PPARα通过影响其无化修饰来调节YAP蛋白水平和活性
Wenhong Zhou1,2, Shuaishuai Zhang1, Yao Chen1
1NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening & Guangdong-Hongkong-Macao Joint Laboratory for New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
BMC biology
|February 28, 2025
概括
过氧体增殖器激活受体α (PPARα) 的激活减少了YES相关蛋白 (YAP) 的总体泛基化,促进了其核转位和活性. 这项研究揭示了PPARα调节YAP无化,影响肝脏生长和再生.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 过氧体增殖器激活受体α (PPARα) 对于肝功能和疾病至关重要.
- 是的相关蛋白 (YAP) 调节细胞生长和器官大小.
- 乌比基因化会影响YAP的稳定性和局部化,但PPARα的调节作用尚不清楚.
研究的目的:
- 研究PPARα激活调节YAP无处不在的分子机制.
- 阐明在PPARα介导的YAP调制中无处不在的作用.
主要方法:
- 使用WY-14643.3进行PPARα激活.
- 通过等离子体转染和免疫沉来分析YAP的泛化.
- 使用突变的YAP等离子体,基因淘汰 (TRAF6),免疫光,qRT-PCR和西部涂抹的研究.
主要成果:
- PPARα激活增加了YAP蛋白水平和活性,同时降低了YAP总体的无处不在.
- PPARα 特别抑制了 K48 相关的泛化,并促进了 YAP 的 K63 相关的泛化.
- 在YAP残留物 (K252,K321,K497) 和TRAF6中发生的突变会破坏PPARα诱导的YAP核转位和基因上调.
结论:
- 乌比基因化是PPARα激活下调节YAP活动的关键机制.
- 这些发现为PPARα对YAP的翻译后调节提供了新的见解.
- 这项研究有助于了解肝脏生长和再生途径.
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