Discovery and optimization of 1-(1 H -indol-1-yl)ethanone derivatives as CBP/EP300 bromodomain inhibitors for the treatment of castration-resistant prostate cancer
作者:Qiuping Xiang、Chao Wang、Yan Zhang、Xiaoqian Xue、Ming Song、Cheng Zhang、Chenchang Li、Chun Wu、Kuai Li、Xiaoyan Hui、Yulai Zhou、Jeff B. Smaill、Adam V. Patterson、Donghai Wu、Ke Ding、Yong Xu
DOI:10.1016/j.ejmech.2018.01.087
日期:2018.3
therapeutic targets for the treatment of cancer and inflammatory diseases. Here we report the identification, optimization and evaluation of 1-(1H-indol-1-yl)ethanone derivatives as CBP/EP300 inhibitors starting from fragment-based virtual screening (FBVS). A cocrystal structure of the inhibitor (22e) in complex with CBP provides a solid structural basis for further optimization. The most potent compound
CREB(cAMP反应元件结合蛋白)结合蛋白(CBP)及其同系物EP300已成为治疗癌症和炎性疾病的新治疗靶标。在这里,我们将从基于片段的虚拟筛选(FBVS)开始,报告作为CBP / EP300抑制剂的1-(1 H-吲哚-1-基)乙酮衍生物的鉴定,优化和评估。抑制剂(22e)与CBP的共晶结构为进一步优化提供了坚实的结构基础。最有效的化合物32h与CBP溴结构域结合,在AlphaScreen分析中的IC 50值为0.037μM,是我们手中报道的CBP溴结构域抑制剂SGC-CBP30的2倍。32小时与其他含溴结构域的蛋白质相比,CBP / EP300的选择性也高。值得注意的是,化合物32h的酯衍生物(29h)在包括LNCaP,22Rv1和LNCaP衍生的C4-2B的几种前列腺癌细胞系中显着抑制细胞生长。化合物29h抑制LNCaP细胞中全长AR(AR-FL),AR靶基因和其他癌基因的mRNA表