作者:Chengwei Zhang、Xiao-Ran Han、Xiaobao Yang、Biao Jiang、Jing Liu、Yue Xiong、Jian Jin
DOI:10.1016/j.ejmech.2018.03.071
日期:2018.5
Anaplastic lymphoma kinase (ALK) activation has been associated with many types of human cancer. Significant efforts have been devoted to the development of ALK inhibitors to antagonize the kinase activity of ALK. Four ALK inhibitors have been approved by the FDA to date for treating patients with ALK-positive non-small cell lung cancers (NSCLC). However, drug resistance has been observed in the majority
间变性淋巴瘤激酶(ALK)活化与许多类型的人类癌症有关。已经致力于开发ALK抑制剂以拮抗ALK的激酶活性。迄今为止,FDA已经批准了四种ALK抑制剂用于治疗ALK阳性的非小细胞肺癌(NSCLC)患者。但是,在使用这些抑制剂治疗的大多数患者中都观察到了耐药性。需要新的治疗策略(例如,具有新颖作用机制的化合物)来克服耐药性问题。新兴的PROTAC(蛋白水解靶向嵌合体)技术已成功应用于多种蛋白质靶的选择性降解,但不适用于ALK。由于ALK蛋白水平对于哺乳动物的生存能力并不重要,ALK PROTAC可能导致毒性最小的新疗法。在这里,我们报告新型ALTA的PROTAC(降解剂)的设计,合成和生物学评估。MS4077(5)和MS4078(6)在SU-DHL-1淋巴瘤和NCI-H2228肺癌细胞中以浓度和时间依赖性方式有效降低了致癌活性ALK融合蛋白的细胞水平。由化合物5和6诱导的ALK蛋白降解是脑和蛋