KIT | KIT-Bibliothek | Impressum | Datenschutz
Open Access Logo
DOI: 10.5445/IR/1000065758
Veröffentlicht am 15.01.2018
DOI: 10.1038/srep41178
Zitationen: 9
Web of Science
Zitationen: 8

The aliphatic amidase AmiE is involved in regulation of Pseudomonas aeruginosa virulence

Clamens, T.; Rosay, T.; Crépin, A.; Grandjean, T.; Kentache, T.; Hardouin, J.; Bortolotti, P.; Neidig, A.; Mooij, M.; Hillion, M.; Vieillard, J.; Cosette, P.; Overhage, J.; O'Gara, F.; Bouffartigues, E.; Dufour, A.; Chevalier, S.; Guery, B.; Cornelis, P.; Feuilloley, M. G. J.; ... mehr

Abstract (englisch):
We have previously shown that the eukaryotic C-type natriuretic peptide hormone (CNP) regulates Pseudomonas aeruginosa virulence and biofilm formation after binding on the AmiC sensor, triggering the amiE transcription. Herein, the involvement of the aliphatic amidase AmiE in P. aeruginosa virulence regulation has been investigated. The proteome analysis of an AmiE over-producing strain (AmiE+) revealed an expression change for 138 proteins, including some that are involved in motility, synthesis of quorum sensing compounds and virulence regulation. We observed that the AmiE+ strain produced less biofilm compared to the wild type, and over-produced rhamnolipids. In the same line, AmiE is involved in P. aeruginosa motilities (swarming and twitching) and production of the quorum sensing molecules N-acyl homoserine lactones and Pseudomonas Quinolone Signal (PQS). We observed that AmiE overproduction reduced levels of HCN and pyocyanin causing a decreased virulence in different hosts (i.e. Dictyostelium discoideum and Caenorhabditis elegans). This phenotype was further confirmed in a mouse model of acute lung infection, in which AmiE ov ... mehr

Zugehörige Institution(en) am KIT Institut für Funktionelle Grenzflächen (IFG)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator ISSN: 2045-2322
URN: urn:nbn:de:swb:90-657586
KITopen-ID: 1000065758
HGF-Programm 47.02.06 (POF III, LK 01)
Erschienen in Scientific reports
Band 7
Seiten 41178
Schlagworte Bacteriology, Microbiology
Nachgewiesen in Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page