Design, synthesis, and bioevaluation of imidazo [1,2–a] pyrazine derivatives as tubulin polymerization inhibitors with potent anticancer activities
作者:Bulian Deng、Zhiqiang Sun、Yuxi Wang、Ruiyao Mai、Zichao Yang、Yichang Ren、Jin Liu、Junli Huang、Zeli Ma、Ting Chen、Canjun Zeng、Jianjun Chen
DOI:10.1016/j.bmc.2022.117098
日期:2022.12
potential tubulin inhibitors. These compounds displayed potent anti-proliferative activities (micromolar to nanomolar) against a panel of cancer cell lines (including HepG-2, HCT-116, A549 and MDA-MB-231 cells). Among them, compound TB-25 exhibited the strongest inhibitory effects against HCT-116 cells with an IC50 of 23 nM. Mechanism studies revealed that TB-25 could effectively inhibit tubulin polymerization
通过结构优化和环融合策略,我们设计了一系列新型咪唑并[1,2-a]吡嗪衍生物作为潜在的微管蛋白抑制剂。这些化合物对一组癌细胞系(包括 HepG-2、HCT-116、A549 和 MDA-MB-231 细胞)显示出有效的抗增殖活性(微摩尔到纳摩尔)。其中化合物TB-25对HCT-116细胞的抑制作用最强,IC 50为23 nM。作用机制研究表明,TB-25可有效抑制体外微管蛋白聚合,破坏HCT-116细胞微管的动态平衡。此外,TB-25剂量依赖性地诱导 HCT-116 细胞的 G2/M 期细胞周期停滞和细胞凋亡。此外,TB-25以浓度依赖性方式抑制 HCT-116 细胞迁移。最后,分子对接显示TB-25与微管蛋白的秋水仙碱结合位点吻合良好,并与 CA-4 很好地重叠。总的来说,这些结果表明TB-25代表了一种有前途的微管蛋白抑制剂,值得进一步研究。