Inflammatory changes in adipose tissue enhance expression of GPR84, a medium-chain fatty acid receptor TNFα enhances GPR84 expression in adipocytes

被引：79

作者：

Nagasaki, Hiroshi ^{[1
,2
,3
]}

Kondo, Takaaki ^{[3
]}

Fuchigami, Masahiro ^{[4
]}

Hashimoto, Hiroyuki ^{[4
]}

Sugimura, Yoshihisa ^{[3
]}

Ozaki, Nobuaki ^{[3
]}

Arima, Hiroshi ^{[3
]}

Ota, Akira ^{[1
]}

Oiso, Yutaka ^{[3
]}

Hamada, Yoji ^{[2
]}

机构：

[1] Fujita Hlth Univ, Sch Med, Dept Physiol, Toyoake, Aichi 4701192, Japan

[2] Nagoya Univ, Grad Sch Med, Dept Metab Med, Nagoya, Aichi 4648601, Japan

[3] Nagoya Univ, Grad Sch Med, Dept Endocrinol & Diabet, Nagoya, Aichi 4648601, Japan

[4] Sanwa Kagaku Kenkyusho Co Ltd, Tsu, Mie, Japan

来源：

FEBS LETTERS | 2012年 / 586卷 / 04期

关键词：

GPR84; Medium-chain fatty acid; Adiponectin; Adipose tissue; TNF alpha; PROTEIN-COUPLED-RECEPTOR; GHRELIN; SECRETION; OBESITY; GPR120; GPR40;

D O I：

10.1016/j.febslet.2012.01.001

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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.

引用

页码：368 / 372

页数：5

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