Structural Modification of the 3,4,5-Trimethoxyphenyl Moiety in the Tubulin Inhibitor VERU-111 Leads to Improved Antiproliferative Activities
作者:Qinghui Wang、Kinsie E. Arnst、Yuxi Wang、Gyanendra Kumar、Dejian Ma、Hao Chen、Zhongzhi Wu、Jinliang Yang、Stephen W. White、Duane D. Miller、Wei Li
DOI:10.1021/acs.jmedchem.8b00827
日期:2018.9.13
Colchicine binding site inhibitors (CBSIs) hold great potential in developing new generations of antimitotic drugs. Unlike existing tubulin inhibitors such as paclitaxel, they are generally much less susceptible to resistance caused by the overexpression of drug efflux pumps. The 3,4,5-trimethoxyphenyl (TMP) moiety is a critical component present in many CBSIs, playing an important role in maintaining
秋水仙碱结合位点抑制剂(CBSI)在开发新一代抗有丝分裂药物方面具有巨大潜力。与现有的微管蛋白抑制剂(例如紫杉醇)不同,它们通常不易受到药物外排泵过表达引起的耐药性的影响。3,4,5-三甲氧基苯基(TMP)部分是许多CBSI中存在的关键组分,在维持CBSI的合适分子构象并促进其与微管蛋白的高结合亲和力中起重要作用。先前报道的各种CBSI支架中TMP部分的修饰通常导致抗增殖能力降低。我们之前曾报道过一种有效的CBSI,即VERU-111,它也含有TMP部分。在此,我们报告发现VERU-111类似物13f比VERU-111更有力。与微管蛋白复合的13f的X射线晶体结构证实了其与秋水仙碱位点的直接结合。另外,13f在体内对肿瘤生长表现出强烈的抑制作用。