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Published in: Current Allergy and Asthma Reports 6/2011

01-12-2011 | Otitis (David P. Skoner, Section Editor)

Innate Immunity and the Role of Defensins in Otitis Media

Authors: Mark Underwood, Lauren Bakaletz

Published in: Current Allergy and Asthma Reports | Issue 6/2011

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Abstract

Otitis media is the most common pediatric disease in developed countries and a significant cause of morbidity and hearing loss in developing countries. The innate immune system is essential to protecting the middle ear from infection. Defensins, broad-spectrum cationic antimicrobial peptides, have been implicated in prevention of and the early response to acute otitis media; however, the mechanisms by which defensins and other antimicrobial molecules mediate this protection have not been completely elucidated. In both animal otitis media models and human middle ear epithelial cell culture models, β-defensins are highly induced and effectively kill the common pathogens associated with otitis media. We review the importance of innate immunity in protecting the middle ear and recent advances in understanding the roles of defensins and other antimicrobial molecules in the prevention and treatment of otitis media. The extremely high prevalence of otitis media, in spite of sophisticated innate and adaptive immune systems, is a vexing problem for clinicians and scientists. We therefore also review mechanisms by which bacteria evade innate immune defenses.
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Metadata
Title
Innate Immunity and the Role of Defensins in Otitis Media
Authors
Mark Underwood
Lauren Bakaletz
Publication date
01-12-2011
Publisher
Current Science Inc.
Published in
Current Allergy and Asthma Reports / Issue 6/2011
Print ISSN: 1529-7322
Electronic ISSN: 1534-6315
DOI
https://doi.org/10.1007/s11882-011-0223-6

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