Ablation of PRDM16 and beige adipose causes metabolic dysfunction and a subcutaneous to visceral fat switch.

Ablation of PRDM16 and beige adipose causes metabolic dysfunction and a subcutaneous to visceral fat switch.
复制标题

DOI:
10.1016/j.cell.2013.12.021
复制
发表时间:
2014-01-16
期刊:
影响因子:
64.5
通讯作者:
Spiegelman BM
Spiegelman BM
中科院分区:
生物学1区
文献类型:
--
作者:
Cohen P;Levy JD;Zhang Y;Frontini A;Kolodin DP;Svensson KJ;Lo JC;Zeng X;Ye L;Khandekar MJ;Wu J;Gunawardana SC;Banks AS;Camporez JP;Jurczak MJ;Kajimura S;Piston DW;Mathis D;Cinti S;Shulman GI;Seale P;Spiegelman BM

文献摘要

参考文献

被引文献

相似文献

内脏肥胖和2型糖尿病之间存在明显的关系,而皮下肥胖则相对良性。在这里,我们表明,脂肪细胞特异性的共调节蛋白PRDM16的缺失对经典的棕色脂肪的影响很小,但在冷暴露或β3激动剂治疗后,显着抑制了皮下脂肪中的米色脂肪细胞的功能。这些动物在高脂肪饮食下患上肥胖症,并伴有严重的胰岛素抵抗和肝脏脂肪变性。他们还显示脂肪分布改变,皮下脂肪显著增加。突变小鼠的皮下脂肪组织获得了内脏脂肪的许多关键特性,包括生热减少和炎症基因表达增加,巨噬细胞聚集增加。将皮下脂肪移植到饮食诱导肥胖的小鼠身上,当组织来自PRDM16突变动物时,显示出代谢益处的丧失。这些发现表明,PRDM16和米色脂肪细胞对于白色脂肪的“褐变”和皮下脂肪组织的健康效果是必需的。
A clear relationship exists between visceral obesity and type 2 diabetes, whereas subcutaneous obesity is comparatively benign. Here we show that adipocyte-specific deletion of the coregulatory protein PRDM16 caused minimal effects on classical brown fat but markedly inhibited beige adipocyte function in subcutaneous fat following cold exposure or β3-agonist treatment. These animals developed obesity on a high fat diet, with severe insulin resistance and hepatic steatosis. They also showed altered fat distribution with markedly increased subcutaneous adiposity. Subcutaneous adipose tissue in mutant mice acquired many key properties of visceral fat, including decreased thermogenic and increased inflammatory gene expression and increased macrophage accumulation. Transplantation of subcutaneous fat into mice with diet-induced obesity showed a loss of metabolic benefit when tissues were derived from PRDM16 mutant animals. These findings indicate that PRDM16 and beige adipocytes are required for the “browning” of white fat and the healthful effects of subcutaneous adipose tissue.
在条件X-box结合蛋白-1(XBP1)敲除小鼠中,从肝胰岛素抵抗中从肝胰岛素抵抗中解离肌醇提取酶(IRE1α)介导的C-JUN N末端激酶激活。
DOI: 10.1074/jbc.m111.316760
发表时间: 2012-01-20
期刊: The Journal of biological chemistry
影响因子: --
作者:
Jurczak MJ;Lee AH;Jornayvaz FR;Lee HY;Birkenfeld AL;Guigni BA;Kahn M;Samuel VT;Glimcher LH;Shulman GI
通讯作者: Shulman GI
DOI: 10.2337/db09-1471
发表时间: 2010-02
期刊: Diabetes
影响因子: 7.7
作者:
Butler AA;Kozak LP
通讯作者: Kozak LP
DOI: 10.1002/dvg.20630
发表时间: 2010-07
期刊: GENESIS
影响因子: 1.5
作者:
Lepper, Christoph;Fan, Chen-Ming
通讯作者: Fan, Chen-Ming
DOI: 10.1073/pnas.0600994103
发表时间: 2006-08-08
影响因子: 11.1
作者:
Gao, Fei;Maiti, Sourindra;Huff, Vicki
通讯作者: Huff, Vicki
DOI: 10.1016/0092-8674(93)90515-r
发表时间: 1993-08-27
期刊: CELL
影响因子: 64.5
作者:
KREIDBERG, JA;SARIOLA, H;JAENISCH, R
通讯作者: JAENISCH, R