Resolution of genotypic heterogeneity in prostate tumors using polymerase chain reaction and comparative genomic hybridization on microdissected carcinoma and prostatic intraepithelial neoplasia foci.

Abstract excerpt

Prostate cancer (CaP) is a multifocal heterogenous disease. A major challenge in CaP research is to identify genetic biomarkers that herald aggressive transformation. To investigate the effect of tumor heterogeneity on the analysis of genomic aberration, we compared the results of comparative genomic hybridization (CGH) analysis of DNA extracted from tumor bulk against that of DNA amplified by degenerate...

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