Discovery of New Selective Butyrylcholinesterase (BChE) Inhibitors with Anti-Aβ Aggregation Activity: Structure-Based Virtual Screening, Hit Optimization and Biological Evaluation
作者:Cheng-Shi Jiang、Yong-Xi Ge、Zhi-Qiang Cheng、Yin-Yin Wang、Hong-Rui Tao、Kongkai Zhu、Hua Zhang
DOI:10.3390/molecules24142568
日期:——
23 displayed anti-Aβ1–42 aggregation activity in a dose-dependent manner, and they did not show obvious cytotoxicity towards SH-SY5Y neuroblastoma cells. Also, both compounds showed significantly protective activity against Aβ1-42-induced toxicity in a SH-SY5Y cell model. The present results provided a new valuable chemical template for the development of selective BChE inhibitors.
本研究通过对hit 1的结构优化,设计合成了一系列选择性丁酰胆碱酯酶(BChE)抑制剂,这是一种4-((3,4-二氢异喹啉-2(1H)-基)甲基)苯甲酸衍生物。虚拟筛选我们的化合物库。体外酶分析结果表明,化合物9((4-((3,4-dihydroisoquinolin-2(1H)-yl)methyl)phenyl)(pyrrolidin-1-yl)methanone)和23(N-(2-溴苯基)-4-((3,4-二氢异喹啉-2(1H)-基)甲基)苯甲酰胺) 显示出改善的 BChE 抑制活性和对 BChE 与 AChE 的良好选择性。通过分子对接探测它们的结合模式,并通过分子动力学模拟进一步验证。动力学分析和分子模型研究表明,这些衍生物可以靶向 BChE 的催化活性位点 (CAS) 和外围阴离子位点 (PAS)。此外,选定的化合物 9 和 23 以剂量依赖性方式显示出抗 Aβ1-42 聚集活性,并且它们对