicator in oligodendroglial brain tumors, and it also correlates reversely with cell proliferation.
  • It may have a role in the biology of oligodendrogliomas, and most interestingly, as it is mainly expressed in tumor tissue, CA IX could serve as a target molecule for anticancer treatments.
  • [MeSH-major] Antigens, Neoplasm / metabolism. Brain Neoplasms / enzymology. Carbonic Anhydrases / metabolism. Oligodendroglioma / enzymology
  • [MeSH-minor] Adult. Cell Proliferation. Follow-Up Studies. Humans. Survival Rate

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  • (PMID = 18173856.001).
  • [ISSN] 1471-2407
  • [Journal-full-title] BMC cancer
  • [ISO-abbreviation] BMC Cancer
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antigens, Neoplasm; EC 4.2.1.1 / CA9 protein, human; EC 4.2.1.1 / Carbonic Anhydrases
  • [Other-IDs] NLM/ PMC2245965
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73. Mariani L, Deiana G, Vassella E, Fathi AR, Murtin C, Arnold M, Vajtai I, Weis J, Siegenthaler P, Schobesberger M, Reinert MM: Loss of heterozygosity 1p36 and 19q13 is a prognostic factor for overall survival in patients with diffuse WHO grade 2 gliomas treated without chemotherapy. J Clin Oncol; 2006 Oct 10;24(29):4758-63
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • PATIENTS AND METHODS: We assessed the LOH status of tumors from patients harboring WHO grade 2 gliomas diagnosed between 1991 and 2000.
  • Tumor volume (P < .0001), neurologic deficits at diagnosis (P < .01), involvement of more than one lobe (P < .01), and absence of an oligodendroglial component (P < .05) were also predictors of shorter overall survival.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Glioma / genetics. Loss of Heterozygosity
  • [MeSH-minor] Adult. Aged. Female. Follow-Up Studies. Humans. Male. Middle Aged. Prognosis. Survival Analysis

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  • (PMID = 16966689.001).
  • [ISSN] 1527-7755
  • [Journal-full-title] Journal of clinical oncology : official journal of the American Society of Clinical Oncology
  • [ISO-abbreviation] J. Clin. Oncol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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74. Ferrer-Luna R, Mata M, Núñez L, Calvar J, Dasí F, Arias E, Piquer J, Cerdá-Nicolás M, Taratuto AL, Sevlever G, Celda B, Martinetto H: Loss of heterozygosity at 1p-19q induces a global change in oligodendroglial tumor gene expression. J Neurooncol; 2009 Dec;95(3):343-354
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  • [Title] Loss of heterozygosity at 1p-19q induces a global change in oligodendroglial tumor gene expression.
  • Oligodendroglial tumors presenting loss of heterozygosity (LOH) at 1p and 19q have been shown to be sensitive to chemotherapy, thus making 1p-19q status testing a key aspect in oligodendroglioma diagnosis and prognosis.
  • Twenty-nine tumor samples (19 oligodendrogliomas, 10 oligoastrocytomas) were analyzed in order to obtain a molecular profile identifying those bearing 1p-19q LOH.
  • Tumors with 1p-19q LOH overexpressed genes related to neurogenesis.
  • This molecular signature was validated by analyzing a set of ten tumor samples (three oligodendrogliomas, seven oligoastrocytomas); all ten samples were correctly assigned.
  • Tumors without LOH at 1p-19q exhibit the opposite characteristics, explaining their more aggressive behavior.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Gene Expression Regulation, Neoplastic. Loss of Heterozygosity. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Child, Preschool. Chromosome Deletion. Cluster Analysis. Gene Expression Profiling. Humans. Middle Aged. Reverse Transcriptase Polymerase Chain Reaction


75. French PJ, Swagemakers SM, Nagel JH, Kouwenhoven MC, Brouwer E, van der Spek P, Luider TM, Kros JM, van den Bent MJ, Sillevis Smitt PA: Gene expression profiles associated with treatment response in oligodendrogliomas. Cancer Res; 2005 Dec 15;65(24):11335-44
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  • Oligodendrogliomas are a specific subtype of brain tumor of which the majority responds favorably to chemotherapy.
  • In this study, we made use of expression profiling to identify chemosensitive oligodendroglial tumors.
  • Correlation of expression profiles to the tumors' response to treatment identified 16 differentially expressed probe sets.
  • Because transcripts associated with chemotherapeutic response were identified independent of common chromosomal aberrations, expression profiling may be used as an alternative approach to the tumors' 1p status to identify chemosensitive oligodendroglial tumors.
  • The observation that many genes are differentially expressed between long and short survivors indicates that the genetic background of the tumor is an important factor in determining the prognosis of the patient.
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Brain Neoplasms / drug therapy. Brain Neoplasms / genetics. Chromosome Aberrations. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. DNA, Neoplasm / genetics. Female. Humans. In Situ Hybridization, Fluorescence. Male. Middle Aged. Prognosis. Survival Rate. Treatment Outcome

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  • (PMID = 16357140.001).
  • [ISSN] 0008-5472
  • [Journal-full-title] Cancer research
  • [ISO-abbreviation] Cancer Res.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DNA, Neoplasm
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76. Phi JH, Park SH, Chung CK, Wang KC, Cho BK, Kim SK: Atypical cell clusters expressing both neuronal and oligodendrocytic markers: novel histological pattern of glioneuronal tumors? Pathol Int; 2009 Oct;59(10):735-43
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  • [Title] Atypical cell clusters expressing both neuronal and oligodendrocytic markers: novel histological pattern of glioneuronal tumors?
  • Glioneuronal tumors are a group of brain tumors that consist of both neuronal and glial cells.
  • The spectrum of glioneuronal tumors is currently expanding, and many atypical glioneuronal tumors require further characterization.
  • Two patients are described who had an atypical glioneuronal tumor with peculiar pathological features.
  • One patient was a 7-year-old girl with a tumor in the right cerebellar hemisphere.
  • The other was a 37-year-old man with a tumor in the spinal cord.
  • Although the clinical features (age at diagnosis, tumor location, and recurrence) were very different in these patients, the tumors had a characteristic common feature of atypical cell clusters.
  • Intriguingly, the tumor cells in the clusters expressed both neuronal and oligodendroglial markers, indicating aberrant differentiation.
  • Furthermore, the cluster-forming cells had modest proliferative indices and CD133 expression, indicating their role in the growth of the tumor.
  • It is believed that these atypical cell clusters are a novel pattern of differentiation of glioneuronal tumors and that they need further investigation.
  • [MeSH-major] Biomarkers, Tumor / metabolism. Cerebellar Neoplasms / pathology. Ganglioglioma / pathology. Neurons / pathology. Oligodendroglia / pathology. Spinal Neoplasms / pathology
  • [MeSH-minor] Adult. Child. Disease-Free Survival. Female. Humans. Magnetic Resonance Imaging. Male. Neoplasm Recurrence, Local. Treatment Outcome

