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1. Rao SA, Santosh V, Somasundaram K: Genome-wide expression profiling identifies deregulated miRNAs in malignant astrocytoma. Mod Pathol; 2010 Oct;23(10):1404-17
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Genome-wide expression profiling identifies deregulated miRNAs in malignant astrocytoma.
  • Malignant astrocytoma includes anaplastic astrocytoma (grade III) and glioblastoma (grade IV).
  • Among them, glioblastoma is the most common primary brain tumor with dismal responses to all therapeutic modalities.
  • We performed a large-scale, genome-wide microRNA (miRNA) (n=756) expression profiling of 26 glioblastoma, 13 anaplastic astrocytoma and 7 normal brain samples with an aim to find deregulated miRNA in malignant astrocytoma.
  • More importantly, we identified a most discriminatory 23-miRNA expression signature, by using PAM, which precisely distinguished glioblastoma from anaplastic astrocytoma with an accuracy of 95%.
  • The differential expression pattern of nine miRNAs was further validated by real-time RT-PCR on an independent set of malignant astrocytomas (n=72) and normal samples (n=7).
  • Thus we have identified the miRNA expression signature for malignant astrocytoma, in particular glioblastoma, and showed the miRNA involvement and their importance in astrocytoma development.
  • [MeSH-major] Astrocytoma / genetics. Biomarkers, Tumor / genetics. Brain Neoplasms / genetics. MicroRNAs / genetics

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  • (PMID = 20711171.001).
  • [ISSN] 1530-0285
  • [Journal-full-title] Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc
  • [ISO-abbreviation] Mod. 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 / MicroRNAs
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2. Khwaja FW, Duke-Cohan JS, Brat DJ, Van Meir EG: Attractin is elevated in the cerebrospinal fluid of patients with malignant astrocytoma and mediates glioma cell migration. Clin Cancer Res; 2006 Nov 1;12(21):6331-6
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  • [Title] Attractin is elevated in the cerebrospinal fluid of patients with malignant astrocytoma and mediates glioma cell migration.
  • The goal of our study was to find reliable markers that could be used for disease monitoring as well as to identify new targets for the therapeutic intervention for malignant astrocytoma (WHO grades 3 and 4).
  • EXPERIMENTAL DESIGN: We employed proteomic techniques to identify secreted proteins in the cerebrospinal fluid that were specific to patients with malignant astrocytoma.
  • RESULTS: Among 60 cerebrospinal fluid samples of patients with various central nervous system diseases, attractin was consistently found to be elevated in the samples of patients with malignant astrocytoma.
  • To independently validate these results, we examined attractin expression in a new set of 108 normal and tumoral brain tissue specimens and found elevated expression in 97% of malignant astrocytomas, with the highest levels in grade 4 tumors.
  • Using immunohistochemistry, we further showed that attractin is produced and secreted by the tumor cells.
  • Finally, we showed that cerebrospinal fluid from brain tumor patients induces glioma cell migration and that attractin is largely responsible for this promigratory activity.
  • CONCLUSIONS: Our results find attractin to be a reliable secreted marker for high-grade gliomas.
  • Additionally, our migration studies suggest that it may be an important mediator of tumor invasiveness, and thus, a potential target in future therapies.
  • [MeSH-major] Astrocytoma / cerebrospinal fluid. Brain Neoplasms / cerebrospinal fluid. Cell Movement / physiology. Glioma / cerebrospinal fluid. Membrane Proteins / cerebrospinal fluid
  • [MeSH-minor] Blotting, Western. Electrophoresis, Gel, Two-Dimensional. Humans. Immunohistochemistry. Neoplasm Invasiveness

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  • (PMID = 17085642.001).
  • [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 / CA 86335
  • [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 / ATRN protein, human; 0 / Membrane Proteins
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3. Marsh J, Mukherjee P, Seyfried TN: Drug/diet synergy for managing malignant astrocytoma in mice: 2-deoxy-D-glucose and the restricted ketogenic diet. Nutr Metab (Lond); 2008 Nov 25;5:33
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  • [Title] Drug/diet synergy for managing malignant astrocytoma in mice: 2-deoxy-D-glucose and the restricted ketogenic diet.
  • BACKGROUND: Astrocytomas are largely dependent on glycolysis to satisfy their bioenergetic requirements for growth and survival.
  • Therapies that target glycolysis can potentially manage astrocytoma growth and progression.
  • Dietary restriction of the high fat/low carbohydrate ketogenic diet (KD-R) reduces glycolysis and is effective in managing experimental mouse and human astrocytomas.
  • The goal here was to determine if low doses of 2-DG could act synergistically with the KD-R to better manage growth of the CT-2A malignant mouse astrocytoma.
  • METHODS: The therapeutic effect of a KD-R supplemented with a low dose of 2-DG (25 mg/kg) was examined in adult C57BL/6J mice bearing the syngeneic CT-2A malignant astrocytoma grown orthotopically.
  • Mice were fed the standard unrestricted diet for the first 3 days after tumor implantation prior to their separation into one of four diet groups fed either a standard rodent diet in unrestricted amounts (SD-UR) or a KD-R with or without 2-DG for 10 days.
  • 2-DG was initiated 6 days after tumor implantation and was continued for 7 days.
  • RESULTS: Energy intake, body weights, and CT-2A tumor weights were similar in the SD-UR and the SD-UR+2-2DG mouse groups over the dietary treatment period (days 3-13).
  • Tumor weights were about 48% and 80% lower in the KD-R and in the KD-R+2-DG groups, respectively, than in the SD-UR group.
  • CONCLUSION: Astrocytoma growth was reduced more in the KD-R mouse group supplemented with 2-DG than in the mouse groups receiving either dietary restriction or 2-DG alone, indicating a synergistic interaction between the drug and the diet.
  • The results suggest that management of malignant astrocytoma with restricted ketogenic diets could be enhanced when combined with drugs that inhibit glycolysis.

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  • (PMID = 19032781.001).
  • [ISSN] 1743-7075
  • [Journal-full-title] Nutrition & metabolism
  • [ISO-abbreviation] Nutr Metab (Lond)
  • [Language] ENG
  • [Grant] United States / NCI NIH HHS / CA / R01 CA102135; United States / NINDS NIH HHS / NS / R01 NS055195; United States / NINDS NIH HHS / NS / R56 NS055195
  • [Publication-type] Journal Article
  • [Publication-country] England
  • [Other-IDs] NLM/ PMC2607273
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4. Nano R, Capelli E, Facoetti A, Benericetti E: Immunobiological and experimental aspects of malignant astrocytoma. Anticancer Res; 2009 Jul;29(7):2461-5
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Immunobiological and experimental aspects of malignant astrocytoma.
  • Starting from 1992, the goal of our studies was to obtain new biological data on malignant astrocytomas to better understand the basic biology of the tumour and these are reviewed here.
  • [MeSH-major] Astrocytoma / immunology. Brain Neoplasms / immunology

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  • (PMID = 19596914.001).
  • [ISSN] 1791-7530
  • [Journal-full-title] Anticancer research
  • [ISO-abbreviation] Anticancer Res.
  • [Language] eng
  • [Publication-type] Journal Article; Review
  • [Publication-country] Greece
  • [Chemical-registry-number] 0 / Interleukin-2
  • [Number-of-references] 51
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5. Khalatbari M, Borghei-Razavi H, Shayanfar N, Behzadi AH, Sepehrnia A: Collision tumor of meningioma and malignant astrocytoma. Pediatr Neurosurg; 2010;46(5):357-61
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  • [Title] Collision tumor of meningioma and malignant astrocytoma.
  • The pathology of tumors reported collision tumors composed of meningioma and malignant astrocytoma.
  • [MeSH-major] Astrocytoma / surgery. Brain Neoplasms / surgery. Meningeal Neoplasms / surgery. Meningioma / surgery

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  • [Copyright] Copyright © 2011 S. Karger AG, Basel.
  • (PMID = 21389747.001).
  • [ISSN] 1423-0305
  • [Journal-full-title] Pediatric neurosurgery
  • [ISO-abbreviation] Pediatr Neurosurg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Switzerland
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6. Sathornsumetee S, Cao Y, Marcello JE, Herndon JE 2nd, McLendon RE, Desjardins A, Friedman HS, Dewhirst MW, Vredenburgh JJ, Rich JN: Tumor angiogenic and hypoxic profiles predict radiographic response and survival in malignant astrocytoma patients treated with bevacizumab and irinotecan. J Clin Oncol; 2008 Jan 10;26(2):271-8
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  • [Title] Tumor angiogenic and hypoxic profiles predict radiographic response and survival in malignant astrocytoma patients treated with bevacizumab and irinotecan.
  • PURPOSE: The combination of a vascular endothelial growth factor (VEGF) -neutralizing antibody, bevacizumab, and irinotecan is associated with high radiographic response rates and improved survival outcomes in patients with recurrent malignant gliomas.
  • The aim of these retrospective studies was to evaluate tumor vascularity and expression of components of the VEGF pathway and hypoxic responses as predictive markers for radiographic response and survival benefit from the bevacizumab and irinotecan therapy.
  • PATIENTS AND METHODS: In a phase II trial, 60 patients with recurrent malignant astrocytomas were treated with bevacizumab and irinotecan.
  • Tumor specimens collected at the time of diagnosis were available for further pathologic studies in 45 patients (75%).
  • RESULTS: Of 45 patients, 27 patients had glioblastoma multiforme, and 18 patients had anaplastic astrocytoma.
  • CONCLUSION: In this patient cohort, tumor expression levels of VEGF, the molecular target of bevacizumab, were associated with radiographic response, and the upstream promoter of angiogenesis, hypoxia, determined survival outcome, as measured from treatment initiation.
  • [MeSH-major] Antineoplastic Combined Chemotherapy Protocols / therapeutic use. Astrocytoma / drug therapy. Brain Neoplasms / drug therapy
  • [MeSH-minor] Adolescent. Adult. Aged. Antibodies, Monoclonal / administration & dosage. Antibodies, Monoclonal, Humanized. Bevacizumab. Biomarkers, Tumor / analysis. Camptothecin / administration & dosage. Camptothecin / analogs & derivatives. Female. Humans. Hypoxia. Male. Middle Aged. Neovascularization, Pathologic. Proportional Hazards Models. Radiography. Retrospective Studies. Survival Analysis. Treatment Outcome. Vascular Endothelial Growth Factor A / analysis

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  • (PMID = 18182667.001).
  • [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
  • [Grant] United States / NINDS NIH HHS / NS / NS054276; United States / NCI NIH HHS / CA / R01 CA116659; United States / NCI NIH HHS / CA / CA116659; United States / NINDS NIH HHS / NS / K02 NS047409; United States / NINDS NIH HHS / NS / NS047409; United States / NINDS NIH HHS / NS / R01 NS054276
  • [Publication-type] Clinical Trial, Phase II; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antibodies, Monoclonal; 0 / Antibodies, Monoclonal, Humanized; 0 / Biomarkers, Tumor; 0 / Vascular Endothelial Growth Factor A; 0H43101T0J / irinotecan; 2S9ZZM9Q9V / Bevacizumab; XT3Z54Z28A / Camptothecin
  • [Other-IDs] NLM/ NIHMS508913; NLM/ PMC3930173
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7. Brandes AA, Nicolardi L, Tosoni A, Gardiman M, Iuzzolino P, Ghimenton C, Reni M, Rotilio A, Sotti G, Ermani M: Survival following adjuvant PCV or temozolomide for anaplastic astrocytoma. Neuro Oncol; 2006 Jul;8(3):253-60
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  • [Title] Survival following adjuvant PCV or temozolomide for anaplastic astrocytoma.
  • We compared survival in patients with anaplastic astrocytoma (AA) treated with adjuvant procarbazine, lomustine, and vincristine (PCV) with survival in patients treated with temozolomide.
  • The following prognostic factors were taken into account: patient age, extent of resection, performance status, presence of contrast enhancement in presurgical imaging, and type of adjuvant treatment.
  • Type of adjuvant chemotherapy was not a significant factor, either for progression-free survival or for overall survival.
  • [MeSH-major] Adjuvants, Pharmaceutic / administration & dosage. Antineoplastic Combined Chemotherapy Protocols / administration & dosage. Astrocytoma / drug therapy. Astrocytoma / mortality. Dacarbazine / analogs & derivatives

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  • (PMID = 16723632.001).
  • [ISSN] 1522-8517
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Adjuvants, Pharmaceutic; 35S93Y190K / Procarbazine; 5J49Q6B70F / Vincristine; 7BRF0Z81KG / Lomustine; 7GR28W0FJI / Dacarbazine; 85622-93-1 / temozolomide; PCV protocol
  • [Other-IDs] NLM/ PMC1871946
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8. Jang SY, Kong MH, Song KY, Frazee JG: Intracranial Metastases of Cervical Intramedullary Low-Grade Astrocytoma without Malignant Transformation in Adult. J Korean Neurosurg Soc; 2009 Jun;45(6):381-5

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Intracranial Metastases of Cervical Intramedullary Low-Grade Astrocytoma without Malignant Transformation in Adult.
  • The first case of intracranial metastases of a cervical intramedullary low-grade astrocytoma without malignant transformation in adult is presented in this report.
  • Seven years ago, a 45 year-old male patient underwent biopsy to confirm pathologic characteristics and received craniocervical radiation and chemotherapy for a grade II astrocytoma in the cervical spinal cord.
  • The tumor at the cervical and brain lesions was classified as an astrocytoma (WHO grade II).
  • When a patient with low-grade astrocytoma in the spinal cord has new cranial symptoms after surgery, radiaton, and chemotherapy, the possibility of its metastasis should be suspected because it can spread to the intracranial cavity even without malignant transformation as shown in this case.

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  • (PMID = 19609424.001).
  • [ISSN] 2005-3711
  • [Journal-full-title] Journal of Korean Neurosurgical Society
  • [ISO-abbreviation] J Korean Neurosurg Soc
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Korea (South)
  • [Other-IDs] NLM/ PMC2711238
  • [Keywords] NOTNLM ; Astrocytoma / Cranial metastases / Intramedullary / Spinal cord tumor
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9. Momota H, Narita Y, Matsushita Y, Miyakita Y, Shibui S: p53 abnormality and tumor invasion in patients with malignant astrocytoma. Brain Tumor Pathol; 2010 Oct;27(2):95-101
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] p53 abnormality and tumor invasion in patients with malignant astrocytoma.
  • Malignant astrocytomas are characterized by diffusely infiltrating nature, and the abnormality of p53 is a cytogenetic hallmark of astrocytic tumors.
  • To elucidate the relationship between p53 abnormality and invasiveness of the tumors, we studied mutation and protein expression of p53 in 48 consecutive patients with malignant astrocytoma (14 anaplastic astrocytomas and 34 glioblastoma multiformes).
  • The tumors were classified into three categories according to the features of magnetic resonance imaging, and 5, 7, and 36 tumors were classified into diffuse, multiple, and single type, respectively.
  • We then examined how these tumor types correlate with MIB-1 staining index, TP53 gene mutation, and p53 protein expression.
  • Furthermore, diffuse- and multiple-type tumors were significantly correlated with poor progression-free survival, whereas only multiple-type tumors were significantly correlated with poor overall survival.
  • As diffuse and multiple features on imaging modalities represent invasive characteristics of the tumors, p53 abnormalities may affect the invasive and aggressive nature of malignant astrocytomas.
  • [MeSH-major] Astrocytoma / genetics. Astrocytoma / pathology. Brain Neoplasms / genetics. Brain Neoplasms / pathology. Genes, p53 / genetics
  • [MeSH-minor] Adolescent. Adult. Aged. Aged, 80 and over. Child. DNA, Neoplasm / genetics. Female. Glial Fibrillary Acidic Protein / genetics. Glial Fibrillary Acidic Protein / metabolism. Humans. Immunohistochemistry. Male. Middle Aged. Mitotic Index. Mutation / genetics. Mutation / physiology. Neoplasm Invasiveness / genetics. Neoplasm Invasiveness / pathology. Survival Analysis. Tumor Suppressor Protein p53 / genetics. Tumor Suppressor Protein p53 / metabolism. Vascular Endothelial Growth Factor A / metabolism. Young Adult

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  • (PMID = 21046311.001).
  • [ISSN] 1861-387X
  • [Journal-full-title] Brain tumor pathology
  • [ISO-abbreviation] Brain Tumor Pathol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / DNA, Neoplasm; 0 / Glial Fibrillary Acidic Protein; 0 / Tumor Suppressor Protein p53; 0 / Vascular Endothelial Growth Factor A
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10. Ryu HH, Jung S, Sun HS, Jung TY, Jin SG, Jin YH, Kim IY, Jeong YI, Kang SS: Screening for motility-associated genes in malignant astrocytoma cell lines. J Neurooncol; 2007 Apr;82(2):125-31
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Screening for motility-associated genes in malignant astrocytoma cell lines.
  • The most characteristic feature of a malignant astrocytoma is its early and extensive infiltration into adjacent parenchymal structures.
  • We focused on detecting the possible expression changes as the determining factors for malignant astrocytoma's motile ability.
  • These findings suggest that the genes identified may be important for determining high motility in astrocytoma cell lines.
  • These findings may help us understand the molecular invasion mechanism in astrocytomas.
  • [MeSH-major] Astrocytoma / genetics. Biomarkers, Tumor / genetics. Brain Neoplasms / genetics. Cell Movement. Gene Expression Profiling
  • [MeSH-minor] Humans. Reverse Transcriptase Polymerase Chain Reaction. Tumor Cells, Cultured

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  • (PMID = 17048098.001).
  • [ISSN] 0167-594X
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
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11. Walker DG, Laherty R, Tomlinson FH, Chuah T, Schmidt C: Results of a phase I dendritic cell vaccine trial for malignant astrocytoma: potential interaction with adjuvant chemotherapy. J Clin Neurosci; 2008 Feb;15(2):114-21
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Results of a phase I dendritic cell vaccine trial for malignant astrocytoma: potential interaction with adjuvant chemotherapy.
  • Dendritic cell vaccination has been applied to the treatment of a variety of cancers, including malignant astrocytoma.
  • We have treated 13 patients with malignant astrocytoma using dendritic cell vaccination and have shown that this treatment is safe and is likely to be effective in combination with standard adjuvant therapy.
  • [MeSH-major] Astrocytoma / therapy. Brain Neoplasms / therapy. Cancer Vaccines / therapeutic use. Chemotherapy, Adjuvant / methods. Dendritic Cells / immunology. Immunotherapy, Active / methods

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  • (PMID = 18083572.001).
  • [ISSN] 0967-5868
  • [Journal-full-title] Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
  • [ISO-abbreviation] J Clin Neurosci
  • [Language] eng
  • [Publication-type] Clinical Trial, Phase I; Journal Article
  • [Publication-country] Scotland
  • [Chemical-registry-number] 0 / Antigens, CD8; 0 / Cancer Vaccines; EC 3.1.3.48 / Antigens, CD45
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12. Parafiniuk D, Jezewski D, Nowacki P: [Malignant astrocytoma as a recurrance of astrocytoma II WHO after 13 years. Case report and literature review]. Ann Acad Med Stetin; 2010;56(2):45-50
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] [Malignant astrocytoma as a recurrance of astrocytoma II WHO after 13 years. Case report and literature review].
  • Astrocytomas--neroepithelial originated tumors that belong to the big, differential group of tumors, which derive from astrocytic glial.
  • They include slow growing tumors such as fibillary astrocytoma or very malignant glioblastoma multiforme.
  • The case which is being presented is of a forty nine year old woman operated in July 1997 because of a protoplasmic astrocytoma II WHO in the left frontal lobe.
  • Due to this adverse event MRI was ordered and suspicion of tumor recurrence was put forward.
  • Histopathology identified anaplastic astrocytoma III WHO.
  • According to literature, the factors regarding remission time, tumor malignancy and therapeutic aim were analyzed.
  • [MeSH-major] Brain Neoplasms / radiotherapy. Brain Neoplasms / surgery. Neoplasm Recurrence, Local / diagnosis
  • [MeSH-minor] Adult. Astrocytoma. Female. Frontal Lobe. Humans. Reoperation. Seizures / etiology

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  • (PMID = 21473001.001).
  • [ISSN] 1427-440X
  • [Journal-full-title] Annales Academiae Medicae Stetinensis
  • [ISO-abbreviation] Ann Acad Med Stetin
  • [Language] pol
  • [Publication-type] Case Reports; English Abstract; Journal Article; Review
  • [Publication-country] Poland
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13. Matusan-Ilijas K, Behrem S, Jonjic N, Zarkovic K, Lucin K: Osteopontin expression correlates with angiogenesis and survival in malignant astrocytoma. Pathol Oncol Res; 2008 Sep;14(3):293-8
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Osteopontin expression correlates with angiogenesis and survival in malignant astrocytoma.
  • The aim of the study was to analyze the expression of OPN in human astrocytomas and to correlate it with angiogenesis and patients' outcome.
  • Seventy-six human astrocytomas including eight pilocytic astrocytomas (grade I), 10 diffuse astrocytomas (grade II), 8 anaplastic astrocytomas (grade III) and 50 glioblastomas (grade IV) were immunohistochemically stained for OPN protein.
  • Astrocytomas were heterogeneous regarding the OPN expression.
  • Our results indicate the overexpression of OPN protein in astrocytoma cells and suggest the role of OPN in astrocytoma progression and angiogenesis.
  • [MeSH-major] Astrocytoma / blood supply. Astrocytoma / metabolism. Biomarkers, Tumor / metabolism. Brain Neoplasms / blood supply. Brain Neoplasms / metabolism. Neovascularization, Pathologic / metabolism. Osteopontin / metabolism

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  • (PMID = 18493866.001).
  • [ISSN] 1219-4956
  • [Journal-full-title] Pathology oncology research : POR
  • [ISO-abbreviation] Pathol. Oncol. Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 106441-73-0 / Osteopontin
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14. Abacioglu MU, Caglar HB, Yumuk PF, Akgun Z, Atasoy BM, Sengoz M: Efficacy of protracted dose-dense temozolomide (TMZ) in patients with progressive high-grade glioma. J Clin Oncol; 2009 May 20;27(15_suppl):e13018

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Efficacy of protracted dose-dense temozolomide (TMZ) in patients with progressive high-grade glioma.
  • : e13018 Background: The study was aimed to evaluate the efficacy of TMZ on a protracted dose-dense schedule after standard 5-day TMZ regimen in patients with progressive high-grade glioma.
  • METHODS: In this phase II prospective study, patients who had progression on standard 5-day TMZ for recurrence (group 1) or recurrence after concurrent radiotherapy+TMZ and ≥ 2 cycles of adjuvant TMZ (group 2) for high-grade glioma received TMZ 100 mg/m2× 21 q28 days until progression according to MacDonald's criteria.
  • The histopathology was glioblastoma in 18 and grade 3 glioma (anaplastic astrocytoma, anaplastic oligoastrocytoma or anaplastic oligodendroglioma) in 7.
  • Out of 80 cycles received there was no anemia; 5 (6%) grade 1, 8 (10%) grade 2, 2 (3%) grade 3 leucopenia; 1 (1%) grade 1, 2 (3%) grade 2, 1 (1%) grade 3, 1 (1%) grade 4 thrombocytopenia; 9 (11%) grade 1, 7 (9%) grade 2, 32 (40%) grade 3, and 11 (14%) grade 4 lymphopenia.
  • Study was terminated in 2 patients (one with grade 4 thrombocytopenia and the other with grade 4 hepatic toxicity).

