revealed a new attractive cyclic-indole scaffold for the discovery of mitosis-targeting anti-tumour agents. Among all of the synthesized derivatives, compound 20 displayed the most potent anti-proliferative activity (with IC50 values of 22–56 nM against seven cancer cell lines) and tubulin polymerization inhibition (IC50 = 0.15 ± 0.07 μM), which were much better than those of the reference compound Combretastain
这项研究揭示了一种新的有吸引力的环状
吲哚支架,用于发现靶向有丝分裂的抗肿瘤剂。在所有合成的衍
生物中,化合物20显示出最有效的抗增殖活性(针对7种癌
细胞系的IC 50值为22–56 nM)和微管蛋白聚合抑制(IC 50 = 0.15±0.07μM),这是非常重要的。优于参考化合物Combretastain A-4(
CA-4)。还观察到化合物20对人正常细胞和癌细胞的高选择性(9.68–7.61)。
免疫荧光分析阐明了化合物20破坏细胞内微管网络并干扰细胞有丝分裂。细胞机制研究表明,化合物20使细胞周期停滞在G 2 / M期,并以时间和剂量依赖性方式诱导细胞凋亡。总之,化合物20值得进一步研究进行体内抗肿瘤评估。