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Chinese Journal of Ophthalmologic Medicine(Electronic Edition) ›› 2024, Vol. 14 ›› Issue (06): 368-374. doi: 10.3877/cma.j.issn.2095-2007.2024.06.009

• Review • Previous Articles    

Research progress in the role of typeⅡinnate lymphoid cells and their upstream molecules in the pathogenesis of allergic conjunctivitis

Qi Liu1, Xiaofen Zheng2,()   

  1. 1.Master's degree 2022,the First Clinical Medical College of Shanxi Medical University,Taiyuan 030331,China
    2.Department of Keratology,Shanxi Eye Hospital,Taiyuan 030002,China
  • Received:2024-10-06 Online:2024-12-28 Published:2025-03-03
  • Contact: Xiaofen Zheng

Abstract:

Allergic conjunctivitis(AC)is a common allergic disease of the human ocular surface whose pathogenesis is complex and is primarily thought to be an immune response mediated by immunoglobulin E(IgE)or T lymphocytes.Currently,one of the main pathogenic mechanisms of allergic inflammation is thought to be the T helper cell(Th2)-dominated hypersensitivity reaction,but little is known about other upstream channels of allergy.Emerging studies have revealed new cellular and molecular mechanisms by which the epithelium activates typeⅡinnate lymphoid cell(ILC2)through the production of pro-allergic cytokines,eg.interleukin(IL)-33,thymic stromal lymphopoietin(TSLP),etc.that in turn modulate the Th2 response.Furthermore,it was concluded that the type 2 immune response driven by ocular surface innate immunity is dependent on the involvement of IL-33,TSLP,basophils,and ILC2 in a mouse model of conjunctivitis induced by papain-impregnated contact lenses.At present,the mechanism of action of ILC2 and epithelial pro-allergic cytokines(IL-33,TSLP,etc.)in the pathogenesis of AC has not been fully elucidated.Therefore,the current status of research on ILC2 and their upstream molecules in the pathogenesis of allergic conjunctivitis was reviewed in this paper.

Key words: Allergic, Conjunctivitis, T helper cell, Innate lymphoid cell 2, Interleukin-33, Thymic stromal lymphhopoietin

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