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  • (PMID = 27962826.001).
  • [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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15. Karrasch M, Gillespie GY, Braz E, Liechty PG, Nabors LB, Lakeman AD, Palmer CA, Parker JN, Whitley RJ, Markert JM: Treatment of recurrent malignant glioma with G207, a genetically engineered herpes simplex virus-1, followed by irradiation: Phase I study results. J Clin Oncol; 2009 May 20;27(15_suppl):2042

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Treatment of recurrent malignant glioma with G207, a genetically engineered herpes simplex virus-1, followed by irradiation: Phase I study results.
  • Safety and efficacy of intracerebral inoculations of G207 to patients suffering from recurrent malignant gliomas have been demonstrated in previous clinical trials.
  • METHODS: In this phase I clinical trial, a total of 1 x 10<sup>9</sup> plaque forming units (pfu) G207 were administered by five stereotactic injections of 0.2 mL each into regions of recurrent malignant glioma defined by MRI, followed by focal radiation therapy 24 hours post injection.
  • Included patients suffered from inoperable pathologically proven recurrent glioblastoma multiforme (GBM) or anaplastic astrocytoma (AA) which was progressive despite radiotherapy or chemotherapy and failed external beam radiotherapy > 5 Gray prior to study enrolment.
  • The 2 patients with initial PR (1xGBM, 1xAA) were re-treated with G207/Irradiation at time point of tumor recurrence, showing PR one month after re-treatment again.
  • Within persistent areas of tumor, HSV staining was present by using a polyclonal antibody for HSV, indicating intratumoral G207 replication (proof of concept).

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  • (PMID = 27964649.001).
  • [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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16. Simonelli M, Banna G, Navarria P, Di Ieva A, Zucali P, De Vincenzo F, Gaetani P, Condorelli R, Rodriguez Y Baena R, Scorsetti M, Santoro A: Addition of temozolomide to radiotherapy for treatment of newly diagnosed anaplastic gliomas. J Clin Oncol; 2009 May 20;27(15_suppl):e13037

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Addition of temozolomide to radiotherapy for treatment of newly diagnosed anaplastic gliomas.
  • : e13037 Background: Anaplastic astrocytoma (AA), oligodendroglioma (AOD), and oligoastrocytoma (AOA) are rare tumors showing variable outcome due to their histological heterogeneity and different chemo- and radio-sensitivity.
  • Currently, the addition of chemotherapy to radiotherapy (RT) for newly diagnosed anaplastic gliomas is not sustained by available data.
  • We evaluated the addition of temozolomide (TMZ) to radiotherapy for newly diagnosed anaplastic gliomas in terms of tolerability, progression-free survival (PFS), and overall survival (OS).
  • METHODS: Since September 2004, following initial surgery, patients (pts) with histologically confirmed anaplastic glioma, Karnofsky Performance Status (KPS) ≥40, adequate organ function, no prior chemotherapy, were treated with RT to limited fields once daily at 2 Gy per fraction, 5 days a week, for a total of 60 Gy with concomitant TMZ (75 mg/m<sup>2</sup> for 7 days a week) followed by 6 cycles of maintenance TMZ at 200 mg/m<sup>2</sup> on days 1-5 every 28 days.
  • Nine pts (32%) underwent tumor complete resection, 10 partial resection (36%), and 9 (32%) tumor biopsy.
  • Frequent mild toxicities were grade 1-2 nausea/vomiting (17 pts-63%), and grade 1-2 asthenia (8 pts-30%).
  • CONCLUSIONS: The addition of temozolomide to radiation therapy for newly diagnosed anaplastic gliomas is well tolerated and seems active; efficacy needs confirmation in a randomized clinical trial.

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  • (PMID = 27962859.001).
  • [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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17. Herndon J 2nd, Vredenburgh J, Reardon D, Desjardins A, Peters K, Gururangan S, Norfleet J, Friedman A, Bigner D, Friedman HS: Phase I trial of vendetanib and oral etoposide for recurrent malignant gliomas. J Clin Oncol; 2009 May 20;27(15_suppl):e13016

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Phase I trial of vendetanib and oral etoposide for recurrent malignant gliomas.
  • : e13016 Background: Recurrent malignant gliomas have a poor prognosis, with a median survival of 6-15 months, with grade 4 glioblastomas more aggressive than grade 3 anaplastic astrocytomas or oligodendrogliomas.
  • We report a phase I trial of vandetanib in combination with oral etoposide for recurrent malignant glioma.
  • METHODS: Patients with histologically documented recurrent grade 3 or grade 4 malignant glioma were eligible.
  • There was more hematologic toxicity than expected, with 3/6 of the patients enrolled at dose level 1 developing grade 4 neutropenia.

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  • (PMID = 27962830.001).
  • [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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18. Franceschi E, Tosoni A, Ermani M, Spagnolli F, La Torre L, Galzio RJ, Pozzati E, Talacchi A, Benevento F, Brandes AA: Impact of MGMT methylation status on 1p/19q intact anaplastic gliomas. J Clin Oncol; 2009 May 20;27(15_suppl):e13003

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Impact of MGMT methylation status on 1p/19q intact anaplastic gliomas.
  • : e13003 Background: Chromosomes 1p/19q codeletion has been recognized as a prognostic and predictive factor in patients (pts) with grade 3 gliomas.
  • Non-codeleted (intact) anaplastic oligodendroglioma showed a survival comparable to that usually observed in pts with anaplastic astrocytomas; MGMT methylation status, moreover, has been found to be a prognostic factor in glioblastoma and anaplastic gliomas (AG).
  • Histology was anaplastic oligodendroglioma in 17 pts, anaplastic oligoastrocytoma in 20 pts, and anaplastic astrocytoma in 30 pts; all these pts were 1p19q intact and received surgery, RT, and CT.

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  • (PMID = 27962754.001).
  • [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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19. Potthast L, Chowdhary S, Pan E, Yu D, Zhu W, Brem S: The infiltrative, diffuse pattern of recurrence in patients with malignant gliomas treated with bevacizumab. J Clin Oncol; 2009 May 20;27(15_suppl):2057

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] The infiltrative, diffuse pattern of recurrence in patients with malignant gliomas treated with bevacizumab.
  • Histologies included glioblastoma (GB), anaplastic astrocytomas (AA), anaplastic oligodendrogliomas (AO), anaplastic oligoastrocytomas (AOA), and low-grade astrocytomas.
  • It is unclear why the disparity among this subset of patients occurs, however, we hypothesize that this may once again highlight the distinct tumor biology among young glioma patients.

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  • (PMID = 27964663.001).
  • [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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20. Desjardins A, Reardon DA, Gururangan S, Peters K, Threatt S, Friedman A, Friedman H, Vredenburgh J: Phase I trial combining SCH 66336 to temozolomide (TMZ) for patients with grade 3 or 4 malignant gliomas (MG). J Clin Oncol; 2009 May 20;27(15_suppl):e13004

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Phase I trial combining SCH 66336 to temozolomide (TMZ) for patients with grade 3 or 4 malignant gliomas (MG).
  • METHODS: Eligibility included: adult patients with stable or recurrent MG (GBM, anaplastic astrocytoma [AA], anaplastic oligodendroglioma [AO]) previously treated with radiation therapy (RT) and with or without chemotherapy; interval of at least two weeks between prior RT, or four weeks between prior chemotherapy; Karnofsky ≥ 60%; and adequate hematologic, renal and liver function.
  • Dose-limiting toxicities were: deep venous thrombosis (1 grade 3); nausea and vomiting (1 grade 3); diarrhea (1 grade 3); elevated ALT (1 grade 3); elevated creatinine (1 grade 3); and fatigue (1 grade 3).

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  • (PMID = 27962751.001).
  • [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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21. Rudnick JD, Phuphanich S, Chu R, Mazer M, Wang H, Serrano N, Francisco M, Black KL, Wheeler C, Yu J: A phase I trial of surgical resection with biodegradable carmustine (BCNU) wafer placement followed by vaccination with dendritic cells pulsed with tumor lysate for patients with malignant glioma. J Clin Oncol; 2009 May 20;27(15_suppl):2033

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] A phase I trial of surgical resection with biodegradable carmustine (BCNU) wafer placement followed by vaccination with dendritic cells pulsed with tumor lysate for patients with malignant glioma.
  • : 2033 Background: Our prior immunotherapy trials demonstrated efficacy in generating a tumor specific immune response in malignant glioma and the potential for high tumor-specific toxicity and sustained tumoricidal activity.
  • METHODS: We exploited this synergistic effect to maintain a cytotoxic environment around the tumor milieu.
  • Patients with high-grade glioma were eligible after maximal resection with biodegradable carmustine (BCNU) wafer placement.
  • Screening leukapheresis is used to isolate mononuclear cells which are differentiated into dendritic cells, pulsed with tumor lysate, and then 3 intradermal vaccines are administered at 2-week intervals.
  • The histology included 3 newly diagnosed glioblastoma multiforme (GBM), 8 recurrent GBM, 2 newly diagnosed anaplastic astrocytoma (AA), and 2 recurrent AA.
  • Our preliminary data on 15 patients and 39 courses of Dendritic Cell vaccines demonstrate one grade 3 toxicity of fever/chest pain.
  • CONCLUSIONS: This phase I study demonstrates the safety, feasibility of dendritic cell vaccination with biodegradable carmustine (BCNU) wafers with one grade 3 AE.

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  • (PMID = 27964627.001).
  • [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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22. Tosoni A, Franceschi E, Ermani M, Bacci A, Volpin L, Lombardo L, Ravenna G, Pinna G, Poggi R, Brandes AA: MGMT methylation status as a prognostic factor in anaplastic astrocytomas. J Clin Oncol; 2009 May 20;27(15_suppl):2052

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] MGMT methylation status as a prognostic factor in anaplastic astrocytomas.
  • However, further data on the epigenetic feature are needed before its role in rare diseases such as anaplastic astrocytomas (AA) can be established.

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  • (PMID = 27964674.001).
  • [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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23. Reardon DA, Rich JN, Friedman HS, Bigner DD: Recent advances in the treatment of malignant astrocytoma. J Clin Oncol; 2006 Mar 10;24(8):1253-65
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  • [Title] Recent advances in the treatment of malignant astrocytoma.
  • Malignant gliomas, including the most common subtype, glioblastoma multiforme (GBM), are among the most devastating of neoplasms.
  • Limited delivery and tumor heterogeneity are two fundamental factors that have critically hindered therapeutic progress.
  • The simultaneous development of multiple advanced therapies based on specific tumor biology may finally offer glioma patients improved survival.
  • [MeSH-major] Astrocytoma / therapy. Central Nervous System Neoplasms / therapy

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  • (PMID = 16525180.001).
  • [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
  • [Grant] United States / NCI NIH HHS / CA / 1 P20 CA096890; United States / NCI NIH HHS / CA / CA11898; United States / NCRR NIH HHS / RR / MO1 RR 30; United States / NINDS NIH HHS / NS / NS20023
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 7GR28W0FJI / Dacarbazine; 85622-93-1 / temozolomide
  • [Number-of-references] 209
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24. Fernandez A, Karavitaki N, Ansorge O, Fazal-Sanderson V, Wass JA: Acromegaly and anaplastic astrocytoma: coincidence or pathophysiological relation? Pituitary; 2008;11(3):325-30
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  • [Title] Acromegaly and anaplastic astrocytoma: coincidence or pathophysiological relation?
  • Insulin-like growth factor type I (IGF-I) is an important promoter in the tumorigenesis of several extracranial and intracranial neoplasms.
  • In astrocytic-cell tumors, the role of autocrine and paracrine IGF-I expression in enhancing tumoral progression is well established.
  • However, the influence of systemic IGF-I levels on the clinical behavior of astrocytic neoplasms remains an open subject of research.
  • We report the case of a 28-year-old man who presented simultaneously with acromegaly and an anaplastic astrocytoma, which had rapidly progressed from a low-grade astrocytoma.
  • The coexistence of systemic IGF-I hypersecretion with a quick progression in the histopathological grade of the astrocytoma raises the compelling question of whether the clinical behavior of the astrocytic tumor was influenced by the acromegalic status.
  • The role of IGF-I signaling in the pathogenesis of astrocytic-cell tumors and the experience with therapeutic strategies addressing this pathway in astrocytomas are also discussed.
  • [MeSH-major] Acromegaly / complications. Astrocytoma / complications. Brain Neoplasms / complications
  • [MeSH-minor] Adult. Cranial Irradiation. Craniotomy. Disease Progression. Ergolines / therapeutic use. Humans. Insulin-Like Growth Factor I / metabolism. Magnetic Resonance Imaging. Male. Neoplasm Staging. Peptides, Cyclic / therapeutic use. Somatostatin / analogs & derivatives. Somatostatin / therapeutic use. Treatment Outcome. Up-Regulation

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  • (PMID = 18000757.001).
  • [ISSN] 1386-341X
  • [Journal-full-title] Pituitary
  • [ISO-abbreviation] Pituitary
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Ergolines; 0 / Peptides, Cyclic; 0G3DE8943Y / lanreotide; 51110-01-1 / Somatostatin; 67763-96-6 / Insulin-Like Growth Factor I; LL60K9J05T / cabergoline
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25. Llaguno SA, Chen J, Kwon CH, Parada LF: Neural and cancer stem cells in tumor suppressor mouse models of malignant astrocytoma. Cold Spring Harb Symp Quant Biol; 2008;73:421-6
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  • [Title] Neural and cancer stem cells in tumor suppressor mouse models of malignant astrocytoma.
  • Malignant astrocytomas are highly invasive brain tumors that portend poor prognosis and dismal survival.
  • We previously reported tumor suppressor mouse models based on conditional inactivation of human astrocytoma-relevant genes p53, Nf1, and Pten.
  • These mice develop, with full penetrance, varying grades of astrocytic malignancy that recapitulate the human condition histologically and molecularly.
  • Our studies indicate a central role for neural stem cells and stem-cell-like cancer cells in tumor initiation and progression.
  • These mouse models thus represent powerful tools for investigating various aspects of tumor development that otherwise cannot be explored in humans.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Neoplastic Stem Cells / pathology. Neurons / pathology
  • [MeSH-minor] Animals. Disease Models, Animal. Genes, Tumor Suppressor. Humans. Mice. Models, Neurological. Mutation

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  • (PMID = 19022744.001).
  • [ISSN] 1943-4456
  • [Journal-full-title] Cold Spring Harbor symposia on quantitative biology
  • [ISO-abbreviation] Cold Spring Harb. Symp. Quant. Biol.
  • [Language] eng
  • [Grant] United States / NINDS NIH HHS / NS / P50NS05260602
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review
  • [Publication-country] United States
  • [Number-of-references] 43
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26. Jayawardena S, Sooriabalan D, Indulkar S, Kim HH, Matin A, Maini A: Regression of grade III astrocytoma during the treatment of CML with imatinib mesylate. Am J Ther; 2006 Sep-Oct;13(5):458-9
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Regression of grade III astrocytoma during the treatment of CML with imatinib mesylate.
  • Astrocytomas are central nervous system neoplasms, which are derived predominately from astrocytes.
  • On the basis of the histopathologic characteristics astrocytomas are graded from I to IV.
  • The cells that demonstrate the greatest degree of anaplasia are used to determine the histologic grade of the tumor.
  • The mean age of survival are approximately 10 years from the time of diagnosis for pilocystic astrocytomas (World Health Organization grade I), more than 5 years for patients with low-grade diffuse astrocytomas (WHO grade II), 2 to 5 years for those with anaplastic astrocytomas (WHO grade III), and less than 1 year for patients with glioblastoma (WHO grade IV).
  • The treatment is a combination of surgery, radiation, and chemotherapy depending of the grade of astrocytoma.
  • We present a case of 31-year-old man with grade III astrocytoma with subsequent chronic myelogenous leukemia treated with imatinib mesylate as part of his chronic myelogenous leukemia treatment failing to show recurrence of the astrocytoma 10 years after standard treatment for astrocytoma.
  • [MeSH-major] Antineoplastic Agents / therapeutic use. Astrocytoma / drug therapy. Brain Neoplasms / drug therapy. Leukemia, Myeloid, Acute / drug therapy. Piperazines / therapeutic use. Pyrimidines / therapeutic use

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  • (PMID = 16988542.001).
  • [ISSN] 1075-2765
  • [Journal-full-title] American journal of therapeutics
  • [ISO-abbreviation] Am J Ther
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antineoplastic Agents; 0 / Benzamides; 0 / Piperazines; 0 / Pyrimidines; 8A1O1M485B / Imatinib Mesylate
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27. Combs SE, Gutwein S, Thilmann C, Debus J, Schulz-Ertner D: Reirradiation of recurrent WHO grade III astrocytomas using fractionated stereotactic radiotherapy (FSRT). Strahlenther Onkol; 2005 Dec;181(12):768-73
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  • [Title] Reirradiation of recurrent WHO grade III astrocytomas using fractionated stereotactic radiotherapy (FSRT).
  • PURPOSE: To assess the effect of reirradiation in recurrent WHO grade III astrocytomas.
  • PATIENTS AND METHODS: From January 1995 to July 2003, 40 patients with grade III gliomas were treated with fractionated stereotactic reirradiation at the time point of recurrence.
  • No toxicities > CTC grade 2 developed.
  • CONCLUSION: Fractionated stereotactic radiotherapy is well tolerated and effective in patients with recurrent grade III astrocytomas.
  • [MeSH-major] Astrocytoma / mortality. Astrocytoma / surgery. Brain Neoplasms / mortality. Brain Neoplasms / surgery. Neoplasm Recurrence, Local / mortality. Neoplasm Recurrence, Local / surgery. Radiosurgery / statistics & numerical data

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  • (PMID = 16362786.001).
  • [ISSN] 0179-7158
  • [Journal-full-title] Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]
  • [ISO-abbreviation] Strahlenther Onkol
  • [Language] eng
  • [Publication-type] Clinical Trial; Journal Article
  • [Publication-country] Germany
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28. Brehar FM, Ciurea AV, Zarnescu O, Bleotu C, Gorgan RM, Dragu D, Matei L: Infiltrating growing pattern xenografts induced by glioblastoma and anaplastic astrocytoma derived tumor stem cells. Chirurgia (Bucur); 2010 Sep-Oct;105(5):685-94
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  • [Title] Infiltrating growing pattern xenografts induced by glioblastoma and anaplastic astrocytoma derived tumor stem cells.
  • OBJECTIVE: The number of evidences regarding the role of tumor stem cells (TSC) in the initiation and progression of high-grade astrocytomas became more and more numerous in the last years.
  • This issue has been intensively tested in glioblastoma, but little attention has been paid for anaplastic astrocytoma.
  • The main objective of this paper was to study the morphological characteristics of the xenografts developed from glioblastoma and anaplastic astrocytoma derived cancer stem cells.
  • METHODS: The authors of this study successfully isolated and partial characterized primary cultures of glioblastoma and anaplastic astrocytoma derived TSC.
  • RESULTS: The tumor xenografts which have been established in nude mice using TSC had different characteristics when compared with U87 xenografts previously developed by our group, and depend of the origin type of the tumors (glioblastoma versus anaplastic astrocytoma).
  • The diffuse growing pattern and cells infiltration have been more pronounced in both anaplastic astrocytoma and glioblastoma derived TSC xenografts compared with U87 line xenografts.
  • CONCLUSION: Our results support the hypothesis regarding the role of TSC in the infiltration process of glioblastoma and anaplastic astrocytoma.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Glioblastoma / pathology. Neoplastic Stem Cells / pathology. Transplantation, Heterologous

