Inhibition of Cancer-Associated Mutant Isocitrate Dehydrogenases: Synthesis, Structure–Activity Relationship, and Selective Antitumor Activity
作者:Zhen Liu、Yuan Yao、Mari Kogiso、Baisong Zheng、Lisheng Deng、Jihui J. Qiu、Shuo Dong、Hua Lv、James M. Gallo、Xiao-Nan Li、Yongcheng Song
DOI:10.1021/jm500660f
日期:2014.10.23
total of 61 derivatives were synthesized, and their structure–activity relationships were investigated. Potent IDH1(R132H) inhibitors were identified with Ki values as low as 140 nM, while they possess weak or no activity against WT IDH1. Activities of selected compounds against IDH1(R132C) were found to be correlated with their inhibitory activities against IDH1(R132H), as well as cellular production
异柠檬酸脱氢酶 1 (IDH1) 的突变常见于某些癌症,例如神经胶质瘤。与野生型 (WT) IDH1 不同,突变酶催化 α-酮戊二酸还原为d -2-羟基戊二酸 (D2HG),从而引发癌症。几种 1-hydroxypyridin-2-one 化合物被鉴定为 IDH1(R132H) 的抑制剂。共合成了 61 种衍生物,并研究了它们的构效关系。用K i鉴定了有效的 IDH1(R132H) 抑制剂值低至 140 nM,而它们对 WT IDH1 具有弱活性或无活性。发现所选化合物对 IDH1(R132C) 的活性与其对 IDH1(R132H) 的抑制活性以及 D2HG 的细胞产生相关,R 2分别为 0.83 和 0.73。在基于细胞的模型测定中发现几种抑制剂可渗透血脑屏障,并对具有IDH1 R132H 突变的神经胶质瘤细胞表现出有效的选择性活性(EC 50 = 0.26–1.8 μM)。