Discovery of [1,2,3]Triazolo[4,5-<i>c</i>]quinoline Derivatives as a New Class of Ataxia-Telangiectasia Mutated Kinase Inhibitors
作者:Shiyu Zhang、Pei Zhou、Jingming Liu、Anjie Xia、Guifeng Lin、Zhiyu Xiang、Zhen Fang、Xin Yang、Jingxin Qiao、Qian Hu、Jiahao Zhang、Jinlong Zhao、Linli Li
DOI:10.1021/acsmedchemlett.3c00034
日期:2023.6.8
Ataxia-telangiectasia mutated (ATM) is an atypical serine/threonine protein kinase which is implicated in the repair of DNA double-strand breaks. Numerous reports have shown that ATM inhibition is an attractive target for radiotherapy and chemotherapy sensitization. Herein we report a new series of ATM kinase inhibitors containing the 1H-[1,2,3]triazolo[4,5-c]quinoline scaffold, which was obtained
共济失调毛细血管扩张突变 (ATM) 是一种非典型丝氨酸/苏氨酸蛋白激酶,参与 DNA 双链断裂的修复。大量报告表明,ATM 抑制是放疗和化疗增敏的一个有吸引力的靶点。在此,我们报道了一系列新的含有1H- [1,2,3]三唑并[4,5- c ]喹啉支架的ATM激酶抑制剂,该支架是通过虚拟筛选、结构优化和构效关系研究获得的。在这些抑制剂中, A011是最有效的抑制剂之一,针对 ATM 的 IC 50值为 1.0 nM。在结直肠癌细胞(SW620 和 HCT116)中, A011能够抑制伊立替康 ( CPT-11 ) 和电离辐射诱导的 ATM 信号激活,然后通过增加 G2/M 阻滞来增加结直肠癌细胞对伊立替康和电离辐射的敏感性并诱导细胞凋亡。在SW620人结直肠腺癌肿瘤异种移植模型中, A011通过抑制ATM活性使SW620对CPT-11敏感。总的来说,这项工作在发现 ATM 强效抑制剂方面找到了一个有希望的先导。