Knockout of inositol-requiring enzyme 1α in pro-opiomelanocortin neurons decreases fat mass via increasing energy expenditure.

Knockout of inositol-requiring enzyme 1α in pro-opiomelanocortin neurons decreases fat mass via increasing energy expenditure.
复制标题

敲除阿黑皮质素原神经元中的肌醇需求酶 1 α 可通过增加能量消耗来减少脂肪量

DOI:
10.1098/rsob.160131
复制
发表时间:
2016-08
期刊:
影响因子:
5.8
通讯作者:
Guo F
Guo F
中科院分区:
生物学2区
文献类型:
--
作者:
Xiao Y;Xia T;Yu J;Deng Y;Liu H;Liu B;Chen S;Liu Y;Guo F

文献摘要

参考文献

被引文献

相似文献

尽管肌醇需要酶1α(IRE1α)的多种功能已被确定,但IRE1α在下丘脑弓状核阿片黑素皮质素原神经元中的作用尚不清楚。在这里,我们展示了在POMC神经元(PIKO)中缺乏IRE1α的小鼠是瘦小的,并且对高脂饮食诱导的肥胖和肥胖相关的胰岛素抵抗、肝脏脂肪变性和瘦素抵抗具有抵抗力。此外,PIKO小鼠的能量消耗更高,这可能是由于棕色脂肪组织中产热增加所致。此外,α黑素细胞刺激素在PIKO小鼠的下丘脑中的产生增加。这些结果表明,前额叶神经元中的IRE1α在肥胖及其相关代谢紊乱的调节中起着重要作用。我们的结果还表明,IRE1α不仅是内质网应激感受器,而且是肥胖和肥胖相关代谢性疾病的新的潜在治疗靶点。
Although numerous functions of inositol-requiring enzyme 1α (IRE1α) have been identified, a role of IRE1α in pro-opiomelanocortin (POMC) neurons in the arcuate nucleus of the hypothalamus is largely unknown. Here, we showed that mice lacking IRE1α specifically in POMC neurons (PIKO) are lean and resistant to high-fat diet-induced obesity and obesity-related insulin resistance, liver steatosis and leptin resistance. Furthermore, PIKO mice had higher energy expenditure, probably due to increased thermogenesis in brown adipose tissue. Additionally, α-melanocyte-stimulating hormone production was increased in the hypothalamus of PIKO mice. These results demonstrate that IRE1α in POMC neurons plays a critical role in the regulation of obesity and obesity-related metabolic disorders. Our results also suggest that IRE1α is not only an endoplasmic reticulum stress sensor, but also a new potential therapeutic target for obesity and obesity-related metabolic diseases.
DOI: 10.1016/s0169-328x(00)00243-6
发表时间: 2000-12-28
期刊: MOLECULAR BRAIN RESEARCH
影响因子: --
作者:
Miyoshi, K;Katayama, T;Tohyama, M
通讯作者: Tohyama, M
DOI: 10.1038/cddis.2016.19
发表时间: 2016-02-18
影响因子: 9
作者:
Machado MV;Michelotti GA;Jewell ML;Pereira TA;Xie G;Premont RT;Diehl AM
通讯作者: Diehl AM
DOI: 10.1172/jci31743
发表时间: 2007-11-01
影响因子: 15.9
作者:
Nogueiras, Ruben;Wiedmer, Petra;Tschoep, Matthias H.
通讯作者: Tschoep, Matthias H.
DOI: 10.1172/jci59816
发表时间: 2012-03-01
影响因子: 15.9
作者:
Berglund, Eric D.;Vianna, Claudia R.;Elmquist, Joel K.
通讯作者: Elmquist, Joel K.
DOI: 10.1038/415092a
发表时间: 2002-01-03
期刊: NATURE
影响因子: 64.8
作者:
Calfon, M;Zeng, HQ;Ron, D
通讯作者: Ron, D