Sep 3, 2013

Regulatory T cells and Atherosclerosis

Journal of Clinical & Experimental Cardiology
Jahaira Lopez PastranaXiao-Feng Yang

Abstract

Atherosclerosis is a chronic autoimmune inflammatory disease. The involvement of both innate and adaptive immune responses in the pathogenesis of the disease has been well recognized. Tregs are an essential part of the immune system and have indispensable functions in maintaining immune system homeostasis, mediating peripheral tolerance, preventing autoimmune diseases, and suppressing inflammatory and proatherogenic immune response. Tregs carry out their immunosuppressive functions via several mechansims. One of the well-documented suppressive mechanisms of Tregs is the secretion of anti-inflammatory cytokines including IL-10, TGF-β, and IL-35. Studies have found that IL-10 and TGF-β have atheroprotective properties. In addition, Tregs can suppress the activity of proatherogenic effector T cells, suggesting an atheroprotective role. In fact, fewer Tregs are found in atherogenic ApoE-/- mice comparing to wild-type mice, suggesting an uncontrolled balance between weakened Tregs and effector T cells in atherogenesis. Some clinical studies of autoimmune diseases also suggest that decreased Tregs numbers are associated with increased disease activity. The importance of Tregs in many autoimmune diseases and experimental atheroscleros...Continue Reading

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Mentioned in this Paper

Immune Response
Pathogenic Aspects
Immune System
Pathogenesis
Recombinant Interleukin-10
Anti-Inflammatory Agents
Inflammatory Disorder
Process of Secretion
Interleukin-10 Binding Activity
Human Interleukin-10 (Nonglycosylated)

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