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《科学》 第391卷 第6786期 · 2026年2月12日 · 中文解读

线粒体通过肉碱生物合成控制燃料转换

Mitochondrial control of fuel switching via carnitine biosynthesis · Unknown
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这篇讲什么
本文报道SLC25A45作为线粒体三甲基赖氨酸载体,调控肉碱生物合成和脂肪酸氧化,影响代谢适应及GLP-1受体激动剂疗效。
原文开头
Christopher Auger1, Hiroshi Nishida1†, Bo Yuan2†, Guilherme Martins Silva3†, Masanori Fujimoto1†, Mark Li1, Daisuke Katoh1, Dandan Wang1, Melia Granath-Panelo1, Jihoon Shin1, Rose Witte1, Jin-Seon Yook1, Anthony R. P. Verkerke1, 4, Alexander S. Banks5, Sheng Hui2, Lijun Sun3, Shingo Kajimura1* Environmental adaptation often involves a shift in energy utilization toward mitochondrial fatty acid oxidation, which requires carnitine. Besides dietary sources of animal origin, carnitine biosynthesis from trimethyllysine (TML) is essential, particularly for those who consume plant-based diets; however, its molecular regulation and physiological role remain elusive. Here, we identify SLC25A45 as a mitochondrial TML carrier that controls carnitine biosynthesis and fuel switching. SLC25A45 deficiency decreased the carnitine pool and impaired mitochondrial fatty acid oxidation, shifting reliance to carbohydrate metabolism. …
摘自《科学》(Science)第391卷 第6786期 · 2026年2月12日,Unknown。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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