Design, synthesis and biological evaluation of quinoline-indole derivatives as anti-tubulin agents targeting the colchicine binding site
作者:Wenlong Li、Wen Shuai、Honghao Sun、Feijie Xu、Yi Bi、Jinyi Xu、Cong Ma、Hequan Yao、Zheying Zhu、Shengtao Xu
DOI:10.1016/j.ejmech.2018.11.070
日期:2019.2
against five cancer cell lines with IC50 values ranging from 2 to 11 nM, which were comparable to those of Combretastatin A-4 (CA-4, 1). Further mechanism investigations revealed that 34b effectively inhibited the microtubule polymerization by binding to the colchicine site of tubulin. Further cellular mechanism studies elucidated that 34b disrupted cell microtubule networks, arrested the cell cycle at G2/M
通过分别用喹啉和吲哚部分取代isoCA-4的3,4,5-三甲酰基苯基和异香兰素,设计和合成了一系列新型的异combretastatin A-4(isoCA-4)类似物。这些合成的喹啉-吲哚衍生物的结构活性关系(SAR)已被深入研究。两种化合物27C和34B显示出针对与IC 5个的癌细胞系的最有效的活动50个值范围为2至11纳米,这比得上那些考布他汀A-4(CA-4,1)。进一步的机理研究表明,34b通过结合至微管蛋白的秋水仙碱位点有效地抑制微管聚合。进一步的细胞机制研究阐明了34b破坏了细胞微管网络,使细胞周期停滞在G2 / M期,诱导了K562细胞的凋亡和线粒体去极化。此外,34b在伤口愈合和管形成试验中均显示出强大的抗血管活性。重要的是,27c和34b在H22异种移植模型中显着抑制了肿瘤的生长,而没有明显的毒性,这表明27c和34b作为有效的抗癌药物,值得进一步研究。