A quorum sensing small volatile molecule promotes antibiotic tolerance in bacteria.

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Etat: Public
Version: de l'auteur⸱e
ID Serval
serval:BIB_223B7CEDC463
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
A quorum sensing small volatile molecule promotes antibiotic tolerance in bacteria.
Périodique
PLoS One
Auteur⸱e⸱s
Que Y.A., Hazan R., Strobel B., Maura D., He J., Kesarwani M., Panopoulos P., Tsurumi A., Giddey M., Wilhelmy J., Mindrinos M.N., Rahme L.G.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Statut éditorial
Publié
Date de publication
2013
Peer-reviewed
Oui
Volume
8
Numéro
12
Pages
e80140
Langue
anglais
Résumé
Bacteria can be refractory to antibiotics due to a sub-population of dormant cells, called persisters that are highly tolerant to antibiotic exposure. The low frequency and transience of the antibiotic tolerant "persister" trait has complicated elucidation of the mechanism that controls antibiotic tolerance. In this study, we show that 2' Amino-acetophenone (2-AA), a poorly studied but diagnostically important small, volatile molecule produced by the recalcitrant gram-negative human pathogen Pseudomonas aeruginosa, promotes antibiotic tolerance in response to quorum-sensing (QS) signaling. Our results show that 2-AA mediated persister cell accumulation occurs via alteration of the expression of genes involved in the translational capacity of the cell, including almost all ribosomal protein genes and other translation-related factors. That 2-AA promotes persisters formation also in other emerging multi-drug resistant pathogens, including the non 2-AA producer Acinetobacter baumannii implies that 2-AA may play an important role in the ability of gram-negative bacteria to tolerate antibiotic treatments in polymicrobial infections. Given that the synthesis, excretion and uptake of QS small molecules is a common hallmark of prokaryotes, together with the fact that the translational machinery is highly conserved, we posit that modulation of the translational capacity of the cell via QS molecules, may be a general, widely distributed mechanism that promotes antibiotic tolerance among prokaryotes.
Pubmed
Web of science
Open Access
Oui
Création de la notice
08/01/2014 17:28
Dernière modification de la notice
20/08/2019 13:59
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