嗜酸性粒细胞
免疫学
哮喘
呼吸上皮
炎症
上皮
生物
医学
病理
作者
Breanne N. Steffan,Elizabeth Townsend,Loren C. Denlinger,Mats W. Johansson
出处
期刊:International Archives of Allergy and Immunology
[S. Karger AG]
日期:2024-06-17
卷期号:: 1-15
摘要
<b><i>Background:</i></b> Eosinophils have numerous roles in type 2 inflammation depending on their activation states in the blood and airway or after encounter with inflammatory mediators. Airway epithelial cells have a sentinel role in the lung and, by instructing eosinophils, likely have a foundational role in asthma pathogenesis. <b><i>Summary:</i></b> In this review, we discuss various topics related to eosinophil-epithelial cell interactions in asthma, including the influence of eosinophils and eosinophil products, e.g., granule proteins, on epithelial cell function, expression, secretion, and plasticity; the effects of epithelial released factors, including oxylipins, cytokines, and other mediators on eosinophils, e.g., on their activation, expression, and survival; possible mechanisms of eosinophil-epithelial cell adhesion; and the role of intra-epithelial eosinophils in asthma. <b><i>Key Messages:</i></b> We suggest that eosinophils and their products can have both injurious and beneficial effects on airway epithelial cells in asthma and that there are bidirectional interactions and signaling between eosinophils and airway epithelial cells in asthma.
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