Autologous T-Lymphocytes Stimulate Proliferation of Orbital Fibroblasts Derived from Patients with Graves’ Ophthalmopathy

Abstract
Purpose. Graves’ ophthalmopathy (GO) affects 50% to 60% of patients with Graves’ hyperthyroidism, resulting in exophthalmos, periorbital edema, pain, double vision, optic neuropathy, and loss of vision. Fibroblasts are a key autoimmune target in GO and have effector functions that contribute to GO-associated pathologic conditions, including proliferation, production of excess glycosaminoglycans, and fat deposition. GO is also characterized by autoimmune inflammation of orbital connective tissue with mononuclear cell infiltration, including T cells.

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