期刊
CURRENT RHEUMATOLOGY REPORTS
卷 19, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1007/s11926-017-0678-0
关键词
Systemic lupus erythematosus; Platelets; Microparticles; Auto-immunity
类别
Purpose of review Current knowledge on the role of platelets and platelet-derived microparticles (PMPs) on the immune system has been fast-growing. Systemic lupus erythematosus (SLE) is a systemic auto-immune disorder characterized by a loss of tolerance toward nuclear auto-antigens. Although recent studies allowed a better understanding of SLE pathogenesis, there is an urgent need for the development of new treatments and the identification of new biomarkers to assess the disease activity. We describe here the state-of-the-art knowledge linking platelets and PMPs to SLE. Recent findings Platelet system activation is a key event in the pathogenesis of SLE. Circulating immune complexes, antiphospholipid antibodies, and infectious agents such as virus are the main activators of platelets in SLE. Platelet activation can be monitored through different ways such as P-selectin expression, mean platelet volume, or circulating PMP levels, suggesting their potential use as biomarkers. Upon activation, platelets promote type I interferon production, NETosis, dendritic cell activation, and T and B lymphocyte activation, all essential events contributing to the development of SLE. Of interest, platelets also play a fundamental role in SLE organ disease such as the development of cardiovascular, thrombotic, and renal diseases. Finally, we review current knowledge on drugs targeting platelet activation and their potential impact on SLE pathogenesis. Summary Platelets play a major role in SLE pathogenesis and organ disease and represent a great potential for novel biomarkers and drug development.
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