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Epithelial barrier dysfunction in ocular allergy.

Neera Singh1, Yolanda Diebold2,3, Srikant K Sahu4

  • 1ProCyto Labs Pvt. Ltd., KIIT-TBI, KIIT University, Patia, Bhubaneswar, India.

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|November 10, 2021
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Summary
This summary is machine-generated.

Epithelial barrier dysfunction contributes to ocular allergies by increasing allergen exposure and inflammation. Repairing this barrier may offer new preventive and therapeutic strategies for eye allergies.

Keywords:
allergic conjunctivitisepithelial barrierglycocalyxocular allergytight junctionsvernal keratoconjunctivitis

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Area of Science:

  • Ophthalmology
  • Immunology
  • Cell Biology

Background:

  • The epithelial barrier protects against environmental threats.
  • Epithelial barrier dysfunction is linked to allergic diseases like asthma and atopic dermatitis.
  • Its role in ocular allergy (OA) is not well understood.

Purpose of the Study:

  • To review the role of epithelial barrier dysfunction in ocular allergy pathogenesis.
  • To explore potential barrier repair strategies for OA.

Main Methods:

  • Literature review of studies on ocular epithelial barrier function in allergy.
  • Analysis of the contribution of barrier defects to OA pathophysiology.
  • Examination of therapeutic approaches targeting epithelial repair.

Main Results:

  • Impaired ocular epithelial barrier function enhances allergen uptake, promoting immune activation and inflammation in OA.
  • Abnormalities in tight junction proteins are implicated in OA, particularly in chronic forms like atopic keratoconjunctivitis (AKC) and vernal keratoconjunctivitis (VKC).
  • Current treatments for chronic allergic eye conditions are not fully effective.

Conclusions:

  • Ocular epithelial barrier dysfunction is a significant factor in the development and persistence of ocular allergies.
  • Targeting epithelial barrier repair presents a promising avenue for novel preventive and therapeutic interventions in OA.