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• W2423271305 endingPage "14639" @default.
• W2423271305 startingPage "14626" @default.
• W2423271305 abstract "Quorum sensing (QS) is a chemical signaling mechanism that allows bacterial populations to coordinate gene expression in response to social and environmental cues. Many bacterial pathogens use QS to initiate infection at high cell densities. Over the past two decades, chemical antagonists of QS in pathogenic bacteria have attracted substantial interest for use both as tools to further elucidate QS mechanisms and, with further development, potential anti-infective agents. Considerable recent research has been devoted to the design of small molecules capable of modulating the LasR QS receptor in the opportunistic pathogen Pseudomonas aeruginosa. These molecules hold significant promise in a range of contexts; however, as most compounds have been developed independently, comparative activity data for these compounds are scarce. Moreover, the mechanisms by which the bulk of these compounds act are largely unknown. This paucity of data has stalled the choice of an optimal chemical scaffold for further advancement. Herein, we submit the best-characterized LasR modulators to standardized cell-based reporter and QS phenotypic assays in P. aeruginosa, and we report the first comprehensive set of comparative LasR activity data for these compounds. Our experiments uncovered multiple interesting mechanistic phenomena (including a potential alternative QS-modulatory ligand binding site/partner) that provide new, and unexpected, insights into the modes by which many of these LasR ligands act. The lead compounds, data trends, and mechanistic insights reported here will significantly aid the design of new small molecule QS inhibitors and activators in P. aeruginosa, and in other bacteria, with enhanced potencies and defined modes of action." @default.
• W2423271305 created "2016-06-24" @default.
• W2423271305 creator A5011230209 @default.
• W2423271305 creator A5019702159 @default.
• W2423271305 creator A5031673334 @default.
• W2423271305 creator A5054774074 @default.
• W2423271305 creator A5072500902 @default.
• W2423271305 date "2015-11-11" @default.
• W2423271305 modified "2023-10-08" @default.
• W2423271305 title "A Comparative Analysis of Synthetic Quorum Sensing Modulators in <i>Pseudomonas aeruginosa</i>: New Insights into Mechanism, Active Efflux Susceptibility, Phenotypic Response, and Next-Generation Ligand Design" @default.
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• W2423271305 doi "https://doi.org/10.1021/jacs.5b06728" @default.
• W2423271305 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4665086" @default.
• W2423271305 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/26491787" @default.
• W2423271305 hasPublicationYear "2015" @default.
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