Identification of a new series of potent diphenol HSP90 inhibitors by fragment merging and structure-based optimization
作者:Jing Ren、Jian Li、Yueqin Wang、Wuyan Chen、Aijun Shen、Hongchun Liu、Danqi Chen、Danyan Cao、Yanlian Li、Naixia Zhang、Yechun Xu、Meiyu Geng、Jianhua He、Bing Xiong、Jingkang Shen
DOI:10.1016/j.bmcl.2014.03.100
日期:2014.6
fragment-based drug discovery method, fragment merging, computer aided inhibitor optimization, and structure-based drug design, we were able to identify a series of HSP90 inhibitors. Among them, inhibitors 13, 32, 36 and 40 can inhibit HSP90 with IC50 about 20–40 nM, which is at least 200-fold more potent than initial fragments in the protein binding assay. These new HSP90 inhibitors not only explore
热休克蛋白90(HSP90)是一种分子伴侣蛋白,可以折叠并维持许多信号蛋白(尤其是某些致癌蛋白和突变的不稳定蛋白)的正确构象。抑制HSP90被认为是同时抑制多个异常信号通路的有效方法,因此被认为是癌症治疗的新靶标。在这里,通过整合多种技术,包括基于片段的药物发现方法,片段合并,计算机辅助抑制剂优化和基于结构的药物设计,我们能够鉴定出一系列HSP90抑制剂。其中,抑制剂13,32,36和40可以抑制HSP90与IC 50大约20–40 nM,比蛋白结合测定中的初始片段至少强200倍。这些新的HSP90抑制剂不仅探索与未充分研究的亚兜的相互作用,还为开发新型HSP90抑制剂作为抗癌药物提供了新的化学型。