Quorum Sensing Systems Influence  Burkholderia Cenocepacia  Virulence

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 2012 English Publisher:Informa UK LimitedJournal:Future Microbiology, volume 7, pages 1,373-1,387 (issn: 1746-0913, eissn: 1746-0921,

Copyright policy )Funded by:CIHR | unidentified

Authors: Sujatha, Subramoni; Pamela A, Sokol;

doi: 10.2217/fmb.12.118

pmid: 23231487

Quorum Sensing Systems Influence Burkholderia Cenocepacia Virulence

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Abstract

Burkholderia cepacia complex strains communicate using N-acyl homoserine lactones and BDSF-dependent quorum sensing (QS) systems. Burkholderia cenocepacia QS systems include CepIR, CciIR, CepR2 and BDSF. Analysis of CepR, CciIR, CepR2 and RpfF (BDSF synthase) QS regulons revealed that these QS systems both independently regulate and coregulate many target genes, often in an opposing manner. The role of QS and several QS-regulated genes in virulence has been determined using vertebrate, invertebrate and plant infection models. Virulence phenotypes are strain and model dependent, suggesting that different QS-regulated genes are important depending on the strain and type of infection. QS inhibitors in combination with antibiotics can reduce biofilm formation and virulence in infection models.

Related Organizations

University of Calgary
Canada

Keywords

Burkholderia cenocepacia, Virulence Factors, Quorum Sensing, Gene Expression Regulation, Bacterial, Acyl-Butyrolactones, Glycolipids, Regulon, Metabolic Networks and Pathways, Signal Transduction

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