Open AccessDivergent Expression of IL-1 Receptor Antagonists in CD34+ Fibrocytes and Orbital Fibroblasts in Thyroid-associated Ophthalmopathy: Contribution of Fibrocytes to Orbital Inflammation
Author(s) -
Bin Li,
Terry J. Smith
Publication year - 2013
Publication title -
the journal of clinical endocrinology and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.206
H-Index - 353
eISSN - 1945-7197
pISSN - 0021-972X
DOI - 10.1210/jc.2013-1245
Subject(s) - fibrocyte , biology , inflammation , receptor , endocrinology , microbiology and biotechnology , medicine , immunology , pathology
Thyroid-associated ophthalmopathy (TAO) manifests as inflammation of orbital connective tissue. Bone marrow-derived CD34⁺ fibrocytes infiltrate the orbit in TAO where they become CD34⁺ orbital fibroblasts. They express thyroid-specific antigens and thus may contribute to inflammation. Evidence suggests that orbital susceptibility to TAO may involve IL-1, which is modulated by IL-1 receptor antagonists, designated secreted (sIL-1RA) and intracellular (icIL-1RA).
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