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Restoring airway epithelial barrier dysfunction: a new therapeutic challenge in allergic airway disease


Steelant, B; Seys, S F; Boeckxstaens, G; Akdis, C A; Ceuppens, J L; Hellings, P W (2016). Restoring airway epithelial barrier dysfunction: a new therapeutic challenge in allergic airway disease. Rhinology, 54(3):195-205.

Abstract

An intact functional mucosal barrier is considered to be crucial for the maintenance of airway homeostasis as it protects the host immune system from exposure to allergens and noxious environmental triggers. Recent data provided evidence for the contribution of barrier dysfunction to the development of inflammatory diseases in the airways, skin and gut. A defective barrier has been documented in chronic rhinosinusitis, allergic rhinitis, asthma, atopic dermatitis and inflammatory bowel diseases. However, it remains to be elucidated to what extent primary (genetic) versus secondary (inflammatory) mechanisms drive barrier dysfunction. The precise pathogenesis of barrier dysfunction in patients with chronic mucosal inflammation and its implications on tissue inflammation and systemic absorption of exogenous particles are only partly understood. Since epithelial barrier defects are linked with chronicity and severity of airway inflammation, restoring the barrier integrity may become a useful approach in the treatment of allergic diseases. We here provide a state-of-the-art review on epithelial barrier dysfunction in upper and lower airways as well as in the intestine and the skin and on how barrier dysfunction can be restored from a therapeutic perspective.

Abstract

An intact functional mucosal barrier is considered to be crucial for the maintenance of airway homeostasis as it protects the host immune system from exposure to allergens and noxious environmental triggers. Recent data provided evidence for the contribution of barrier dysfunction to the development of inflammatory diseases in the airways, skin and gut. A defective barrier has been documented in chronic rhinosinusitis, allergic rhinitis, asthma, atopic dermatitis and inflammatory bowel diseases. However, it remains to be elucidated to what extent primary (genetic) versus secondary (inflammatory) mechanisms drive barrier dysfunction. The precise pathogenesis of barrier dysfunction in patients with chronic mucosal inflammation and its implications on tissue inflammation and systemic absorption of exogenous particles are only partly understood. Since epithelial barrier defects are linked with chronicity and severity of airway inflammation, restoring the barrier integrity may become a useful approach in the treatment of allergic diseases. We here provide a state-of-the-art review on epithelial barrier dysfunction in upper and lower airways as well as in the intestine and the skin and on how barrier dysfunction can be restored from a therapeutic perspective.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Swiss Institute of Allergy and Asthma Research
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:September 2016
Deposited On:05 Jan 2017 12:50
Last Modified:05 Jan 2017 12:50
Publisher:International Rhinologic Society
ISSN:0300-0729
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.4193/Rhin15.376
PubMed ID:27316042

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