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  • Title: Adoptive transfer murine model of granulomatous experimental autoimmune thyroiditis.
    Author: Braley-Mullen H, Sharp GC.
    Journal: Int Rev Immunol; 2000; 19(6):535-55. PubMed ID: 11129114.
    Abstract:
    Experimental autoimmune thyroiditis (EAT) is a chronic inflammatory autoimmune disease that can be induced in genetically susceptible animals by immunization with mouse thyroglobulin (MTg) in an appropriate adjuvant or by the adoptive transfer of MTg-sensitized donor spleen cells, activated in vitro with MTg, into naive recipients. In the adoptive transfer model used in our laboratory, donor cells activated with MTg alone induce a relatively mild chronic lymphocytic form of EAT (L-EAT), in which the thyroid infiltrate consists primarily of mononuclear cells, and the thyroid inflammation persists for several months. When the same donor cells are activated with MTg together with anti-IL-2R and/or IL-12, a more severe and histologically distinct granulomatous form of EAT is induced in recipient mice. In addition to having distinct histopathologic features, granulomatous EAT (G-EAT) differs from L-EAT in that granulomatous thyroid lesions are not chronic. After reaching maximal severity 21 days after cell transfer, G-EAT thyroid lesions either resolve or the thyroids become atrophic and fibrotic by day 35. In this review, the histopathologic features of G-EAT and L-EAT are described, and our studies with the adoptive transfer G-EAT model which have focused on the mechanisms involved in induction of G-EAT in mice, and the evolution of G-EAT lesions to resolution of inflammation or fibrosis, are reviewed.
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