Design, synthesis and biological activities of benzo[d]imidazo[1,2-a]imidazole derivatives as TRPM2-specfic inhibitors
作者:Siqi Zhao、Han Zhang、Hongwei Jin、Xiaobo Cai、Rongxue Zhang、Zefang Jin、Wei Yang、Peilin Yu、Liangren Zhang、Zhenming Liu
DOI:10.1016/j.ejmech.2021.113750
日期:2021.12
energy-minimized conformation of non-selective TRPM2 inhibitor 2-APB as the query structure, which resulted in the discovery of a novel tricyclic TRPM2 inhibitor Z-4 with benzo[d]imidazo[1,2-a]imidazole skeleton. A series of Z-4 derivatives were subsequently synthesized and evaluated using calcium imaging and electrophysiology approaches. Among them, preferred compounds ZA10 and ZA18 inhibited the TRPM2 channel
瞬时受体电位 melastatin 2 (TRPM2) 通道与缺血/再灌注损伤、炎症、癌症和神经退行性疾病有关。然而,缺乏特异性抑制剂阻碍了 TRPM2 靶向治疗药物的开发。为了开发选择性 TRPM2 抑制剂,采用基于三维相似性的筛选策略,使用非选择性 TRPM2 抑制剂 2-APB 的能量最小化构象作为查询结构,从而发现了一种新型三环 TRPM2 抑制剂Z- 4具有苯并[ d ]咪唑[1,2- a ]咪唑骨架。Z-4系列随后使用钙成像和电生理学方法合成和评估衍生物。其中,优选的化合物ZA10和ZA18以微摩尔半最大抑制浓度值抑制TRPM2通道,并对TRPM8通道、TRPV1通道、InsP 3受体和Orai通道表现出TRPM2选择性。构效关系分析为进一步开发选择性 TRPM2 抑制剂提供了有价值的见解。神经保护实验表明ZA10和ZA18能有效降低H 2 O 2诱导的SH-SY5Y细胞死亡率。