Design, synthesis, and biological evaluation of benzoheterocyclic sulfoxide derivatives as quorum sensing inhibitors in <i>Pseudomonas aeruginosa</i>
作者:Shen Mao、Qiaoqiang Li、Zhikun Yang、Yasheng Li、Xinyi Ye、Hong Wang
DOI:10.1080/14756366.2023.2175820
日期:2023.12.31
were designed and synthesised as Pseudomonas aeruginosa (P. aeruginosa) quorum sensing inhibitors in this paper. We experimentally demonstrated that 6b significantly inhibited the formation of P. aeruginosa PAO1 biofilm without affecting the growth. Further mechanistic studies showed that 6b affected the luminescence of quorum sensing reported strain PAO1-lasB-gfp and the production of P. aeruginosa PAO1
摘要 本文设计并合成了六个系列的苯并杂环亚砜衍生物作为铜绿假单胞菌( P. aeruginosa )群体感应抑制剂。我们通过实验证明,6b显着抑制了铜绿假单胞菌PAO1 生物膜的形成,而不影响生长。进一步的机理研究表明,6b影响了群体感应报告菌株 PAO1- lasB - gfp的发光和由las系统调节的铜绿假单胞菌PAO1 弹性蛋白酶毒力因子的产生。这些实验结果表明6b主要通过las系统充当群体感应抑制剂。此外,计算机分子对接研究表明,6b和铜绿假单胞菌群体感应受体 LasR 通过氢键相互作用进行分子结合。初步的构效关系和对接研究表明,6b作为抗生物膜化合物具有广阔前景,有待进一步研究以解决未来微生物耐药性问题。