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© Research
Publication : Diabetes

Interferon-alpha as a mediator of polyinosinic:polycytidylic acid-induced type 1 diabetes

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Diabetes - 01 Sep 2005

Devendra D, Jasinski J, Melanitou E, Nakayama M, Li M, Hensley B, Paronen J, Moriyama H, Miao D, Eisenbarth GS, Liu E

Link to Pubmed [PMID] – 16123342

Diabetes 2005 Sep;54(9):2549-56

A number of studies and clinical case reports have implicated interferon (IFN)-alpha as a potential mediator of type 1 diabetes pathogenesis. Administration of polyinosinic:polycytidylic acid (poly I:C), a mimic of viral double-stranded RNA, induces diabetes in C57BL/6 mice expressing the B7.1 costimulatory molecule in islets. We investigated the potential role of IFN-alpha in this disease model. The quantitative correlation between IFN-alpha levels and time to diabetes, diabetes prevention with anti-IFN-alpha antibody, and ability of IFN-alpha itself to induce diabetes are consistent with the hypothesis that poly I:C in this model acts by induction of IFN-alpha in a genetically susceptible host. Numerous recent studies highlight the importance of the innate immune system and toll receptors in determining adaptive immune responses, and we speculate that for type 1 diabetes, viral and other environmental factors may act through induction of IFNs.

http://www.ncbi.nlm.nih.gov/pubmed/16123342