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1. Berney DM, Stankiewicz E, Adlan AM, Kudahetti S, Biedrzycki OJ, Hadway P, Watkin N, Corbishley C: DNA topoisomerase I and IIalpha expression in penile carcinomas: assessing potential tumour chemosensitivity. BJU Int; 2008 Sep;102(8):1040-4
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  • [Source] The source of this record is MEDLINE®, a database of the U.S. National Library of Medicine.
  • [Title] DNA topoisomerase I and IIalpha expression in penile carcinomas: assessing potential tumour chemosensitivity.
  • OBJECTIVE: To examine the tissue expression of DNA topoisomerase I (Topo I) and IIalpha (Topo II), to pursue the possibility of future chemotherapy regimens for squamous cell carcinoma of the penis (SCCP), as high expression of Topo I might indicate sensitivity to the camptothecins, whereas high Topo II might indicate sensitivity to etoposide.
  • Tumour stage, grade and type were available.
  • Tumour type was also strongly correlated with Topo II and Ki-67 expression, with the highest expression in basaloid carcinomas and the lowest in verrucous carcinomas.
  • CONCLUSION: The expression of Topo I is grade- and type-independent, and chemotherapy using the camptothecins is unlikely to be effective.
  • The strong positivity of Topo II in high-grade and basaloid SCCPs suggests that treatment with etoposide or other Topo II 'poisons' might be a better target for future clinical trials.
  • [MeSH-major] Antigens, Neoplasm / metabolism. Antineoplastic Agents / therapeutic use. Biomarkers, Tumor / metabolism. Carcinoma, Squamous Cell / enzymology. DNA Topoisomerases, Type I / metabolism. DNA Topoisomerases, Type II / metabolism. DNA-Binding Proteins / metabolism. Penile Neoplasms / enzymology
  • [MeSH-minor] Drug Resistance, Neoplasm. Humans. Immunohistochemistry. Ki-67 Antigen / metabolism. Male

  • MedlinePlus Health Information. consumer health - Cancer Chemotherapy.
  • NCI CPTC Antibody Characterization Program. NCI CPTC Antibody Characterization Program .
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  • (PMID = 18489530.001).
  • [ISSN] 1464-410X
  • [Journal-full-title] BJU international
  • [ISO-abbreviation] BJU Int.
  • [Language] eng
  • [Publication-type] Journal Article; Research Support, Non-U.S. Gov't
  • [Publication-country] England
  • [Chemical-registry-number] 0 / Antigens, Neoplasm; 0 / Antineoplastic Agents; 0 / Biomarkers, Tumor; 0 / DNA-Binding Proteins; 0 / Ki-67 Antigen; EC / DNA Topoisomerases, Type I; EC / DNA Topoisomerases, Type II; EC / DNA topoisomerase II alpha
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