Targeting the entry region of Hsp90's ATP binding pocket with a novel 6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl amide
作者:Ju Hui Jeong、Yong Jin Oh、Yunmee Lho、Sun You Park、Kwang-Hyeon Liu、Eunyoung Ha、Young Ho Seo
DOI:10.1016/j.ejmech.2016.10.038
日期:2016.11
chaperone Hsp90 plays an important role in cancer cell survival and proliferation by regulating the maturation and stabilization of numerous oncogenic proteins. Due to its potential to simultaneously disable multiple signaling pathways, Hsp90 has emerged as an attractive therapeutic target for cancer treatment. In this study, the design, synthesis, and biological evaluation of a series of Hsp90 inhibitors
分子伴侣Hsp90通过调节多种致癌蛋白的成熟和稳定化,在癌细胞的存活和增殖中起着重要作用。由于Hsp90具有同时禁用多种信号传导途径的潜力,因此已成为癌症治疗的有吸引力的治疗靶标。在这项研究中,描述了一系列Hsp90抑制剂的设计,合成和生物学评估。在合成化合物中,6,7-二氢噻吩并[3,2-c]吡啶-5(4H)-基酰胺19在荧光偏振(FP)结合测定(IC)中对Hsp90的N-末端表现出显着的结合亲和力。50 = 50.3 nM)。此外,它有效抑制了GI 50值分别为0.31μM和0.11μM的H1975非小细胞肺癌(NSCLC)和Skbr3乳腺癌细胞系的增殖。化合物19诱导Hsp90客户蛋白(包括EGFR,Her2,Met,c-Raf和Akt)降解,从而促进凋亡性癌细胞死亡。化合物19还抑制NOD突变的IL2Rγ无效小鼠中H1975异种移植物的生长,而没有任何明显的体重减轻。免疫组化评估表