期刊
EMBO MOLECULAR MEDICINE
卷 4, 期 10, 页码 1072-1086出版社
WILEY-BLACKWELL
DOI: 10.1002/emmm.201201374
关键词
alternatively activated macrophages (M2); atherosclerosis; cytokines; interleukin-13; oxidized LDL
资金
- GenAU program (DRAGON)
- Austrian Academy of Sciences
- Fondation Leducq
- Austrian Science Fund (FWF) [P22838]
- Deutsche Forschungsgemeinschaft [FOR809, SFB914 TP B08]
- Austrian Science Fund (FWF) [P22838] Funding Source: Austrian Science Fund (FWF)
- Austrian Science Fund (FWF) [P 22838] Funding Source: researchfish
Atherosclerotic lesions are characterized by the accumulation of oxidized LDL (OxLDL) and the infiltration of macrophages and T cells. Cytokine expression in the microenvironment of evolving lesions can profoundly contribute to plaque development. While the pro-atherogenic effect of T helper (Th) 1 cytokines, such as IFN-gamma, is well established, the role of Th2 cytokines is less clear. Therefore, we characterized the role of the Th2 cytokine interleukin (IL)-13 in murine atherosclerosis. Here, we report that IL-13 administration favourably modulated the morphology of already established atherosclerotic lesions by increasing lesional collagen content and reducing vascular cell adhesion molecule-1 (VCAM-1)dependent monocyte recruitment, resulting in decreased plaque macrophage content. This was accompanied by the induction of alternatively activated (M2) macrophages, which exhibited increased clearance of OxLDL compared to IFN-gamma-activated (M1) macrophages in vitro. Importantly, deficiency of IL-13 results in accelerated atherosclerosis in LDLR-/- mice without affecting plasma cholesterol levels. Thus, IL-13 protects from atherosclerosis and promotes a favourable plaque morphology, in part through the induction of alternatively activated macrophages.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据