Design, synthesis, and biological evaluation of truncated deguelin derivatives as Hsp90 inhibitors
作者:Hong Yao、Feijie Xu、Guangyu Wang、Shaowen Xie、Wenlong Li、Hequan Yao、Cong Ma、Zheying Zhu、Jinyi Xu、Shengtao Xu
DOI:10.1016/j.ejmech.2019.02.014
日期:2019.4
A series of novel B and C-rings truncated deguelin derivatives have been designed and synthesized in the present study as heat shock protein 90 (Hsp90) inhibitors. The synthesized compounds exhibited micromolar antiproliferative potency toward a panel of human cancer cell lines. Their structure-activity relationships (SARs) were investigated in a systematic manner. Compound 21c was identified to have
在本研究中,已经设计并合成了一系列新颖的B和C环截短的deguelin衍生物,作为热激蛋白90(Hsp90)抑制剂。合成的化合物对一组人类癌细胞系表现出微摩尔的抗增殖能力。以系统的方式研究了它们的构效关系(SAR)。鉴定出化合物21c具有高的Hsp90结合能力(60nM),并通过遍在蛋白蛋白酶体系统引起客户蛋白降解。进一步的生物学研究表明,化合物21c诱导了人乳腺癌MCF-7细胞的剂量依赖性S和G2期细胞周期停滞。流式细胞仪和蛋白质印迹分析证实了化合物21c导致MCF-7细胞凋亡。另外,化合物21c对MCF-7细胞的迁移和侵袭表现出很强的抑制作用。综上所述,这些结果表明21c可能是Hsp90抑制剂进一步开发的有前途的先导化合物。