期刊
FEBS LETTERS
卷 586, 期 4, 页码 368-372出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.febslet.2012.01.001
关键词
GPR84; Medium-chain fatty acid; Adiponectin; Adipose tissue; TNF alpha
资金
- Ministry of Education, Science and Culture of Japan [22500331]
- Grants-in-Aid for Scientific Research [22500331] Funding Source: KAKEN
In this study we aimed to identify the physiological roles of G protein-coupled receptor 84 (GPR84) in adipose tissue, together with medium-chain fatty acids (MCFAs), the specific ligands for GPR84. In mice, high-fat diet up-regulated GPR84 expression in fat pads. In 3T3-L1 adipocytes, co-culture with a macrophage cell line, RAW264, or TNF alpha remarkably enhanced GPR84 expression. In the presence of TNF alpha, MCFAs down-regulated adiponectin mRNA expression in 3T3-L1 adipocytes. Taken together, our results suggest that GPR84 emerges in adipocytes in response to TNF alpha from infiltrating macrophages and exacerbates the vicious cycle between adiposity and diabesity. (C) 2012 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.
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