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  • (PMID = 19788619.001).
  • [ISSN] 1440-1827
  • [Journal-full-title] Pathology international
  • [ISO-abbreviation] Pathol. Int.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Australia
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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77. Majumdar K, Radotra BD, Vasishta RK, Pathak A: Platelet-derived growth factor expression correlates with tumor grade and proliferative activity in human oligodendrogliomas. Surg Neurol; 2009 Jul;72(1):54-60
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  • [Title] Platelet-derived growth factor expression correlates with tumor grade and proliferative activity in human oligodendrogliomas.
  • BACKGROUND: For the last one and a half decade, it has been found that platelet-derived growth factor (PDGF) promotes glial tumor growth through autocrine and paracrine loops, by expression of PDGFalpha receptor (PDGFRalpha) on glioma cells and PDGFbeta receptor (PDGFRbeta) on proliferating endothelial cells.
  • However, studies on oligodendrogliomas, correlating expression of PDGF and its receptor with tumor grade and proliferative activity, through MIB-1 labeling index (LI) are relatively few as compared to astroglial counterpart.
  • METHODS: Formalin-fixed paraffin-embedded tissues from 55 cases of oligodendrogliomas (34 World Health Organization [WHO] grade II and 21 WHO grade III tumors) were subjected to immunohistochemistry.
  • The PDGF expression scores had a positive correlation with MIB-1 LI, irrespective of tumor grade (Pearson's correlation coefficient, r = 0.566; P < .001).
  • However, there was no significant difference of PDGFRalpha expression between 2 grades of tumors.
  • CONCLUSIONS: The results of this study showed that MIB-1 LI is a rapid and cost-effective modality for predicting tumor grade in oligodendrogliomas.
  • Immunohistochemistry for PDGF was found to be useful in differentiating various grades of oligodendroglioma, and therefore, it may be involved in tumor cell proliferation and malignant transformation.
  • Platelet-derived growth factor receptor alpha, although expressed in oligodendroglial neoplasms, was not found to be useful in predicting tumor grade.
  • [MeSH-major] Antibodies, Antinuclear / metabolism. Antibodies, Monoclonal / metabolism. Biomarkers, Tumor / metabolism. Brain Neoplasms / metabolism. Brain Neoplasms / pathology. Oligodendroglioma / metabolism. Oligodendroglioma / pathology. Platelet-Derived Growth Factor / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Cell Proliferation. Child. Cost-Benefit Analysis. Diagnosis, Differential. Female. Humans. Immunohistochemistry / economics. Immunohistochemistry / methods. Male. Middle Aged. Predictive Value of Tests. Retrospective Studies. Sensitivity and Specificity. Time Factors. Young Adult

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  • (PMID = 19559929.001).
  • [ISSN] 1879-3339
  • [Journal-full-title] Surgical neurology
  • [ISO-abbreviation] Surg Neurol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antibodies, Antinuclear; 0 / Antibodies, Monoclonal; 0 / Biomarkers, Tumor; 0 / MIB-1 antibody; 0 / Platelet-Derived Growth Factor
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78. Absaliamova OV, Korshunov AG, Loshakov VA, Kobiakov GL, Golanov AV, Urakov SV, Amanov RD, Lichinitser MR: [Influence of molecular-genetic factors on prognosis in patients with oligodendroglial tumors]. Zh Vopr Neirokhir Im N N Burdenko; 2009 Jan-Mar;(1):17-23; discussion 23-4
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  • [Title] [Influence of molecular-genetic factors on prognosis in patients with oligodendroglial tumors].
  • Previous studies demonstrated that patients with oligodendroglial tumors (OT) have longer overall and recurrence free survival than patients with other glial tumors of the same grade.
  • In the series of 241 cases (107 male, 134 female patients, median age -- 38 years, (16-73)) we analyzed the impact of histology, tumor grade and genetic alterations on time to tumor progression (TTP).
  • All patients underwent surgical resection of tumor or biopsy from 2000 to 2005.
  • The type of tumor (pure or mixed) didn't influence survival.
  • TTP of patients with grade II and grade III tumors was 37.7 and 48.2 months, respectively (p = 0.035).
  • In pure O codeletion 1p19q was detected more frequently (in O -- 75%, in AO -- 56%) than in mixed tumors (in OA -- 31%, in AOA -- 35%).
  • None of the tumors with 1pl9q deletion had other genetic alterations.
  • Pure O more frequently had 1p19q deletion than mixed tumors.
  • [MeSH-major] Brain Neoplasms / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Chromosome Deletion. Disease Progression. Disease-Free Survival. Female. Humans. Male. Middle Aged. Predictive Value of Tests. Young Adult

