Type I Interferon as a Target of Treatment in SLE
Systemic lupus erythematosus (SLE) is a multi-organ autoimmune disease characterized by the production of antibodies against a spectrum of autoantigens. Recent evidence suggests that type-I interferons (IFN-I) are critically involved in the pathogenesis of SLE. Initially recognized for their anti-viral properties, IFN-I play important roles in immunity and autoimmunity by promoting DC maturation, T cell survival, and antibody production. Onset of SLE has been reported in patients with hepatitis or neoplastic diseases undergoing treatment with recombinant IFN-I while elevated serum IFN-I and IFN-stimulated gene expression are found in ∼2/3 of SLE patients. This “interferon signature” is clinically important as it correlates with disease activity and renal as well as CNS involvement. Supporting these findings, genetic abnormalities resulting in increased IFN-I production and/or signaling are associated with SLE. In view of the accumulating evidence linking IFN-I to the pathogenesis of SLE, targeting of IFN-I may be beneficial therapeutically while avoiding the side effects associated with conventional immunosuppressive therapy. To this end, IFN-I and IFN-producing cells as well as IFN-inducers and molecules of the IFN signaling pathway may all serve as potential therapeutic targets. Several anti-IFN-I approaches have already shown promising effects in animal studies and clinical trials will likely begin in the near future.
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Document Type: Research Article
Affiliations: Division of Rheumatology & Clinical Immunology, University of Florida, PO Box 100221, Gainesville, FL 32610-0221, USA.
Publication date: 2006-12-01
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- This journal is devoted to timely reviews of experimental and clinical studies in the field of endocrine, metabolic, and immune disorders. Specific emphasis is placed on humoral and cellular targets for natural, synthetic, and genetically engineered drugs that enhance or impair endocrine, metabolic, and immune parameters and functions. Topics related to the neuroendocrine-immune axis are given special emphasis in view of the growing interest in stress-related, inflammatory, autoimmune, and degenerative disorders.