阿迪波斯ZFP36可以防止饮食引起的肥胖和胰岛素抵抗
Yang Hu1, Jinghan Hai1, Yun Ti1
1State Key Laboratory for Innovation and Transformation of Luobing Theory, Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, Department of Cardiology, Qilu Hospital of Shandong University, Jinan, China.
Metabolism: clinical and experimental
|January 6, 2025
概括
脂肪ZFP36蛋白在肥胖症中是下调的. 缺乏脂肪ZFP36通过影响脂肪细胞大小和关键代谢途径,加剧了饮食引起的肥胖和胰岛素抵抗.
科学领域:
- 代谢障碍 代谢障碍 代谢障碍
- 肥胖研究的研究.
- 分子生物学分子生物学
背景情况:
- 肥胖是一个全球性的健康问题.
- ZFP36是一种RNA结合蛋白,调节生理过程.
- 脂肪ZFP36在肥胖和胰岛素抵抗中的作用尚不清楚.
研究的目的:
- 研究脂肪ZFP36在肥胖中的作用.
- 为了确定ZFP36是否能防止饮食引起的肥胖.
- 阐明ZFP36在代谢调节中的分子机制.
主要方法:
- 在肥胖者和小鼠中分析了ZFP36的表达.
- 生成脂肪特异性的ZFP36淘汰赛 (ZFP36AKO) 鼠标.
- 接受高脂肪饮食 (HFD) 的小鼠和评估的代谢参数.
- 利用基因阵列测定和体外/体外研究来探索分子途径.
主要成果:
- 在肥胖个体和小鼠的脂肪组织中,ZFP36的表达下调.
- ZFP36AKO小鼠表现出对HFD诱导的肥胖,胰岛素耐药性和葡萄糖不耐受性的敏感性增加.
- 在ZFP36AKO小鼠中,肥胖与脂肪细胞缩和PLIN1,ATGL和HSL的表达减少有关.
- 发现ZFP36抑制了RNF128表达,这是Sirt1.1的负调节者.
结论:
- 脂质ZFP36在饮食引起的肥胖中起着重要作用.
- 确定了一种涉及肥胖的新型ZFP36/RNF128/Sirt1信号通路.
- 建议ZFP36作为肥胖和相关代谢障碍的潜在治疗标.
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