In vitro adhesive properties and virulence factors of Enterococcusfaecalis strains

Research in Microbiology
Christine ArchimbaudBernard Joly

Abstract

Twenty-nine Enterococcus faecalis isolates from patients with endocarditis or bacteremia or from stools of healthy volunteers were investigated for their ability to adhere to Int-407 and Girardi heart cell lines and for the presence of known enterococcal virulence factors. Eight strains (27.6%) adhered predominantly to Int-407 cells. The adherence of enterococci was enhanced by proteolytic digestion, suggesting that some cell binding components become surface-exposed after treatment with trypsin. The occurrence of known potential virulence factors of enterococci among these strains was determined and was as follows: enterococcal surface protein (72.4%), gelatinase (58.6%), aggregation substance (48.3%) and cytolysin (17.2%). Bacterial adherence was not significantly associated with any of these virulence factors.

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Citations

Feb 19, 2013·Environmental Monitoring and Assessment·Ayokunle Christopher DadaRahimi Hamid
Jun 15, 2012·Microbial Drug Resistance : MDR : Mechanisms, Epidemiology, and Disease·María LópezCarmen Torres
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