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  • Title: Cytokines and immune regulation in thyroid autoimmunity.
    Author: Nagataki S, Eguchi K.
    Journal: Autoimmunity; 1992; 13(1):27-34. PubMed ID: 1420803.
    Abstract:
    We studied the role of cytokines and immune regulation in thyroid tissue from patients with Graves' disease. Immunohistochemistry showed that the thyroid glands are characterized by an aberrant expression of HLA class II antigens on thyrocytes, generation of new blood vessels and infiltration of mononuclear cells. We demonstrated that CD4+ memory cells were more frequent in thyroid glands from Graves' patients than were CD4+ naive cells. The intrathyroidal T cells demonstrated an enhanced expression of the adhesion molecules LFA-1, CD2, VLA-4 and VLA-5, and vascular endothelial cells of capillaries and thyrocytes in thyroid glands reacted with anti-ICAM-1 monoclonal antibody. The adhesion molecules and HLA antigens on both vascular endothelial cells and thyrocytes were regulated by inflammatory cytokines. These results suggest that circulating lymphocytes migrate into thyroid tissues and that memory T cells are retained in the thyroid tissues by cellular interactions with thyrocytes or with extracellular matrix.
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