Lead discovery, chemical optimization, and biological evaluation studies of novel histone methyltransferase SET7 small-molecule inhibitors
作者:Zeng Hou、Wenjian Min、Rukang Zhang、Ao Niu、Yuanqing Li、Liyuan Cao、Jie Han、Cheng Luo、Peng Yang、Hong Ding
DOI:10.1016/j.bmcl.2020.127061
日期:2020.5
obesity. However, several known SET7 inhibitors exhibit weak activity or poor selectivity. Therefore, the development of novel SET7 inhibitors is highly desirable and of great clinical value. In this study, we identified 2-79 as a new hit compound by structure-based virtual screening and further AlphaLISA-based biochemical evaluation. Via chemical optimization, the synthesized compound DC21 was confirmed
组蛋白的翻译后修饰,包括组蛋白甲基化和去甲基化,控制着多个基因的表达开关。包含SET结构域的赖氨酸甲基转移酶7(SET7)是唯一的甲基转移酶,它可以使组蛋白H3(H3K4me1)的赖氨酸4特异性单甲基化,并在多种疾病(包括乳腺癌,丙型肝炎病毒(HCV),动脉粥样硬化性血管疾病)中发挥关键作用,糖尿病,前列腺癌,肝细胞癌和肥胖症。但是,几种已知的SET7抑制剂表现出弱活性或差的选择性。因此,迫切需要开发新型的SET7抑制剂并具有很大的临床价值。在这项研究中,我们确定了2-79通过基于结构的虚拟筛选和进一步的基于AlphaLISA的生化评估作为一种新型命中化合物。通过化学优化,确认合成的化合物DC21为有效的SET7抑制剂,IC 50值为15.93μM。DC21和SET7之间的相互作用也通过SPR实验进行了验证。特别地,DC21在细胞水平上抑制了MCF7细胞的增殖,IC 50值为25.84μM