Discovery and evaluation of cytisine N-isoflavones as novel EGFR/HER2 dual inhibitors
作者:Yanqing Wang、Xiaoying Yin、Lingyan Chen、Zhixiang Yin、Zhicheng Zuo
DOI:10.1016/j.bioorg.2022.105868
日期:2022.10
simulation and revealed a novel mode of action that engages the cytisine and chromone moieties in CNIs. By combining structure- and ligand-based analysis, we further rationally engineered a new CNI compound that exhibits considerably improved cytotoxicity against both types of A431 and BT-474 cancer cells. Our study demonstrates the CNI compounds as a new class of EGFR/HER2 dual inhibitors and paves a way for
EGFR (ErbB) 家族成员,特别是表皮生长因子受体 (EGFR) 和人表皮生长因子 2 (HER2) 的异常信号传导与多种人类恶性肿瘤(例如,乳腺、肺和胃癌),并且通过小分子抑制剂双重靶向EGFR / HER2已被证明是治疗这些癌症的有效治疗方法。在这里,我们从药用植物苦豆子中提取和分离出一种新的天然产物,称为 Cytisine N -methylene- (4',7-dihydroxy-3'-methoxy)-isoflaveone ( CNI1 ),具有独特的分子框架。我们的生化激酶测定表明其衍生物CNI3之一对 EGFR(IC 50为 1.1 μM;K i为 0.6 μM)和 HER2(IC 50为 3.5 μM;K i为 1.8 μM)激酶表现出最佳的微摩尔 (μM) 抑制活性。相比之下,另一种衍生物CNI4在抑制过表达 EGFR 的 A431 癌细胞系(IC 50为 45.5