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  • (PMID = 19507310.001).
  • [ISSN] 0042-8817
  • [Journal-full-title] Zhurnal voprosy neĭrokhirurgii imeni N. N. Burdenko
  • [ISO-abbreviation] Zh Vopr Neirokhir Im N N Burdenko
  • [Language] rus
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] Russia (Federation)
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79. Roessler K, Gatterbauer B, Becherer A, Paul M, Kletter K, Prayer D, Hoeftberger R, Hainfellner J, Asenbaum S, Knosp E: Surgical target selection in cerebral glioma surgery: linking methionine (MET) PET image fusion and neuronavigation. Minim Invasive Neurosurg; 2007 Oct;50(5):273-80
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • OBJECTIVE: The objective of this study was to investigate the histological correlate of (11)C-methionine (MET) PET uptake of brain gliomas by image fusion for navigated surgery.
  • RESULTS: MET PET tumor uptake was detected in 26 of 27 patients (96.3%).
  • The quantitative MET tumor standardized uptake value (SUV) ratio was significantly higher in malignant gliomas and oligodendrogliomas than in low-grade gliomas (2.76/2.62 vs. 1.67, p=0.03).
  • Focal uptake corresponded to malignant glioma histology in 66.7%, and uniform global uptake to oligodendroglial histology in 72.7%.
  • In oligodendrogliomas, global MET uptake constituted 81.5% (range 53.8-135%) of the MRI T(1) tumor volume on average and was limited to the MRI FLAIR tumor volume in 86% (7/8) of patients.
  • CONCLUSION: MET PET image fusion may facilitate the targeting of anaplastic foci in homogeneous MRI non-enhancing gliomas for biopsy, may identify oligodendroglial histology preoperatively as well as characterize biologically active tumor volumes within MRI T(1)/FLAIR tumor areas of candidate patients for resection.
  • [MeSH-major] Brain Neoplasms / radionuclide imaging. Brain Neoplasms / surgery. Glioma / radionuclide imaging. Glioma / surgery. Neuronavigation / methods. Positron-Emission Tomography / methods
  • [MeSH-minor] Adolescent. Adult. Aged. Carbon Radioisotopes. Child. Diagnosis, Differential. Female. Humans. Image Processing, Computer-Assisted / instrumentation. Image Processing, Computer-Assisted / methods. Male. Methionine / metabolism. Middle Aged. Oligodendroglioma / pathology. Oligodendroglioma / radionuclide imaging. Oligodendroglioma / surgery. Predictive Value of Tests. Preoperative Care / instrumentation. Preoperative Care / methods. Sensitivity and Specificity


80. Pang JC, Li KK, Lau KM, Ng YL, Wong J, Chung NY, Li HM, Chui YL, Lui VW, Chen ZP, Chan DT, Poon WS, Wang Y, Mao Y, Zhou L, Ng HK: KIAA0495/PDAM is frequently downregulated in oligodendroglial tumors and its knockdown by siRNA induces cisplatin resistance in glioma cells. Brain Pathol; 2010 Nov;20(6):1021-32
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  • [Title] KIAA0495/PDAM is frequently downregulated in oligodendroglial tumors and its knockdown by siRNA induces cisplatin resistance in glioma cells.
  • Co-deletion of chromosomes 1p and 19q is a common event in oligodendroglial tumors (OTs), suggesting the presence of OT-related genes.
  • A novel gene KIAA0495/p53-dependent apoptosis modulator (PDAM) was found frequently deregulated, with 37 of 58 (63.8%) OTs examined showing reduced expression compared with normal brain.
  • [MeSH-major] Brain Neoplasms / metabolism. Gene Expression Regulation, Neoplastic / drug effects. Oligodendroglioma / metabolism. RNA, Long Noncoding / physiology. RNA, Small Interfering / pharmacology. Tumor Suppressor Proteins / metabolism
  • [MeSH-minor] Adult. Aged. Antineoplastic Agents / pharmacology. Cell Line, Tumor. Child. Cisplatin / pharmacology. Down-Regulation / drug effects. Drug Interactions. Female. Glioma / pathology. Humans. Male. Middle Aged. Protein Transport / drug effects. Protein Transport / genetics. Thermosensing / genetics. Transfection. Young Adult


81. Frenel JS, Botti M, Loussouarn D, Campone M: [Prognostic and predictive factors for gliomas in adults]. Bull Cancer; 2009 Apr;96(4):357-67
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  • Malignant gliomas are the most prevalent type of primary brain tumor in adults.
  • Because patients with a same histologic diagnosis have variable outcomes, there is a need to develop better prognostic markers to predict tumor behaviour and response to therapy.
  • For patients with low-grade gliomas, several clinical parameters affect prognosis and therapeutic options: histological type, tumor measurements, young age, performance status.
  • For high-grade tumors, prognostic and predictive molecular markers have been identified.
  • The combined loss of 1p and 19q is strongly correlated with the oligodendroglial phenotype and is associated with both chemotherapeutic response and prolonged overall survival in anaplastic (grade III) oligodendrogliomas treated with PCV chemotherapy and probably with temozolomide.
  • [MeSH-major] Brain Neoplasms. Glioma
  • [MeSH-minor] Adult. Age Factors. Biomarkers, Tumor / metabolism. Chromosome Deletion. Humans. PTEN Phosphohydrolase / metabolism. Predictive Value of Tests. Prognosis. Receptor, Epidermal Growth Factor / antagonists & inhibitors. Receptor, Epidermal Growth Factor / metabolism. Treatment Outcome. Tumor Burden

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  • (PMID = 19357011.001).
  • [ISSN] 1769-6917
  • [Journal-full-title] Bulletin du cancer
  • [ISO-abbreviation] Bull Cancer
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] France
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; EC 2.7.10.1 / Receptor, Epidermal Growth Factor; EC 3.1.3.48 / PTEN protein, human; EC 3.1.3.67 / PTEN Phosphohydrolase
  • [Number-of-references] 52
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82. Fuller CE, Perry A: Molecular diagnostics in central nervous system tumors. Adv Anat Pathol; 2005 Jul;12(4):180-94
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  • [Title] Molecular diagnostics in central nervous system tumors.
  • In this regard, the field is primed by recent advances in basic research, elucidating the molecular mechanisms of tumorigenesis and progression in the most common adult and pediatric brain tumors.
  • Thus far, few have made the transition into routine clinical practice, the most notable example being 1p and 19q testing in oligodendroglial tumors.
  • The goal of this article is to highlight the most common genetic alterations currently implicated in CNS tumors, focusing most on those that are either already in common use in ancillary molecular diagnostics testing or are likely to become so in the near future.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Central Nervous System Neoplasms / genetics. Ependymoma / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Animals. Biomarkers, Tumor / analysis. Biomarkers, Tumor / genetics. Chromosome Aberrations. Humans. In Situ Hybridization, Fluorescence. Meningeal Neoplasms / diagnosis. Meningeal Neoplasms / genetics. Meningioma / diagnosis. Meningioma / genetics. Neoplasms, Germ Cell and Embryonal / diagnosis. Neoplasms, Germ Cell and Embryonal / genetics. Polymerase Chain Reaction. Prognosis

