Role of interspecies interactions in dual-species biofilms developed in vitro by uropathogens isolated from polymicrobial urinary catheter-associated bacteriuria

Most catheter-associated urinary tract infections are polymicrobial. Here, uropathogen interactions in dual-species biofilms were studied. The dual-species associations selected based on their prevalence in clinical settings were Klebsiella pneumoniae-Escherichia coli, E. coli-Enterococcus faecalis,...

Full description

Saved in:

Bibliographic Details
Published in:	Biofouling (Chur, Switzerland) Vol. 32; no. 9; pp. 1067 - 1077
Main Authors:	Galván, E. M., Mateyca, C., Ielpi, L.
Format:	Journal Article
Language:	English
Published:	England Taylor & Francis 20-10-2016
Subjects:	Adhesion Antibiosis Attachment Bacteria Bacteriuria - microbiology Biofilms Biofilms - growth & development Biofouling dual-species biofilms Enterococcus faecalis - growth & development Escherichia coli Escherichia coli - growth & development Humans Interspecies interactions Klebsiella Klebsiella pneumoniae Klebsiella pneumoniae - growth & development Pneumonia urinary catheters Urinary Catheters - microbiology Urine uropathogens urinary catheters uropathogens dual-species biofilms Interspecies interactions
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Most catheter-associated urinary tract infections are polymicrobial. Here, uropathogen interactions in dual-species biofilms were studied. The dual-species associations selected based on their prevalence in clinical settings were Klebsiella pneumoniae-Escherichia coli, E. coli-Enterococcus faecalis, K. pneumoniae-E. faecalis, and K. pneumoniae-Proteus mirabilis. All species developed single-species biofilms in artificial urine. The ability of K. pneumoniae to form biofilms was not affected by E. coli or E. faecalis co-inoculation, but was impaired by P. mirabilis. Conversely, P. mirabilis established a biofilm when co-inoculated with K. pneumoniae. Additionally, E. coli persistence in biofilms was hampered by K. pneumoniae but not by E. faecalis. Interestingly, E. coli, but not K. pneumoniae, partially inhibited E. faecalis attachment to the surface and retarded biofilm development. The findings reveal bacterial interactions between uropathogens in dual-species biofilms ranged from affecting initial adhesion to outcompeting one bacterial species, depending on the identity of the partners involved.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0892-7014 1029-2454
DOI:	10.1080/08927014.2016.1231300