Virtual screening identification and chemical optimization of substituted 2-arylbenzimidazoles as new non-zinc-binding MMP-2 inhibitors
作者:Antonio Laghezza、Grazia Luisi、Alessia Caradonna、Antonella Di Pizio、Luca Piemontese、Fulvio Loiodice、Mariangela Agamennone、Paolo Tortorella
DOI:10.1016/j.bmc.2019.115257
日期:2020.2
structure-activity relationship (SAR) of the benzimidazole scaffold was explored by synthesis of several analogues whose inhibition activity was tested with enzyme inhibition assays. By performing the molecular simplification approach, we disclosed different sets of single-digit micromolar inhibitors of MMP-2, with up to a ten-fold increase in inhibitory activity and ameliorated selectivity towards off-target
基质金属蛋白酶(MMPs)是锌依赖性内切蛋白酶的一大家族,已知在肿瘤的进展和侵袭性中起多种调节作用。多年来,这鼓励了针对抗癌治疗的MMP,尤其是MMP-2的方法。由于在临床上出现毒性和其他缺陷,基于(假)肽支架组装的非特异性锌结合基(ZBGs)的MMP抑制剂的早期世代已被中止,这为有或没有锌螯合剂部分的抑制剂铺平了道路。结合催化锌离子。在本文中,我们继续寻找新的非锌结合性MMP-2抑制剂:利用先前鉴定的化合物,开展了虚拟筛选(VS)运动,并导致了新一类配体的鉴定。通过合成几种类似物来探索苯并咪唑支架的构效关系(SAR),这些类似物的抑制活性已通过酶抑制试验进行了测试。通过执行分子简化方法,我们公开了不同组的MMP-2单位数微摩尔抑制剂,与所选先导化合物相比,抑制活性和对脱靶MMP-8的选择性提高了多达十倍。对具有对接的特权结构的MMP-2配合物进行的分子动力学计算证实,分析的抑制剂可避免靶