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  • (PMID = 16096380.001).
  • [ISSN] 1072-4109
  • [Journal-full-title] Advances in anatomic pathology
  • [ISO-abbreviation] Adv Anat Pathol
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
  • [Number-of-references] 260
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83. Jenkinson MD, Smith TS, Joyce K, Fildes D, du Plessis DG, Warnke PC, Walker C: MRS of oligodendroglial tumors: correlation with histopathology and genetic subtypes. Neurology; 2005 Jun 28;64(12):2085-9
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  • [Title] MRS of oligodendroglial tumors: correlation with histopathology and genetic subtypes.
  • BACKGROUND: Oligodendroglial neoplasms with combined loss of chromosomes 1p and 19q may have a good prognosis and respond to procarbazine-lomustine (CCNU)-vincristine (PCV) chemotherapy.
  • OBJECTIVE: To determine whether single voxel magnetic resonance spectroscopy (SV-MRS) obtained through routine clinical practice distinguishes between histopathologic and genetic subtypes of oligodendroglial tumors.
  • METHODS: Forty-eight patients with oligodendroglial tumors (19 oligodendrogliomas and 29 oligoastrocytomas) underwent molecular genetic analysis to determine allelic imbalance in chromosomes 1p36 and 19q13.
  • SV-MRS was obtained pretherapy to determine tumor metabolite ratios.
  • RESULTS: Grade III oligodendroglial tumors had higher choline (Mann-Whitney; p = 0.002), methyl lipid (Mann-Whitney; p = 0.002), and combined methylene lipid and lactate ratios (Mann-Whitney; p < 0.001) than grade II tumors.
  • Lactate did not distinguish between tumor types (Fisher exact test; p = 0.342) or grade (Fisher exact test; p = 0.452).
  • There were no significant associations when tumors were analyzed according to histopathology or genetic subtypes.
  • CONCLUSION: As a noninvasive diagnostic tool used in routine clinical practice, SV-MRS has the potential benefit of determining oligodendroglial tumor grade but not subtypes classified by histopathology or molecular genetics.
  • [MeSH-major] Astrocytoma / diagnosis. Brain Neoplasms / diagnosis. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Magnetic Resonance Spectroscopy / standards. Oligodendroglioma / diagnosis
  • [MeSH-minor] Adult. Aged. Allelic Imbalance / genetics. Choline / metabolism. DNA Mutational Analysis. Diagnosis, Differential. Female. Gene Expression Regulation, Neoplastic / genetics. Genetic Testing. Genotype. Humans. Lactic Acid / metabolism. Lipids / analysis. Male. Middle Aged. Predictive Value of Tests

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  • (PMID = 15985578.001).
  • [ISSN] 1526-632X
  • [Journal-full-title] Neurology
  • [ISO-abbreviation] Neurology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Lipids; 33X04XA5AT / Lactic Acid; N91BDP6H0X / Choline
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84. Phi JH, Park SH, Kim SK, Paek SH, Kim JH, Lee YJ, Cho BK, Park CK, Lee DH, Wang KC: Sox2 expression in brain tumors: a reflection of the neuroglial differentiation pathway. Am J Surg Pathol; 2008 Jan;32(1):103-12
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  • [Title] Sox2 expression in brain tumors: a reflection of the neuroglial differentiation pathway.
  • Moreover, it was recently found that brain tumors contain stem cells that resemble normal neuroglial stem cells in many respects.
  • This study was undertaken to describe Sox2 expression in various brain tumors, and to determine whether Sox2 expression is a universal feature of brain tumors, or whether its expression is limited to a specific lineage of brain tumors.
  • Sox2 immunohistochemistry was performed on 194 brain tumor tissues of various kinds.
  • Fetal and adult normal brain tissues obtained by autopsy and brain tissues of epilepsy patients with cortical dysplasia were used as controls.
  • Sox2 was found to be expressed in various glial tumors, including those with astroglial, oligodendroglial, and ependymal lineages, and in the glial components of mixed neuroglial tumors, regardless of pathologic grade.
  • In brain tumors of embryonal origin, supratentorial primitive neuroectodermal tumors showed robust Sox2 expression, whereas medulloblastomas and pineoblastomas did not.
  • The majority of Sox2-positive tumor cells coexpressed glial fibrillary acidic protein, and most Sox2-negative cells in medulloblastomas and pineoblastomas showed neuronal differentiation.
  • This study suggest that Sox2 may be a tumor marker of glial lineages rather than a universal brain tumor stem cell marker, because its expression pattern was found to correspond to differentiation pathways.
  • On the other hand, the aberrant coexpressions of Sox2 and of a neuronal marker were widely observed in glioblastomas, which reflects a disorganized differentiation pattern that characterizes highly malignant tumors.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / metabolism. HMGB Proteins / biosynthesis. Neuroglia / cytology. Neuroglia / metabolism. Transcription Factors / biosynthesis
  • [MeSH-minor] Brain / cytology. Brain / embryology. Brain / metabolism. Cell Differentiation. Cell Lineage. Fluorescent Antibody Technique. Glial Fibrillary Acidic Protein / metabolism. Humans. Immunohistochemistry. RNA, Messenger / analysis. Reverse Transcriptase Polymerase Chain Reaction. SOXB1 Transcription Factors

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  • (PMID = 18162777.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Glial Fibrillary Acidic Protein; 0 / HMGB Proteins; 0 / RNA, Messenger; 0 / SOX2 protein, human; 0 / SOXB1 Transcription Factors; 0 / Transcription Factors
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85. Martínez L, Cuesta J, Santos S, Tejero C: [Focal presentation of progressive multifocal leukoencephalopathy: first manifestation of human immunodeficiency virus infection]. Neurologia; 2008 Oct;23(8):532-5
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  • INTRODUCTION: Progressive multifocal leukoencephalopathy (PML) is a subacute demyelinating disorder of central nervous system caused by an opportunistic papovavirus infection of oligodendroglial cells, the JC virus.
  • Their antibodies are detectable in 70% of healthy adult subjects.
  • A unique wide hyperintense subcortical right temporoparietal lobe lesion was shown by a cerebral magnetic resonance imaging (MRI), suggesting a differential diagnosis between PLM and low grade glial tumor.
  • DISCUSSION: We report this case to suggest that inva- sive diagnosis methods may be useful to differentiate between PLM and low grade glial tumors and to establish a correct prognosis.
  • [MeSH-minor] Adult. Antiretroviral Therapy, Highly Active. Humans. JC Virus / metabolism. Male

