Inhibitors of GRB2-associated binding protein 1 (GAB1) and methods of treating cancer using the same
申请人:Arizona Board of Regents on Behalf of University of Arizona
公开号:US10448637B2
公开(公告)日:2019-10-22
Identification and evaluation of a set of first-in-class potent inhibitors targeting a new cancer target, Grb2-associated binder˜1 (GAB1), which integrates signals from different signaling pathways and is frequently over-expressed in cancer ceils. Intensive computational modeling is utilized to understand the structure of the GAB1 pleckstrin homology (PH) domain and screened five million compounds. Upon biological evaluation, several inhibitors were found that induced large conformational changes of the target structure exhibited strong selective binding to GAB1 PH domain. Particularly, these inhibitors demonstrated potent and tumor-specific cytotoxicity in breast cancer cells. This targeting GAB1 signaling may be used for cancer therapy, especially for triple negative breast cancer patients.
鉴定和评估一组针对癌症新靶点--Grb2-associated binder˜1 (GAB1)--的一流强效抑制剂,GAB1整合了来自不同信号通路的信号,在癌细胞中经常过度表达。为了了解 GAB1 pleckstrin homology(PH)结构域的结构,研究人员进行了大量的计算建模,并筛选了五百万种化合物。经过生物学评估,发现了几种能诱导目标结构发生巨大构象变化的抑制剂,它们与 GAB1 PH 结构域的结合具有很强的选择性。特别是,这些抑制剂对乳腺癌细胞具有强效的肿瘤特异性细胞毒性。这种靶向 GAB1 信号转导的方法可用于癌症治疗,尤其是三阴性乳腺癌患者。