Structure-Guided Design and Synthesis of a Pyridazinone Series of <i>Trypanosoma cruzi</i> Proteasome Inhibitors
作者:Michael G. Thomas、Kate McGonagle、Paul Rowland、David A. Robinson、Peter G. Dodd、Isabel Camino-Díaz、Lorna Campbell、Juan Cantizani、Pablo Castañeda、Daniel Conn、Peter D. Craggs、Darren Edwards、Liam Ferguson、Andrew Fosberry、Laura Frame、Panchali Goswami、Xiao Hu、Justyna Korczynska、Lorna MacLean、Julio Martin、Nicole Mutter、Maria Osuna-Cabello、Christy Paterson、Imanol Peña、Erika G. Pinto、Caterina Pont、Jennifer Riley、Yoko Shishikura、Frederick R. C. Simeons、Laste Stojanovski、John Thomas、Karolina Wrobel、Robert J. Young、Filip Zmuda、Fabio Zuccotto、Kevin D. Read、Ian H. Gilbert、Maria Marco、Timothy J. Miles、Pilar Manzano、Manu De Rycker
DOI:10.1021/acs.jmedchem.3c00582
日期:2023.8.10
an animal model of Chagas disease, so alternative proteasome inhibitors were investigated. Screening a library of phenotypically active analogues against the T. cruzi proteasome identified an active, selective pyridazinone, the development of which is described herein. We obtained a cryo-EM co-structure of proteasome and a key inhibitor and used this to drive optimization of the compounds. Alongside
恰加斯病是一种主要影响南美洲和中美洲的寄生虫感染,迫切需要新的治疗方法。我们之前报道过 GSK3494245/DDD01305143 的发现,这是一种治疗内脏利什曼病的临床前候选药物,通过抑制利什曼原虫蛋白酶体发挥作用。一种相关的类似物,对克氏锥虫有活性,在恰加斯病动物模型中表现出次优功效,因此研究了替代的蛋白酶体抑制剂。筛选针对克氏锥虫蛋白酶体的表型活性类似物文库,鉴定出一种活性、选择性哒嗪酮,本文描述了其开发。我们获得了蛋白酶体和关键抑制剂的冷冻电镜共结构,并用它来驱动化合物的优化。除此之外,吸收、分布、代谢和排泄 (ADME) 特性的优化为小鼠功效研究提供了合适的化合物。讨论了这些研究的结果,以及进一步了解该系列及其为恰加斯病提供新疗法的潜力的未来计划。