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<p>The epithelial barrier in different organs is the first line of defense against environmental insults and allergens, with type 2 immunity serving as a protective function. Genetic factors, and biological and chemical insults from the surrounding environment altered regulate epithelial homeostasis through disruption of epithelial tight junction proteins or dilated intercellular spaces. Recent studies suggest that epithelial barrier dysfunction contributes to pathologic alteration in diseases with type 2 immune dysregulation including (but not limited to) atopic dermatitis, prurigo nodularis, asthma, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis. In this review, we summarized current understanding of dysfunction of barrier and its interaction with type 2 inflammation across different organs, and discussed the role of epithelial barrier disruption in the pathogenesis of type 2 inflammation. In addition, recent progresses of emerging barrier restorative therapies are reviewed.</p>

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Systemic barrier dysfunction in type 2 inflammation diseases: perspective in the skin, airways, and gastrointestinal tract

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年3月11日

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  • Juan Meng,
  • Hao Xiao,
  • Feng Xu,
  • Xueke She,
  • Chuntao Liu,
  • Giorgio Walter Canonica

摘要

The epithelial barrier in different organs is the first line of defense against environmental insults and allergens, with type 2 immunity serving as a protective function. Genetic factors, and biological and chemical insults from the surrounding environment altered regulate epithelial homeostasis through disruption of epithelial tight junction proteins or dilated intercellular spaces. Recent studies suggest that epithelial barrier dysfunction contributes to pathologic alteration in diseases with type 2 immune dysregulation including (but not limited to) atopic dermatitis, prurigo nodularis, asthma, chronic rhinosinusitis with nasal polyps, and eosinophilic esophagitis. In this review, we summarized current understanding of dysfunction of barrier and its interaction with type 2 inflammation across different organs, and discussed the role of epithelial barrier disruption in the pathogenesis of type 2 inflammation. In addition, recent progresses of emerging barrier restorative therapies are reviewed.