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  • (PMID = 18392989.001).
  • [ISSN] 0213-4853
  • [Journal-full-title] Neurología (Barcelona, Spain)
  • [ISO-abbreviation] Neurologia
  • [Language] spa
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] Spain
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86. Derlon JM, Cabal P, Blaizot X, Borha A, Chapon F: [Metabolic imaging for supratentorial oligodendrogliomas]. Neurochirurgie; 2005 Sep;51(3-4 Pt 2):309-22
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  • Only a few publications have yet reported its use in oligodendroglial tumors.
  • These findings and partial results obtained in ongoing work, suggest some preliminary conclusions: 11C-MET (L-methyl-methionine) is a more appropriate tracer than 18F-FDG (fluoro-deoxy-glucose), in terms of both specificity and sensitivity, for the assessment of patients with this category of tumor.
  • PET/MET allows differentiation between grade II and grade III oligodendrogliomas; better targeting for stereotactic biopsy; more accurate assessment of the post-operative residual tumor; identification of progression from low-grade to anaplastic grade during the disease course; differentiation between recurrence and a post-radiation processes.
  • [MeSH-major] Brain. Oligodendroglioma / metabolism. Positron-Emission Tomography. Supratentorial Neoplasms / metabolism
  • [MeSH-minor] Adult. Amino Acids / metabolism. Female. Glucose / metabolism. Glycolysis. Humans. Imaging, Three-Dimensional. Magnetic Resonance Imaging. Male. Methionine / analogs & derivatives. Methionine / pharmacokinetics. Radioactive Tracers. Tomography, X-Ray Computed

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  • (PMID = 16292175.001).
  • [ISSN] 0028-3770
  • [Journal-full-title] Neuro-Chirurgie
  • [ISO-abbreviation] Neurochirurgie
  • [Language] fre
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] France
  • [Chemical-registry-number] 0 / Amino Acids; 0 / Radioactive Tracers; AE28F7PNPL / Methionine; BN630929UL / methionine methyl ester; IY9XDZ35W2 / Glucose
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87. Li NY, Zhou XJ, Jin XZ, Meng K, Ma HH, Zheng XG, Jiang SJ, Sun GQ: [A clinicopathologic study of dysembryoplstic neuroepithelial tumor]. Zhonghua Bing Li Xue Za Zhi; 2005 Sep;34(9):561-5
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  • [Title] [A clinicopathologic study of dysembryoplstic neuroepithelial tumor].
  • OBJECTIVE To study the clinicopathologic features, radiologic findings, treatment modalities and prognosis of dysembryoplastic neuroepithelial tumor (DNT).
  • On magnetic resonance imaging (MRI) study, the tumor was hypodense on T1 and hyperdense on T2.
  • Ten cases were treated by complete surgical excision and the remaining 8 tumors were partially excised.
  • None of the cases showed tumor recurrence after operation.
  • Histologically, all tumors demonstrated a multinodular architecture and were intracortical in location, sometimes with extension into the white matter.
  • The tumor was formed by an admixture of oligodendrocyte-like cells, mature neurons and astrocytes, with obvious microcystic changes.
  • Electron microscopy showed early neuronal, astrocytic and oligodendroglial differentiation of the oligodendrocyte-like cells.
  • CONCLUSIONS: DNT is a benign tumor (corresponding to WHO grade I) that can be cured by surgical excision, despite sometimes incomplete tumor removal.
  • [MeSH-major] Brain Neoplasms / pathology. Cerebral Cortex / pathology. Neoplasms, Neuroepithelial / pathology. Oligodendroglia / pathology
  • [MeSH-minor] Adolescent. Adult. Child. Child, Preschool. Female. Follow-Up Studies. Humans. Male. Middle Aged. Neurofilament Proteins / metabolism. S100 Proteins / metabolism. Survival Rate. Synaptophysin / metabolism

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  • (PMID = 16468305.001).
  • [ISSN] 0529-5807
  • [Journal-full-title] Zhonghua bing li xue za zhi = Chinese journal of pathology
  • [ISO-abbreviation] Zhonghua Bing Li Xue Za Zhi
  • [Language] chi
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] China
  • [Chemical-registry-number] 0 / Neurofilament Proteins; 0 / S100 Proteins; 0 / Synaptophysin
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88. Seiz M, Tuettenberg J, Meyer J, Essig M, Schmieder K, Mawrin C, von Deimling A, Hartmann C: Detection of IDH1 mutations in gliomatosis cerebri, but only in tumors with additional solid component: evidence for molecular subtypes. Acta Neuropathol; 2010 Aug;120(2):261-7
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  • [Title] Detection of IDH1 mutations in gliomatosis cerebri, but only in tumors with additional solid component: evidence for molecular subtypes.
  • The current WHO classification of brain tumors defines gliomatosis cerebri (GC) as an extensively infiltrating astrocytic glioma involving at least three cerebral lobes.
  • Recent reports showed IDH1 mutations in astrocytic and oligodendroglial tumors WHO grades II and III and in secondary glioblastomas with a frequency of up to 90%, whereas IDH1 mutations occurred in only 5% of primary glioblastomas.
  • We identified IDH1 mutations in 10/24 (42%) cases, which also included a solid tumor portion (type 2 GC), but not in 11 "classical" cases without solid tumor mass (type 1 GC).
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / pathology. Isocitrate Dehydrogenase / genetics. Mutation / genetics. Neoplasms, Neuroepithelial / genetics. Neoplasms, Neuroepithelial / pathology
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Arginine / genetics. Astrocytoma / secondary. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. DNA Mutational Analysis. Female. Histidine / genetics. Humans. In Situ Hybridization, Fluorescence / methods. Magnetic Resonance Imaging / methods. Male. Middle Aged. Oligodendroglioma / secondary. Polymorphism, Single Nucleotide / genetics. Tumor Suppressor Protein p53 / genetics. Tumor Suppressor Protein p53 / metabolism


