Development of an in vitro Assay, Based on the BioFilm Ring Test ® , for Rapid Profiling of Biofilm-Growing Bacteria

Microbial biofilm represents a major virulence factor associated with chronic and recurrent infections. Pathogenic bacteria embedded in biofilms are highly resistant to environmental and chemical agents, including antibiotics and therefore difficult to eradicate. Thus, reliable tests to assess biofi...

Full description

Saved in:
Bibliographic Details
Published in:Frontiers in microbiology 2016-09, Vol.7, p.1429-1429
Main Authors: Di Domenico, Enea G, Toma, Luigi, Provot, Christian, Ascenzioni, Fiorentina, Sperduti, Isabella, Prignano, Grazia, Gallo, Maria T, Pimpinelli, Fulvia, Bordignon, Valentina, Bernardi, Thierry, Ensoli, Fabrizio
Format: Article
Language:English
Subjects:
Biofilm
Biofilm Ring Test
crystal violet
Pseudomonas aeruginosa
Klebsiella pneumoniae
Staphylococcus aureus
Microbiology
Ralstonia
Staphylococcus epidermidis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Microbial biofilm represents a major virulence factor associated with chronic and recurrent infections. Pathogenic bacteria embedded in biofilms are highly resistant to environmental and chemical agents, including antibiotics and therefore difficult to eradicate. Thus, reliable tests to assess biofilm formation by bacterial strains as well as the impact of chemicals or antibiotics on biofilm formation represent desirable tools for a most effective therapeutic management and microbiological risk control. Current methods to evaluate biofilm formation are usually time-consuming, costly, and hardly applicable in the clinical setting. The aim of the present study was to develop and assess a simple and reliable procedure for the characterization of biofilm-producing bacterial strains for future clinical applications based on the BioFilm Ring Test® (BRT) technology. The procedure developed for clinical testing (cBRT) can provide an accurate and timely (5 h) measurement of biofilm formation for the most common pathogenic bacteria seen in clinical practice. The results gathered by the cBRT assay were in agreement with the traditional crystal violet (CV) staining test, according to the κ coefficient test (κ = 0.623). However, the cBRT assay showed higher levels of specificity (92.2%) and accuracy (88.1%) as compared to CV. The results indicate that this procedure offers an easy, rapid and robust assay to test microbial biofilm and a promising tool for clinical microbiology.
ISSN:1664-302X
1664-302X
DOI:10.3389/fmicb.2016.01429