Neither signal transducer and activator of transcription 3 (STAT3) or STAT5 signaling pathways are required for leptin's effects on fertility in mice.

Neither signal transducer and activator of transcription 3 (STAT3) or STAT5 signaling pathways are required for leptin's effects on fertility in mice.
复制标题

瘦素对小鼠生育能力的影响不需要信号转导器和转录激活子 3 (STAT3) 或 STAT5 信号通路。

DOI:
10.1210/en.2013-1109
复制
发表时间:
2013
期刊:
影响因子:
4.8
通讯作者:
G. Anderson
G. Anderson
中科院分区:
医学2区
文献类型:
--
作者:
Amritha V Singireddy;Megan A. Inglis;W. Zuure;Joon S. Kim;G. Anderson

文献摘要

参考文献

被引文献

相似文献

瘦素是调节能量平衡和生育能力的关键激素。长型瘦素受体(LepR)调节多种细胞内信号级联,包括经典的Janus激酶-信号转导子和转录激活子(STAT)通路。先前的研究表明,STAT 3或与之密切相关的STAT 5从大脑中缺失会导致肥胖表型,但它们在生育调节中的作用尚不清楚。这项研究测试了瘦素信号转导的STAT 3和STAT 5途径是否是生育所必需的,以及一种途径的缺失是否可以通过另一种途径以冗余的方式进行补偿。使用Cre-loxP方法产生具有STAT 3、STAT 5或STAT 3和STAT 5两者的LepR特异性缺失的雄性和雌性转基因小鼠的3个模型。在所有敲除(KO)小鼠及其对照同窝仔中测量体重、青春期开始、发情周期和生育力。从表达LepR的细胞中敲除STAT 3或STAT 3和5两者,而不是单独敲除STAT 5,导致体重显著增加。与其对照同窝小鼠相比,所有STAT 3和STAT 5单KO小鼠均表现出正常的青春期开始和随后的生育力。令人惊讶的是,所有STAT 3和STAT 5双KO小鼠也表现出正常的青春期开始、发情周期和生育能力,尽管它们严重破坏了体重调节。这些结果表明,虽然STAT 3信号是至关重要的体重调节,无论是STAT 3或STAT 5是由瘦素调节生育所必需的。还需要确定哪些其他信号分子介导瘦素的这种作用,以及它们是否以冗余的方式相互作用。
The hormone leptin is critical for the regulation of energy balance and fertility. The long-form leptin receptor (LepR) regulates multiple intracellular signaling cascades, including the classic Janus kinase-signal transducer and activator of transcription (STAT) pathways. Previous studies have shown that deletion of STAT3 or the closely related STAT5 from the brain results in an obese phenotype, but their roles in fertility regulation are not clear. This study tested whether STAT3 and STAT5 pathways of leptin signaling are required for fertility, and whether absence of one pathway might be compensated for by the other in a redundant manner. A Cre-loxP approach was used to generate 3 models of male and female transgenic mice with LepR-specific deletion of STAT3, STAT5, or both STAT3 and STAT5. Body weight, puberty onset, estrous cyclicity, and fertility were measured in all knockout (KO) mice and their control littermates. Knocking out STAT3 or both STAT3 and 5 from LepR expressing cells, but not STAT5 alone, led to significant increase in body weight. All STAT3 and STAT5 single KO mice exhibited normal puberty onset and subsequent fertility compared to their control littermates. Surprisingly, all STAT3 and STAT5 double KO mice also exhibited normal puberty onset, estrous cyclicity, and fertility, although they had severely disrupted body weight regulation. These results suggest that, although STAT3 signaling is crucial for body weight regulation, neither STAT3 nor STAT5 is required for the regulation of fertility by leptin. It remains to be determined what other signaling molecules mediate this effect of leptin, and whether they interact in a redundant manner.
DOI: 10.1210/me.2007-0389
发表时间: 2008-03-01
影响因子: --
作者:
Piper, Merisa L.;Unger, Elizabeth K.;Xu, Allison W.
通讯作者: Xu, Allison W.
DOI: 10.1210/endo.138.3.5024
发表时间: 1997-03
期刊: Endocrinology
影响因子: 4.8
作者:
K. Mounzih;R. Lu;Farid F. Chehab
通讯作者: K. Mounzih;R. Lu;Farid F. Chehab
生长激素 (GH) 受体以及 JAK1 和 JAK2 激酶在 GH 激活 Stats 1、3 和 5 中的作用。
DOI: 10.1210/mend.10.5.8732683
发表时间: 1996
期刊: Molecular endocrinology (Baltimore, Md.)
影响因子: --
作者:
Smit,LS;Meyer,DJ;Billestrup,N;Norstedt,G;Schwartz,J;Carter-Su,C
通讯作者: Carter-Su,C
体内生长激素治疗可快速刺激酪氨酸磷酸化和 Stat3 的激活。
DOI: 10.1210/mend.9.2.7776967
发表时间: 1995
期刊: Molecular endocrinology (Baltimore, Md.)
影响因子: --
作者:
Gronowski,AM;Zhong,Z;Wen,Z;Thomas,MJ;DarnellJr,JE;Rotwein,P
通讯作者: Rotwein,P
DOI: 10.1210/en.2010-1100
发表时间: 2011-04-01
期刊: ENDOCRINOLOGY
影响因子: 4.8
作者:
Quennell, Janette H.;Howell, Christopher S.;Anderson, Greg M.
通讯作者: Anderson, Greg M.