89. Scheie D, Andresen PA, Cvancarova M, Bø AS, Helseth E, Skullerud K, Beiske K: Fluorescence in situ hybridization (FISH) on touch preparations: a reliable method for detecting loss of heterozygosity at 1p and 19q in oligodendroglial tumors. Am J Surg Pathol; 2006 Jul;30(7):828-37
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  • [Title] Fluorescence in situ hybridization (FISH) on touch preparations: a reliable method for detecting loss of heterozygosity at 1p and 19q in oligodendroglial tumors.
  • Combined loss of heterozygosity (LOH) on 1p and 19q is reported in 50% to 90% of oligodendroglial tumors and has emerged as a strong and favorable prognostic factor.
  • The aim of this study was to evaluate the reliability of FISH to predict LOH at 1p and 19q when performed on touch preparations from 40 oligodendroglial tumors, even if the majority of the nuclei showed chromosomal imbalance.
  • Under these conditions, even a dominant population of nuclei showing FISH-imbalance represented an LOH status in the tumor cells.
  • [MeSH-minor] Adult. Aged. Cell Count. DNA, Neoplasm / analysis. Humans. Middle Aged. Polymerase Chain Reaction. Reproducibility of Results

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  • (PMID = 16819324.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Comparative Study; Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / DNA, Neoplasm
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90. Park S, Suh YL, Nam DH, Kim ST: Gliomatosis cerebri: clinicopathologic study of 33 cases and comparison of mass forming and diffuse types. Clin Neuropathol; 2009 Mar-Apr;28(2):73-82
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  • OBJECTIVE: Gliomatosis cerebri (GC) is defined as a diffuse neoplastic glial cell infiltration of the brain with the preservation of anatomical architecture and the sparing of neurons and can be classified into Type 1 (diffuse) and Type 2 (mass forming) GCs macroscopically.
  • METHODS: Clinical information included patients' age, sex, tumor extent, treatment modality and survival.
  • Pathologic features included the amount of rod cells and cytologic anaplasia such as multinucleated tumor giant cells, endothelial cell proliferation, or mitosis.
  • Immunohistochemical results demonstrated that the infiltrating tumor cells were undifferentiated cells with astrocytic or oligodendroglial differentiation.
  • [MeSH-major] Brain / pathology. Neoplasms, Neuroepithelial / pathology. Neoplasms, Neuroepithelial / physiopathology
  • [MeSH-minor] Adult. Anaplasia. Astrocytes / pathology. Astrocytes / physiology. Cell Proliferation. Endothelial Cells / pathology. Female. Giant Cells / pathology. Glial Fibrillary Acidic Protein / metabolism. Humans. Immunohistochemistry. Ki-67 Antigen / metabolism. Magnetic Resonance Imaging. Male. Middle Aged. Oligodendroglia / pathology. Oligodendroglia / physiology. Survival Analysis. Tumor Suppressor Protein p53 / metabolism

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  • (PMID = 19353837.001).
  • [ISSN] 0722-5091
  • [Journal-full-title] Clinical neuropathology
  • [ISO-abbreviation] Clin. Neuropathol.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Glial Fibrillary Acidic Protein; 0 / Ki-67 Antigen; 0 / Tumor Suppressor Protein p53
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91. Tanaka Y, Yokoo H, Komori T, Makita Y, Ishizawa T, Hirose T, Ebato M, Shibahara J, Tsukayama C, Shibuya M, Nakazato Y: A distinct pattern of Olig2-positive cellular distribution in papillary glioneuronal tumors: a manifestation of the oligodendroglial phenotype? Acta Neuropathol; 2005 Jul;110(1):39-47
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  • [Title] A distinct pattern of Olig2-positive cellular distribution in papillary glioneuronal tumors: a manifestation of the oligodendroglial phenotype?
  • Mixed neuronal-glial tumors of the central nervous system display a wide spectrum of differentiation.
  • Among them, the papillary glioneuronal tumor (PGNT) is characterized by pseudopapillary structures composed of astroglial cells covering hyalinized vessels, and by neurocytic, ganglioid and ganglion cells.
  • This study disclosed an additional cellular component of PGNT that is characterized by Olig2 positivity, suggestive of oligodendroglial phenotype, and the results also encourage us to investigate oligodendroglial participation in various glioneuronal tumors.
  • [MeSH-major] Biomarkers, Tumor / analysis. Brain Neoplasms / metabolism. Glioma / metabolism. Nerve Tissue Proteins / metabolism
  • [MeSH-minor] Adolescent. Adult. Aged. Astrocytes / metabolism. Astrocytes / pathology. Basic Helix-Loop-Helix Transcription Factors. Female. Glial Fibrillary Acidic Protein / metabolism. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Male. Neurons / metabolism. Neurons / pathology

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  • (PMID = 15906048.001).
  • [ISSN] 0001-6322
  • [Journal-full-title] Acta neuropathologica
  • [ISO-abbreviation] Acta Neuropathol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Germany
  • [Chemical-registry-number] 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / Biomarkers, Tumor; 0 / Glial Fibrillary Acidic Protein; 0 / Nerve Tissue Proteins; 0 / OLIG2 protein, human
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92. Whitmore RG, Krejza J, Kapoor GS, Huse J, Woo JH, Bloom S, Lopinto J, Wolf RL, Judy K, Rosenfeld MR, Biegel JA, Melhem ER, O'Rourke DM: Prediction of oligodendroglial tumor subtype and grade using perfusion weighted magnetic resonance imaging. J Neurosurg; 2007 Sep;107(3):600-9
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  • [Title] Prediction of oligodendroglial tumor subtype and grade using perfusion weighted magnetic resonance imaging.
  • Perfusion weighted magnetic resonance (MR) imaging allows for noninvasive determination of relative tumor blood volume (rTBV) and has been used to predict the grade of astrocytic neoplasms.
  • The aim of this study was to use perfusion weighted MR imaging to predict tumor grade and cytogenetic profile in oligodendroglial neoplasms.
  • METHODS: Thirty patients with oligodendroglial neoplasms who underwent preoperative perfusion MR imaging were retrospectively identified.
  • Tumors were classified by histopathological grade and stratified into two cytogenetic groups: 1p or 1p and 19q loss of heterozygosity (LOH) (Group 1), and 19q LOH only on intact alleles (Group 2).
  • Tumor blood volume was calculated in relation to contralateral white matter.
  • Multivariate logistic regression analysis was used to develop predictive models of cytogenetic profile and tumor grade.
  • CONCLUSIONS: Oligodendroglial classification models derived from advanced imaging will improve the accuracy of tumor grading, provide prognostic information, and have potential to influence treatment decisions.
  • [MeSH-major] Brain Neoplasms / genetics. Brain Neoplasms / pathology. Loss of Heterozygosity / genetics. Magnetic Resonance Angiography. Oligodendroglioma / genetics. Oligodendroglioma / pathology
  • [MeSH-minor] Adult. Aged. Blood Volume. Female. Humans. Male. Middle Aged. Predictive Value of Tests. Retrospective Studies. Tumor Burden