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  • (PMID = 21141095.001).
  • [ISSN] 1221-9118
  • [Journal-full-title] Chirurgia (Bucharest, Romania : 1990)
  • [ISO-abbreviation] Chirurgia (Bucur)
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Romania
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29. Anselmo NP, Rey JA, Almeida LO, Custódio AC, Almeida JR, Clara CA, Santos MJ, Casartelli C: Concurrent sequence variation of TP53 and TP73 genes in anaplastic astrocytoma. Genet Mol Res; 2009;8(4):1257-63
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  • [Title] Concurrent sequence variation of TP53 and TP73 genes in anaplastic astrocytoma.
  • Disruption or loss of tumor suppressor gene TP53 is implicated in the development or progression of almost all different types of human malignancies.
  • Using PCR-SSCP and gene sequencing, we analyzed the TP53 and TP73 genes in a case of a grade III anaplastic astrocytoma that progressed to glioblastoma.
  • The mutation found at exon 6 of the gene TP53 could be associated with the rapid tumoral progression found in this case, since the mutated p53 may inactivate the wild-type p53 and the p73alpha protein, which was conserved here, leading to an increase in cellular instability.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. DNA-Binding Proteins / genetics. Nuclear Proteins / genetics. Tumor Suppressor Protein p53 / genetics. Tumor Suppressor Proteins / genetics

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  • (PMID = 19876867.001).
  • [ISSN] 1676-5680
  • [Journal-full-title] Genetics and molecular research : GMR
  • [ISO-abbreviation] Genet. Mol. Res.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Brazil
  • [Chemical-registry-number] 0 / DNA Primers; 0 / DNA-Binding Proteins; 0 / Nuclear Proteins; 0 / Tumor Suppressor Protein p53; 0 / Tumor Suppressor Proteins; 0 / tumor suppressor protein p73
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30. Cheong JH, Kim CH, Kim JM, Oh YH: Transformation of intracranial anaplastic astrocytoma associated with neurofibromatosis type I into gliosarcoma: case report. Clin Neurol Neurosurg; 2010 Oct;112(8):701-6
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  • [Title] Transformation of intracranial anaplastic astrocytoma associated with neurofibromatosis type I into gliosarcoma: case report.
  • Gliosarcoma is an uncommon malignant brain tumor composed of distinct sarcomatous and malignant glial cell elements.
  • These tumors are defined as a variant of glioblastoma, and it can be developed by progression of the malignant glial cell tumors or primary tumors.
  • We report a rare case with gliosarcomatous recurrence of anaplastic astrocytoma with neurofibromatosis type 1 (NF-1) followed by chemoradiation therapy.
  • He underwent an osteoplastic craniotomy with total tumor resection.
  • Histopathology of the tumor showed findings corresponding with anaplastic astrocytoma.
  • MRI showed tumor recurrence in the original site of the tumor.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Gliosarcoma / pathology. Neoplasm Recurrence, Local / pathology. Neurofibromatosis 1 / pathology

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  • [Copyright] (c) 2010 Elsevier B.V. All rights reserved.
  • (PMID = 20466481.001).
  • [ISSN] 1872-6968
  • [Journal-full-title] Clinical neurology and neurosurgery
  • [ISO-abbreviation] Clin Neurol Neurosurg
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Netherlands
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31. Walid MS, Troup EC: Cerebellar anaplastic astrocytoma in a teenager with Ollier Disease. J Neurooncol; 2008 Aug;89(1):59-62
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  • [Title] Cerebellar anaplastic astrocytoma in a teenager with Ollier Disease.
  • We are presenting a young patient with Ollier Disease and high-grade astrocytoma.
  • Brain MRI with contrast showed a 41 x 55 mm mass in the posterior fossa with spotty enhancement, which pathology proved to be anaplastic astrocytoma.
  • [MeSH-major] Astrocytoma / etiology. Astrocytoma / pathology. Cerebellar Neoplasms / etiology. Cerebellar Neoplasms / pathology. Cerebellum / pathology. Enchondromatosis / complications
  • [MeSH-minor] Adolescent. Age Factors. Bone Neoplasms / diagnostic imaging. Bone Neoplasms / pathology. Chondroma / diagnostic imaging. Chondroma / pathology. Genetic Predisposition to Disease / genetics. Headache / etiology. Humans. Humerus / diagnostic imaging. Humerus / pathology. Magnetic Resonance Imaging. Male. Mutation / genetics. Neurosurgical Procedures. PTEN Phosphohydrolase / genetics. PTEN Phosphohydrolase / metabolism. Radiography. Receptor, Parathyroid Hormone, Type 1 / genetics. Receptor, Parathyroid Hormone, Type 1 / metabolism. Scapula / diagnostic imaging. Scapula / pathology. Treatment Outcome. Vomiting / etiology

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  • (PMID = 18414790.001).
  • [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
  • [Chemical-registry-number] 0 / PTH1R protein, human; 0 / Receptor, Parathyroid Hormone, Type 1; EC 3.1.3.67 / PTEN Phosphohydrolase; EC 3.1.3.67 / PTEN protein, human
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32. Matar E, Cook RJ, Fowler AR, Biggs MT, Little NS, Wheeler HR, Robinson BG, McDonald KL: Post-contrast enhancement as a clinical indicator of prognosis in patients with anaplastic astrocytoma. J Clin Neurosci; 2010 Aug;17(8):993-6
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  • [Title] Post-contrast enhancement as a clinical indicator of prognosis in patients with anaplastic astrocytoma.
  • Diagnosis of an anaplastic astrocytoma (World Health Organization grade III) is associated with a highly variable prognosis.
  • In this study, we analysed 48 patients with a histological diagnosis of anaplastic astrocytoma and found peritumoral post-gadolinium contrast enhancement to be a clear prognostic marker of poor prognosis.
  • Multivariate analysis also confirmed surgery type, Karnofsky Performance Status score (<70) and increasing age as independent adverse predictors of survival.
  • The survival differences observed in the enhancing and non-enhancing lesions in patients diagnosed with anaplastic astrocytoma supports the existence of a broad anaplastic spectrum of disease, with enhancement being a clinical marker of tumour progression along this spectrum.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Gadolinium. Image Enhancement

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  • [Copyright] Copyright 2010 Elsevier Ltd. All rights reserved.
  • (PMID = 20605464.001).
  • [ISSN] 1532-2653
  • [Journal-full-title] Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
  • [ISO-abbreviation] J Clin Neurosci
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Scotland
  • [Chemical-registry-number] AU0V1LM3JT / Gadolinium
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33. Zhu Y, Guignard F, Zhao D, Liu L, Burns DK, Mason RP, Messing A, Parada LF: Early inactivation of p53 tumor suppressor gene cooperating with NF1 loss induces malignant astrocytoma. Cancer Cell; 2005 Aug;8(2):119-30
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Early inactivation of p53 tumor suppressor gene cooperating with NF1 loss induces malignant astrocytoma.
  • Malignant astrocytoma, the most prevalent primary brain tumor, is resistant to all known therapies and frequently harbors mutations that inactivate p53 and activate Ras signaling.
  • We have generated mouse strains that lack p53 and harbor a conditional allele of the NF1 tumor suppressor that negatively regulates Ras signaling.
  • The mice develop malignant astrocytomas with complete penetrance.
  • The majority of tumors display characteristics of glioblastoma multiforme with concomitant alteration of signaling pathways previously described in the human counterparts of this neoplasm.
  • We find that the sequence of tumor suppressor inactivation influences tumorigenicity and that earliest evidence of tumor formation localizes to regions of the brain that contain a multipotent stem cell population capable of in vivo differentiation into neurons and glia.

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  • (PMID = 16098465.001).
  • [ISSN] 1535-6108
  • [Journal-full-title] Cancer cell
  • [ISO-abbreviation] Cancer Cell
  • [Language] ENG
  • [Grant] United States / NINDS NIH HHS / NS / R01 NS034296-07; United States / NINDS NIH HHS / NS / NS034296-07; United States / NCI NIH HHS / CA / P20 CA086354; United States / NINDS NIH HHS / NS / R01 NS034296-06; United States / NINDS NIH HHS / NS / R01 NS034296; United States / NINDS NIH HHS / NS / NS034296-06; United States / NCI NIH HHS / CA / P20 CA86354
  • [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.; Research Support, U.S. Gov't, P.H.S.
  • [Publication-country] United States
  • [Other-IDs] NLM/ NIHMS263629; NLM/ PMC3024718
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34. Malhan P, Husain N, Bhalla S, Gupta RK, Husain M: Proliferating cell nuclear antigen, p53 and micro vessel density: Grade II vs. Grade III astrocytoma. Indian J Pathol Microbiol; 2010 Jan-Mar;53(1):20-3
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Proliferating cell nuclear antigen, p53 and micro vessel density: Grade II vs. Grade III astrocytoma.
  • Histological classification and grading are prime procedures in the management of patients with astrocytoma, providing vital data for therapeutic decision making and prognostication.
  • However, it has limitations in assessing biological tumor behavior.
  • This study was carried out to compare proliferative indices using proliferating cell nuclear antigen (PCNA), extent of p53 expression and micro vessel morphometric parameters in patients with low grade and anaplastic astrocytoma.
  • Twenty-five patients, each of grade II and grade III astrocytoma were evaluated using monoclonal antibodies to PCNA, p53 protein and factor VIII related antigen.
  • Patients with grade III astrocytoma had higher PCNA and p53 labeling indices as compared with grade II astrocytoma (29.14 plus/minus 9.87% vs. 16.84 plus/minus 6.57%, p 0.001; 18.18 plus/minus 6.14% vs. 6.14 plus/minus 7.23%, p 0.001, respectively).
  • Micro vessel percentage area of patients with grade III astrocytoma was also (4.26 plus/minus 3.70 vs. 1.05 plus/minus 0.56, p 0.001), higher along with other micro vessel morphometric parameters.
  • Discordance between histology and one or more IHC parameters was seen in 5/25 (20%) of patients with grade III astrocytoma and 9/25 (36%) of patients with grade II disease.
  • Increased proliferative fraction, genetic alterations and neovascularization mark biological aggressiveness in astrocytoma.
  • [MeSH-major] Astrocytoma / diagnosis. Astrocytoma / pathology. Neovascularization, Pathologic. Proliferating Cell Nuclear Antigen / analysis. Tumor Suppressor Protein p53 / analysis

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  • (PMID = 20090216.001).
  • [ISSN] 0974-5130
  • [Journal-full-title] Indian journal of pathology & microbiology
  • [ISO-abbreviation] Indian J Pathol Microbiol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Chemical-registry-number] 0 / Antibodies, Monoclonal; 0 / Proliferating Cell Nuclear Antigen; 0 / Tumor Suppressor Protein p53
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35. MacDonald TJ, Pollack IF, Okada H, Bhattacharya S, Lyons-Weiler J: Progression-associated genes in astrocytoma identified by novel microarray gene expression data reanalysis. Methods Mol Biol; 2007;377:203-22
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  • [Title] Progression-associated genes in astrocytoma identified by novel microarray gene expression data reanalysis.
  • Astrocytoma is graded as pilocytic (WHO grade I), diffuse (WHO grade II), anaplastic (WHO grade III), and glioblastoma multiforme (WHO grade IV).
  • The progression from low- to high-grade astrocytoma is associated with distinct molecular changes that vary with patient age, yet the prognosis of high-grade tumors in children and adults is equally dismal.
  • Whether specific gene expression changes are consistently associated with all high-grade astrocytomas, independent of patient age, is not known.
  • To address this question, we reanalyzed the microarray datasets comprising astrocytomas from children and adults, respectively.
  • We identified nine genes consistently dysregulated in high-grade tumors, using four novel tests for identifying differentially expressed genes.
  • Four genes encoding ribosomal proteins (RPS2, RPS8, RPS18, RPL37A) were upregulated, and five genes (APOD, SORL1, SPOCK2, PRSS11, ID3) were downregulated in high-grade by all tests.
  • Expression results were validated using a third astrocytoma dataset.
  • APOD, the most differentially expressed gene, has been shown to inhibit tumor cell and vascular smooth muscle cell proliferation.
  • This suggests that dysregulation of APOD may be critical for malignant astrocytoma formation, and thus a possible novel universal target for therapeutic intervention.
  • Further investigation is needed to evaluate the role of APOD, as well as the other genes identified, in malignant astrocytoma development.
  • [MeSH-major] Astrocytoma / genetics. Biomarkers, Tumor / genetics. Brain Neoplasms / genetics. Gene Expression. Oligonucleotide Array Sequence Analysis / methods
  • [MeSH-minor] Adult. Child. Chromosomes, Human. Cluster Analysis. Data Interpretation, Statistical. Disease Progression. Gene Expression Regulation, Neoplastic. Humans. Models, Genetic. Neoplasm Recurrence, Local. Reproducibility of Results

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  • (PMID = 17634619.001).
  • [ISSN] 1064-3745
  • [Journal-full-title] Methods in molecular biology (Clifton, N.J.)
  • [ISO-abbreviation] Methods Mol. Biol.
  • [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] 49
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36. Nagai S, Kurimoto M, Washiyama K, Hirashima Y, Kumanishi T, Endo S: Inhibition of cellular proliferation and induction of apoptosis by curcumin in human malignant astrocytoma cell lines. J Neurooncol; 2005 Sep;74(2):105-11
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  • [Title] Inhibition of cellular proliferation and induction of apoptosis by curcumin in human malignant astrocytoma cell lines.
  • In malignant astrocytoma cells, it was reported that NF-kappaB was activated aberrantly and promoted their proliferation.
  • Thus, inhibition of NF-kappaB activity is considered to be a promising therapeutic strategy for malignant astrocytoma.
  • In this study, we investigated inhibitory effects of curcumin on NF-kappaB activity and cellular proliferation, and induction of apoptosis by curcumin in human malignant astrocytoma cell lines.
  • Alteration of NF-kappaB activity in NP-2 human malignant astrocytoma cell line after treatment with curcumin was examined using electrophoretic mobility shift assay.
  • Alterations of DNA synthesis and cellular growth in five human malignant astrocytoma cell lines after treatment with curcumin were examined using [(3)H]thymidine incorporation assay and the trypan blue dye exclusion method, respectively.
  • Induction of apoptosis by curcumin in NP-2 and NP-3 human malignant astrocytoma cell lines was examined by DNA-fragmentation analysis and morphological observation.
  • The DNA synthesis and the cellular growth were inhibited by curcumin in dose-dependent manner in all the five malignant astrocytoma cell lines.
  • These results indicate that curcumin inhibits the cellular proliferation and induces apoptosis in human malignant astrocytoma cell lines.
  • [MeSH-major] Antineoplastic Agents / therapeutic use. Apoptosis / drug effects. Astrocytoma / drug therapy. Cell Proliferation / drug effects. Curcumin / therapeutic use. NF-kappa B / drug effects
  • [MeSH-minor] Electrophoretic Mobility Shift Assay. Humans. Thymidine / metabolism. Tumor Cells, Cultured

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  • (PMID = 16193380.001).
  • [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 / Antineoplastic Agents; 0 / NF-kappa B; IT942ZTH98 / Curcumin; VC2W18DGKR / Thymidine
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37. Kanamori M, Kumabe T, Watanabe M, Tominaga T: Anaplastic astrocytoma and anaplastic oligodendroglioma occurring 6 years after subtotal resection of a central neurocytoma. Case report. J Neurosurg; 2007 Jul;107(1):185-9
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  • [Title] Anaplastic astrocytoma and anaplastic oligodendroglioma occurring 6 years after subtotal resection of a central neurocytoma. Case report.
  • The authors present the case of a 51-year-old man who presented with an anaplastic astrocytoma and anaplastic oligodendroglioma that developed 6 years after subtotal resection of a central neurocytoma in his right lateral ventricle.
  • Histological examination revealed anaplastic oligodendroglioma in the parietal lobe and anaplastic astrocytoma in the insula.
  • One year later, the anaplastic astrocytoma was found to have transformed into a glioblastoma multiforme.
  • Fluorescence in situ hybridization analysis and immunohistochemical examinations detected deletions of the lp36 and 19q13 loci, and nuclear accumulation of TP53 protein in the anaplastic oligodendroglioma but not in the glioblastoma multiforme.
  • These findings suggest that central neurocytoma or progenitor cells have the potential for oligodendrocytic and astrocytic transformation with different genetic aberrations.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Neoplasm Recurrence, Local / pathology. Neurocytoma / surgery. Oligodendroglioma / pathology
  • [MeSH-minor] Cell Transformation, Neoplastic. Humans. Magnetic Resonance Imaging. Male. Middle Aged. Neoplasm Staging. Neurosurgical Procedures. Time Factors


38. Wu-Chen WY, Jacobs DA, Volpe NJ, Dalmau JO, Moster ML: Intracranial malignancies occurring more than 20 years after radiation therapy for pituitary adenoma. J Neuroophthalmol; 2009 Dec;29(4):289-95
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  • Imaging disclosed a left parasellar mass and a midbrain/pontine signal abnormality.
  • Biopsy of the parasellar mass revealed a malignant sarcoma.
  • The brainstem abnormality was presumptively diagnosed as a malignant glioma.
  • A 63-year-old man developed a malignant astrocytoma of the left optic nerve and chiasm 23 years after partial excision and radiation of a nonsecreting pituitary adenoma.

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  • (PMID = 19952902.001).
  • [ISSN] 1536-5166
  • [Journal-full-title] Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society
  • [ISO-abbreviation] J Neuroophthalmol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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39. Kawarabuki K, Ohta T, Hashimoto N, Wada K, Maruno M, Yamaki T, Ueda S: Cerebellar glioblastoma genetically defined as a secondary one. Clin Neuropathol; 2005 Mar-Apr;24(2):64-8
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  • In the present case, tumor lesions were observed in each cerebellar hemisphere.
  • The left-side lesion was diagnosed as glioblastoma, and the right-side lesion as malignant astrocytoma by histopathology.
  • Immunohistochemistry revealed that the tumor cells of the left-side lesion was positive for p53, whereas epidermal growth factor receptors (EGFR) were negative in tumor cells from both sides.
  • Genetic alterations were investigated using a genome DNA microarray (GenoSensor Array 300), which has led us to define this tumor as a secondary glioblastoma.

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  • (PMID = 15803805.001).
  • [ISSN] 0722-5091
  • [Journal-full-title] Clinical neuropathology
  • [ISO-abbreviation] Clin. Neuropathol.
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Germany
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40. Kojadinovic Z, Papic V, Cigic T, Vulekovic P, Popovic Lj, Jajic Dj: A new scoring system for malignant astrocytomas. Zentralbl Neurochir; 2008 May;69(2):65-70

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] A new scoring system for malignant astrocytomas.
  • BACKGROUND: Currently there are a few scoring systems for malignant astrocytoma, but they are not widely accepted.
  • The aim of this study was to create a scoring system for supratentorial malignant astrocytoma, which could be used in both developed and developing societies.
  • METHODS: This study was performed in 128 patients who had supratentorial malignant astrocytoma (grade III or IV).
  • By using the most appropriate four parameters (age, KPS, initial seizure and histopathological grade) we created a scoring system - MAS (Malignant Astrocytoma Score).
  • CONCLUSIONS: We are of the opinion that MAS represents a useful scoring system to determine the severity of the illness and make a prognosis for both individuals and groups of patients with malignant supratentorial astrocytoma.
  • [MeSH-major] Astrocytoma / pathology. Supratentorial Neoplasms / pathology
  • [MeSH-minor] Female. Humans. Kaplan-Meier Estimate. Karnofsky Performance Status. Magnetic Resonance Imaging. Male. Middle Aged. Neoplasm Staging. Neurosurgical Procedures / mortality. Prognosis. Proportional Hazards Models. ROC Curve. Survival Analysis. Tomography, X-Ray Computed

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  • (PMID = 18444219.001).
  • [ISSN] 0044-4251
  • [Journal-full-title] Zentralblatt für Neurochirurgie
  • [ISO-abbreviation] Zentralbl. Neurochir.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Germany
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41. Roselli F, Pisciotta NM, Aniello MS, Niccoli-Asabella A, Defazio G, Livrea P, Rubini G: Brain F-18 Fluorocholine PET/CT for the assessment of optic pathway glioma in neurofibromatosis-1. Clin Nucl Med; 2010 Oct;35(10):838-9
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  • Magnetic resonance imaging, magnetic resonance spectroscopy (MRS), and F-18 fluorocholine revealed a splenial mass with imaging features compatible with malignant astrocytoma.

