期刊
CURRENT OPINION IN RHEUMATOLOGY
卷 25, 期 2, 页码 248-253出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/BOR.0b013e32835c7e32
关键词
autoimmune disease; IFN-regulated gene expression; interferon signature; type I interferon
类别
资金
- Swedish Research Council
- Swedish Rheumatism Foundation
- Torsten Soderberg Foundation
- King Gustaf V's 80-year Foundation
- Combine
- Knut and Alice Wallenberg Foundation
Purpose of review An increased expression of type I interferon (IFN) regulated genes (an IFN signature) has been reported in blood and tissue cells from patients with SLE and other autoimmune diseases. We review the possible mechanisms behind the IFN signature as well as clinical and therapeutic consequences of this observation. Recent findings Autoantigens from dying cells trigger plasmacytoid dendritic cells to a continuous synthesis of type I IFN, which is promoted by natural killer (NK) cells and B cells. A growing number of genes connected to type I IFN production and response associates with an increased susceptibility to autoimmunity. Besides type I IFN, type III IFN (IFN-lambda) may contribute to the IFN signature. In SLE and primary Sjogren's syndrome, a prominent IFN signature is connected to an active disease, whereas in rheumatoid arthritis the IFN signature defines a disease subset with poor clinical outcome and treatment failure to B-cell depleting therapy. Several therapies aiming to inhibit the IFN signature are in clinical trials and early data suggest clinical benefits without major safety problems. Summary The observed IFN signature in several autoimmune diseases is a biomarker of active disease and is investigated as a tool when selecting treatment for individual patients.
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