Bone: the final frontier for Staphylococcus aureus penetration in chronic rhinosinusitis

Bone: the final frontier for Staphylococcus aureus penetration in chronic rhinosinusitis

Author Pezato, Rogerio Autor UNIFESP Google Scholar
Bottura, Luciano Google Scholar
Santos, Rodrigo de Paula Autor UNIFESP Google Scholar
Voegels, Richard Louis Google Scholar
Bachi, Andre Luis Lacerda Autor UNIFESP Google Scholar
Gregório, Luis Carlos Autor UNIFESP Google Scholar
Institution Universidade de São Paulo (USP)
São Paulo State Mil Police
Universidade Federal de São Paulo (UNIFESP)
Abstract The superantigenic properties of Staphylococcus aureus have been implicated in increasing the inflammatory process in airway diseases. Local formation of IgE antibodies against staphylococcal enterotoxins by secondary lymphoid tissue in nasal polyps has been demonstrated. Staphylococcus aureus is known to colonize the nasal mucosa, and has been found invading the nasal submucosa and intracellularly.Objective: To evaluate the limits of Staphylococcus aureus invasion in the upper airway.Material and methods: Inferior turbinate samples from 3 patients without sinus disease, 6 ethmoid samples from patients with chronic rhinosinusitis with nasal polyposis, and 6 ethmoid samples from patients with chronic rhinosinusitis without nasal polyposis were studied. A fluorescein-labeled PNA probe against Staphylococcus aureus was used to test for the presence of the bacterium in bone (after decalcification) and mucosa.Results: We found Staphylococcus aureus invading the nasal submucosa in patients with nasal polyposis, but no cases of Staphylococcus aureus positivity in bone. in conclusion, we cannot support the hypothesis of nasal bone as a reservoir for Staphylococcus aureus, releasing massive amounts of staphylococcal enterotoxins and eliciting an inflammatory reaction, as occurs with the nasal mucosa.
Keywords Rhinosinusitis
Bone
Staphylococcus aureus
Airway
Language English
Date 2013-07-19
Published in Journal of Otolaryngology-head & Neck Surgery. London: Biomed Central Ltd, v. 42, 5 p., 2013.
ISSN 1916-0216 (Sherpa/Romeo, impact factor)
Publisher Biomed Central Ltd
Extent 5
Origin http://dx.doi.org/10.1186/1916-0216-42-45
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000322196600001
URI http://repositorio.unifesp.br/handle/11600/36544

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