当前位置: X-MOL 学术Comp. Biochem. Physiol. D Genom. Proteom. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Quantitative proteomics analysis of membrane glucocorticoid receptor activation in rainbow trout skeletal muscle.
Comparative Biochemistry and Physiology D: Genomics & Proteomics ( IF 3 ) Pub Date : 2019-10-19 , DOI: 10.1016/j.cbd.2019.100627
Jorge E Aedo 1 , Marcia Fuentes-Valenzuela 1 , Alfredo Molina 2 , Juan A Valdés 2
Affiliation  

Cortisol modulates energy metabolism promoting the mobilization of glucose and increasing proteolysis to overcome stressful situations in teleost. The cortisol metabolic effects are attributed to genomic mechanisms that involve the interaction of cortisol with its glucocorticoid intracellular receptor. Furthermore, cortisol can also interact with plasma membrane glucocorticoid receptors activating a rapid nongenomic signaling; however, its contribution during the early acute phase stress response in fish is unknown. In the present work, we evaluated the effects of membrane-initiated cortisol actions in vivo in the proteome of rainbow trout (Oncorhynchus mykiss) skeletal muscle. Quantitative iTRAQ analyses were performed to examine proteomic changes in rainbow trout stimulated with physiological concentrations of cortisol and cortisol-BSA, a membrane-impermeable cortisol conjugate. A total of 873 proteins were identified, among which 61 and 47 proteins were differentially expressed under cortisol and cortisol-BSA treatments, respectively. Functional clustering analysis revealed an upregulation of proteins associated with mitochondria and oxidative phosphorylation. These results were validated by Western blot analysis. Additionally, using rainbow trout myotubes, the participation of membrane glucocorticoid receptors in gene expression was evaluated. The results obtained suggest that cortisol acts through a membrane canonical glucocorticoid receptor and mediates the expression of proteins associated with mitochondrial oxidative phosphorylation.

中文翻译:

虹鳟鱼骨骼肌中膜糖皮质激素受体激活的定量蛋白质组学分析。

皮质醇调节能量代谢,促进葡萄糖的动员并增加蛋白水解作用,以克服硬骨症中的压力情况。皮质醇的代谢作用归因于涉及皮质醇与其糖皮质激素细胞内受体相互作用的基因组机制。此外,皮质醇还可以与质膜糖皮质激素受体相互作用,从而激活快速的非基因组信号传导。然而,其在鱼类早期急性应激反应中的作用尚不清楚。在目前的工作中,我们评估了虹膜鳟鱼骨骼肌蛋白质组中膜启动的皮质醇在体内的作用。进行了定量iTRAQ分析,以检查生理浓度的皮质醇和皮质醇-BSA刺激的虹鳟鱼的蛋白质组学变化,膜不可渗透的皮质醇共轭物。总共鉴定出873种蛋白质,其中61种和47种蛋白质分别在皮质醇和皮质醇-BSA处理下差异表达。功能聚类分析显示与线粒体和氧化磷酸化有关的蛋白质上调。这些结果通过蛋白质印迹分析证实。另外,使用虹鳟鱼肌管,评估了膜糖皮质激素受体在基因表达中的参与。获得的结果表明,皮质醇通过膜经典糖皮质激素受体起作用,并介导与线粒体氧化磷酸化相关的蛋白质的表达。在皮质醇和皮质醇-BSA处理下,分别有61和47种蛋白差异表达。功能聚类分析显示与线粒体和氧化磷酸化有关的蛋白质上调。这些结果通过蛋白质印迹分析证实。另外,使用虹鳟鱼肌管,评估了膜糖皮质激素受体在基因表达中的参与。获得的结果表明,皮质醇通过膜经典糖皮质激素受体起作用,并介导与线粒体氧化磷酸化相关的蛋白质的表达。在皮质醇和皮质醇-BSA处理下,分别有61和47种蛋白差异表达。功能聚类分析显示与线粒体和氧化磷酸化有关的蛋白质上调。这些结果通过蛋白质印迹分析证实。另外,使用虹鳟鱼肌管,评估了膜糖皮质激素受体在基因表达中的参与。获得的结果表明,皮质醇通过膜经典糖皮质激素受体起作用,并介导与线粒体氧化磷酸化相关的蛋白质的表达。这些结果通过蛋白质印迹分析证实。另外,使用虹鳟鱼肌管,评估了膜糖皮质激素受体在基因表达中的参与。获得的结果表明,皮质醇通过膜经典糖皮质激素受体起作用,并介导与线粒体氧化磷酸化相关的蛋白质的表达。这些结果通过蛋白质印迹分析得到证实。另外,使用虹鳟鱼肌管,评估了膜糖皮质激素受体在基因表达中的参与。获得的结果表明,皮质醇通过膜经典糖皮质激素受体起作用,并介导与线粒体氧化磷酸化相关的蛋白质的表达。
更新日期:2019-10-19
down
wechat
bug