Structure-Guided Design of EED Binders Allosterically Inhibiting the Epigenetic Polycomb Repressive Complex 2 (PRC2) Methyltransferase
作者:Andreas Lingel、Martin Sendzik、Ying Huang、Michael D. Shultz、John Cantwell、Michael P. Dillon、Xingnian Fu、John Fuller、Tobias Gabriel、Justin Gu、Xiangqing Jiang、Ling Li、Fang Liang、Maureen McKenna、Wei Qi、Weijun Rao、Xijun Sheng、Wei Shu、James Sutton、Benjamin Taft、Long Wang、Jue Zeng、Hailong Zhang、Maya Zhang、Kehao Zhao、Mika Lindvall、Dirksen E. Bussiere
DOI:10.1021/acs.jmedchem.6b01473
日期:2017.1.12
Inhibiting this activity by small molecules targeting EZH2 was shown to result in antitumor efficacy. Here, we describe the optimization of a chemical series representing a new class of PRC2 inhibitors which acts allosterically via the trimethyllysine pocket of the noncatalytic EED subunit. Deconstruction of a larger and complex screening hit to a simple fragment-sized molecule followed by structure-guided
PRC2是一种多亚基甲基转移酶,参与早期胚胎发育和细胞生长的表观遗传调控。催化亚基EZH2主要使组蛋白H3的赖氨酸27甲基化,从而导致染色质紧实和肿瘤抑制基因的抑制。通过靶向EZH2的小分子抑制该活性可显示出抗肿瘤功效。在这里,我们描述了代表一类新的PRC2抑制剂的化学系列的优化,该类PRC2抑制剂通过非催化EED亚基的三甲基赖氨酸口袋发生变构作用。解构较大且复杂的筛选物会产生简单的片段大小的分子,然后进行结构引导的再生长和仔细的性质调节,以产生在功能测定和细胞活性中实现亚微摩尔抑制的化合物。