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机构地区:[1]第二军医大学上海长征医院眼科,上海200433
出 处:《国际眼科纵览》2012年第5期336-340,共5页International Review of Ophthalmology
基 金:国家自然科学基金面上项目(81070758);国家自然科学基金青年项目(81170874)
摘 要:甲状腺相关眼病(thyroid-associatedophthalmopathy,TAO)是一种自身免疫性疾病,发病机制与成纤维细胞和T细胞的相互作用所致炎症反应有关,脂肪增生是其重要的病理过程。环氧化酶-2(cyclooxygenase-2,COX-2)是一种重要的致炎因子,与多种自身免疫疾病的炎症过程相关。TAO患者眼眶中活化的T淋巴细胞过量表达COX-2,并通过与眼眶CD90-成纤维细胞表达的过氧化物酶体增生物激活受体1(peroxisomeproliferatoractivatedreceptor1,PPARγ)结合,诱导CD90-眼眶成纤维细胞分化为成熟脂肪细胞,从而促进眼眶脂肪增生的发生,因此COX-2在TAO眼眶脂肪增生中起重要作用。(国际眼科纵览,2012,36:336-340)Thyroid associated ophthalmopathy (TAO) is an autoimmune disease, it' s pathogenesis related to the inflammation caused by reaction between T cell and orbital fibroblasts, and adipogenesis is an important pathological procedure. Cyclooxygenase-2 ( COX -2) is an important proinflammatory factor associ- ated with inflammatory process of various autoimmune diseases. Recent studies have shown that COX-2 plays an important role in TAO orbital fat proliferation. Activated T lymphocytes in the orbit of TAO patients over- express COX-2, which could induct the differentiation of CD90 - orbital fibroblasts into mature adipocytes through combination with peroxisome proliferator activated receptor γ (PPARγ) expressed on the surface of CD90- orbital fibroblasts, thereby promoting the occurrence of orbital fat proliferation. (Int Rev Ophthal- mol, 2012, 36: 336-340)
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