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Quorum sensing et quorum quenching : Comment bloquer la communication des bactéries pour inhiber leur virulence ?

Abstract : Most bacteria use a communication system known as quorum sensing which relies on the secretion and perception of small molecules called autoinducers enabling bacteria to adapt their behavior according to the population size and synchronize the expression of genes involved in virulence, antimicrobial resistance and biofilm formation. Methods have emerged to inhibit bacterial communication and limit their noxious traits. Chemical inhibitors, sequestering antibodies and degrading enzymes have been developed and proved efficient to decrease bacterial virulence both in vitro and in vivo. This strategy, named quorum quenching, also showed synergistic effects with traditional antibacterial treatments by increasing bacterial susceptibility to antibiotics. Thereby quorum quenching constitutes an interesting therapeutic strategy to fight against bacterial infections and limit the consequences of antibiotic resistance.
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Sonia Mion, Benjamin Rémy, Laure Plener, Eric Chabriere, David Daudé. Quorum sensing et quorum quenching : Comment bloquer la communication des bactéries pour inhiber leur virulence ?. médecine/sciences, EDP Sciences, 2019, 35 (1), pp.31-38. ⟨10.1051/medsci/2018310⟩. ⟨hal-02010056⟩

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