Targeting fungal virulence factor by small molecules: Structure-based discovery of novel secreted aspartic protease 2 (SAP2) inhibitors
作者:Chenglan Li、Yang Liu、Shanchao Wu、Guiyan Han、Jie Tu、Guoqiang Dong、Na Liu、Chunquan Sheng
DOI:10.1016/j.ejmech.2020.112515
日期:2020.9
antifungal target. Using docking-based virtual screening and structure-based inhibitor design, a series of novel SAP2 inhibitors were successfully identified. Among them, indolone derivative 24a showed potent SAP2 inhibitory activity (IC50 = 0.92 μM). It blocked fungi biofilm and hypha formation by down-regulating the expression of genes SAP2, ECE1, ALS3 and EFG1. As a virulence factor inhibitor, compound
分泌的天冬氨酸蛋白酶2(SAP2)是一种毒性因子,是一种新兴的抗真菌靶标。使用基于对接的虚拟筛选和基于结构的抑制剂设计,成功鉴定了一系列新型SAP2抑制剂。其中,吲哚酮衍生物24a显示出有效的SAP2抑制活性(IC 50 = 0.92μM)。它通过下调SAP2,ECE1,ALS3和EFG1基因的表达来阻止真菌生物膜和菌丝的形成。作为毒力因子抑制剂,化合物24a在体外侵袭性念珠菌病的鼠模型中显示出强效的体内活性。它代表了发现新型抗真菌剂的有前途的先导化合物。