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  • (PMID = 20838306.001).
  • [ISSN] 1536-0229
  • [Journal-full-title] Clinical nuclear medicine
  • [ISO-abbreviation] Clin Nucl Med
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / fluorocholine; N91BDP6H0X / Choline
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42. Miura FK, Alves MJ, Rocha MC, da Silva R, Oba-Shinjo SM, Marie SK: Xenograft transplantation of human malignant astrocytoma cells into immunodeficient rats: an experimental model of glioblastoma. Clinics (Sao Paulo); 2010 Mar;65(3):305-9
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  • [Title] Xenograft transplantation of human malignant astrocytoma cells into immunodeficient rats: an experimental model of glioblastoma.
  • INTRODUCTION: Astrocytic gliomas are the most common intracranial central nervous system neoplasias, accounting for about 60% of all primary central nervous system tumors.
  • OBJECTIVE: To develop an experimental malignant astrocytoma model with the characteristics of the human tumor.
  • METHOD: Primary cells from subcutaneous xenograft tumors produced with malignant astrocytoma U87MG cells were inoculated intracerebrally by stereotaxis into immunosuppressed (athymic) Rowett rats.
  • CONCLUSION: A malignant astrocytoma intracerebral xenograft model with poorly invasive behavior was achieved in athymic Rowett rats.
  • Tumor invasiveness in an experimental animal model may depend on a combination of several factors, including the cell line used to induce tumor formation, the rat strains and the status of the animal's immune system.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Glioblastoma / pathology. Immunocompromised Host
  • [MeSH-minor] Animals. Cell Line, Tumor. Disease Models, Animal. Female. Humans. Neoplasm Transplantation. Rats. Rats, Nude. Transplantation, Heterologous

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  • [Cites] Anticancer Res. 2006 Jul-Aug;26(4B):2887-900 [16886610.001]
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  • (PMID = 20360922.001).
  • [ISSN] 1980-5322
  • [Journal-full-title] Clinics (São Paulo, Brazil)
  • [ISO-abbreviation] Clinics (Sao Paulo)
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Brazil
  • [Other-IDs] NLM/ PMC2845772
  • [Keywords] NOTNLM ; Athymic Rowett rats / Brain tumor / Experimental model / U87MG cells
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43. Kikuchi T: [Novel immunotherapeutic approach]. Gan To Kagaku Ryoho; 2005 Apr;32(4):453-7
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  • Malignant astrocytoma is the most common primary brain tumor in adults.
  • The median survival time of patients with high-grade malignant astrocytoma is about 1 year, despite aggressive treatment with surgical resection, radiotherapy, and cytotoxic chemotherapy.
  • The author reviews immunotherapeutic approaches for malignant gliomas and the relevance of recent clinical trials and their outcomes.
  • DCs have been investigated in several clinical trials in patients with malignant tumors including malignant gliomas.
  • So far, seven papers concerning immunotherapy with DCs against malignant gliomas have been published.
  • These reports demonstrate that immunotherapy with DCs induces immune responses and clinically antitumor effects in some patients with malignant glioma.
  • [MeSH-major] Astrocytoma / therapy. Brain Neoplasms / therapy. Glioma / therapy. Immunotherapy

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  • (PMID = 15853209.001).
  • [ISSN] 0385-0684
  • [Journal-full-title] Gan to kagaku ryoho. Cancer & chemotherapy
  • [ISO-abbreviation] Gan To Kagaku Ryoho
  • [Language] jpn
  • [Publication-type] English Abstract; Journal Article; Review
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Immunotoxins; 0 / Interleukin-13; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
  • [Number-of-references] 23
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44. Li B, Qi XQ, Chen X, Huang X, Liu GY, Chen HR, Huang CG, Luo C, Lu YC: Expression of targeting protein for Xenopus kinesin-like protein 2 is associated with progression of human malignant astrocytoma. Brain Res; 2010 Sep 17;1352:200-7
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  • [Title] Expression of targeting protein for Xenopus kinesin-like protein 2 is associated with progression of human malignant astrocytoma.
  • However, the contribution of TPX2 expression to astrocytoma progression is unclear.
  • The aim of this study was to investigate TPX2 expression in human astrocytoma samples and cell lines.
  • TPX2 protein expression was detected in the nucleus of astrocytoma tissues by immunohistochemistry and immunofluorescence staining.
  • Real-time PCR and Western blot analysis showed that the expression levels of TPX2 were higher in high-grade astrocytoma tissues and cell lines than that in low-grade astrocytoma tissues and normal cell lines.
  • Immunohistochemical analysis of tumor tissues from 52 patients with astrocytoma showed that TPX2 over-expression was significantly associated with decreased patient survival.
  • These data suggest that TPX2 expression is associated with the progression of malignant astrocytoma.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Cell Cycle Proteins / genetics. Microtubule-Associated Proteins / genetics. Nuclear Proteins / genetics
  • [MeSH-minor] Apoptosis. Aurora Kinases. Brain / metabolism. Cell Division. Cell Line, Tumor. Cyclin B1 / genetics. Cyclin D1 / genetics. Disease Progression. Down-Regulation. Gene Expression Regulation, Neoplastic. Humans. Immunohistochemistry. Protein-Serine-Threonine Kinases / genetics. Proto-Oncogene Proteins c-myc / genetics. Survival Rate. Tumor Suppressor Protein p53 / genetics

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  • (PMID = 20599806.001).
  • [ISSN] 1872-6240
  • [Journal-full-title] Brain research
  • [ISO-abbreviation] Brain Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Cell Cycle Proteins; 0 / Cyclin B1; 0 / Microtubule-Associated Proteins; 0 / Nuclear Proteins; 0 / Proto-Oncogene Proteins c-myc; 0 / TPX2 protein, human; 0 / Tumor Suppressor Protein p53; 136601-57-5 / Cyclin D1; EC 2.7.11.1 / Aurora Kinases; EC 2.7.11.1 / Protein-Serine-Threonine Kinases
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45. Bäcklund LM, Nilsson BR, Liu L, Ichimura K, Collins VP: Mutations in Rb1 pathway-related genes are associated with poor prognosis in anaplastic astrocytomas. Br J Cancer; 2005 Jul 11;93(1):124-30
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  • [Title] Mutations in Rb1 pathway-related genes are associated with poor prognosis in anaplastic astrocytomas.
  • Anaplastic astrocytoma (AA, WHO grade III) is, second to Glioblastoma, the most common and most malignant type of adult CNS tumour.
  • The survival data on 37 carefully sampled AA was correlated with the results of a detailed analysis of the status of nine genes known to be involved in the development of astrocytic tumours.
  • We found that loss of both wild-type copies of any of the three tumour suppressor genes CDKN2A, CDKN2B and RB1 or gene amplification of CDK4, disrupting the Rb1 pathway, were associated with shorter survival (P=0.009).
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Genes, Retinoblastoma. Mutation


46. Buckner JC, O'Fallon JR, Dinapoli RP, Schomberg PJ, Farr G, Schaefer P, Giannini C, Scheithauer BW, Ballman KV: Prognosis in patients with anaplastic oligoastrocytoma is associated with histologic grade. J Neurooncol; 2007 Sep;84(3):279-86
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  • [Title] Prognosis in patients with anaplastic oligoastrocytoma is associated with histologic grade.
  • BACKGROUND: Anaplastic oligoastrocytomas (AOA) are relatively uncommon high-grade gliomas.
  • METHODS: Between 1980 and 1999, Mayo Clinic and the NCCTG conducted 10 trials of radiation therapy and chemotherapy in adults with newly-diagnosed high-grade gliomas.
  • We grouped patients by cell type and grade, compared survival distributions by the log-rank statistic, and performed multiple variable analyses.
  • RESULTS: Of 1368 patients, 68 (5%) had AOA, including 21 Grade 3 (OA3) and 47 grade 4 (OA4), 153 (11%) had anaplastic astrocytoma (AA), and 1147 (84%) had glioblastoma multiforme (GBM).
  • CONCLUSIONS: Patients with anaplastic oligoastrocytoma have distinct outcomes based upon grade (OA3 vs. OA4) and in comparison with pure astrocytoma (AA or GBM).
  • Future trials which include more than one histologic entity need to report results by cell type and grade and account for the varying prognoses in interpreting treatment outcomes.
  • [MeSH-major] Astrocytoma / mortality. Astrocytoma / pathology. Brain Neoplasms / mortality. Brain Neoplasms / pathology

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  • (PMID = 17431544.001).
  • [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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47. Barnholtz-Sloan JS, Williams VL, Maldonado JL, Shahani D, Stockwell HG, Chamberlain M, Sloan AE: Patterns of care and outcomes among elderly individuals with primary malignant astrocytoma. J Neurosurg; 2008 Apr;108(4):642-8
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  • [Title] Patterns of care and outcomes among elderly individuals with primary malignant astrocytoma.
  • OBJECT: This study was undertaken to evaluate the association between age at diagnosis, patterns of care, and outcome among elderly individuals with anaplastic astrocytoma (AA) and glioblastoma multiforme (GBM).
  • The odds of undergoing various combinations of treatments and the associations with outcome were calculated by tumor type and age and adjusted by various predictors.
  • Very elderly individuals with malignant astrocytomas were more likely to receive limited treatment (most pronounced in individuals with GBM).

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  • [CommentIn] J Neurosurg. 2012 Feb;116(2):355-6; discussion 356 [21942728.001]
  • [CommentIn] J Neurosurg. 2008 Apr;108(4):639-40 [18377239.001]
  • (PMID = 18377240.001).
  • [ISSN] 0022-3085
  • [Journal-full-title] Journal of neurosurgery
  • [ISO-abbreviation] J. Neurosurg.
  • [Language] ENG
  • [Grant] United States / NCI NIH HHS / CA / K08 CA101954; United States / NCI NIH HHS / CA / K07-CA91849; United States / NCI NIH HHS / CA / K08-CA101954
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] United States
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48. Ehling R, Sterlacci W, Maier H, Berger T: A 45-year old male with left-sided hemihypesthesia. Brain Pathol; 2010 Mar;20(2):515-8
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  • Extensive immunological and radiological investigations were not able to differentiate between an intrinsic brain tumor and a demyelinating disease.
  • Stereotactic biopsies of the brainstem were performed; the findings of abundant Rosenthal fibers, interjacent spindle-shaped and gemistocytic cells partially with dark and irregularly formed nuclei favored primarily the diagnosis of a malignant astrocytoma, although a demyelinating disease could not be definitely excluded.

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  • (PMID = 20438473.001).
  • [ISSN] 1750-3639
  • [Journal-full-title] Brain pathology (Zurich, Switzerland)
  • [ISO-abbreviation] Brain Pathol.
  • [Language] eng
  • [Publication-type] Case Reports; Letter
  • [Publication-country] Switzerland
  • [Chemical-registry-number] 0Z5B2CJX4D / Fluorodeoxyglucose F18
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49. Rodriguez FJ, Scheithauer BW, Burger PC, Jenkins S, Giannini C: Anaplasia in pilocytic astrocytoma predicts aggressive behavior. Am J Surg Pathol; 2010 Feb;34(2):147-60
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  • [Title] Anaplasia in pilocytic astrocytoma predicts aggressive behavior.
  • The clinical significance of anaplastic features, a rare event in pilocytic astrocytoma (PA), is not fully established.
  • We reviewed 34 PA with anaplastic features (Male = 21, Female = 13; median age 35 y, 5 to 75) among approximately 2200 PA cases (1.7%).
  • The tumors either had a PA precursor, coexistent (n = 14) (41%) or documented by previous biopsy (n = 10) (29%), or exhibited typical pilocytic features in an otherwise anaplastic astrocytoma (n = 10) (29%).
  • Clinical features of neurofibromatosis type-1 were present in 24% and a history of radiation for PA precursor in 12%.
  • Histologically, the anaplastic component was classified as pilocytic like (41%), small cell (32%), epithelioid (15%), or fibrillary (12%).
  • Median MIB1 labeling index was 24.7% in the anaplastic component and 2.6% in the precursor, although overlapping values were present.
  • The biologic behavior of PAs with high-mitotic rates and those with necrosis paralleled that of St Anne-Mayo grades 2 and 3 diffuse astrocytomas, respectively.
  • In summary, PA with anaplastic features exhibits a spectrum of morphologies and is associated with decreased survival when compared with typical PA.
  • [MeSH-major] Astrocytoma / diagnosis. Brain Neoplasms / diagnosis
  • [MeSH-minor] Adolescent. Adult. Aged. Anaplasia. Biomarkers, Tumor / metabolism. Child. Child, Preschool. Combined Modality Therapy. Female. Humans. Kaplan-Meier Estimate. Male. Middle Aged. Minnesota / epidemiology. Mitosis. Prognosis. Retrospective Studies. Survival Rate. Ubiquitin-Protein Ligases / metabolism. Young Adult

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  • (PMID = 20061938.001).
  • [ISSN] 1532-0979
  • [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; EC 6.3.2.19 / MIB1 ligase, human; EC 6.3.2.19 / Ubiquitin-Protein Ligases
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50. Hartmann C, Hentschel B, Wick W, Capper D, Felsberg J, Simon M, Westphal M, Schackert G, Meyermann R, Pietsch T, Reifenberger G, Weller M, Loeffler M, von Deimling A: Patients with IDH1 wild type anaplastic astrocytomas exhibit worse prognosis than IDH1-mutated glioblastomas, and IDH1 mutation status accounts for the unfavorable prognostic effect of higher age: implications for classification of gliomas. Acta Neuropathol; 2010 Dec;120(6):707-18
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  • [Title] Patients with IDH1 wild type anaplastic astrocytomas exhibit worse prognosis than IDH1-mutated glioblastomas, and IDH1 mutation status accounts for the unfavorable prognostic effect of higher age: implications for classification of gliomas.
  • WHO grading of human brain tumors extends beyond a strictly histological grading system by providing a basis predictive for the clinical behavior of the respective neoplasm.
  • For example, patients with glioblastoma WHO grade IV usually show a less favorable clinical course and receive more aggressive first-line treatment than patients with anaplastic astrocytoma WHO grade III.
  • Here we provide evidence that the IDH1 status is more prognostic for overall survival than standard histological criteria that differentiate high-grade astrocytomas.
  • We sequenced the isocitrate dehydrogenase 1 gene (IDH1) at codon 132 in 382 patients with anaplastic astrocytoma and glioblastoma from the NOA-04 trial and from a prospective translational cohort study of the German Glioma Network.
  • Patients with anaplastic astrocytomas carried IDH1 mutations in 60%, and patients with glioblastomas in 7.2%.
  • The sequence from more favorable to poorer outcome was (1) anaplastic astrocytoma with IDH1 mutation, (2) glioblastoma with IDH1 mutation, (3) anaplastic astrocytoma without IDH1 mutation and (4) glioblastoma without IDH1 mutation (p < 0.0001).
  • In this combined set of anaplastic astrocytomas and glioblastomas both, IDH1 mutation and IDH1 expression status were of greater prognostic relevance than histological diagnosis according to the current WHO classification system.
  • We propose to complement the current WHO classification and grading of high-grade astrocytic gliomas by the IDH1 mutation status and to use this combined histological and molecular classification in future clinical trials.
  • [MeSH-minor] Adolescent. Adult. Age Factors. Aged. Aged, 80 and over. Astrocytoma / diagnosis. Astrocytoma / genetics. Astrocytoma / pathology. Cohort Studies. Female. Humans. Male. Middle Aged. Prognosis. Prospective Studies. Young Adult


51. Yue WY, Chen ZP: Does vasculogenic mimicry exist in astrocytoma? J Histochem Cytochem; 2005 Aug;53(8):997-1002
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  • [Title] Does vasculogenic mimicry exist in astrocytoma?
  • Vasculogenic mimicry (VM) has been observed in melanoma and in some nonmelanoma tumor types.
  • It is unknown whether a similar VM phenomenon exists in astrocytoma.
  • The present study was to examine 45 astrocytomas (including World Health Organization grade II 15 cases, grade III 15 cases, and grade IV 15 cases) by CD34 endothelial marker periodic acid-Schiff (PAS) dual staining to see if VM existing in these tumors.
  • The results demonstrated that endothelium-lined vessels dominated the tumor microvasculature and stained positively for PAS, laminin, and endothelial marker.
  • PAS-positive pattern of VM was found in two grade IV astrocytomas.
  • Channels stained positively for PAS, laminin, and negatively for CD34 of the VM entrapped in the tumor tissue.
  • Furthermore, in astrocytoma, especially glioblastoma, focus of anaplastic tumor cells appeared with CD34 expression, whereas some tumor cells lost glial fibrillary acid protein expression.
  • It is assumed that genetically deregulated tumor cells in astrocytoma could lose the astrocyte-specific protein and express inappropriate markers not expected in cells of astrocyte lineage.
  • The present results suggest that VM phenomenon exists in some malignant astrocytoma.
  • [MeSH-major] Astrocytoma / blood supply. Brain Neoplasms / blood supply
  • [MeSH-minor] Antigens, CD34 / metabolism. Biomarkers / metabolism. Coloring Agents. Endothelium, Vascular / metabolism. Humans. Microcirculation. Neoplasm Staging. Periodic Acid. Schiff Bases

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  • (PMID = 15923371.001).
  • [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 / Antigens, CD34; 0 / Biomarkers; 0 / Coloring Agents; 0 / Schiff Bases; 10450-60-9 / Periodic Acid
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52. Ido K, Nakagawa T, Sakuma T, Takeuchi H, Sato K, Kubota T: Expression of vascular endothelial growth factor-A and mRNA stability factor HuR in human astrocytic tumors. Neuropathology; 2008 Dec;28(6):604-11
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  • [Title] Expression of vascular endothelial growth factor-A and mRNA stability factor HuR in human astrocytic tumors.
  • High-grade astrocytic tumors, such as glioblastoma, possess rich vascular components, which are necessary for their growth.
  • VEGF-A is considered to be the major mediator of angiogenesis in malignant neoplasms including high-grade astrocytic tumors.
  • The upregulation of VEGF-A expression in tumor cells is induced by two mechanisms: the transcriptional activation and the post-transcriptional stabilization of VEGF-A mRNA.
  • While the former mechanism mediated by hypoxia inducible factor-1 alpha (HIF-1alpha) has been revealed, the latter mediated by mRNA stability factor HuR remains unclear in astrocytic tumors.
  • In the present study, we investigated the expression of VEGF-A and mRNA stability factor HuR in supratentorial astrocytic tumors of 27 adults using RT-PCR, ELISA, and immunohistochemistry.
  • Furthermore, we studied the involvement of HuR in the upregulation of VEGF-A expression using malignant astrocytoma cell lines.
  • In higher-grade astrocytic tumors, the level of VEGF-A and microvascular density were elevated, cytoplasmic expression of HuR, which potentially means the protection of VEGF-A mRNA from degradation by ribonucleases, appeared, and they were correlated positively.
  • In in vitro experiments, the inhibition of the cytoplasmic translocation of HuR protein by leptomycin B (LMB) reduced the upregulation of VEGF-A expression in malignant astrocytic tumor cells under hypoxic conditions.
  • These findings suggest that the expression of VEGF-A and cytoplasmic translocation of HuR relates to the histological grade, and that HuR is involved in the upregulation of VEGF-A expression, in human astrocytic tumors.
  • [MeSH-major] Antigens, Surface / metabolism. Astrocytoma / metabolism. RNA-Binding Proteins / metabolism. Supratentorial Neoplasms / metabolism. Vascular Endothelial Growth Factor A / metabolism
  • [MeSH-minor] Adult. Aged. Aged, 80 and over. Angiogenesis Inducing Agents. Cytoplasm / metabolism. ELAV Proteins. ELAV-Like Protein 1. Enzyme-Linked Immunosorbent Assay. Fatty Acids, Unsaturated / pharmacology. Female. Glioblastoma / genetics. Glioblastoma / metabolism. Glioblastoma / pathology. Humans. Immunohistochemistry. Male. Middle Aged. RNA Processing, Post-Transcriptional. Reverse Transcriptase Polymerase Chain Reaction. Tumor Cells, Cultured. Up-Regulation. Young Adult

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  • (PMID = 18498284.001).
  • [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 / Angiogenesis Inducing Agents; 0 / Antigens, Surface; 0 / ELAV Proteins; 0 / ELAV-Like Protein 1; 0 / ELAVL1 protein, human; 0 / Fatty Acids, Unsaturated; 0 / RNA-Binding Proteins; 0 / VEGFA protein, human; 0 / Vascular Endothelial Growth Factor A; 87081-35-4 / leptomycin B
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53. Zhu Y, Harada T, Liu L, Lush ME, Guignard F, Harada C, Burns DK, Bajenaru ML, Gutmann DH, Parada LF: Inactivation of NF1 in CNS causes increased glial progenitor proliferation and optic glioma formation. Development; 2005 Dec;132(24):5577-88
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  • The gene responsible for neurofibromatosis type 1 (NF1) encodes a tumor suppressor that functions as a negative regulator of the Ras proto-oncogene.
  • Individuals with germline mutations in NF1 are predisposed to the development of benign and malignant tumors of the peripheral and central nervous system (CNS).
  • Children with this disease suffer a high incidence of optic gliomas, a benign but potentially debilitating tumor of the optic nerve; and an increased incidence of malignant astrocytoma, reactive astrogliosis and intellectual deficits.

