Design, synthesis, and biological evaluation of 3-amino-2-oxazolidinone derivatives as potent quorum-sensing inhibitors of Pseudomonas aeruginosa PAO1
作者:Kai Jiang、Xinlin Yan、Jiahao Yu、Zijian Xiao、Hao Wu、Meihua Zhao、Yuandong Yue、Xiaoping Zhou、Junhai Xiao、Feng Lin
DOI:10.1016/j.ejmech.2020.112252
日期:2020.5
factors which are closely related to bacterial resistance. Previously we synthesized a series of oxazolidinone compounds targeting the quorum-sensing transcriptional regulatory protein CviR and ZS-12 showed good activity against Chromobacterium violaceum CV026 quorum-sensing. In this study, eighteen 3-amino-2-oxazolidinone compounds were designed and synthesized using ZS-12 as the lead compound. We initially
由于铜绿假单胞菌对大多数与临床相关的抗菌药耐药性增加,因此用传统抗生素治疗细菌感染具有挑战性。群体感应可以调节与细菌抗性密切相关的生物膜和毒力因子的产生。以前,我们合成了一系列针对群体感应的转录调节蛋白CviR的恶唑烷酮化合物,ZS-12对紫罗兰色杆菌CV026群体感应具有良好的活性。在这项研究中,使用ZS-12作为先导化合物设计并合成了18种3-氨基-2-恶唑烷酮化合物。我们最初使用C. violaceum评价了新型恶唑烷酮类化合物对QS的抑制活性CV026作为报告菌株。十三种化合物表现出良好的活性(IC 50范围为3.69-63.58μM),YXL-13抑制作用最强(IC 50 = 3.686±0.5790μM)对铜绿假单胞菌PAO1的生物膜形成和毒力因子测定具有抑制作用。在体外, YXL-13显着抑制PAO1生物膜的形成(范围为42.98%–17.67%),毒力因子(花青素,弹性蛋