Discovery of a Novel Androgen Receptor Antagonist Manifesting Evidence to Disrupt the Dimerization of the Ligand-Binding Domain via Attenuating the Hydrogen-Bonding Network Between the Two Monomers
作者:Weitao Fu、Minkui Zhang、Jianing Liao、Qing Tang、Yixuan Lei、Zhou Gong、Luhu Shan、Mojie Duan、Xin Chai、Jinping Pang、Chun Tang、Xuwen Wang、Xiaohong Xu、Dan Li、Rong Sheng、Tingjun Hou
DOI:10.1021/acs.jmedchem.1c01287
日期:2021.12.9
Androgen receptor (AR) has proved to be a vital drug target for treating prostate cancer. Here, we reported the discovery of a novel AR antagonist 92 targeting the AR ligand-binding pocket, but distinct from the marketed drug enzalutamide (Enz), 92 demonstrated inhibition on the AR ligand-binding domain (LBD) dimerization, which is a novel mechanism reported for the first time. First, a novel hit (26
雄激素受体 (AR) 已被证明是治疗前列腺癌的重要药物靶点。在这里,我们报告了一种针对 AR 配体结合口袋的新型 AR 拮抗剂92的发现,但与市售药物恩杂鲁胺 (Enz) 不同,92显示抑制 AR 配体结合域 (LBD) 二聚化,这是一种新型机制首次报道。首先,基于与 Enz 模型结合的理论 AR LBD 二聚体,通过虚拟筛选鉴定了一个新的命中 ( 26 , IC 50 = 5.57 μM)。然后,在分子模型的指导下,发现92的 AR 拮抗活性提高了 32.7 倍(IC 50 = 0.17 μM)。除了显示出高生物活性和安全性外,92可以抑制AR核转位。此外,92抑制了 AR LBD 二聚体的形成,可能是通过减弱两个单体之间的氢键网络。这一有趣的发现将为发现一类新的 AR 拮抗剂铺平道路。