作者:Manyi Xu、Na Li、Zihao Zhao、Zhixian Shi、Jianbo Sun、Li Chen
DOI:10.1016/j.ejmech.2019.04.050
日期:2019.7
On the basis of the hybridization strategy of natural products, a total of 32 novel celastrol hybrids were designed, synthesized and evaluated for their antitumor activities. Most of these derivatives exihibited significant antiproliferative activities compared to celastrol, among which compound 29 displayed the strongest inhibitory capability [IC50 = 0.15 ± 0.03 μM (A549),0.17 ± 0.03 μM (MCF-7), 0
根据天然产物的杂交策略,共设计,合成和评价了32种新型天青星杂种的抗肿瘤活性。与Celastrol相比,这些衍生物大多数都具有显着的抗增殖活性,其中化合物29表现出最强的抑制能力[IC 50 = 0.15± 0.03μM (A549),0.17±0.03μM(MCF-7),0.26±0.02μM(HepG2) ],与2-氰基3,12-二氧杂戊基1,9(11)-二烯基28-油酸甲酯(CDDO-Me)相比,具有同等或更高的抗癌活性。药理研究的机制表明29种具有破坏Hsp90-Cdc37复合物的能力,该复合物比Celastrol强。同时,化合物29可能以浓度依赖的方式诱导Hsp90的客户(p -Akt和Cdk4)的异常调节和细胞周期阻滞在G 0 / G 1期。另外,化合物29还可以通过A549细胞上的死亡受体途径诱导细胞凋亡。综上所述,我们的研究结果表明29可能是进一步药物研究的有希望的新型候选药物。