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Zonula occludens and nasal epithelial barrier integrity in allergic rhinitis.


ABSTRACT: Allergic rhinitis (AR) is a common disease affecting 400 million of the population worldwide. Nasal epithelial cells form a barrier against the invasion of environmental pathogens. These nasal epithelial cells are connected together by tight junction (TJ) proteins including zonula occludens-1 (ZO-1), ZO-2 and ZO-3. Impairment of ZO proteins are observed in AR patients whereby dysfunction of ZOs allows allergens to pass the nasal passage into the subepithelium causing AR development. In this review, we discuss ZO proteins and their impairment leading to AR, regulation of their expression by Th1 cytokines (i.e., IL-2, TNF-? and IFN-?), Th2 cytokines (i.e., IL-4 and IL-13) and histone deacetylases (i.e., HDAC1 and HDAC2). These findings are pivotal for future development of targeted therapies by restoring ZO protein expression and improving nasal epithelial barrier integrity in AR patients.

SUBMITTER: Siti Sarah CO 

PROVIDER: S-EPMC7476493 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Zonula occludens and nasal epithelial barrier integrity in allergic rhinitis.

Siti Sarah Che Othman CO   Md Shukri Norasnieda N   Mohd Ashari Noor Suryani NS   Wong Kah Keng KK  

PeerJ 20200904


Allergic rhinitis (AR) is a common disease affecting 400 million of the population worldwide. Nasal epithelial cells form a barrier against the invasion of environmental pathogens. These nasal epithelial cells are connected together by tight junction (TJ) proteins including zonula occludens-1 (ZO-1), ZO-2 and ZO-3. Impairment of ZO proteins are observed in AR patients whereby dysfunction of ZOs allows allergens to pass the nasal passage into the subepithelium causing AR development. In this revi  ...[more]

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