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《科学》 2026年10月1日 · 中文解读

线粒体载体SLC25A34连接生物钟、饮食与温度对脂肪细胞脂质循环的调控

Mitochondrial carrier SLC25A34 links clock, diet, and temperature control of adipocyte lipid cycling · Iuliia Karavaeva et al.
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科学家发现,线粒体代谢物转运蛋白SLC25A34是整合生物钟、环境温度与饮食信号的关键节点。睡眠时REV-ERB抑制其表达,醒来、受冷或进食高脂餐后PPARα和PPARγ迅速激活它,从而维持产热脂肪细胞的脂质循环。该机制或为通过提高能量消耗治疗代谢疾病提供新靶点。
原文开头
INTRODUCTION: Brown and beige thermogenic adipocytes (fat cells) have uniquely high energy expenditure capacity. This activity is critical for defending body temperature in small mammals and is linked to cardiometabolic health in humans. Energy expenditure from thermogenic fat cycles daily on a rhythm set by the circadian clock, rising after waking and dropping during sleep. At any point, however, this activity can be suddenly induced by exposure to cold temperature or by ingestion of a calorie- dense, high- fat meal. How thermogenic fat can seamlessly achieve both rhythmic continuity and acute responsiveness is a fundamental question of energy homeostasis that has remained unknown. …
摘自《科学》(Science)2026年10月1日,Iuliia Karavaeva et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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