Design, structure–activity relationships, and enzyme kinetic studies of tricyclic and tetracyclic coumarin–based sulfamates as steroid sulfatase inhibitors
作者:Pei-Fang Chiu、I-Chun Lin、Yeh-Lin Lu、Chiao-Nien Chang、Hui-Yu Chan、Tzung-Shen Lin、Keng-Chang Tsai、Yves S.Y. Hsieh、Mei-Jou Chen、Mei-Hsiang Lin、Pi-Hui Liang
DOI:10.1016/j.bioorg.2023.106581
日期:2023.9
models, and cytotoxicity toward breast cancer and normal cells were evaluated. Tricyclic derivative 9e and tetracyclic derivative 10c were the most promising irreversible inhibitors developed in this study, with KI of 0.05 and 0.4 nM, and kinact/KI ratios of 28.6 and 19.1 nM−1min−1 on human placenta STS, respectively.
抑制类固醇硫酸酯酶(STS)会减少雌激素的产生,从而抑制肿瘤增殖。受到临床试验中第一个 STS 抑制剂 irosustat 的启发,我们探索了 21 种三环和四杂环香豆素衍生物。评估了它们的 STS 酶动力学参数、对接模型以及对乳腺癌和正常细胞的细胞毒性。三环衍生物9e和四环衍生物10c是本研究中开发的最有前途的不可逆抑制剂,对人胎盘STS的K I分别为0.05和0.4 nM,k inact / K I比值分别为28.6和19.1 nM −1 min −1。