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Pseudomonas aeruginosa quorum sensing molecule N-(3 oxododecanoyl)-l-homoserine lactone disrupts epithelial barrier integrity of Caco-2 cells
Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Medical Microbiology.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Medical Microbiology.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Medical Microbiology.
2006 (English)In: FEBS Letters, ISSN 0014-5793, E-ISSN 1873-3468, Vol. 580, no 30, 6921-6928 p.Article in journal (Refereed) Published
Abstract [en]

Acyl-homoserine lactone (HSL) quorum sensing molecules play an important role in regulation of virulence gene expression in Pseudomonas aeruginosa. Here, we show that 3O-C12-HSL can disrupt barrier integrity in human epithelial Caco-2 cells as evidenced by decreased transepithelial electrical resistance (TER), increased paracellular flux, reduction in the expression and distribution of ZO-1 and occludin, and reorganization of F-actin. P. aeruginosa 3O-C12-HSL activate p38 and p42/44 kinases, and inhibition of these kinases partly prevented 3O-C12-HSL-induced changes in TER, paracellular flux and expression of occludin and ZO-1. These findings demonstrate that P. aeruginosa 3O-C12-HSL can modulate tight junction integrity of Caco-2 cells. © 2006 Federation of European Biochemical Societies.

Place, publisher, year, edition, pages
2006. Vol. 580, no 30, 6921-6928 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-38153DOI: 10.1016/j.febslet.2006.11.057Local ID: 42090OAI: oai:DiVA.org:liu-38153DiVA: diva2:259002
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13

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Vikström, OlenaTafazoli, FaridehMagnusson, Karl-Eric

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