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  • (PMID = 17886561.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] eng
  • [Grant] United States / NCI NIH HHS / CA / R01 CA-90586
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
  • [Publication-country] United States
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93. Tejada S, Lobo MV, García-Villanueva M, Sacristán S, Pérez-Morgado MI, Salinas M, Martín ME: Eukaryotic initiation factors (eIF) 2alpha and 4E expression, localization, and phosphorylation in brain tumors. J Histochem Cytochem; 2009 May;57(5):503-12
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  • [Title] Eukaryotic initiation factors (eIF) 2alpha and 4E expression, localization, and phosphorylation in brain tumors.
  • One or both of these factors are often overexpressed in several types of cancer cells; however, no data are available at present regarding eIF4E and eIF2alpha levels in brain tumors.
  • In this study, we analyzed the expression, subcellular localization and phosphorylation states of eIF4E and eIF2alpha in 64 brain tumors (26 meningiomas, 16 oligodendroglial tumors, and 22 astrocytomas) and investigated the correlation with the expression of MIB-1, p53, and cyclin D1 proteins as well.
  • There are significant differences in the phosphorylated eIF4E levels between the tumors studied, being the highest in meningiomas and the lowest in the oligodendroglial tumors.
  • Relative to subcellular localization, eIF4E is frequently found in the nucleus of the oligodendroglial tumors and rarely in the same compartment of the meningiomas, whereas eIF2alpha showed an inverse pattern.
  • The different expression, phosphorylation, or/and subcellular distribution of eIF2alpha and eIF4E within the brain types of tumors studied could indicate that different pathways are activated for promoting cell cycle proliferation, for instance, leading to increased cyclin D1 expression.
  • [MeSH-major] Brain Neoplasms / metabolism. Eukaryotic Initiation Factor-2 / metabolism. Eukaryotic Initiation Factor-4E / metabolism
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Biomarkers, Tumor / metabolism. Cell Proliferation. Cyclin D1 / metabolism. Female. Humans. Ki-67 Antigen / metabolism. Male. Middle Aged. Phosphorylation. Tumor Suppressor Protein p53 / metabolism. Young Adult

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  • (PMID = 19188486.001).
  • [ISSN] 0022-1554
  • [Journal-full-title] The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society
  • [ISO-abbreviation] J. Histochem. Cytochem.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Eukaryotic Initiation Factor-2; 0 / Eukaryotic Initiation Factor-4E; 0 / Ki-67 Antigen; 0 / Tumor Suppressor Protein p53; 136601-57-5 / Cyclin D1
  • [Other-IDs] NLM/ PMC2675073
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94. Rodriguez FJ, Scheithauer BW, Jenkins R, Burger PC, Rudzinskiy P, Vlodavsky E, Schooley A, Landolfi J: Gliosarcoma arising in oligodendroglial tumors ("oligosarcoma"): a clinicopathologic study. Am J Surg Pathol; 2007 Mar;31(3):351-62
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Gliosarcoma arising in oligodendroglial tumors ("oligosarcoma"): a clinicopathologic study.
  • Gliosarcomas are morphologically biphasic tumors composed of glial and sarcomatous elements.
  • Only rare examples of gliosarcoma with oligodendroglial components have been reported.
  • Seven patients with oligodendroglial tumors and a sarcomatous component were identified.
  • At first resection, the tumors included grade II oligodendroglioma (n=3), grade III oligodendroglioma (n=1), grade II oligoastrocytoma (n=1), and grade III oligoastrocytoma (n=2).
  • The sarcomatous component developed in recurrent/progressive tumors in 6 cases but was a focal finding at first tumor resection in 1 and included fibrosarcoma (n=5), leiomyosarcoma (n=1), or pleomorphic myogenic sarcoma (n=1).
  • Rhabdoid change was a focal finding in the sarcomatous component of 1 tumor.
  • Gliosarcomas with oligodendroglial elements are rare.
  • [MeSH-major] Brain Neoplasms / pathology. Gliosarcoma / pathology. Neoplasms, Second Primary / pathology. Oligodendroglioma / pathology
  • [MeSH-minor] Adult. Aged. Biomarkers, Tumor / analysis. Brain / surgery. Chromosome Deletion. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Combined Modality Therapy. Fatal Outcome. Female. Humans. Immunohistochemistry. In Situ Hybridization, Fluorescence. Male. Middle Aged. Neoplasm Recurrence, Local. Neoplasm Staging

