Year: 2019
Type: article
Study design: Observational Study
Abstract: There is substantial heterogeneity among primary prostate cancers, evident in the spectrum of molecular abnormalities and its variable clinical course. As part of The Cancer Genome Atlas (TCGA), we present a comprehensive molecular analysis of 333 primary prostate carcinomas. Our results revealed a molecular taxonomy in which 74% of these tumors fell into one of seven subtypes defined by specific gene fusions (ERG, ETV1/4, and FLI1) or mutations (SPOP, FOXA1, and IDH1). Epigenetic profiles showed substantial heterogeneity, including an IDH1 mutant subset with a methylator phenotype. Androgen receptor (AR) activity varied widely and in a subtype-specific manner, with SPOP and FOXA1 mutant tumors having the highest levels of AR-induced transcripts. 25% of the prostate cancers had a presumed actionable lesion in the PI3K or MAPK signaling pathways, and DNA repair genes were inactivated in 19%. Our analysis reveals molecular heterogeneity among primary prostate cancers, as well as potentially actionable molecular defects.
DOI: 10.17615/weaq-yt78
Author: Perou, Charles
Institution: University of North Carolina at Chapel Hill
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: green
Awards: The Human Genome Sequencing Center, Harvard Genome Characterization Center, Cancer transcriptome characterization using massively parallel DNA sequencing, G9000009266, G9000022338, G9000036768, G9000037270, G9000111900, G9000130770, G9000134271, G9000134348, G9000197591, G9000244592, G9000339650, G9000343359, G9000351369
OpenAlex ID: W4301480592