Role of Jhdm2a in regulating metabolic gene expression and obesity resistance.

Role of Jhdm2a in regulating metabolic gene expression and obesity resistance.
复制标题

DOI:
10.1038/nature07777
复制
发表时间:
2009-04-09
期刊:
影响因子:
64.8
通讯作者:
Zhang, Yi
Zhang, Yi
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Tateishi, Keisuke;Okada, Yuki;Kallin, Eric M.;Zhang, Yi

文献摘要

参考文献

被引文献

相似文献

最近的研究表明,组蛋白甲基化状态可以通过组蛋白甲基转移酶和去甲基化酶进行动态调节。H3 K9特异性脱甲基酶Jhdm 2a(也称为Jmjd 1a和Kdm 3a)在核激素受体介导的基因激活和雄性生殖细胞发育中起重要作用。通过在小鼠中破坏Jhdm 2a基因,在这里,我们证明了Jhdm 2a在调节代谢基因的表达中至关重要。Jhdm 2a功能的丧失导致小鼠肥胖和高脂血症。我们提供的证据表明,Jhdm 2a功能的丧失破坏了β-肾上腺素能刺激的甘油释放和棕色脂肪中的耗氧量,并减少了骨骼肌中的脂肪氧化和甘油释放。我们发现Jhdm 2a的表达是由β-肾上腺素能刺激诱导的,并且Jhdm 2a直接调节过氧化物酶体增殖物激活受体α(Ppara)和Ucp 1的表达。此外,我们证明β-肾上腺素能激活诱导的Jhdm 2a与Ucp 1基因的PPAR反应元件(PPRE)的结合不仅降低了PPRE处H3 K9 me 2(组蛋白H3赖氨酸9的二甲基化)的水平,而且还促进了Pparγ和Rxrα及其共激活剂Pgc 1a α(也称为Ppargc 1a),CBP/ p300(Crebbp)和Src 1(Ncoa 1)向PPRE的募集。因此,我们的研究证明了Jhdm 2a在调节小鼠代谢基因表达和正常体重控制中的重要作用。
Recent studies indicate that the methylation state of histones can be dynamically regulated by histone methyltransferases and demethylases. The H3K9-specific demethylase Jhdm2a (also known as Jmjd1a and Kdm3a) has an important role in nuclear hormone receptor-mediated gene activation and male germ cell development. Through disruption of the Jhdm2a gene in mice, here we demonstrate that Jhdm2a is critically important in regulating the expression of metabolic genes. The loss of Jhdm2a function results in obesity and hyperlipidemia in mice. We provide evidence that the loss of Jhdm2a function disrupts β-adrenergic-stimulated glycerol release and oxygen consumption in brown fat, and decreases fat oxidation and glycerol release in skeletal muscles. We show that Jhdm2a expression is induced by β-adrenergic stimulation, and that Jhdm2a directly regulates peroxisome proliferator-activated receptor α (Ppara) and Ucp1 expression. Furthermore, we demonstrate that β-adrenergic activation-induced binding of Jhdm2a to the PPAR responsive element (PPRE) of the Ucp1 gene not only decreases levels of H3K9me2 (dimethylation of lysine 9 of histone H3) at the PPRE, but also facilitates the recruitment of Pparγ and Rxrα and their co-activators Pgc1aα(also known as Ppargc1a), CBP/ p300 (Crebbp) and Src1 (Ncoa1) to the PPRE. Our studies thus demonstrate an essential role for Jhdm2a in regulating metabolic gene expression and normal weight control in mice.
DOI: 10.1038/387090a0
发表时间: 1997-05-01
期刊: NATURE
影响因子: 64.8
作者:
Enerback, S;Jacobsson, A;Kozak, LP
通讯作者: Kozak, LP
DOI: 10.1016/j.bbrc.2007.04.003
发表时间: 2007-06-15
影响因子: 3.1
作者:
Bedu, E.;Desplanches, D.;Desvergne, B.
通讯作者: Desvergne, B.
DOI: 10.1210/me.7.4.497
发表时间: 1993-04-01
影响因子: --
作者:
CASSARDDOULCIER, AM;GELLY, C;RICQUIER, D
通讯作者: RICQUIER, D
DOI: 10.1016/j.cmet.2005.01.006
发表时间: 2005-02-01
期刊: CELL METABOLISM
影响因子: 29
作者:
Finck, BN;Bernal-Mizrachi, C;Kelly, DP
通讯作者: Kelly, DP
DOI: 10.1016/s0303-7207(02)00300-3
发表时间: 2003-07-31
影响因子: 4.1
作者:
Lopez, D;Irby, RB;McLean, MP
通讯作者: McLean, MP