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尿性受体-C扰乱了白色脂肪组织中的线粒体呼吸

Shi-Jin Li¹, Jin-Qiu Wei², Yuan-Yuan Kang²

¹Department of Cardiovascular Medicine, Department of Hypertension, State Key Laboratory of Medical Genomics, Shanghai Key Laboratory of Hypertension, Shanghai Institute of Hypertension, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, China.

Journal of lipid research

|August 18, 2024

概括

性受体-C (NPR-C) 缺乏通过增强白脂肪组织线粒体功能和能量消耗来改善代谢健康. 这导致体重减轻,并抵抗高脂肪/高糖饮食导致的肥胖.

科学领域:

代谢研究的研究.
肥胖研究的研究.
脂肪组织生物学脂肪组织生物学

背景情况:

尿素受体-C (NPR-C) 与肥胖相关的疾病有关,但其确切作用尚不清楚.
在脂肪组织中,特别是白色脂肪组织 (WAT) 中,NPR-C的表达很高.

研究的目的:

调查NPR-C在对暴露于寒冷和高脂肪/高糖 (HF/HS) 饮食的代谢适应中的作用.
阐明NPR-C影响白脂肪组织 (WAT) 线粒体功能和能量消耗的机制.

主要方法:

利用了全球Npr3淘汰赛 (KO) 的小鼠和脂肪细胞中的Npr3淘汰赛.
在Npr3 KO小鼠的流行性WAT (eWAT) 上进行RNA测序.
研究的信号通路包括cGMP,,cAMP,AKT和p38.
服用NPR-C特异性抗剂AP-811,以评估其对WAT质量和基因表达的影响.

主要成果:

在暴露于寒冷后,NPR-C表达在WAT中下降.
缺乏Npr3会降低体重,增加WAT色和热生成,增强线粒体生物发生和氧化酸化.
由于Npr3缺乏,导致对HF/HS饮食诱导的肥胖产生抗性.
抑制NPR-C (通过淘汰或抗剂) 增加了PGC-1α,UCP1和线粒体呼吸链复合体表达,促进WAT色和能量消耗.

结论:

缺乏NPR-C会增强线粒体功能和WAT中的能量消耗.
减少的NPR-C信号促进了WAT棕色化和热生成.
准NPR-C可能为代谢疾病和肥胖症提供治疗策略.

关键词:

布朗宁是一个布朗宁.线粒体复合体是指线粒体复合体.利性受体C是一种利性受体.肥胖肥胖肥胖肥胖肥胖肥胖肥胖肥胖这是白色脂肪组织.

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