3-[4-(1H-Indol-3-yl)-1,3-thiazol-2-yl]-1H-pyrrolo[2,3-b]pyridines, Nortopsentin Analogues with Antiproliferative Activity
作者:Barbara Parrino、Anna Carbone、Gloria Di Vita、Cristina Ciancimino、Alessandro Attanzio、Virginia Spanò、Alessandra Montalbano、Paola Barraja、Luisa Tesoriere、Maria Livrea、Patrizia Diana、Girolamo Cirrincione
DOI:10.3390/md13041901
日期:——
A new series of nortopsentin analogues, in which the imidazole ring of the natural product was replaced by thiazole and the indole unit bound to position 2 of the thiazole ring was substituted by a 7-azaindole moiety, was efficiently synthesized. Two of the new nortopsentin analogues showed good antiproliferative effect against the totality of the NCI full panel of human tumor cell lines (~60) having GI50 values ranging from low micromolar to nanomolar level. The mechanism of the antiproliferative effect of these derivatives, investigated on human hepatoma HepG2 cells, was pro-apoptotic, being associated with externalization of plasma membrane phosphatidylserine and mitochondrial dysfunction. Moreover, the compounds induced a concentration-dependent accumulation of cells in the subG0/G1phase, while confined viable cells in G2/M phase.
我们高效合成了一系列新的去甲斑蝥素类似物,其中天然产物的咪唑环被噻唑取代,噻唑环第2位上的吲哚单元被一个7-氮杂吲哚分子取代。其中两种新的去甲斑蝥素类似物对 NCI 全部人类肿瘤细胞系(约 60 种)具有良好的抗增殖作用,其 GI50 值从低微摩尔到纳摩尔水平不等。在对人类肝癌 HepG2 细胞的研究中,这些衍生物的抗增殖作用机制是促进细胞凋亡,与质膜磷脂酰丝氨酸外化和线粒体功能障碍有关。此外,这些化合物还诱导细胞在亚 G0/G1 期进行浓度依赖性积累,同时将有活力的细胞限制在 G2/M 期。