Design, synthesis and biological evaluation of novel indazole-based derivatives as potent HDAC inhibitors via fragment-based virtual screening
作者:Jian Liu、Jingxian Zhou、Fengjun He、Liang Gao、Yu Wen、Lina Gao、Ping Wang、Di Kang、Lihong Hu
DOI:10.1016/j.ejmech.2020.112189
日期:2020.4
Based on fragment-based virtual screening and bioisoterism strategies, novel indazole and pyrazolo[3,4-b] pyridine derivatives as HDACs inhibitors were designed, synthesized and evaluated. Most of these compounds displayed good to excellent inhibitory activities against HDACs, especially compounds 15k and 15m were identified as potent inhibitors of HDAC1 (IC50 = 2.7 nM and IC50 = 3.1 nM), HDAC2 (IC50 = 4
基于片段虚拟筛选和生物分离策略,设计,合成和评估新型吲唑和吡唑并[3,4-b]吡啶衍生物作为HDACs抑制剂。这些化合物大多数对HDAC表现出良好至优异的抑制活性,尤其是化合物15k和15m被确定为HDAC1(IC 50 = 2.7 nM和IC 50 = 3.1 nM),HDAC2(IC 50 = 4.2 nM和IC 50 = 3.6 nM)和HDAC8(IC 50 = 3.6 nM和IC 50 = 3.3 nM)。进一步的抗增殖试验表明,化合物15k和15m表现出比阳性对照SAHA更好的抗HCT-116和HeLa细胞增殖活性。蛋白质印迹分析结果表明,化合物15k和15m明显上调了乙酰化α-微管蛋白和组蛋白H3的水平。此外,两种化合物15k和15m可以将细胞周期阻滞在G2 / M期并促进细胞凋亡,这与参考化合物SAHA相似。通过分子对接和动力学研究,有效的HDAC抑制活性主要由范德华和与HDAC的静电相互作用引起。