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  • (PMID = 16314489.001).
  • [ISSN] 0950-1991
  • [Journal-full-title] Development (Cambridge, England)
  • [ISO-abbreviation] Development
  • [Language] ENG
  • [Grant] United States / NINDS NIH HHS / NS / NS052606-01; United States / NINDS NIH HHS / NS / P50 NS052606; United States / NINDS NIH HHS / NS / P50 NS052606-01
  • [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] England
  • [Chemical-registry-number] 0 / Neurofibromin 1
  • [Other-IDs] NLM/ NIHMS149022; NLM/ PMC2760350
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54. Bozinov O, Köhler S, Samans B, Benes L, Miller D, Ritter M, Sure U, Bertalanffy H: Candidate genes for the progression of malignant gliomas identified by microarray analysis. Neurosurg Rev; 2008 Jan;31(1):83-9; discussion 89-90
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Candidate genes for the progression of malignant gliomas identified by microarray analysis.
  • Malignant astrocytomas of World Health Organization (WHO) grade III or IV have a reduced median survival time, and possible pathways have been described for the progression of anaplastic astrocytomas and glioblastomas, but the molecular basis of malignant astrocytoma progression is still poorly understood.
  • We compared the transcriptional profile of 4,608 genes in tumours of 15 patients including 6 anaplastic astrocytomas (WHO grade III) and 9 glioblastomas (WHO grade IV) using microarray analysis.
  • We identified 166 gene alterations with a fold change of 2 and higher whose mRNA levels differed (absolute value of the t statistic of 1.96) between the two malignant glioma groups.
  • Further analyses confirmed same transcription directions for Olig2 and IL-13Ralpha2 in anaplastic astrocytomas as compared to glioblastomas.
  • IL-13Ralpha2 and Olig2 have been identified and confirmed to be interesting candidate genes whose differential expression likely plays a role in malignant progression of astrocytomas.
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Gene Expression Profiling. Glioblastoma / genetics. Oligonucleotide Array Sequence Analysis

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  • [ErratumIn] Neurosurg Rev. 2008 Apr;31(2):247-8
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  • (PMID = 17917751.001).
  • [ISSN] 0344-5607
  • [Journal-full-title] Neurosurgical review
  • [ISO-abbreviation] Neurosurg Rev
  • [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 / Interleukin-13 Receptor alpha2 Subunit; 0 / Nerve Tissue Proteins; 0 / OLIG2 protein, human
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55. Widmer M, Hanemann CO, Zajicek J: High concentrations of cannabinoids activate apoptosis in human U373MG glioma cells. J Neurosci Res; 2008 Nov 1;86(14):3212-20
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  • Glioma cells (astrocyte-derived brain tumor cells) express cannabinoid receptors, and numerous in vitro and in vivo studies performed in rodents have concluded that apoptosis could be induced by cannabinoids in these cells.
  • Whether this also applies to human cells is controversial; we, therefore, assessed the effect of cannabinoids on human glioma cell viability with the human astrocytoma cell line U373MG.
  • Human U373MG glioma cells are sensitive only to very high, pharmacologically irrelevant concentrations of cannabinoids, so it seems unlikely that cannabinoids would constitute promising molecules for treating malignant astrocytoma; they do not induce glioma cell death at doses that could be applied safely to humans.
  • [MeSH-minor] Blotting, Western. Brain Neoplasms / metabolism. Cannabinoid Receptor Agonists. Cell Line, Tumor. Cell Proliferation / drug effects. Fluorescent Antibody Technique. Humans. Receptors, Cannabinoid / drug effects. Signal Transduction / drug effects. Signal Transduction / physiology

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  • [Copyright] (c) 2008 Wiley-Liss, Inc.
  • (PMID = 18615640.001).
  • [ISSN] 1097-4547
  • [Journal-full-title] Journal of neuroscience research
  • [ISO-abbreviation] J. Neurosci. Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Cannabinoid Receptor Agonists; 0 / Receptors, Cannabinoid; 7J8897W37S / Dronabinol
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56. Somasundaram K, Reddy SP, Vinnakota K, Britto R, Subbarayan M, Nambiar S, Hebbar A, Samuel C, Shetty M, Sreepathi HK, Santosh V, Hegde AS, Hegde S, Kondaiah P, Rao MR: Upregulation of ASCL1 and inhibition of Notch signaling pathway characterize progressive astrocytoma. Oncogene; 2005 Oct 27;24(47):7073-83
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  • [Title] Upregulation of ASCL1 and inhibition of Notch signaling pathway characterize progressive astrocytoma.
  • Astrocytoma is the most common type of brain cancer constituting more than half of all brain tumors.
  • With an aim to identify markers describing astrocytoma progression, we have carried out microarray analysis of astrocytoma samples of different grades using cDNA microarray containing 1152 cancer-specific genes.
  • Data analysis identified several differentially regulated genes between normal brain tissue and astrocytoma as well as between grades II/III astrocytoma and glioblastoma multiforme (GBM; grade IV).
  • As ASCL has been implicated in neuroendocrine, medullary thyroid and small-cell lung cancers, we chose to examine the role of ASCL1 in the astrocytoma development.
  • Our data revealed that ASCL1 is overexpressed in progressive astrocytoma as evidenced by increased levels of ASCL1 transcripts in 85.71% (6/7) of grade II diffuse astrocytoma (DA), 90% (9/10) of grade III anaplastic astrocytoma (AA) and 87.5% (7/8) of secondary GBMs, while the majority of primary de novo GBMs expressed similar to or less than normal brain levels (66.67%; 8/12).
  • ASCL1 upregulation in progressive astrocytoma is accompanied by inhibition of Notch signaling as seen by uninduced levels of HES1, a transcriptional target of Notch1, increased levels of HES6, a dominant-negative inhibitor of HES1-mediated repression of ASCL1, and increased levels of Notch ligand Delta1, which is capable of inhibiting Notch signaling by forming intracellular Notch ligand autonomous complexes.
  • Our results imply that inhibition of Notch signaling may be an important early event in the development of grade II DA and subsequent progression to grade III AA and secondary GBM.
  • [MeSH-major] Astrocytoma / genetics. DNA-Binding Proteins / metabolism. Gene Expression Regulation, Neoplastic. Glioblastoma / genetics. Membrane Proteins / metabolism. Signal Transduction. Transcription Factors / metabolism
  • [MeSH-minor] Basic Helix-Loop-Helix Transcription Factors. Brain / metabolism. Brain / pathology. Brain Neoplasms / genetics. Brain Neoplasms / metabolism. Brain Neoplasms / pathology. Disease Progression. Gene Expression Profiling. Helix-Loop-Helix Motifs. Humans. Oligonucleotide Array Sequence Analysis. RNA, Neoplasm / genetics. RNA, Neoplasm / metabolism. Receptors, Notch. Reverse Transcriptase Polymerase Chain Reaction. Up-Regulation

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  • (PMID = 16103883.001).
  • [ISSN] 0950-9232
  • [Journal-full-title] Oncogene
  • [ISO-abbreviation] Oncogene
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / ASCL1 protein, human; 0 / Basic Helix-Loop-Helix Transcription Factors; 0 / DNA-Binding Proteins; 0 / Membrane Proteins; 0 / RNA, Neoplasm; 0 / Receptors, Notch; 0 / Transcription Factors
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57. Ward SJ, Karakoula K, Phipps KP, Harkness W, Hayward R, Thompson D, Jacques TS, Harding B, Darling JL, Thomas DG, Warr TJ: Cytogenetic analysis of paediatric astrocytoma using comparative genomic hybridisation and fluorescence in-situ hybridisation. J Neurooncol; 2010 Jul;98(3):305-18
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  • [Title] Cytogenetic analysis of paediatric astrocytoma using comparative genomic hybridisation and fluorescence in-situ hybridisation.
  • Little is known about the cytogenetic and molecular genetic events that lead to the formation of paediatric astrocytoma.
  • We have analysed 57 paediatric astrocytoma (WHO grades I-IV) using comparative genomic hybridisation in order to identify common regions of abnormality.
  • The presence of copy number alterations was significantly associated with increasing grade of malignancy, and gain of 12q and the presence of high-copy number amplification were associated with a poor outcome in patients with malignant astrocytoma (P = 0.0039 and 0.0085, respectively).
  • [MeSH-major] Astrocytoma / genetics. Brain Neoplasms / genetics. Comparative Genomic Hybridization / methods. In Situ Hybridization, Fluorescence / methods

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  • (PMID = 20052518.001).
  • [ISSN] 1573-7373
  • [Journal-full-title] Journal of neuro-oncology
  • [ISO-abbreviation] J. Neurooncol.
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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58. Knizetova P, Ehrmann J, Hlobilkova A, Vancova I, Kalita O, Kolar Z, Bartek J: Autocrine regulation of glioblastoma cell cycle progression, viability and radioresistance through the VEGF-VEGFR2 (KDR) interplay. Cell Cycle; 2008 Aug 15;7(16):2553-61
The Lens. Cited by Patents in .

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • Vascular endothelial growth factor (VEGF) plays a crucial role in angiogenesis and progression of malignant brain tumors.
  • Given the significance of tumor microenvironment in general, and the established role of paracrine VEGF signaling in glioblastoma (GBM) biology in particular, we explored the potential autocrine control of human astrocytoma behavior by VEGF.
  • Using a range of cell and molecular biology approaches to study a panel of astrocytoma (grade III and IV/GBM)-derived cell lines and a series of clinical specimens from low- and high-grade astrocytomas, we show that co-expression of VEGF and VEGF receptors (VEGFRs) occurs commonly in astrocytoma cells.
  • Blockade of VEGFR2 by the selective inhibitor (SU1498) abrogated the VEGF-mediated enhancement of astrocytoma cell growth and viability under unperturbed culture conditions.
  • In addition, such interference with VEGF-VEGFR2 signaling potentiated the ionizing radiation-induced tumor cell death.
  • In clinical specimens, both VEGFRs and VEGF were co-expressed in astroglial tumor cells, and higher VEGF expression correlated with tumor progression, thereby supporting the relevance of functional VEGF-VEGFR signaling in vivo.
  • Overall, our results are consistent with a potential autocrine role of the VEGF-VEGFR2 (KDR) interplay as a factor contributing to malignant astrocytoma growth and radioresistance, thereby supporting the candidacy of this signaling cascade as a therapeutic target, possibly in combination with radiotherapy.
  • [MeSH-minor] Autocrine Communication. Cell Cycle. Cell Line, Tumor. Humans. Radiation Tolerance. Signal Transduction

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  • (PMID = 18719373.001).
  • [ISSN] 1551-4005
  • [Journal-full-title] Cell cycle (Georgetown, Tex.)
  • [ISO-abbreviation] Cell Cycle
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Vascular Endothelial Growth Factor A; EC 2.7.10.1 / Vascular Endothelial Growth Factor Receptor-2
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59. Miyamoto J, Tatsuzawa K, Owada K, Kawabe T, Sasajima H, Mineura K: Usefulness and limitations of fluorine-18-fluorodeoxyglucose positron emission tomography for the detection of malignancy of orbital tumors. Neurol Med Chir (Tokyo); 2008;48(11):495-9; discussion 499

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  • Twelve patients with 13 orbital tumors underwent [18F]FDG PET followed by biopsy or tumor removal via a transcranial approach.
  • The accumulation ratio between the tumor and the contralateral normal tissue (T/N ratio) was calculated for 10 of the 13 lesions.
  • The T/N ratio in benign lesions was compared with that in malignant tumors.
  • Histological examination identified 7 lesions as malignant: anaplastic astrocytoma of the optic nerve in 1 patient, which recurred as glioblastoma of the optic nerve, malignant lymphoma of mucosa-associated lymphoid tissue type in 1 patient, malignant melanoma in 1 patient, adenoid cystic carcinoma in 2 patients, and adenocarcinoma (unknown origin) in 1 patient.
  • The T/N ratio was 1.06 +/- 0.03 (mean +/- standard deviation) in benign tumors, and significantly higher at 1.81 +/- 0.27 in malignant tumors (p = 0.0027).
  • [18F]FDG PET can determine the malignancy of orbital tumors, but cannot distinguish malignant tumor from inflammatory disease such as pseudotumor.
  • [MeSH-minor] Adenocarcinoma / radionuclide imaging. Adolescent. Adult. Aged. Astrocytoma / radionuclide imaging. Carcinoma, Adenoid Cystic / radionuclide imaging. Diagnosis, Differential. Female. Fluorine Radioisotopes. Fluorodeoxyglucose F18. Glioblastoma / radionuclide imaging. Hemangioma, Cavernous, Central Nervous System / radionuclide imaging. Humans. Lymphoma, B-Cell, Marginal Zone / radionuclide imaging. Male. Melanoma / radionuclide imaging. Middle Aged. Neurilemmoma / radionuclide imaging. Orbital Pseudotumor / radionuclide imaging. Radiopharmaceuticals. Young Adult

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  • (PMID = 19029776.001).
  • [ISSN] 1349-8029
  • [Journal-full-title] Neurologia medico-chirurgica
  • [ISO-abbreviation] Neurol. Med. Chir. (Tokyo)
  • [Language] eng
  • [Publication-type] Case Reports; Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Fluorine Radioisotopes; 0 / Radiopharmaceuticals; 0Z5B2CJX4D / Fluorodeoxyglucose F18
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60. Shibahara I, Kanamori M, Kumabe T, Endo H, Sonoda Y, Ogawa Y, Watanabe M, Tominaga T: Hemorrhagic onset of pilocytic astrocytoma and pilomyxoid astrocytoma. Brain Tumor Pathol; 2009;26(1):1-5
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  • [Title] Hemorrhagic onset of pilocytic astrocytoma and pilomyxoid astrocytoma.
  • The incidence of hemorrhagic onset in pilocytic astrocytoma and pilomyxoid astrocytoma, and the clinical and histological characteristics, were compared to other types of neuroepithelial tumors or nonhemorrhagic pilocytic astrocytoma by retrospective review of 445 consecutive neuroepithelial tumors treated at our institute.
  • Hemorrhagic onset was observed in 4 of 35 (11.4%) patients with pilocytic astrocytoma and pilomyxoid astrocytoma, with higher incidence than in glioblastoma (3.9%), anaplastic oligodendroglioma (7.7%), and anaplastic ependymoma (7.1%).
  • The hemorrhagic onset occurred in 2 patients with sporadic pilocytic astrocytoma, 1 with pilocytic astrocytoma associated with neurofibromatosis type 1, and 1 with pilomyxoid astrocytoma.
  • There was no correlation between hemorrhagic onset and clinical features, including age, sex, tumor location, proliferative activity, or microvascular proliferation.
  • Hemorrhagic onset of pilocytic astrocytoma and pilomyxoid astrocytoma is not as uncommon as was previously thought, so pilocytic astrocytoma or pilomyxoid astrocytoma should be considered in the differential diagnosis of patients with brain tumors manifesting as hemorrhagic onset.
  • [MeSH-major] Astrocytoma / complications. Astrocytoma / pathology. Brain Neoplasms / complications. Brain Neoplasms / pathology. Intracranial Hemorrhages / etiology. Intracranial Hemorrhages / pathology

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  • (PMID = 19408090.001).
  • [ISSN] 1861-387X
  • [Journal-full-title] Brain tumor pathology
  • [ISO-abbreviation] Brain Tumor Pathol
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] Japan
  • [Chemical-registry-number] 0 / Ki-67 Antigen
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61. Laczko R, Szauter KM, Jansen MK, Hollosi P, Muranyi M, Molnar J, Fong KS, Hinek A, Csiszar K: Active lysyl oxidase (LOX) correlates with focal adhesion kinase (FAK)/paxillin activation and migration in invasive astrocytes. Neuropathol Appl Neurobiol; 2007 Dec;33(6):631-43
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  • We have recently reported the ECM enzyme, lysyl oxidase (LOX), in the central nervous system and observed up-regulation of LOX in anaplastic astrocytoma cells.
  • In this study, we tested the hypothesis that active LOX is expressed in anaplastic astrocytes and promotes FAK activation and invasive/migratory behaviour.
  • Results demonstrate that increased expression and activity of LOX positively correlated with invasive phenotype of malignant astrocytoma cell lines.
  • Immunohistochemistry detected increased LOX within tumour cells and ECM in grade I-IV astrocytic neoplasm compared with normal brain and coincidence of increased LOX with the loss of glial fibrillary acidic protein in higher-grade tumours.
  • These results demonstrate an important LOX-mediated mechanism that promotes migratory/invasive behaviour of malignant astrocytes.
  • [MeSH-minor] Astrocytoma / enzymology. Blotting, Western. Cell Line, Tumor. Cell Movement / physiology. Humans. Immunohistochemistry. Neoplasm Invasiveness. Reverse Transcriptase Polymerase Chain Reaction

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  • (PMID = 17931358.001).
  • [ISSN] 0305-1846
  • [Journal-full-title] Neuropathology and applied neurobiology
  • [ISO-abbreviation] Neuropathol. Appl. Neurobiol.
  • [Language] eng
  • [Grant] United States / NIAMS NIH HHS / AR / AR47713; United States / NCRR NIH HHS / RR / G12RR003096
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Paxillin; EC 1.4.3.13 / Protein-Lysine 6-Oxidase; EC 2.7.10.2 / Focal Adhesion Protein-Tyrosine Kinases
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62. Marie SK, Okamoto OK, Uno M, Hasegawa AP, Oba-Shinjo SM, Cohen T, Camargo AA, Kosoy A, Carlotti CG Jr, Toledo S, Moreira-Filho CA, Zago MA, Simpson AJ, Caballero OL: Maternal embryonic leucine zipper kinase transcript abundance correlates with malignancy grade in human astrocytomas. Int J Cancer; 2008 Feb 15;122(4):807-15
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  • [Title] Maternal embryonic leucine zipper kinase transcript abundance correlates with malignancy grade in human astrocytomas.
  • We have performed cDNA microarray analyses to identify gene expression differences between highly invasive glioblastoma multiforme (GBM) and typically benign pilocytic astrocytomas (PA).
  • Despite the significant clinical and pathological differences between the 2 tumor types, only 63 genes were found to exhibit 2-fold or greater overexpression in GBM as compared to PA.
  • In the examination of more than 100 tumors of the central nervous system, we found progressively higher expression of MELK with astrocytoma grade and a noteworthy uniformity of high level expression in GBM.
  • We found neither gene promoter hypomethylation nor amplification to be a factor in MELK expression, but were able to demonstrate that MELK knockdown in malignant astrocytoma cell lines caused a reduction in proliferation and anchorage-independent growth in in vitro assays.
  • Among them, MELK correlated with malignancy grade in astrocytomas and represents a therapeutic target for the management of the most frequent brain tumors in adult and children.
  • [MeSH-major] Astrocytoma / genetics. Gene Expression Profiling. Gene Expression Regulation, Neoplastic. Glioblastoma / genetics. Protein-Serine-Threonine Kinases / genetics
  • [MeSH-minor] Adult. Apoptosis. Brain / metabolism. Brain Neoplasms / genetics. Brain Neoplasms / pathology. Cell Proliferation. Child. DNA Methylation. Gene Dosage. Humans. Oligonucleotide Array Sequence Analysis. Promoter Regions, Genetic. RNA, Small Interfering / pharmacology. Reverse Transcriptase Polymerase Chain Reaction. Tumor Cells, Cultured

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  • [Copyright] (c) 2007 Wiley-Liss, Inc.
  • (PMID = 17960622.001).
  • [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 / RNA, Small Interfering; EC 2.7.1.- / MELK protein, human; EC 2.7.11.1 / Protein-Serine-Threonine Kinases
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63. Nagatani M, Yamakawa S, Ando R, Edamoto H, Saito T, Tamura K: Highly invasive intracranial malignant schwannoma in a rat. J Toxicol Pathol; 2009 Jun;22(2):139-42

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  • [Title] Highly invasive intracranial malignant schwannoma in a rat.
  • A highly invasive intracranial malignant schwannoma containing several masses was detected in a 28-week-old male Crl:CD(SD) rat.
  • The tumor cells invaded not only the brain but also the parietal bone.
  • In the brain, the tumor cells infiltrated diffusely into the leptomeningeal and perivascular spaces and parenchyma, in which the tumor cell morphology and invasive pattern closely resembled those of malignant astrocytoma and malignant reticulosis.
  • Immunohistochemically, the tumor cells in the masses showed positive reactions for both S-100 protein and GFAP, while those in the cerebral invasion sites were negative for GFAP and less positive for S-100 protein.
  • Electron microscopically, a single basal lamina layer and short intricate cell processes were confirmed in the tumor cells.
  • From these results, the present tumor was diagnosed as a malignant schwannoma arising in the cranial cavity, probably originating from the trigeminal nerve.
  • The present tumor is considered to be a relatively unique malignant schwannoma based on its growth and invasion patterns.

