脂肪组织雌激素受体-阿尔法过度表达改善高脂肪饮食诱导的脂肪组织炎症
Marion C Hope1, Christian A Unger1, M Chase Kettering1
1Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, SC 29209, USA.
Journal of the Endocrine Society
|September 22, 2025
概括
脂肪组织中雌激素受体-α的升高降低了雌性小鼠的肥胖和炎症,但不是雄性小鼠. 这种有针对性的方法对治疗与肥胖相关的炎症充满希望.
科学领域:
- 内分泌学 在内分泌学.
- 代谢研究研究 代谢研究
- 肥胖研究 肥胖研究
背景情况:
- 雌激素受体α (ERα) 在新陈代谢调节中起作用.
- 了解ERα在脂肪组织中的特定功能对于代谢疾病研究至关重要.
研究的目的:
- 研究可诱导脂肪组织特异性ERα过度表达 (Adipo-ERα↑) 对高脂肪饮食 (HFD) 诱导的肥胖症对雄性和雌性小鼠的影响.
- 为了确定高Adip-ERα↑对身体组成,肝脂,葡萄糖代谢和脂肪组织炎症的性别特异性影响.
主要方法:
- 开发了一种具有脂肪组织特异性ERα过度表达 (Adipo-ERα↑) 的诱导性小鼠模型.
- 给阿迪波-ERα↑小鼠和对照群进行低脂饮食 (LFD) 或高脂饮食13周.
- 评估身体形态,组成,肝脏脂质积累,耐葡萄糖,胰岛素水平和脂肪组织基因表达. 通过液体染色学-质谱学分析性类固醇含量.
主要成果:
- 阿迪波-ERα↑显著降低了HFD养的女性的脂肪和肝脂积累,但不是男性.
- 阿迪波-ERα↑显著减少脂肪组织炎症在两性.
- 没有观察到葡萄糖耐受性或禁食胰岛素水平的显著改善. 循环和脂肪组织的性类固醇含量没有受到影响.
结论:
- 阿迪波-ERα↑对身体组成和肝脏脂质积累具有性别特异性影响,可能是由于雌激素水平的变化.
- 在脂肪组织中准ERα有效地减少了两性肥胖相关的炎症.
- 对ERα的治疗向为管理与肥胖相关的炎症提供了一个有希望的策略.
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