Effects on tubulin polymerization and down-regulation of c-Myc, hTERT and VEGF genes by colchicine haloacetyl and haloaroyl derivatives
作者:Ana Marzo-Mas、Eva Falomir、Juan Murga、Miguel Carda、J. Alberto Marco
DOI:10.1016/j.ejmech.2018.03.019
日期:2018.4
higher potency than colchicine itself. Some of the compounds, particularly the haloacetyl derivatives, inhibit the polymerization of tubulin in a similar manner as colchicine. As regards the cell cycle, the most active compounds are the chlorobenzoyl and bromobenzoyl derivatives, which cause cell cycle arrest at the G2/M phase when tested at 20 nM, and the bromoacetyl derivative, which arrests the cell
几种秋水仙碱类似物,其中N-乙酰基残基已被卤代乙酰基,环己基乙酰基,苯乙酰基取代,并且已经合成了各种芳酰基部分。已在三种肿瘤细胞系(HT-29,MCF-7和A549)和一种非肿瘤细胞系(HEK-293)上测量了合成化合物的细胞毒活性。这些化合物在纳摩尔水平上显示出很高的抗增殖活性,在许多情况下具有比秋水仙碱本身更高的效力。一些化合物,特别是卤代乙酰基衍生物,以类似于秋水仙碱的方式抑制微管蛋白的聚合。关于细胞周期,最具活性的化合物是氯苯甲酰基和溴苯甲酰基衍生物,当在20 nM下进行测试时,它们会在G2 / M期导致细胞周期停滞;而溴乙酰基衍生物则在15 nM下导致细胞周期停滞。此外,浓度很低的Myc,hTERT和VEGF基因以及VEGF蛋白的分泌。