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  • (PMID = 22271987.001).
  • [ISSN] 0914-9198
  • [Journal-full-title] Journal of toxicologic pathology
  • [ISO-abbreviation] J Toxicol Pathol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Japan
  • [Other-IDs] NLM/ PMC3246059
  • [Keywords] NOTNLM ; cranial cavity / malignant schwannoma / rat / spontaneous
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64. Gopalakrishna-Pillai S, Iverson LE: Astrocytes derived from trisomic human embryonic stem cells express markers of astrocytic cancer cells and premalignant stem-like progenitors. BMC Med Genomics; 2010 Apr 27;3:12
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  • [Title] Astrocytes derived from trisomic human embryonic stem cells express markers of astrocytic cancer cells and premalignant stem-like progenitors.
  • Since most hESC-based therapies will utilize differentiated derivatives, it is imperative to investigate the potential of trisomic hESCs to undergo malignant transformation during differentiation prior to their use in the clinical setting.
  • METHODS: Diploid and trisomic hESCs were differentiated into astrocytic progenitors cells (APCs), RNA extracted and hybridized to human exon-specific microarrays.
  • Global gene expression profiles of diploid and trisomic APCs were compared to that of an astrocytoma cell line and glioblastoma samples, analyzed by others, using the same microarray platform.
  • RESULTS: Bioinformatic analysis of microarray data indicates that differentiated trisomic APCs exhibit global expression profiles with similarities to the malignant astrocytoma cell line.
  • An analogous trend is observed in comparison to glioblastoma samples indicating that trisomic APCs express markers of astrocytic cancer cells.
  • The analysis also allowed identification of transcripts predicted to be differentially expressed in brain tumor stem cells.
  • These data indicate that in vitro differentiation of trisomic hESCs along astrocytic pathways give rise to cells exhibiting properties of premalignant astrocytic stem/progenitor cells.
  • This in vitro culture system can be used to elucidate changes in gene expression occurring enroute to malignant transformation and to identify molecular markers of cancer stem/progenitor cells.

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  • (PMID = 20423517.001).
  • [ISSN] 1755-8794
  • [Journal-full-title] BMC medical genomics
  • [ISO-abbreviation] BMC Med Genomics
  • [Language] ENG
  • [Grant] United States / NCI NIH HHS / CA / 5P30CA033572
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Biomarkers, Tumor
  • [Other-IDs] NLM/ PMC2873256
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65. Bucci B, Misiti S, Cannizzaro A, Marchese R, Raza GH, Miceli R, Stigliano A, Amendola D, Monti O, Biancolella M, Amati F, Novelli G, Vecchione A, Brunetti E, De Paula U: Fractionated ionizing radiation exposure induces apoptosis through caspase-3 activation and reactive oxygen species generation. Anticancer Res; 2006 Nov-Dec;26(6B):4549-57
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  • In particular, post-operative RT is considered the standard treatment adjuvant to surgery since its ability to prolong median survival of patients with malignant astrocytoma has been shown; nevertheless the ionizing radiation (IR) treatment fails in a considerable number of astrocytoma patients.
  • MATERIALS AND METHODS: Using an ADF human astrocytoma cell line the molecular mechanisms involved in the DNA damage induced by fractionated irradiation (FIR) and single IR treatment have been investigated.
  • RESULTS: FIR and single IR treatment inhibited the growth of the ADF human astrocytoma cell line.
  • [MeSH-major] Astrocytoma / metabolism. Brain Neoplasms / metabolism. Caspase 3 / metabolism. Radiation, Ionizing. Reactive Oxygen Species / metabolism
  • [MeSH-minor] Apoptosis. Blotting, Western. Cell Line, Tumor. Dose Fractionation. Enzyme Activation. Humans. Oligonucleotide Array Sequence Analysis


66. McGirt MJ, Mukherjee D, Chaichana KL, Than KD, Weingart JD, Quinones-Hinojosa A: Association of surgically acquired motor and language deficits on overall survival after resection of glioblastoma multiforme. Neurosurgery; 2009 Sep;65(3):463-9; discussion 469-70
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  • OBJECTIVE: Balancing the benefits of extensive tumor resection with the consequence of potential postoperative deficits remains a challenge in malignant astrocytoma surgery.


67. Serrano J, Rayo JI, Infante JR, Domínguez L, García-Bernardo L, Durán C, Fernández Portales I, Cabezudo JM: Radioguided surgery in brain tumors with thallium-201. Clin Nucl Med; 2008 Dec;33(12):838-40
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  • RATIONALE: Malignant astrocytomas show thallium uptake with a high target-to-background ratio, allowing the use of radioguided surgery.
  • METHOD: We report on 6 patients (3 men) diagnosed with malignant astrocytoma.
  • With the gamma probe we confirmed the tumor uptake, and a biopsy sample was taken.
  • After conventional tumor resection, we scanned the surgical bed with the gamma probe.
  • RESULTS: In all patients the biopsy confirmed a high-grade astrocytoma.
  • In all cases we found residual uptake in the surgical bed that was confirmed as residual tumor by pathologic examination.

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  • (PMID = 19033782.001).
  • [ISSN] 1536-0229
  • [Journal-full-title] Clinical nuclear medicine
  • [ISO-abbreviation] Clin Nucl Med
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Thallium Radioisotopes
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68. Combs SE, Ellerbrock M, Haberer T, Habermehl D, Hoess A, Jäkel O, Jensen A, Klemm S, Münter M, Naumann J, Nikoghosyan A, Oertel S, Parodi K, Rieken S, Debus J: Heidelberg Ion Therapy Center (HIT): Initial clinical experience in the first 80 patients. Acta Oncol; 2010 Oct;49(7):1132-40
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  • Main treated indications consisted of skull base chordoma (n = 9) and chondrosarcoma (n = 18), malignant salivary gland tumors (n=29), chordomas of the sacrum (n = 5), low grade glioma (n=3), primary and recurrent malignant astrocytoma and glioblastoma (n=7) and well as osteosarcoma (n = 3).

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  • (PMID = 20831505.001).
  • [ISSN] 1651-226X
  • [Journal-full-title] Acta oncologica (Stockholm, Sweden)
  • [ISO-abbreviation] Acta Oncol
  • [Language] eng
  • [Publication-type] Evaluation Studies; Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Ions; 0 / Protons; 7440-44-0 / Carbon
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69. Ulrich TA, de Juan Pardo EM, Kumar S: The mechanical rigidity of the extracellular matrix regulates the structure, motility, and proliferation of glioma cells. Cancer Res; 2009 May 15;69(10):4167-74
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  • Glioblastoma multiforme (GBM) is a malignant astrocytoma of the central nervous system associated with a median survival time of 15 months, even with aggressive therapy.
  • This rapid progression is due in part to diffuse infiltration of single tumor cells into the brain parenchyma, which is thought to involve aberrant interactions between tumor cells and the extracellular matrix (ECM).
  • Here, we test the hypothesis that mechanical cues from the ECM contribute to key tumor cell properties relevant to invasion.
  • We cultured a series of glioma cell lines (U373-MG, U87-MG, U251-MG, SNB19, C6) on fibronectin-coated polymeric ECM substrates of defined mechanical rigidity and investigated the role of ECM rigidity in regulating tumor cell structure, migration, and proliferation.
  • On highly rigid ECMs, tumor cells spread extensively, form prominent stress fibers and mature focal adhesions, and migrate rapidly.
  • As ECM rigidity is lowered to values comparable with normal brain tissue, tumor cells appear rounded and fail to productively migrate.
  • Collectively, our results provide support for a novel model in which ECM rigidity provides a transformative, microenvironmental cue that acts through actomyosin contractility to regulate the invasive properties of GBM tumor cells.

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  • (PMID = 19435897.001).
  • [ISSN] 1538-7445
  • [Journal-full-title] Cancer research
  • [ISO-abbreviation] Cancer Res.
  • [Language] ENG
  • [Grant] United States / NIH HHS / OD / DP2 OD004213; United States / NIH HHS / OD / OD004213-01; United States / NIH HHS / OD / 1DP2OD004213; United States / NIH HHS / OD / DP2 OD004213-01
  • [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 / Fibronectins; 9013-26-7 / Actomyosin
  • [Other-IDs] NLM/ NIHMS105478; NLM/ PMC2727355
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70. Winters BS, Shepard SR, Foty RA: Biophysical measurement of brain tumor cohesion. Int J Cancer; 2005 Apr 10;114(3):371-9
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  • [Title] Biophysical measurement of brain tumor cohesion.
  • An advantage of using 3D multicellular spheres to study tumor biology is that they better approximate the interactions encountered by cells in vivo.
  • This liquid-like behavior enables us to measure a key property influencing tumor behavior, namely, intercellular cohesion.
  • This study utilizes TST to measure the cohesivity of 3 widely used malignant astrocytoma cell lines of different in vitro invasive potentials.
  • We show that the cell lines exhibit liquid-like behavior since they form spheroids whose surface tension is both force- and volume-independent; that aggregates from each cell line have a distinct surface tension that correlates with their in vitro invasive capacity; that dexamethasone (Dex), a widely used therapeutic agent for the treatment of tumor-related cerebral edema, increases aggregate cohesivity and decreases invasiveness; that dexamethasone treatment decreases invasion in a dose-dependent manner but only when cells are in direct contact with one another; and that dex-mediated decreased invasiveness correlates with increased aggregate cohesivity as measured by TST but not with N-cadherin expression or function.
  • [MeSH-major] Brain Neoplasms / pathology. Cell Adhesion. Models, Biological. Neoplasm Invasiveness / physiopathology. Spheroids, Cellular

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  • [Copyright] (c) 2004 Wiley-Liss, Inc.
  • (PMID = 15551307.001).
  • [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 / Glucocorticoids; 7S5I7G3JQL / Dexamethasone
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71. Attenello FJ, Mukherjee D, Datoo G, McGirt MJ, Bohan E, Weingart JD, Olivi A, Quinones-Hinojosa A, Brem H: Use of Gliadel (BCNU) wafer in the surgical treatment of malignant glioma: a 10-year institutional experience. Ann Surg Oncol; 2008 Oct;15(10):2887-93
The Lens. Cited by Patents in .

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Use of Gliadel (BCNU) wafer in the surgical treatment of malignant glioma: a 10-year institutional experience.
  • BACKGROUND: Gliadel (polifeprosan 20 with carmustine [BCNU] implant) is commonly used for local delivery of BCNU to high-grade gliomas after resection and is associated with increased survival.
  • We set out to characterize Gliadel-associated morbidity in our 10-year experience with Gliadel wafers for treatment of malignant glioma.
  • METHODS: We retrospectively reviewed records of 1013 patients undergoing craniotomy for resection of malignant brain astrocytoma (World Health Organization grade III/IV disease).
  • RESULTS: A total of 1013 craniotomies were performed for malignant brain astrocytoma.
  • A total of 288 (28%) received Gliadel wafer (250 glioblastoma multiforme (GBM), 38 anaplastic astrocytoma/anaplastic oligodendroglioma (AA/AO), 166 primary resection, 122 revision resection).
  • Patients in Gliadel versus non-Gliadel cohorts had similar incidences of perioperative surgical site infection (2.8% vs. 1.8%, P = .33), cerebrospinal fluid leak (2.8% vs. 1.8%, P = .33), meninigitis (.3% vs. .3%, P = 1.00), incisional wound healing difficulty (.7% vs. .4%, P = .63), symptomatic malignant edema (2.1% vs. 2.3%, P = 1.00), 3-month seizure incidence (14.6% vs. 15.7%, P = .65), deep-vein thrombosis (6.3% vs. 5.2%, P = .53), and pulmonary embolism (PE) (4.9% vs. 3.7%, P = .41).
  • CONCLUSION: In our experience, use of Gliadel wafer was not associated with an increase in perioperative morbidity after surgical treatment of malignant astrocytoma.

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  • (PMID = 18636295.001).
  • [ISSN] 1534-4681
  • [Journal-full-title] Annals of surgical oncology
  • [ISO-abbreviation] Ann. Surg. Oncol.
  • [Language] eng
  • [Publication-type] Clinical Trial; Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Antineoplastic Agents, Alkylating; 0 / Biocompatible Materials; 0 / Decanoic Acids; 0 / Drug Carriers; 0 / Polyesters; 90409-78-2 / decanedioic acid-4,4'-(1,3-propanediylbis(oxy))bis(benzoic acid) copolymer; U68WG3173Y / Carmustine
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72. Reznik TE, Sang Y, Ma Y, Abounader R, Rosen EM, Xia S, Laterra J: Transcription-dependent epidermal growth factor receptor activation by hepatocyte growth factor. Mol Cancer Res; 2008 Jan;6(1):139-50
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  • Epidermal growth factor receptor (EGFR) and c-Met are frequently coexpressed in cancers, including those associated with hepatocyte growth factor (HGF) overexpression, such as malignant astrocytoma.

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  • (PMID = 18234969.001).
  • [ISSN] 1541-7786
  • [Journal-full-title] Molecular cancer research : MCR
  • [ISO-abbreviation] Mol. Cancer Res.
  • [Language] ENG
  • [Grant] United States / NINDS NIH HHS / NS / R01 NS032148; United States / NINDS NIH HHS / NS / R01 NS043987; United States / NINDS NIH HHS / NS / NS043987-03; United States / NIEHS NIH HHS / ES / ES 09169; United States / NIEHS NIH HHS / ES / R01 ES009169; United States / NINDS NIH HHS / NS / NS 43987; United States / NINDS NIH HHS / NS / NS 32148; United States / NINDS NIH HHS / NS / R01 NS032148-13; United States / NINDS NIH HHS / NS / R01 NS043987-03; United States / NINDS NIH HHS / NS / NS032148-13
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Bacterial Proteins; 0 / HBEGF protein, human; 0 / Heparin-binding EGF-like Growth Factor; 0 / Intercellular Signaling Peptides and Proteins; 0 / Ligands; 0 / RNA, Messenger; 0 / RNA, Small Interfering; 0 / Transforming Growth Factor alpha; 21820-51-9 / Phosphotyrosine; 67256-21-7 / Hepatocyte Growth Factor; 92092-36-9 / CRM197 (non-toxic variant of diphtheria toxin); EC 2.7.10.1 / Receptor, Epidermal Growth Factor; EC 2.7.11.24 / Mitogen-Activated Protein Kinases
  • [Other-IDs] NLM/ NIHMS135584; NLM/ PMC2839502
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73. Bhat SR, Goodwin TL, Burwinkle TM, Lansdale MF, Dahl GV, Huhn SL, Gibbs IC, Donaldson SS, Rosenblum RK, Varni JW, Fisher PG: Profile of daily life in children with brain tumors: an assessment of health-related quality of life. J Clin Oncol; 2005 Aug 20;23(24):5493-500
ClinicalTrials.gov. clinical trials - ClinicalTrials.gov .

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • RESULTS: One hundred thirty-four patients (73 male; mean age +/- standard deviation, 11.8 +/- 5.4 years; 55 had low-grade glioma, 32 had medulloblastoma/primitive neuroectodermal tumor/embryonal tumor, 17 had malignant astrocytoma, nine had germ-cell tumor, and 21 had other types of tumors) were assessed, each in less than 20 minutes.
  • Patients with low-grade glioma were reported to have the highest total HRQOL.

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  • [CommentIn] J Clin Oncol. 2005 Aug 20;23(24):5424-6 [16110000.001]
  • (PMID = 16110009.001).
  • [ISSN] 0732-183X
  • [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; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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74. Guan X, Lai S, Lackey J, Shi J, Techavipoo U, Moulding HD, Flanders AE, Andrews DW: Revisiting anaplastic astrocytomas II: further characterization of an expansive growth pattern with visually enhanced diffusion tensor imaging. J Magn Reson Imaging; 2008 Dec;28(6):1322-36
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Revisiting anaplastic astrocytomas II: further characterization of an expansive growth pattern with visually enhanced diffusion tensor imaging.
  • PURPOSE: To seek to distinguish and visualize the different magnetic resonance imaging (MRI) growth patterns among malignant gliomas utilizing visually enhanced diffusion tensor imaging (DTI).
  • MATERIALS AND METHODS: Nineteen consecutive patients undergoing image-guided resection of a newly diagnosed malignant glioma underwent add-on acquisition of DTI data based on an Institutional Review Board (IRB)-approved imaging protocol during preoperative MRI scans for routine intraoperative image guidance.
  • Tumor growth patterns were assigned to expansive or mixed/infiltrative classes as described in the companion article (24).
  • Infiltrating tumors were WHO Grade IV astrocytomas and all expansive tumors were either WHO Grade III astrocytomas or WHO Grade II astrocytomas.
  • DTI-based white matter tractography was conducted and the DTI data were fused with anatomical images using an in-house software package we developed to enhance the visualization of the tumor/fiber interface.
  • RESULTS: Out of the 19 tumor patients studied, 11 had infiltrative tumors and the other 8 had expansive tumors.
  • While less clear with 2D axial diffusion color maps, visually enhanced 3D reconstructions of the tumor/fiber interface successfully corroborated distinctive growth patterns.
  • This was particularly evident when viewed in 3D video loops of each tumor/fiber interface.
  • CONCLUSION: We have successfully developed software that visually enhances the anatomic details of the tumor/fiber interface in patients with anaplastic astrocytomas.
  • These data support the existence of a subgroup of patients within the WHO Grade III classification with expansive tumors and a significantly better prognosis.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Diffusion Magnetic Resonance Imaging / methods. Image Enhancement / methods. Image Processing, Computer-Assisted
  • [MeSH-minor] Adult. Aged. Female. Humans. Imaging, Three-Dimensional. Magnetic Resonance Imaging, Interventional. Male. Middle Aged. Neoplasm Staging

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  • [Copyright] (c) 2008 Wiley-Liss, Inc.
  • (PMID = 19025901.001).
  • [ISSN] 1053-1807
  • [Journal-full-title] Journal of magnetic resonance imaging : JMRI
  • [ISO-abbreviation] J Magn Reson Imaging
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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75. Garcés-Ambrossi GL, McGirt MJ, Mehta VA, Sciubba DM, Witham TF, Bydon A, Wolinksy JP, Jallo GI, Gokaslan ZL: Factors associated with progression-free survival and long-term neurological outcome after resection of intramedullary spinal cord tumors: analysis of 101 consecutive cases. J Neurosurg Spine; 2009 Nov;11(5):591-9
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  • However, factors associated with tumor resectability, tumor recurrence, and long-term neurological outcome are poorly understood.
  • Pathological type included ependymoma in 51 cases, hemangioblastoma in 15, pilocytic astrocytoma in 16, WHO Grade II astrocytoma in 10, and malignant astrocytoma in 9.
  • Independent of histological tumor type, an intraoperatively identifiable tumor plane (OR 25.3, p < 0.0001) and decreasing tumor size (OR 1.2, p = 0.05) were associated with GTR.
  • In 31 patients (31%) tumor progression developed by last follow-up (mean 19 months).
  • Tumor histology (p < 0.0001) and the presence of an intraoperatively identified tumor plane (hazard ratio [HR] 0.44, p = 0.027) correlated with improved PFS.
  • A GTR resulted in improved PFS for hemangioblastoma (HR 0.004, p = 0.04) and ependymoma (HR 0.2, p = 0.02), but not astrocytoma.
  • The presence of an identifiable tumor plane (HR 3.1, p = 0.0004) and improvement in neurological symptoms before discharge (HR 2.3, p = 0.004) were associated with overall neurological improvement by last follow-up (mean 19 months).
  • CONCLUSIONS: Gross-total resection can be safely achieved in the vast majority of IMSCTs when an intraoperative plane is identified, independent of pathological type.
  • A GTR should be attempted for ependymoma and hemangioblastoma, but it may not affect PFS for astrocytoma.
  • For all tumors, the intraoperative finding of a clear tumor plane of resection carries positive prognostic significance across all pathological types.
  • [MeSH-minor] Adolescent. Adult. Astrocytoma / mortality. Astrocytoma / pathology. Astrocytoma / surgery. Disease Progression. Disease-Free Survival. Ependymoma / mortality. Ependymoma / pathology. Ependymoma / surgery. Female. Follow-Up Studies. Humans. Kaplan-Meier Estimate. Magnetic Resonance Imaging. Male. Middle Aged. Predictive Value of Tests. Prognosis. Recovery of Function. Retrospective Studies. Risk Factors. Therapeutics. Young Adult

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  • [CommentIn] J Neurosurg Spine. 2009 Nov;11(5):588-9; discussion 590 [19929362.001]
  • (PMID = 19929363.001).
  • [ISSN] 1547-5646
  • [Journal-full-title] Journal of neurosurgery. Spine
  • [ISO-abbreviation] J Neurosurg Spine
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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76. Adam Y, Benezech J, Blanquet A, Fuentes JM, Bousigue JY, Debono B, Duplessis E, Espagno C, Plas JY, Lescure JP, Destandau J, Hladky JP, Grunewald P, Mahla K, Remond J, Louis E: [Intramedullary tumors. Results of a national investigation in private neurosurgery]. Neurochirurgie; 2010 Aug;56(4):344-9

