Discovery of Second-Generation NLRP3 Inflammasome Inhibitors: Design, Synthesis, and Biological Characterization
作者:Yuqi Jiang、Liu He、Jakob Green、Hallie Blevins、Chunqing Guo、Sulay Harsiddhbhai Patel、Matthew S. Halquist、MaryPeace McRae、Jürgen Venitz、Xiang-Yang Wang、Shijun Zhang
DOI:10.1021/acs.jmedchem.9b01155
日期:2019.11.14
NLRP3 inflammasomes have recently emerged as an attractive drug target for neurodegenerative disorders. In our continuing studies, a new chemical scaffold was designed as selective inhibitors of NLRP3 inflammasomes. Initial characterization of the lead HL16 demonstrated improved, however, nonselective inhibition on the NLRP3 inflammasome. Structure–activity relationship studies of HL16 identified a
NLRP3炎性小体最近已成为神经退行性疾病的诱人药物靶标。在我们的持续研究中,设计了一种新的化学支架作为NLRP3炎性小体的选择性抑制剂。铅HL16的初步表征证明有所改善,但是对NLRP3炎性小体的非选择性抑制作用。HL16的结构-活性关系研究确定了带有IC 50的新引线17(YQ128)为0.30±0.01μM。来自体外和体内模型的进一步研究证实了其对NLRP3炎性体的选择性抑制作用及其对大脑的渗透作用。此外,在大鼠中以20 mg / kg进行的药代动力学研究表明,全身清除率和组织分布广泛,导致半衰期为6.6小时。但是,口服生物利用度估计仅为10%,这可能反映了有限的胃肠道通透性和可能较高的首过效应。总的来说,这些发现强烈地鼓励从这种新的化学支架中开发出具有改善的药代动力学性质的更有效的类似物。