Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis

Background Conclusive evidence exists that biofilms are present on the mucosa of chronic rhinosinusitis (CRS) patients. Less is known about the species constituting these biofilms. This study developed a fluorescence in situ hybridization (FISH) protocol for characterization of bacterial and fungal...

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Main Authors: Andrew Foreman B.M.B.S. (Hons.), Alkis James Psaltis Ph.D., M.B.B.S., Lor Wai Tan Ph.D., Peter-John Wormald M.D.
Format: Article
Language:English
Published: SAGE Publishing 2010-01-01
Series:Allergy & Rhinology
Online Access:https://doi.org/10.2500/ajra.2009.23.3413a
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author Andrew Foreman B.M.B.S. (Hons.)
Alkis James Psaltis Ph.D., M.B.B.S.
Lor Wai Tan Ph.D.
Peter-John Wormald M.D.
author_facet Andrew Foreman B.M.B.S. (Hons.)
Alkis James Psaltis Ph.D., M.B.B.S.
Lor Wai Tan Ph.D.
Peter-John Wormald M.D.
author_sort Andrew Foreman B.M.B.S. (Hons.)
collection DOAJ
description Background Conclusive evidence exists that biofilms are present on the mucosa of chronic rhinosinusitis (CRS) patients. Less is known about the species constituting these biofilms. This study developed a fluorescence in situ hybridization (FISH) protocol for characterization of bacterial and fungal biofilms in CRS. Methods Fifty CRS patients and 10 controls were recruited. Bacteria FISH probes for Staphylococcus aureus, Haemophilus influenzae/ and Pseudomonas aeruginosa and a universal probe for fungi were applied to sinus mucosal specimens and then analyzed using confocal scanning laser microscopy. Results Thirty-six of 50 CRS patients had biofilms present in contrast to 0/10 controls, suggesting a role for biofilms in the pathogenesis of this disease. S. aureus was the most common biofilm-forming organism. Eleven of 50 CRS patients hid characteristic fungal biofilms present. Conclusion This is the largest study of biofilms in CRS. It has validated mucosal tissue cryopreservation for delayed biofilm analysis. Fungal biofilms have been identified and the importance of S. aureus biofilms in the polymicrobial etiology of CRS is highlighted.
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spelling doaj.art-97c83b98dc7649fd9ae6068f88ed5e3c2022-12-22T00:58:38ZengSAGE PublishingAllergy & Rhinology2152-65672010-01-01110.2500/ajra.2009.23.3413aCharacterization of Bacterial and Fungal Biofilms in Chronic RhinosinusitisAndrew Foreman B.M.B.S. (Hons.)Alkis James Psaltis Ph.D., M.B.B.S.Lor Wai Tan Ph.D.Peter-John Wormald M.D.Background Conclusive evidence exists that biofilms are present on the mucosa of chronic rhinosinusitis (CRS) patients. Less is known about the species constituting these biofilms. This study developed a fluorescence in situ hybridization (FISH) protocol for characterization of bacterial and fungal biofilms in CRS. Methods Fifty CRS patients and 10 controls were recruited. Bacteria FISH probes for Staphylococcus aureus, Haemophilus influenzae/ and Pseudomonas aeruginosa and a universal probe for fungi were applied to sinus mucosal specimens and then analyzed using confocal scanning laser microscopy. Results Thirty-six of 50 CRS patients had biofilms present in contrast to 0/10 controls, suggesting a role for biofilms in the pathogenesis of this disease. S. aureus was the most common biofilm-forming organism. Eleven of 50 CRS patients hid characteristic fungal biofilms present. Conclusion This is the largest study of biofilms in CRS. It has validated mucosal tissue cryopreservation for delayed biofilm analysis. Fungal biofilms have been identified and the importance of S. aureus biofilms in the polymicrobial etiology of CRS is highlighted.https://doi.org/10.2500/ajra.2009.23.3413a
spellingShingle Andrew Foreman B.M.B.S. (Hons.)
Alkis James Psaltis Ph.D., M.B.B.S.
Lor Wai Tan Ph.D.
Peter-John Wormald M.D.
Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
Allergy & Rhinology
title Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
title_full Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
title_fullStr Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
title_full_unstemmed Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
title_short Characterization of Bacterial and Fungal Biofilms in Chronic Rhinosinusitis
title_sort characterization of bacterial and fungal biofilms in chronic rhinosinusitis
url https://doi.org/10.2500/ajra.2009.23.3413a
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