Overcoming the Unexpected Functional Inversion of a PqsR Antagonist in<i>Pseudomonas aeruginosa</i>: An In Vivo Potent Antivirulence Agent Targeting<i>pqs</i>Quorum Sensing
作者:Cenbin Lu、Christine K. Maurer、Benjamin Kirsch、Anke Steinbach、Rolf W. Hartmann
DOI:10.1002/anie.201307547
日期:2014.1.20
The virulence regulator PqsR of Pseudomonas aeruginosa is considered as an attractive target for attenuating the bacterial pathogenicity without eliciting resistance. However, despite efforts and desires, no promising PqsR antagonist has been discovered thus far. Now, a surprising functionality change of a highly affine PqsR antagonist in P. aeruginosa is revealed, which is mediated by a bacterial
铜绿假单胞菌的毒力调节剂PqsR被认为是在不引起耐药性的情况下减弱细菌致病性的诱人靶标。然而,尽管作出了努力和期望,迄今为止尚未发现有希望的PqsR拮抗剂。现在,揭示了铜绿假单胞菌中一种高度亲和力的PqsR拮抗剂的功能发生了令人惊讶的变化,这是由细菌信号分子合酶介导的,并导致细胞效力低下。易感位置的封锁导致发现了第一种在体内有效并靶向PqsR的抗毒化合物,因此为这种新型抗毒疗法提供了概念验证。