Targeting Acute Myelogenous Leukemia Using Potent Human Dihydroorotate Dehydrogenase Inhibitors Based on the 2-Hydroxypyrazolo[1,5-<i>a</i>]pyridine Scaffold: SAR of the Aryloxyaryl Moiety
作者:Stefano Sainas、Marta Giorgis、Paola Circosta、Giulio Poli、Marta Alberti、Alice Passoni、Valentina Gaidano、Agnese C. Pippione、Nicoletta Vitale、Davide Bonanni、Barbara Rolando、Alessandro Cignetti、Cristina Ramondetti、Alessia Lanno、Davide M. Ferraris、Barbara Canepa、Barbara Buccinnà、Marco Piccinini、Menico Rizzi、Giuseppe Saglio、Salam Al-Karadaghi、Donatella Boschi、Riccardo Miggiano、Tiziano Tuccinardi、Marco L. Lolli
DOI:10.1021/acs.jmedchem.2c00496
日期:2022.10.13
In recent years, human dihydroorotate dehydrogenase inhibitors have been associated with acute myelogenous leukemia as well as studied as potent host targeting antivirals. Starting from MEDS433 (IC50 1.2 nM), we kept improving the structure–activity relationship of this class of compounds characterized by 2-hydroxypyrazolo[1,5-a]pyridine scaffold. Using an in silico/crystallography supported design
近年来,人类二氢乳清酸脱氢酶抑制剂与急性髓性白血病有关,并被研究为有效的靶向抗病毒药物宿主。从MEDS433(IC 50 1.2 nM)开始,我们不断完善这类以2-羟基吡唑并[1,5- a ]吡啶骨架为特征的化合物的构效关系。使用计算机/晶体学支持的设计,我们鉴定了化合物4 (IC 50 7.2 nM),其特征是存在取代联苯支架的修饰芳氧基芳基部分,对 AML THP1 细胞具有有效的抑制和促分化能力 (EC 50 74 nM),优于布喹那 (EC 50 249 nM),与双嘧达莫合用时效果增强。最后,化合物4对非 AML 细胞以及 MEDS433 具有极低的细胞毒性;它在 AML 异种移植小鼠模型中显示出显着的体内抗白血病活性。