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • MATERIAL: Seventy-nine cases were distributed in the following manner: ependymomas, 38; astrocytomas, 22; oligodendrogliomas, four; gangliogliomas, two; hemangioblastomas, 10 (nine sporadic cases and one case of Von Hippel-Lindau disease); primitive melanoma, one; and intramedullary neurinomas, two.
  • Tumor removal was complete in the cases of ependymoma and hemangioblastoma and subtotal in the cases of astrocytoma.
  • Astrocytomas: 22 cases, with 14 cases of astrocytoma, two pilocytic astrocytoma, four malignant astrocytoma, and two glioblastoma.
  • Diagnostic delay: malignant tumors, one to nine months; low grades; three to six years (range, eight months to 25 years).
  • [MeSH-minor] Adolescent. Adult. Aged. Delayed Diagnosis. Female. Follow-Up Studies. France / epidemiology. Humans. Magnetic Resonance Imaging. Male. Microsurgery. Middle Aged. Neoplasm Recurrence, Local. Neurosurgical Procedures. Treatment Outcome. Young Adult

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  • [Copyright] Copyright (c) 2010 Elsevier Masson SAS. All rights reserved.
  • (PMID = 20097390.001).
  • [ISSN] 1773-0619
  • [Journal-full-title] Neuro-Chirurgie
  • [ISO-abbreviation] Neurochirurgie
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article
  • [Publication-country] France
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77. Grzelak P, Górska-Chrzastek M, Gajewicz W, Kuśmierek J, Tybor K, Stefańczyk L: Recurrent cerebral gliomas in MRI and Iodine-123[corrected]-alpha-methyl-tyrosine SPECT: the use of digitally fused images. Nucl Med Rev Cent East Eur; 2005;8(2):94-9
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  • Diagnosis was based on histopathology results (8 cases of anaplastic astrocytoma and 13 cases of multiform glioblastoma).
  • CONCLUSIONS: The consistency of tumour locations detected with MR and SPECT was higher for tumours of the anaplastic astrocytoma type than for multiform glioblastomas (higher polymorphism of pathological changes).
  • [MeSH-major] Brain Neoplasms / diagnosis. Glioma / diagnosis. Image Enhancement / methods. Image Interpretation, Computer-Assisted / methods. Magnetic Resonance Imaging / methods. Neoplasm Recurrence, Local / radionuclide imaging. Tomography, Emission-Computed, Single-Photon / methods

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  • [ErratumIn] Nucl Med Rev Cent East Eur. 2006;9(1):93
  • (PMID = 16437393.001).
  • [ISSN] 1506-9680
  • [Journal-full-title] Nuclear medicine review. Central & Eastern Europe
  • [ISO-abbreviation] Nucl Med Rev Cent East Eur
  • [Language] eng
  • [Publication-type] Clinical Trial; Journal Article
  • [Publication-country] Poland
  • [Chemical-registry-number] 0 / Radiopharmaceuticals
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78. Gathinji M, McGirt MJ, Attenello FJ, Chaichana KL, Than K, Olivi A, Weingart JD, Brem H, Quinones-Hinojosa A: Association of preoperative depression and survival after resection of malignant brain astrocytoma. Surg Neurol; 2009 Mar;71(3):299-303, discussion 303
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  • [Title] Association of preoperative depression and survival after resection of malignant brain astrocytoma.
  • It remains unclear if clinical depression affects survival after surgical management of malignant brain astrocytoma.
  • METHODS: One thousand fifty-two patients undergoing surgical management for malignant brain astrocytoma (WHO grade 3 or 4) performed at a single institution from 1995 to 2006 were retrospectively reviewed.
  • Pathology was WHO grade IV in 829 (79%) and grade III in 223 (21%).
  • Adjusting for all variables associated with survival in this model, age (P < .001), KPS (P < .001), WHO grade III vs IV (P < .001), primary versus secondary resection (P < .001), gross-total resection (P < .001), Gliadel wafer implantation (P = .048), postoperative temozolomide therapy (P < .001), and subsequent resection at time of recurrence (P < .001); preoperative depression was independently associated with decreased survival (relative risk [95% CI]: 1.41 [1.1-1.96], P < .05).
  • CONCLUSION: In our experience, patients who are actively depressed at the time of surgery were associated with decreased survival after surgical management of malignant astrocytoma, independent of degree of disability, tumor grade, or subsequent treatment modalities.
  • [MeSH-major] Astrocytoma / mortality. Brain Neoplasms / mortality. Depression / mortality

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  • (PMID = 18786716.001).
  • [ISSN] 0090-3019
  • [Journal-full-title] Surgical neurology
  • [ISO-abbreviation] Surg Neurol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
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79. Omar AI, Mason WP: Temozolomide: The evidence for its therapeutic efficacy in malignant astrocytomas. Core Evid; 2010 Jun 15;4:93-111

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  • [Title] Temozolomide: The evidence for its therapeutic efficacy in malignant astrocytomas.
  • INTRODUCTION: Malignant gliomas are a heterogeneous group of primary central nervous system neoplasms that represent less than 2% of all cancers yet carry a significant burden to society.
  • Temozolomide (TMZ) is a new second generation DNA alkylating agent that has become part of malignant astrocytoma management paradigms because of its proven efficacy, ease of administration, and favorable toxicity profile.
  • AIMS: To review the role of TMZ in the management of malignant astrocytomas (World Health Organization grades III and IV) including newly diagnosed (n) and recurrent (r) anaplastic astrocytomas (AA) and glioblastomas.
  • EVIDENCE REVIEW: A series of pivotal clinical trials have established a role for TMZ in the treatment of malignant astrocytomas.
  • A recent large prospective randomized phase III trial showed that the addition of TMZ during and after radiation therapy (RT) in newly diagnosed (nGBM) patients prolonged median overall survival by 2.5 months; perhaps more importantly, the 2-year survival rate for patients receiving TMZ and RT was 26% compared with 10% for those receiving RT alone.

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  • (PMID = 20694068.001).
  • [ISSN] 1555-175X
  • [Journal-full-title] Core evidence
  • [ISO-abbreviation] Core Evid
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] New Zealand
  • [Other-IDs] NLM/ PMC2899776
  • [Keywords] NOTNLM ; anaplastic astrocytoma / evidence / glioblastoma / glioma / malignant astrocytoma / temozolomide
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80. Lin C, Ma L, Yin J, Chen J: [A medical image semantic modeling based on hierarchical Bayesian networks]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi; 2009 Apr;26(2):400-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • As for the validity of this method, we have built a multi-level semantic model from a small set of astrocytoma MRI (magnetic resonance imaging) samples, in order to extract semantics of astrocytoma in malignant degree.
  • [MeSH-minor] Artificial Intelligence. Astrocytoma / diagnosis. Brain Neoplasms / diagnosis. Humans. Image Interpretation, Computer-Assisted / methods. Semantics

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  • (PMID = 19499811.001).
  • [ISSN] 1001-5515
  • [Journal-full-title] Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
  • [ISO-abbreviation] Sheng Wu Yi Xue Gong Cheng 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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81. Yoshida T, Niwa F, Kimura S, Nakagawa M: Anaplastic astrocytoma presenting as reversible posterior leukoencephalopathy syndrome. Neurologist; 2006 Nov;12(6):311-3
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  • [Title] Anaplastic astrocytoma presenting as reversible posterior leukoencephalopathy syndrome.
  • We report a 60-year-old man with grade III astrocytoma, who presented with status epilepticus.
  • The initial MRI did not demonstrate typical findings of an astrocytoma but rather showed reversible posterior leukoencephalopathy syndrome (RPLS).
  • A brain tumor should be considered and the patient carefully followed by MRI, even if the MRI white matter lesion pattern suggests RPLS.
  • [MeSH-major] Astrocytoma / diagnosis. Brain Diseases / diagnosis. Occipital Lobe / pathology

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  • (PMID = 17122727.001).
  • [ISSN] 1074-7931
  • [Journal-full-title] The neurologist
  • [ISO-abbreviation] Neurologist
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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82. Nagatani M, Ando R, Yamakawa S, Saito T, Tamura K: Histological and immunohistochemical studies on spontaneous rat astrocytomas and malignant reticulosis. Toxicol Pathol; 2009 Aug;37(5):599-605

  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] Histological and immunohistochemical studies on spontaneous rat astrocytomas and malignant reticulosis.
  • Among spontaneous neoplasms of the rat central nervous system, the discrimination between astrocytoma and malignant reticulosis (MR) is sometimes difficult because of their similar cell morphology and infiltration patterns.
  • These cases were diagnosed as benign/malignant astrocytoma containing no neoplastic oligodendroglial elements or MR according to the diagnostic criteria of the World Health Organization International Classification of Rodent Tumors (Mohr et al. 1994).
  • Astrocytomas were divided into three types and MR into two types based on the number of lesions, cellularity and infiltration patterns, and so on.
  • None of the tumor types showed any reactivity for GFAP or S-100 protein.
  • From the results of morphological and immunohistochemical examinations, it was indicated that there are no distinctive differences between spontaneous astrocytomas and MR in rats, and they are probably derived from the same cell lineage, that is, microglia, macrophage, or radial glia.
  • [MeSH-major] Astrocytoma / metabolism. Astrocytoma / pathology. Central Nervous System Neoplasms / metabolism. Central Nervous System Neoplasms / pathology

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  • (PMID = 19487256.001).
  • [ISSN] 1533-1601
  • [Journal-full-title] Toxicologic pathology
  • [ISO-abbreviation] Toxicol Pathol
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Nerve Tissue Proteins; 0 / Vimentin
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83. Rao RD, Krishnan S, Fitch TR, Schomberg PJ, Dinapoli RP, Nordstrom K, Scheithauer B, O'Fallon JR, Maurer MJ, Buckner JC: Phase II trial of carmustine, cisplatin, and oral etoposide chemotherapy before radiotherapy for grade 3 astrocytoma (anaplastic astrocytoma): results of North Central Cancer Treatment Group trial 98-72-51. Int J Radiat Oncol Biol Phys; 2005 Feb 1;61(2):380-6
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  • [Title] Phase II trial of carmustine, cisplatin, and oral etoposide chemotherapy before radiotherapy for grade 3 astrocytoma (anaplastic astrocytoma): results of North Central Cancer Treatment Group trial 98-72-51.
  • PURPOSE: To evaluate the efficacy of preradiotherapy (RT) chemotherapy with carmustine, cisplatin, and oral etoposide combined with RT in the treatment of newly diagnosed anaplastic astrocytoma.
  • Grade 3-4 toxicities were observed in 14 patients (48%).
  • The primary study endpoint was the 23-month (700-day) survival, the median survival of patients with anaplastic astrocytoma in a previous North Central Cancer Treatment Group trial.
  • CONCLUSION: Our results have demonstrated that pre-RT chemotherapy with this regimen is insufficiently active in patients with anaplastic astrocytoma.
  • [MeSH-major] Antineoplastic Combined Chemotherapy Protocols / therapeutic use. Astrocytoma / drug therapy. Astrocytoma / radiotherapy. Brain Neoplasms / drug therapy. Brain Neoplasms / radiotherapy


84. Jang FF, Wei W, De WM: Vascular endothelial growth factor and basic fibroblast growth factor expression positively correlates with angiogenesis and peritumoural brain oedema in astrocytoma. J Ayub Med Coll Abbottabad; 2008 Apr-Jun;20(2):105-9
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  • [Title] Vascular endothelial growth factor and basic fibroblast growth factor expression positively correlates with angiogenesis and peritumoural brain oedema in astrocytoma.
  • BACKGROUND: Astrocytoma is the most malignant intracranial neoplasm and is characterized by high neovascularization and peritumoural brain oedema.
  • METHODS: The expression of two angiogenic growth factors, vascular endothelial growth factor and basic fibroblast growth factor were investigated using immunohistochemistry for astrocytoma from 82 patients and 11 normal human tissues.
  • RESULTS: The expression of vascular endothelial growth factor and basic fibroblast growth factor positively correlate with the pathological grade of astrocytoma, microvessel density numbers and brain oedema, which may be responsible for the increased tumour neovascularization and peritumoural brain oedema.
  • CONCLUSION: The results support the idea that inhibiting vascular endothelial growth factor and basic fibroblast growth factor are useful for the treatment of human astrocytoma and to improve patient's clinical outcomes and prognosis.
  • [MeSH-major] Astrocytoma / blood supply. Brain Edema / etiology. Brain Neoplasms / blood supply. Fibroblast Growth Factor 2 / biosynthesis. Neovascularization, Pathologic / metabolism. Vascular Endothelial Growth Factor A / biosynthesis

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  • (PMID = 19385471.001).
  • [ISSN] 1025-9589
  • [Journal-full-title] Journal of Ayub Medical College, Abbottabad : JAMC
  • [ISO-abbreviation] J Ayub Med Coll Abbottabad
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Pakistan
  • [Chemical-registry-number] 0 / Vascular Endothelial Growth Factor A; 103107-01-3 / Fibroblast Growth Factor 2
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85. Fujita A, Sato JR, Festa F, Gomes LR, Oba-Shinjo SM, Marie SK, Ferreira CE, Sogayar MC: Identification of COL6A1 as a differentially expressed gene in human astrocytomas. Genet Mol Res; 2008;7(2):371-8
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  • [Title] Identification of COL6A1 as a differentially expressed gene in human astrocytomas.
  • Gliomas are classified by the WHO according to their histopathological and clinical characteristics into four classes: grade I (pilocytic astrocytoma), grade II (diffuse astrocytoma), grade III (anaplastic astrocytoma), and grade IV (glioblastoma multiforme).
  • Several genes have already been correlated with astrocytomas, but many others are yet to be uncovered.
  • By analyzing the public SAGE data from 21 patients, comprising low malignant grade astrocytomas and glioblastomas, we found COL6A1 to be differentially expressed, confirming this finding by real time RT-PCR in 66 surgical samples.
  • The expression of this gene has significantly different means when normal glia is compared with low-grade astrocytomas (grades I and II) and high-grade astrocytomas (grades III and IV), with a tendency to be greater in higher grade samples, thus rendering it a powerful tumor marker.
  • [MeSH-major] Astrocytoma / genetics. Collagen Type VI / genetics. Gene Expression Profiling
  • [MeSH-minor] Gene Expression Regulation, Neoplastic. Humans. RNA, Neoplasm / genetics. RNA, Neoplasm / metabolism. Reverse Transcriptase Polymerase Chain Reaction

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  • (PMID = 18551403.001).
  • [ISSN] 1676-5680
  • [Journal-full-title] Genetics and molecular research : GMR
  • [ISO-abbreviation] Genet. Mol. Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] Brazil
  • [Chemical-registry-number] 0 / Collagen Type VI; 0 / RNA, Neoplasm
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86. Pavon LF, Marti LC, Sibov TT, Malheiros SM, Oliveira DM, Guilhen DD, Camargo-Mathias MI, Amaro Junior E, Gamarra LF: The ultrastructural study of tumorigenic cells using nanobiomarkers. Cancer Biother Radiopharm; 2010 Jun;25(3):289-98
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  • Despite recent advances, patients with malignant brain tumors still have a poor prognosis.
  • Glioblastoma (WHO grade 4 astrocytoma), the most malignant brain tumor, represents 50% of all astrocytomas, with a median survival rate of <1 year.
  • The process of tumor cell labeling using nanoparticles can successfully contribute to the identification of tumorigenic cells and consequently for better understanding of glioblastoma genesis and recurrence.
  • In addition, this method may help further studies in tumor imaging, diagnosis, and prognostic markers detection.
  • [MeSH-minor] Antibodies, Monoclonal / chemistry. Antibodies, Monoclonal / immunology. Antibodies, Monoclonal / metabolism. Antigens, CD / immunology. Antigens, CD / metabolism. Antigens, CD29 / immunology. Antigens, CD29 / metabolism. Antigens, CD44 / immunology. Antigens, CD44 / metabolism. Biomarkers / analysis. Biomarkers / chemistry. Cell Line, Tumor. Cell Membrane / metabolism. Cell Nucleus / metabolism. Cytoplasm / metabolism. Cytoplasmic Vesicles / metabolism. Endocytosis / immunology. Flow Cytometry. Forkhead Transcription Factors / chemistry. Forkhead Transcription Factors / metabolism. Glycoproteins / immunology. Glycoproteins / metabolism. Humans. Immunophenotyping. Magnetite Nanoparticles / chemistry. Microscopy, Electron, Transmission. Nanomedicine / methods. Peptides / immunology. Peptides / metabolism. Quantum Dots. Receptors, Cell Surface / immunology. Receptors, Cell Surface / metabolism. Tumor Cells, Cultured

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  • (PMID = 20578834.001).
  • [ISSN] 1557-8852
  • [Journal-full-title] Cancer biotherapy & radiopharmaceuticals
  • [ISO-abbreviation] Cancer Biother. Radiopharm.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / AC133 antigen; 0 / Antibodies, Monoclonal; 0 / Antigens, CD; 0 / Antigens, CD29; 0 / Antigens, CD44; 0 / Biomarkers; 0 / CD44 protein, human; 0 / ENG protein, human; 0 / FOXM1 protein, human; 0 / Forkhead Transcription Factors; 0 / Glycoproteins; 0 / Magnetite Nanoparticles; 0 / Peptides; 0 / Receptors, Cell Surface
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87. Kumar DM, Thota B, Shinde SV, Prasanna KV, Hegde AS, Arivazhagan A, Chandramouli BA, Santosh V, Somasundaram K: Proteomic identification of haptoglobin α2 as a glioblastoma serum biomarker: implications in cancer cell migration and tumor growth. J Proteome Res; 2010 Nov 5;9(11):5557-67
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  • [Title] Proteomic identification of haptoglobin α2 as a glioblastoma serum biomarker: implications in cancer cell migration and tumor growth.
  • Glioblastoma (GBM; grade IV astrocytoma) is the most malignant and common primary brain tumor in adults.
  • Using combination of 2-DE and MALDI-TOF MS, we analyzed 14 GBM and 6 normal control sera and identified haptoglobin α2 chain as an up-regulated serum protein in GBM patients.
  • GBM-specific up-regulation was confirmed by ELISA based quantitation of haptoglobin (Hp) in the serum of 99 GBM patients as against lower grades (49 grade III/AA; 26 grade II/DA) and 26 normal individuals (p = 0.0001).
  • Further validation using RT-qPCR on an independent set (n = 78) of tumor and normal brain (n = 4) samples and immunohistochemcial staining on a subset (n = 42) of above samples showed increasing levels of transcript and protein with tumor grade and were highest in GBM (p = <0.0001 and <0.0001, respectively).
  • Further, we demonstrate that both human glioma and mouse melanoma cells overexpressing Hp showed increased tumor growth.
  • Thus, we have identified haptoglobin as a GBM-specific serum marker with a role on glioma tumor growth and migration.
  • [MeSH-minor] Animals. Astrocytes / chemistry. Astrocytes / pathology. Biomarkers, Tumor / blood. Case-Control Studies. Cell Line, Tumor. Cell Movement. Cell Proliferation. Humans. Melanoma / chemistry. Melanoma / pathology. Mice. Up-Regulation

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  • (PMID = 20822092.001).
  • [ISSN] 1535-3907
  • [Journal-full-title] Journal of proteome research
  • [ISO-abbreviation] J. Proteome Res.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / HP protein, human; 0 / Haptoglobins
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88. Figarella-Branger D, Bouvier C: [Histological classification of human gliomas: state of art and controversies]. Bull Cancer; 2005 Apr;92(4):301-9
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  • The aim is to define the histological type of glioma (astrocytic, oligodendrocytic or mixed) and the grade in order to classify the patients and give them an accurate treatment.
  • According to the WHO classification, infiltrative gliomas encompass astrocytic gliomas (diffuse astrocytomas grade II, anaplastic astrocytomas grade III and glioblastomas grade IV), oligodendroglial tumours (oligodendrogliomas grade II, anaplastic oligodendrogliomas grade III) and mixed gliomas (oligoastrocytomas grade II and anaplastic oligoastrocytomas grade III).
  • Circumscribed gliomas mainly corresponds to pilocytic astrocytomas (grade I).
  • Three distinct tumour growth patterns may be seen in gliomas, type I: tumor tissue only, type II: tumour tissue and isolated tumor cells permeating the brain parenchyma (ITC) and type III: ITCs only and no tumor tissue.
  • According to the Sainte Anne classification, gliomas are divided into astrocytic gliomas (pilocytic astrocytomas, structure type I, glioblastomas structure type II) and oligodendrogliomas and mixed oligoastrocytomas (grade A: lack of contrast enhancement and lack of endothelial hyperplasia, structure type III; and grade B: contrast enhancement or endothelial hyperplasia, structure type II and III).
  • [MeSH-minor] Astrocytoma / pathology. Humans. Neoplasms, Complex and Mixed / classification. Neoplasms, Complex and Mixed / pathology. Oligodendroglioma / pathology. Reproducibility of Results. World Health Organization

