Discovery of Small Molecule Mer Kinase Inhibitors for the Treatment of Pediatric Acute Lymphoblastic Leukemia
作者:Jing Liu、Chao Yang、Catherine Simpson、Deborah DeRyckere、Amy Van Deusen、Michael J. Miley、Dmitri Kireev、Jacqueline Norris-Drouin、Susan Sather、Debra Hunter、Victoria K. Korboukh、Hari S. Patel、William P. Janzen、Mischa Machius、Gary L. Johnson、H. Shelton Earp、Douglas K. Graham、Stephen V. Frye、Xiaodong Wang
DOI:10.1021/ml200239k
日期:2012.2.9
small molecule Mer kinase inhibitors. Several pyrazolopyrimidine derivatives effectively inhibit Mer kinase activity at subnanomolar concentrations. Furthermore, the lead compound shows a promising selectivity profile against a panel of 72 kinases and has excellent pharmacokinetic properties. We also describe the crystal structure of the complex between the lead compound and Mer, opening new opportunities
异位 Mer 表达促进促生存信号传导,并有助于儿童急性淋巴细胞白血病 (ALL) 的白血病发生和化学抗性。因此,Mer 激酶抑制剂可能会促进白血病细胞死亡,并进一步充当化学增敏剂,提高当前 ALL 方案的疗效并降低毒性。我们已应用基于结构的设计方法来发现新型小分子 Mer 激酶抑制剂。几种吡唑并嘧啶衍生物在亚纳摩尔浓度下有效抑制 Mer 激酶活性。此外,先导化合物对一组 72 种激酶显示出有希望的选择性,并具有出色的药代动力学特性。我们还描述了先导化合物和 Mer 之间复合物的晶体结构,为进一步优化和新模板设计开辟了新的机会。