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. 2010 Jun 15;17(6):535-46.
doi: 10.1016/j.ccr.2010.04.027.

Regression of castrate-recurrent prostate cancer by a small-molecule inhibitor of the amino-terminus domain of the androgen receptor

Raymond J Andersen  1 , Nasrin R Mawji, Jun Wang, Gang Wang, Simon Haile, Jae-Kyung Myung, Kate Watt, Teresa Tam, Yu Chi Yang, Carmen A Bañuelos, David E Williams, Iain J McEwan, Yuzhou Wang, Marianne D Sadar
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Free article

Regression of castrate-recurrent prostate cancer by a small-molecule inhibitor of the amino-terminus domain of the androgen receptor

Raymond J Andersen et al. Cancer Cell. .
Free article

Abstract

Castration-recurrent prostate cancer (CRPC) is suspected to depend on androgen receptor (AR). The AF-1 region in the amino-terminal domain (NTD) of AR contains most, if not all, of the transcriptional activity. Here we identify EPI-001, a small molecule that blocked transactivation of the NTD and was specific for inhibition of AR without attenuating transcriptional activities of related steroid receptors. EPI-001 interacted with the AF-1 region, inhibited protein-protein interactions with AR, and reduced AR interaction with androgen-response elements on target genes. Importantly, EPI-001 blocked androgen-induced proliferation and caused cytoreduction of CRPC in xenografts dependent on AR for growth and survival without causing toxicity.

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