Discovery of Nonquinone Substrates for NAD(P)H: Quinone Oxidoreductase 1 (NQO1) as Effective Intracellular ROS Generators for the Treatment of Drug-Resistant Non-Small-Cell Lung Cancer
作者:Xingsen Wu、Xiang Li、Zhihong Li、Yancheng Yu、Qidong You、Xiaojin Zhang
DOI:10.1021/acs.jmedchem.8b01424
日期:2018.12.27
stress preferentially in cancer cells by efficient NQO1 substrates, which promote ROS generation through redox cycling, has emerged as an effective strategy for cancer therapy, even for treating drug-resistant cancers. Here, we described the identification and structural optimization studies of the hit compound 1, a new chemotype of nonquinone substrate for NQO1 as an efficient ROS generator. Further structure–activity
有效的NQO1底物优先提高癌细胞的氧化应激水平,这种底物通过氧化还原循环促进ROS的产生,已成为癌症治疗,甚至用于治疗耐药性癌症的有效策略。在这里,我们描述了命中化合物1的鉴定和结构优化研究,命中化合物1是NQO1作为有效ROS产生剂的一种新的非醌底物化学型。进一步的结构-活性关系研究产生了活性最高的化合物20k,即三环2,3-二氰基茚并吡嗪酮,该化合物选择性抑制过表达NQO1的A549和A549 / Taxol癌细胞的增殖。再说20k通过NQO1催化的氧化还原循环显着提高了细胞内ROS水平,并诱导了A549 / Taxol细胞中PARP-1介导的细胞凋亡。此外,20k显着抑制小鼠中A549 / Taxol异种移植肿瘤的生长,而在体内未观察到明显的毒性。总之,20k可作为有效的NQO1底物,可能是治疗过表达NQO1的耐药NSCLC的新选择。