Discovery of Asciminib (ABL001), an Allosteric Inhibitor of the Tyrosine Kinase Activity of BCR-ABL1
作者:Joseph Schoepfer、Wolfgang Jahnke、Giuliano Berellini、Silvia Buonamici、Simona Cotesta、Sandra W. Cowan-Jacob、Stephanie Dodd、Peter Drueckes、Doriano Fabbro、Tobias Gabriel、Jean-Marc Groell、Robert M. Grotzfeld、A. Quamrul Hassan、Chrystèle Henry、Varsha Iyer、Darryl Jones、Franco Lombardo、Alice Loo、Paul W. Manley、Xavier Pellé、Gabriele Rummel、Bahaa Salem、Markus Warmuth、Andrew A. Wylie、Thomas Zoller、Andreas L. Marzinzik、Pascal Furet
DOI:10.1021/acs.jmedchem.8b01040
日期:2018.9.27
constitutive activity of the BCR-ABL1 oncoprotein. Tyrosine kinase inhibitors (TKIs) that target the ATP-binding site have transformed CML into a chronic manageable disease. However, some patients develop drug resistance due to ATP-site mutations impeding drug binding. We describe the discovery of asciminib (ABL001), the first allosteric BCR-ABL1 inhibitor to reach the clinic. Asciminib binds to the myristate
慢性粒细胞性白血病(CML)源自BCR-ABL1癌蛋白的组成型活性。靶向ATP结合位点的酪氨酸激酶抑制剂(TKIs)已将CML转化为慢性可控制的疾病。但是,由于ATP位点突变阻碍了药物结合,一些患者出现了耐药性。我们描述了asciminib(ABL001)的发现,这是第一种到达临床的变构BCR-ABL1抑制剂。Asciminib结合BCR-ABL1的肉豆蔻口袋,并保持抗TKI耐药性ATP站点突变的活性。尽管由于肉豆蔻酸位点突变会产生抗药性,但这些突变对ATP竞争性抑制剂敏感,因此,asciminib与ATP竞争性TKI的组合可抑制抗药性的出现。使用NMR和X射线的基于片段的筛选产生了肉豆蔻口袋的配体。基于NMR的构象分析指导了这些非活性配体向ABL1抑制剂的转化。对效力,理化,药代动力学和类药物特性进行进一步的基于结构的优化,最终达到了asciminib的要求,目前正在对CML患者进行临床研究。