Discovery, design and synthesis of 6H-anthra[1,9-cd]isoxazol-6-one scaffold as G9a inhibitor through a combination of shape-based virtual screening and structure-based molecular modification
作者:Wei-Lin Chen、Zhi-Hui Wang、Tao-Tao Feng、Dong-Dong Li、Chu-Hui Wang、Xiao-Li Xu、Xiao-Jin Zhang、Qi-Dong You、Xiao-Ke Guo
DOI:10.1016/j.bmc.2016.09.071
日期:2016.11
Protein lysine methyltransferase G9a is widely considered as an appealing antineoplastic target. Herein we present an integrated workflow combining shape-based virtual screening and structure-based molecular modification for the identification of novel G9a inhibitors. The shape-based similarity screening through ROCS overlay on the basis of the structure of UNC0638 was performed to identify CPUY074001
蛋白质赖氨酸甲基转移酶G9a被广泛认为是有吸引力的抗肿瘤靶标。在这里,我们提出了一个集成的工作流程,结合了基于形状的虚拟筛选和基于结构的分子修饰,用于鉴定新型G9a抑制剂。通过基于UNC0638的结构通过ROCS覆盖进行基于形状的相似性筛选,以鉴定CPUY074001包含6 H-蒽[1,9 - cd ]异恶唑-6-一个骨架作为命中。CPUY074001的绑定方式分析根据G9a和3D-QSAR结果,设计并合成了两个系列化合物。通过体外测定证实了该衍生物是有活性的,并且通过对接刺激探索了SAR。此外,几种类似物对几种癌细胞系显示出可接受的抗增殖作用。其中,CPUY074020显示出强大的双重G9a抑制活性和抗增殖活性。此外,CPUY074020以剂量依赖性方式诱导细胞凋亡,并显示H3K9的二甲基化显着降低。同时,CPUY074020显示出合理的体内PK特性。总之,我们的工作流程为鉴定新型G9a