Class II major histocompatibility complex plays an essential role in obesity-induced adipose inflammation.
Class II major histocompatibility complex plays an essential role in obesity-induced adipose inflammation.
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DOI:
10.1016/j.cmet.2013.02.009
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发表时间:
2013-03-05
期刊:
影响因子:
29
通讯作者:
Hsueh WA
中科院分区:
文献类型:
--
作者:
Deng T;Lyon CJ;Minze LJ;Lin J;Zou J;Liu JZ;Ren Y;Yin Z;Hamilton DJ;Reardon PR;Sherman V;Wang HY;Phillips KJ;Webb P;Wong ST;Wang RF;Hsueh WA
Adipose-resident T-cells (ARTs) regulate metabolic and inflammatory responses in obesity, but ART activation signals are poorly understood. Here, we describe class II major histocompatibility complex (MHCII) as an important component of high-fat diet (HFD)-induced obesity. Microarray analysis of primary adipocytes revealed that multiple genes involved in MHCII antigen processing and presentation increased in obese women. In mice, adipocyte MHCII increased within two weeks HFD, paralleling increases in pro-inflammatory and decreases in anti-inflammatory ART markers, and preceding adipose tissue macrophage (ATM) accumulation and pro-inflammatory M1 polarization. Mouse 3T3-L1 and primary adipocytes activated T-cells in an antigen-specific, contact-dependent manner, indicating adipocyte MHCII is functional. HFD-fed MHCII−/− mice developed less adipose inflammation and insulin resistance than wild-type mice, despite developing similar adiposity. These investigations uncover a mechanism whereby a HFD-induced adipocyte/ART dialogue involving MHCII instigates adipose inflammation and, together with ATM MHCII, escalates its progression.
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DOI:
10.1038/nri2888
发表时间:
2011-02
期刊:
Nature reviews. Immunology
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1016/j.ecl.2008.09.002
发表时间:
2008-12
影响因子:
4.5
作者:
Lara-Castro, Cristina;Garvey, W. Timothy
通讯作者:
Garvey, W. Timothy
影响因子:
4.6
作者:
Fernández-Riejos P;Najib S;Santos-Alvarez J;Martín-Romero C;Pérez-Pérez A;González-Yanes C;Sánchez-Margalet V
通讯作者:
Sánchez-Margalet V
影响因子:
82.9
作者:
Arkan, MC;Hevener, AL;Karin, M
通讯作者:
Karin, M
影响因子:
4.8
作者:
Fischer-Posovszky, Pamela;Wang, Qiong A.;Scherer, Philipp E.
通讯作者:
Scherer, Philipp E.