A novel quinazoline-based analog induces G2/M cell cycle arrest and apoptosis in human A549 lung cancer cells via a ROS-dependent mechanism
作者:Hailong Shi、Yan Li、Xiaorong Ren、Yaohong Zhang、Zhen Yang、Chenze Qi
DOI:10.1016/j.bbrc.2017.03.034
日期:2017.4
6-amino-4-(4-phenoxyphenylethylamino)quinazoline (QNZ) is an excellent quinazoline-containing NF-κB inhibitor also acting as a novel anticancer agent. Considering both the medicinal significance of quinazoline scaffold and the tunable functionality of Michael acceptor-centric pharmacophores in the electrophilicity-based prooxidant strategy, we designed a novel QNZ-inspired electrophilic molecule QNZ-A
6-氨基-4-(4-苯氧基苯基乙基氨基)喹唑啉(QNZ)是一种出色的含喹唑啉的NF-κB抑制剂,也可作为新型抗癌药。考虑到喹唑啉支架的药用价值和亲电子基抗氧化剂策略中以Michael受体为中心的药效基团的可调功能,我们通过在喹唑啉的6位引入一个Michael受体单元,设计了一种新颖的QNZ亲电子分子QNZ-A。在QNZ响。我们的结果确定了QNZ-A是一种有前途的针对A549细胞的选择性细胞毒剂。QNZ-A通过其迈克尔受体单元诱导了与A549细胞中氧化还原缓冲系统崩溃相关的活性氧(ROS)积累。这导致p53诱导的p21上调和氧化还原敏感的Cdc25C以及细胞周期蛋白B1 / Cdk1的下调,导致G2 / M细胞周期停滞和最终细胞凋亡。相反,缺乏迈克尔受体单元的QNZ-A的还原产物QNZ-B不能诱导ROS的产生以及所有这些与细胞周期有关的事件。总之,这项工作为通过ROS促进策略设计QNZ定向抗