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  • (PMID = 17325476.001).
  • [ISSN] 0147-5185
  • [Journal-full-title] The American journal of surgical pathology
  • [ISO-abbreviation] Am. J. Surg. Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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95. Ichimura K, Pearson DM, Kocialkowski S, Bäcklund LM, Chan R, Jones DT, Collins VP: IDH1 mutations are present in the majority of common adult gliomas but rare in primary glioblastomas. Neuro Oncol; 2009 Aug;11(4):341-7
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  • [Title] IDH1 mutations are present in the majority of common adult gliomas but rare in primary glioblastomas.
  • We screened exon 4 of the gene isocitrate dehydrogenase 1 (NADP+), soluble (IDH1) for mutations in 596 primary intracranial tumors of all major types.
  • Codon 132 mutation was seen in 54% of astrocytomas and 65% of oligodendroglial tumors but in only 6% of glioblastomas (3% of primary and 50% of secondary glioblastomas).
  • There were no mutations in any other type of tumor studied.
  • While mutations in the tumor protein p53 gene (TP53) and total 1p/19q deletions were mutually exclusive, IDH1 mutations were strongly correlated with these genetic abnormalities.
  • The data indicate that IDH1 mutation combined with either TP53 mutation or total 1p/19q loss is a frequent and early change in the majority of oligodendroglial tumors, diffuse astrocytomas, anaplastic astrocytomas, and secondary glioblastomas but not in primary glioblastomas.
  • [MeSH-major] Brain Neoplasms / genetics. Glioblastoma / genetics. Isocitrate Dehydrogenase / genetics. Mutation / genetics. Oligodendroglioma / genetics
  • [MeSH-minor] Adult. Biomarkers, Tumor / genetics. Chromosomes, Human, Pair 1 / genetics. Chromosomes, Human, Pair 19 / genetics. Comparative Genomic Hybridization. Exons / genetics. Genotype. Humans. Loss of Heterozygosity. Prognosis. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 19435942.001).
  • [ISSN] 1522-8517
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] eng
  • [Grant] United Kingdom / Cancer Research UK / / A6618
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / TP53 protein, human; 0 / Tumor Suppressor Protein p53; EC 1.1.1.41 / Isocitrate Dehydrogenase
  • [Other-IDs] NLM/ PMC2743214; NLM/ UKMS28703
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96. Rhee W, Ray S, Yokoo H, Hoane ME, Lee CC, Mikheev AM, Horner PJ, Rostomily RC: Quantitative analysis of mitotic Olig2 cells in adult human brain and gliomas: implications for glioma histogenesis and biology. Glia; 2009 Apr 1;57(5):510-23
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  • [Title] Quantitative analysis of mitotic Olig2 cells in adult human brain and gliomas: implications for glioma histogenesis and biology.
  • The capacity of adult human glial progenitor cells (AGPs), to proliferate and undergo multipotent differentiation, positions them as ideal candidate cells of origin for human gliomas.
  • To investigate this potential role we identified AGPs as mitotically active Olig2 cells in nonneoplastic adult human brain and gliomas.
  • Extrapolating from a mean Olig2/Mib-1 labeling index (LI) of 52% and total cell number of 100 billion, we estimated the overall prevalence of mitotic Olig2 AGPs in nonneoplastic human brain parenchyma at 10 million.
  • The vast majority of mitotic cells in Grade II and Grade III gliomas of all histologic subtypes expressed Olig2 (mean LI 75%) but rarely S100B (LI 0.6%), identifying the Olig2 cell as a distinct contributor to the proliferating cell population of human gliomas of both oligodendroglial and astrocytic lineages.
  • The novel framework provided by this quantitative and comparative analysis supports future studies to examine the histogenetic role of Olig2 AGPs in adult gliomas, their potential contribution to the tumor stroma and the molecular role of Olig2 in glioma pathogenesis.

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  • [Copyright] (c) 2008 Wiley-Liss, Inc.
  • (PMID = 18837053.001).
  • [ISSN] 1098-1136
  • [Journal-full-title] Glia
  • [ISO-abbreviation] Glia
  • [Language] ENG
  • [Grant] United States / NINDS NIH HHS / NS / T32 NS007144; United States / NINDS NIH HHS / NS / T32 NS007144-25; United States / NINDS NIH HHS / NS / T32 NS007144-28; United States / NINDS NIH HHS / NS / T32 NS 0007144
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antibodies, Antinuclear; 0 / Antibodies, Monoclonal; 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / MIB-1 antibody; 0 / Nerve Growth Factors; 0 / Nerve Tissue Proteins; 0 / OLIG2 protein, human; 0 / S100 Calcium Binding Protein beta Subunit; 0 / S100 Proteins; 0 / S100B protein, human
  • [Other-IDs] NLM/ NIHMS77469; NLM/ PMC4415884
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97. Tanaka A: Imaging diagnosis and fundamental knowledge of common brain tumors in adults. Radiat Med; 2006 Jul;24(6):482-92
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  • [Title] Imaging diagnosis and fundamental knowledge of common brain tumors in adults.
  • The most common primary brain tumors in Japanese adults are meningiomas, gliomas, pituitary adenomas, and schwannomas, which together account for 84.0% of all primary brain tumors.
  • The typical imaging findings of these tumors are well known by radiologists; therefore, the clinical and pathological issues, including terminology, genetics, and relation to hormones are discussed in this article.
  • The molecular genetic analysis of brain tumors has recently become important.
  • For instance, genetic analysis is important for differentiating oligodendroglial tumors from astrocytic tumors, and the gene mutation predicts response to chemotherapy for anaplastic oligodendrogliomas.
  • Background factors such as hormones, history of cranial irradiation, and medications influence oncogenesis, tumor growth, and tumor appearances as seen by imaging modalities.
  • [MeSH-major] Brain Neoplasms / diagnosis. Magnetic Resonance Imaging. Tomography, X-Ray Computed
  • [MeSH-minor] Adult. Glioma / diagnosis. Humans. Image Processing, Computer-Assisted. Japan / epidemiology. Meningioma / diagnosis. Neurilemmoma / diagnosis. Pituitary Neoplasms / diagnosis

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  • (PMID = 16958433.001).
  • [ISSN] 0288-2043
  • [Journal-full-title] Radiation medicine
  • [ISO-abbreviation] Radiat Med
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Japan
  • [Number-of-references] 31
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98. Perry A, Burton SS, Fuller GN, Robinson CA, Palmer CA, Resch L, Bigio EH, Gujrati M, Rosenblum MK: Oligodendroglial neoplasms with ganglioglioma-like maturation: a diagnostic pitfall. Acta Neuropathol; 2010 Aug;120(2):237-52
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  • [Title] Oligodendroglial neoplasms with ganglioglioma-like maturation: a diagnostic pitfall.
  • Although oligodendroglial neoplasms are traditionally considered purely glial, increasing evidence suggests that they are capable of neuronal or neurocytic differentiation.
  • Herein, we report seven examples where the primary differential diagnosis was a ganglioglioma with an oligodendroglial component.
  • In contrast to classic ganglioglioma, however, cases lacked eosinophilic granular bodies and CD34-positive tumor cells.
  • We conclude that GGLF represents yet another form of neuronal differentiation in oligodendroglial neoplasms.
  • [MeSH-major] Brain Neoplasms / diagnosis. Ganglioglioma / diagnosis. Oligodendroglioma / diagnosis
  • [MeSH-minor] Adult. Chromosome Deletion. Chromosomes, Human, Pair 1. Chromosomes, Human, Pair 19. Female. Glial Fibrillary Acidic Protein / metabolism. Humans. In Situ Hybridization, Fluorescence. Magnetic Resonance Imaging / methods. Male. Middle Aged. Neurofilament Proteins / metabolism. Retrospective Studies