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Cell Rep DOI:10.1016/j.celrep.2019.10.068

CREB5 Promotes Resistance to Androgen-Receptor Antagonists and Androgen Deprivation in Prostate Cancer.

Publication TypeJournal Article
Year of Publication2019
AuthorsHwang, JH, Seo, J-H, Beshiri, ML, Wankowicz, S, Liu, D, Cheung, A, Li, J, Qiu, X, Hong, AL, Botta, G, Golumb, L, Richter, C, So, J, Sandoval, GJ, Giacomelli, AO, Ly, SHuong, Han, C, Dai, C, Pakula, H, Sheahan, A, Piccioni, F, Gjoerup, O, Loda, M, Sowalsky, AG, Ellis, L, Long, H, Root, DE, Kelly, K, Van Allen, EM, Freedman, ML, Choudhury, AD, Hahn, WC
JournalCell Rep
Volume29
Issue8
Pages2355-2370.e6
Date Published2019 Nov 19
ISSN2211-1247
Abstract

Androgen-receptor (AR) inhibitors, including enzalutamide, are used for treatment of all metastatic castration-resistant prostate cancers (mCRPCs). However, some patients develop resistance or never respond. We find that the transcription factor CREB5 confers enzalutamide resistance in an open reading frame (ORF) expression screen and in tumor xenografts. CREB5 overexpression is essential for an enzalutamide-resistant patient-derived organoid. In AR-expressing prostate cancer cells, CREB5 interactions enhance AR activity at a subset of promoters and enhancers upon enzalutamide treatment, including MYC and genes involved in the cell cycle. In mCRPC, we found recurrent amplification and overexpression of CREB5. Our observations identify CREB5 as one mechanism that drives resistance to AR antagonists in prostate cancers.

DOI10.1016/j.celrep.2019.10.068
Pubmed

http://www.ncbi.nlm.nih.gov/pubmed/31747605?dopt=Abstract

Alternate JournalCell Rep
PubMed ID31747605