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Ⅰ型超敏反应的迟发相

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Author:
No author available
Journal Title:
FOREIGN MEDICAL SCIENCES(SECTION OF DERMATOLOGY AND VENEREOLOGY)
Issue:
4
DOI:
10.3760/cma.j.issn.1673-4173.2003.04.014
Key Word:
超敏反应;嗜酸细胞

Abstract: Ⅰ型超敏反应的迟发相反应发生于速发相之后的8~24 h,其特征是以嗜酸粒细胞为主的炎细胞浸润.肥大细胞是迟发相反应的主要启动细胞.Th2淋巴细胞起调控作用.嗜酸粒细胞趋化因子吸引嗜酸粒细胞至炎症区,并释放大量炎症因子及多种酶类,发生持续性炎症反应,导致组织损伤.此外,中性粒细胞、单核/巨噬细胞也通过分泌生物活性物质及酶类而参与迟发相反应.

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