Structure-activity relationships and antiproliferative effects of 1,2,3,4-4H-quinoxaline derivatives as tubulin polymerization inhibitors
作者:Tingting Liang、Xiaomin Zhou、Lu Lu、Haiyang Dong、Yanan Zhang、Yungen Xu、Jianguo Qi、Yahong Zhang、Jianhong Wang
DOI:10.1016/j.bioorg.2021.104793
日期:2021.5
cancer cell lines, and most of the target compounds demonstrated moderate to strong activities towards two tumor cell lines. In addition, the structure-activity relationships of these derivatives were also discussed. Among them, compounds 11a and 11b showed the most potent activities. Moreover, compound 11a inhibited the tubulin polymerization in both cell-free and cellular assays. Further profiling of compound
秋水仙碱结合位点抑制剂(CBSI)在治疗各种肿瘤方面具有巨大潜力,它们可以克服现有微管蛋白抑制剂如紫杉醇和长春瑞滨面临的多药耐药性。在此,我们报告了一系列作为秋水仙碱结合位点抑制剂的四氢喹喔啉衍生物的设计、合成和生物学评价。评估了所有合成的化合物对 HT-29 和 Hela 癌细胞系的体外抗增殖活性,大多数目标化合物对两种肿瘤细胞系表现出中等至强的活性。此外,还讨论了这些衍生物的构效关系。其中,化合物11a和11b表现出最有力的活动。此外,化合物11a在无细胞和细胞试验中均抑制微管蛋白聚合。化合物11a 的进一步分析表明,它在 G2/M 期阻止细胞周期并以剂量依赖性方式诱导细胞凋亡。此外,分子对接研究证明化合物11a作用于秋水仙碱结合位点。因此,11a是发现秋水仙碱结合位点抑制剂的有希望的候选物。