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  • (PMID = 15888386.001).
  • [ISSN] 1769-6917
  • [Journal-full-title] Bulletin du cancer
  • [ISO-abbreviation] Bull Cancer
  • [Language] fre
  • [Publication-type] English Abstract; Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] France
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89. Hirose T, Ishizawa K, Sugiyama K, Kageji T, Ueki K, Kannuki S: Pleomorphic xanthoastrocytoma: a comparative pathological study between conventional and anaplastic types. Histopathology; 2008 Jan;52(2):183-93
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  • [Title] Pleomorphic xanthoastrocytoma: a comparative pathological study between conventional and anaplastic types.
  • AIMS: To facilitate the understanding and correct diagnosis of the anaplastic variant of pleomorphic xanthoastrocytoma (PXA).
  • METHODS AND RESULTS: Twelve cases of PXA were divided into six conventional and six anaplastic types.
  • Three anaplastic PXAs developed in recurrent tumours and three occurred as the primary tumour.
  • Anaplastic PXAs were microscopically characterized by monotonous proliferation of atypical cells, increased mitotic activity, necrosis and microvascular proliferation.
  • Characteristic features of conventional PXA are also variously included in all anaplastic PXAs.
  • No remarkable differences were detected in the immunohistochemical profiles including the neuronal phenotype between the conventional and anaplastic types.
  • Ki67 labelling indices of the anaplastic type were significantly higher than those of the conventional type, whereas p53 showed no difference.
  • CONCLUSIONS: The anaplastic PXA, which occurs de novo or through recurrence, should be distinguished from glioblastoma by identifying the salient microscopic features of conventional PXA even in the anaplastic areas; and by demonstrating the expression of neuronal markers, in that the former is expected to have longer survival.
  • [MeSH-major] Astrocytoma / diagnosis. Astrocytoma / pathology

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  • (PMID = 18184267.001).
  • [ISSN] 1365-2559
  • [Journal-full-title] Histopathology
  • [ISO-abbreviation] Histopathology
  • [Language] eng
  • [Publication-type] Comparative Study; Journal Article
  • [Publication-country] England
  • [Chemical-registry-number] EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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90. Gole B, Durán Alonso MB, Dolenc V, Lah T: Post-translational regulation of cathepsin B, but not of other cysteine cathepsins, contributes to increased glioblastoma cell invasiveness in vitro. Pathol Oncol Res; 2009 Dec;15(4):711-23
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  • Reportedly, the expression of cathepsins B, L and S gradually increases in the progression from benign astrocytoma to the malignant glioblastoma, although their specific roles in glioma progression have not been revealed.
  • The differences between the matrix invading cells and non-invading core cells from spheroids derived from glioblastoma cell culture and from glioblastoma patients' biopsies, and embedded in type I collagen, have been studied at the mRNA, protein and cathepsin activity levels.
  • [MeSH-minor] Adult. Aged. Cathepsin L / metabolism. Cathepsins / metabolism. Cell Line, Tumor. Collagen / metabolism. Cystatins / metabolism. Drug Combinations. Female. Humans. Laminin / metabolism. Male. Middle Aged. Neoplasm Invasiveness / physiopathology. Proteoglycans / metabolism. Spheroids, Cellular / metabolism

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  • (PMID = 19434518.001).
  • [ISSN] 1532-2807
  • [Journal-full-title] Pathology oncology research : POR
  • [ISO-abbreviation] Pathol. Oncol. Res.
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Netherlands
  • [Chemical-registry-number] 0 / Cystatins; 0 / Drug Combinations; 0 / Laminin; 0 / Proteoglycans; 119978-18-6 / matrigel; 9007-34-5 / Collagen; EC 3.4.- / Cathepsins; EC 3.4.22.1 / Cathepsin B; EC 3.4.22.15 / Cathepsin L; EC 3.4.22.27 / cathepsin S
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91. Maiti AK, Ghosh K, Chatterjee U, Chakrobarti S, Chatterjee S, Basu S: Epidermal growth factor receptor and proliferating cell nuclear antigen in astrocytomas. Neurol India; 2008 Oct-Dec;56(4):456-62
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  • [Title] Epidermal growth factor receptor and proliferating cell nuclear antigen in astrocytomas.
  • AIMS: The involvement of various growth factors, growth factor receptors and proliferative markers in the molecular pathogenesis of astrocytic neoplasms are being studied extensively.
  • Since EGFR and proliferating cell nuclear antigen (PCNA) are involved in mitogenic signal transduction and cellular proliferation pathway, we have studied the correlation between the expression of EGFR and PCNA labeling index in astrocytic tumors.
  • MATERIALS AND METHODS: We investigated the immunohistochemical expression of EGFR and PCNA using the appropriate monoclonal antibodies in 40 cases of astrocytic tumors of which 21 cases were glioblastoma, eight cases were Grade III or anaplastic astrocytomas and six cases were Grade II or diffuse astrocytomas and five cases were Grade I or pilocytic astrocytomas.
  • RESULTS: Both the EGFR expression and PCNA labeling index increase with increasing grades of astrocytomas with a significantly high percentage of cells showing positive staining for both EGFR and PCNA in GBM and Grade III astrocytomas compared to Grade II astrocytomas.
  • The expression levels of both EGFR and PCNA were low in Grade I or pilocytic astrocytomas.
  • CONCLUSIONS: A significant correlation was found between EGFR overexpression and PCNA labeling index in Grade III and Grade II astrocytomas and glioblastoma.
  • These suggest that the tumor proliferation, at least in higher grades of astrocytomas is dependent in some measure on EGF and EGFR-related signaling pathways.
  • [MeSH-major] Astrocytoma / metabolism. Brain Neoplasms / metabolism. Proliferating Cell Nuclear Antigen / metabolism. Receptor, Epidermal Growth Factor / metabolism

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  • (PMID = 19127042.001).
  • [ISSN] 0028-3886
  • [Journal-full-title] Neurology India
  • [ISO-abbreviation] Neurol India
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] India
  • [Chemical-registry-number] 0 / Proliferating Cell Nuclear Antigen; EC 2.7.10.1 / Receptor, Epidermal Growth Factor
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92. Molina Saera J, Segura Huerta A, Palomar Abad L, Giménez Ortiz A, Ponce Lorenzo J, Reynés Muntaner G: [Extra-cranial anaplastic oligoastrocytoma development from a low-grade glioma]. Clin Transl Oncol; 2005 Apr;7(3):127-9
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  • [Title] [Extra-cranial anaplastic oligoastrocytoma development from a low-grade glioma].
  • [Transliterated title] Afectación extracraneal de oligoastrocitoma anaplásico desarrollado sobre un glioma de bajo grado.
  • This type of glioma has a favourable prognosis compared to other brain tumours.
  • We present a patient who had received treatment previously for a lowgrade glioma and who subsequently developed an anaplastic oligoastrocytoma in the same zone together with skull and extra-cranial involvement in the disease progression.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Brain Neoplasms / surgery. Glioma / surgery. Neoplasms, Second Primary / pathology. Skull Neoplasms / pathology. Temporal Bone. Temporal Lobe

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  • (PMID = 15899221.001).
  • [ISSN] 1699-048X
  • [Journal-full-title] Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico
  • [ISO-abbreviation] Clin Transl Oncol
  • [Language] spa
  • [Publication-type] Case Reports; English Abstract; Journal Article
  • [Publication-country] Italy
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93. Yi L, Zhou ZH, Ping YF, Chen JH, Yao XH, Feng H, Lu JY, Wang JM, Bian XW: Isolation and characterization of stem cell-like precursor cells from primary human anaplastic oligoastrocytoma. Mod Pathol; 2007 Oct;20(10):1061-8
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  • [Title] Isolation and characterization of stem cell-like precursor cells from primary human anaplastic oligoastrocytoma.
  • A small population of stem cell-like precursors in solid tumors are linked to histological composition, progression, angiogenesis, metastasis, recurrence and drug resistance of a variety of malignant tumors.
  • Oligoastrocytoma is the most common brain mixed glioma composed of mixed cells of oligodendroglial and astrocytic phenotypes.
  • Identification and characterization of stem cell-like precursors in oligoastrocytoma may shed light on the oncogenesis of this unique type of tumor and assist in the design of novel therapeutic strategy.
  • Here, tumor stem cell-like precursors were identified from primary human anaplastic oligoastrocytomas by labeling of the tumor sections with nestin and CD133.
  • Tumor cells were cultured in vitro in stem cell medium with growth factors and the capacity of the surviving stem cell-like precursors to form tumor spheres was tested.
  • The tumor spheres were further injected subcutaneously into nude mice to observe the contribution of stem cell-like precursors to histological composition and tumor progression.
  • These cells differentiated into tumor cells with both oligodendroglial and astrocytic characteristics and formed tumor spheres in vitro, which upon implantation in nude mice, grew into tumor nodules containing nestin+/CD133+ cells at levels higher than in the primary tumor tissues.
  • This study revealed for the first time that anaplastic human oligoastrocytomas contained stem cell-like precursors, which exhibit neural stem cell properties with tumorigenicity.
  • These stem cell-like precursors may be responsible for the oligodendroglial and astrocytic components of human oligoastrocytoma and should be considered as therapeutic targets.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology. Neoplastic Stem Cells / pathology
  • [MeSH-minor] Animals. Antigens, CD / analysis. Biomarkers, Tumor / analysis. Brain / pathology. Fluorescent Antibody Technique, Indirect. Glycoproteins / analysis. Humans. Intermediate Filament Proteins / analysis. Magnetic Resonance Imaging. Mice. Mice, Nude. Neoplasm Transplantation. Nerve Tissue Proteins / analysis. Nestin. Peptides / analysis. Spheroids, Cellular / chemistry. Spheroids, Cellular / pathology. Tumor Cells, Cultured

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  • (PMID = 17660801.001).
  • [ISSN] 0893-3952
  • [Journal-full-title] Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc
  • [ISO-abbreviation] Mod. Pathol.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / AC133 antigen; 0 / Antigens, CD; 0 / Biomarkers, Tumor; 0 / Glycoproteins; 0 / Intermediate Filament Proteins; 0 / NES protein, human; 0 / Nerve Tissue Proteins; 0 / Nes protein, mouse; 0 / Nestin; 0 / Peptides
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94. Arai Y, Tsuchida T, Tanioka F, Sugimura H, Watanabe C, Hongo T, Tsutsui Y: Congenital anaplastic astrocytoma differentiated into pilocytic astrocytoma: an autopsy case. Neuropathology; 2008 Aug;28(4):433-9
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  • [Title] Congenital anaplastic astrocytoma differentiated into pilocytic astrocytoma: an autopsy case.
  • We report an autopsy case of congenital astrocytoma and its histopathological changes during 5 years of the patient's development from birth to death.
  • At birth, a right exophthalmic tumor was observed, and MRI revealed that the tumor occupied the right orbital space and had also affected the suprasellar diencephalic structures.
  • The right orbital tumor, which was enucleated at 2 months of age, was a highly cellular tumor with moderate pleomorphism resembling anaplastic astrocytoma.
  • On the other hand, at autopsy, a brain tumor was found in the right diencephalic region with features of pilocytic astrocytoma, accompanied by leptomeningeal dissemination.
  • A biopsy specimen, which was obtained from the chiasmatic part of the tumor at 4 months of age, showed an intermediate appearance between the orbital tumor and the brain tumor obtained at autopsy.
  • Immunohistochemical examination confirmed that all three phases of the tumors showed an astrocytic lineage, and the Ki-67 labeling index decreased rapidly after 2 months of age.
  • We believe that this congenital anaplastic astrocytoma differentiated into a pilocytic astrocytoma during the 5 years of the patient's development.
  • The transformation of the congenital astrocytoma from anaplastic to pilocytic forms can be attributed to the nature of the tumor, namely postmitotic neoplastic cells are characterized by their ability to undergo self-differentiation, along with the organotropism of the developing brain.
  • [MeSH-major] Astrocytoma / congenital. Astrocytoma / pathology. Brain Neoplasms / congenital. Brain Neoplasms / pathology


95. Sega S, Horvat A, Popovic M: Anaplastic oligodendroglioma and gliomatosis type 2 in interferon-beta treated multiple sclerosis patients. Report of two cases. Clin Neurol Neurosurg; 2006 Mar;108(3):259-65
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  • [Title] Anaplastic oligodendroglioma and gliomatosis type 2 in interferon-beta treated multiple sclerosis patients. Report of two cases.
  • The most common cerebral neoplasms reported in MS patients were oligodendroglioma, astrocytoma, glioblastoma and gliomatosis.
  • MS can also present as a mass lesion that mimics a brain tumor.
  • One is a 26-year-old woman with relapsing-remitting MS and an anaplastic oligodendroglioma, the other a 49-year-old woman patient with relapsing-remitting MS and gliomatosis type 2.
  • Both patients were treated with interferon-beta1b and both died from the tumor.
  • The combination of a brain tumor and MS, and interferon-beta treatment could also be pure coincidence or an unknown side effect of treatment.
  • Although interferon-beta has been said to function as a tumor-suppressor protein, the influence of long-term treatment of MS patients on cancer development is not known.


96. Wiencke JK, Zheng S, Jelluma N, Tihan T, Vandenberg S, Tamgüney T, Baumber R, Parsons R, Lamborn KR, Berger MS, Wrensch MR, Haas-Kogan DA, Stokoe D: Methylation of the PTEN promoter defines low-grade gliomas and secondary glioblastoma. Neuro Oncol; 2007 Jul;9(3):271-9
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  • [Title] Methylation of the PTEN promoter defines low-grade gliomas and secondary glioblastoma.
  • Glioblastoma multiforme (GBM) can present as either de novo or secondary tumors arising from previously diagnosed low-grade gliomas.
  • Although these tumor types are phenotypically indistinguishable, de novo and secondary GBMs are associated with distinct genetic characteristics.
  • PTEN mutations, which result in activation of the phosphoinositide 3-kinase (PI3K) signal transduction pathway, are frequent in de novo but not in secondary GBMs or their antecedent low-grade tumors.
  • Results we present here show that grade II astrocytomas, oligodendrogliomas, and oligoastrocytomas commonly display methylation of the PTEN promoter, a finding that is absent in nontumor brain specimens and rare in de novo GBMs.
  • Our results also demonstrate frequent methylation of the PTEN promoter in grade III astrocytomas and secondary GBMs, consistent with the hypothesis that these tumors arise from lower grade precursors.
  • PTEN methylation is rare in de novo GBMs and is mutually exclusive with PTEN mutations.
  • We conclude that methylation of the PTEN promoter may represent an alternate mechanism by which PI3K signaling is increased in grade II and III gliomas as well as secondary GBMs, a finding that offers new therapeutic approaches in these patients.

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  • (PMID = 17504928.001).
  • [ISSN] 1522-8517
  • [Journal-full-title] Neuro-oncology
  • [ISO-abbreviation] Neuro-oncology
  • [Language] ENG
  • [Grant] United States / NCI NIH HHS / CA / P50 CA97257; United States / NCI NIH HHS / CA / R01 CA52689; United States / NCI NIH HHS / CA / P50 CA097257; United States / NCI NIH HHS / CA / R01 CA082783-06; United States / NCI NIH HHS / CA / R01 CA082783; United States / NCI NIH HHS / CA / CA082783-06; United States / NCI NIH HHS / CA / R01 CA052689
  • [Publication-type] Journal Article; Research Support, N.I.H., Extramural
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Biomarkers, Tumor; 0 / Genetic Markers; EC 2.7.1.- / Phosphatidylinositol 3-Kinases; EC 3.1.3.48 / PTEN protein, human; EC 3.1.3.67 / PTEN Phosphohydrolase
  • [Other-IDs] NLM/ PMC1907411
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97. National Toxicology Program: Toxicology and carcinogenesis studies of divinylbenzene-HP (Cas No. 1321-74-0) in F344/N rats and B6C3F1 mice (inhalation studies). Natl Toxicol Program Tech Rep Ser; 2006 Nov;(534):1-290
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  • The incidences of malignant glial cell tumors (malignant astrocytoma and oligodendroglioma) in the brain were slightly increased in 100 and 200 ppm males, and the incidence in the 200 ppm group exceeded the historical range for chamber controls.

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  • (PMID = 17342197.001).
  • [ISSN] 0888-8051
  • [Journal-full-title] National Toxicology Program technical report series
  • [ISO-abbreviation] Natl Toxicol Program Tech Rep Ser
  • [Language] eng
  • [Publication-type] Journal Article; Technical Report
  • [Publication-country] United States
  • [Chemical-registry-number] 0 / Vinyl Compounds; IZ715T4SBU / divinyl benzene
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98. Raco A, Piccirilli M, Landi A, Lenzi J, Delfini R, Cantore G: High-grade intramedullary astrocytomas: 30 years' experience at the Neurosurgery Department of the University of Rome "Sapienza". J Neurosurg Spine; 2010 Feb;12(2):144-53

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  • [Title] High-grade intramedullary astrocytomas: 30 years' experience at the Neurosurgery Department of the University of Rome "Sapienza".
  • OBJECT: The goal in this study was to review a series of patients who underwent surgical removal of intramedullary high-grade gliomas, focusing on the functional outcome, recurrence rates, and technical problems continually debated in neurosurgical practice.
  • METHODS: Between December 1976 and December 2006, 22 patients underwent removal of intramedullary high-grade gliomas.
  • RESULTS: Histological examinations showed 10 Grade III astrocytomas and 12 glioblastomas.
  • Only 2 of the 22 high-grade astrocytomas could be completely removed.
  • In this series, multimodality treatment of intramedullary high-grade astrocytomas has been shown to increase length of survival without improving the neurological status.
  • [MeSH-major] Astrocytoma / surgery. Spinal Cord Neoplasms / surgery
  • [MeSH-minor] Adolescent. Adult. Cervical Vertebrae. Child. Female. Humans. Magnetic Resonance Imaging. Male. Middle Aged. Neoplasm Recurrence, Local. Neurosurgical Procedures / methods. Neurosurgical Procedures / mortality. Rome. Spinal Cord / pathology. Spinal Cord / surgery. Thoracic Vertebrae. Time Factors. Treatment Outcome. Young Adult

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  • [CommentIn] J Neurosurg Spine. 2010 Feb;12(2):141-2; discussion 142-3 [20121347.001]
  • (PMID = 20121348.001).
  • [ISSN] 1547-5646
  • [Journal-full-title] Journal of neurosurgery. Spine
  • [ISO-abbreviation] J Neurosurg Spine
  • [Language] eng
  • [Publication-type] Case Reports; Journal Article
  • [Publication-country] United States
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99. Raab P, Hattingen E, Franz K, Zanella FE, Lanfermann H: Cerebral gliomas: diffusional kurtosis imaging analysis of microstructural differences. Radiology; 2010 Mar;254(3):876-81
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  • Receiver operating characteristic curves were used to test for the parameter with the best sensitivity and specificity for glioma grade discrimination.
  • RESULTS: In 34 patients with cerebral gliomas (five World Health Organization [WHO] grade II astrocytomas, 13 WHO grade III astrocytomas, and 16 WHO grade IV glioblastomas multiforme), significantly different diffusion patterns were found among the three glioma groups.
  • MK values increased with higher glioma malignancy, whereas ADCs tended to decrease with higher malignancy; FA values did not differ significantly among tumor groups.
  • Significant differences between astrocytoma grades WHO II and WHO III were demonstrated only by DK values.
  • Area under the receiver operating characteristic curve was highest for normalized MK (0.972) during testing to discriminate between low- and high-grade gliomas.
  • CONCLUSION: This study demonstrates specific diffusion patterns for low- and high-grade gliomas, showing that DK imaging is able to depict microstructural changes within glioma tissue and is able to help differentiate among glioma grades. (c) RSNA, 2010.

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  • (PMID = 20089718.001).
  • [ISSN] 1527-1315
  • [Journal-full-title] Radiology
  • [ISO-abbreviation] Radiology
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] United States
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100. Grujicic M, Vuckovic N, Vulekovic P, Novakovic B: The basic morphological characteristics of astrocytomas in Vojvodina in the period 2001-2006. J BUON; 2009 Oct-Dec;14(4):625-8
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  • [Title] The basic morphological characteristics of astrocytomas in Vojvodina in the period 2001-2006.
  • PURPOSE: Astrocytomas are the most common primary intracranial neoplasms.
  • The aim of this investigation was to register the age, sex, tumor localization, frequency and histological types of patients with astrocytomas.
  • Tumor histological studies were carried out in the Laboratory of the Centre for Pathology and Histology of the Clinical Centre of Vojvodina.
  • Out of 490 patients with diagnosed intracranial tumors, 139 (28.4%) had astrocytomas.
  • RESULTS: Astrocytomas were more frequent in males (63.3%) and were most common in the 50-59-year age group (39.5%).
  • In regard to other histological types of intracranial tumors, astrocytomas were more frequent in males (34.8%).
  • Grade III astrocytomas were most common (55.4%).
  • The frequency of hemorrhage and thrombosis showed a positive correlation with the histological grade of astrocytomas.
  • CONCLUSION: The typical patient with astrocytoma is a male of 50-59 years.
  • The tumor is grade III located in the right frontal region.
  • [MeSH-major] Astrocytoma / pathology. Brain Neoplasms / pathology
  • [MeSH-minor] Adult. Age Factors. Aged. Female. Humans. Male. Middle Aged. Neoplasm Staging. Prognosis. Sex Factors. Yugoslavia

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  • (PMID = 20148453.001).
  • [ISSN] 1107-0625
  • [Journal-full-title] Journal of B.U.ON. : official journal of the Balkan Union of Oncology
  • [ISO-abbreviation] J BUON
  • [Language] eng
  • [Publication-type] Journal Article
  • [Publication-country] Greece
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