Molecular modeling study, synthesis and biological evaluation of combretastatin A-4 analogues as anticancer agents and tubulin inhibitors
作者:Yang Ping Quan、Li Ping Cheng、Tian Chi Wang、Wan Pang、Fan Hong Wu、Jin Wen Huang
DOI:10.1039/c7md00416h
日期:——
agents. In this study, 64 tubulin polymerization inhibitors of five-membered heterocycle-based combretastatin A-4 analogues were studied by a combination of molecular modeling techniques including 3D-QSAR, molecular docking, and molecular dynamics (MD) simulation. The CoMFA (comparative molecular field analysis) and CoMSIA (comparative molecular similarity indices analysis) models were established
作为微管的主要结构成分,微管蛋白是抗癌药开发的有趣目标。在这项研究中,通过分子建模技术(包括3D-QSAR,分子对接和分子动力学(MD)模拟)的组合研究了五元杂环基康他汀A-4类似物的64种微管蛋白聚合抑制剂。建立了具有理想统计参数和出色预测能力的CoMFA(比较分子场分析)和CoMSIA(比较分子相似性指数分析)模型。成功进行了20 ns的MD模拟,以确认详细的绑定模式并验证对接结果的合理性。结合结合自由能计算和3D-QSAR结果,设计了一些新的基于杂环的康布雷他汀A-4类似物。其中三个被合成并进行了生物学评估。化合物图13A显示强效的抗增殖活性(IC 50 1.31μM的对HepG2细胞,IC值50和微管蛋白聚合活性的抑制1.37μM的针对A549细胞的值)(IC 50 0.86μM的值)。化合物13b还表现出对HepG2细胞的良好活性(IC 50值为4.75μM)。实验结果表明,所建