脂原性棕色脂肪细胞的一个亚群驱动热原性记忆
Patrick Lundgren1,2,3, Prateek V Sharma1,2,3,4,5,6, Lenka Dohnalová1,2,3
1Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Nature metabolism
|October 2, 2023
概括
短暂的寒冷暴露会诱导持久的棕色脂肪适应,增强热能记忆力. 这种脂质生物合成程序改善了对寒冷的反应,提供了潜在的肥胖治疗方法.
科学领域:
- 代谢调节 代谢调节 代谢调节
- 脂肪细胞生物学 脂肪细胞生物学
- 环境适应环境适应
背景情况:
- 长期适应临时环境变化对生存至关重要,但尚未完全理解.
- 棕色脂肪组织 (BAT) 在热生成和代谢适应中发挥着关键作用.
研究的目的:
- 为了研究经过短暂的寒冷暴露后棕色脂肪组织持续适应的机制.
- 了解这些适应如何改善对随后的寒冷挑战的热生成反应.
主要方法:
- 单核RNA测序的一个核.
- 空间转录组学 空间转录组学
- 代谢检测测试 代谢测试
- 乙卡尼丁补充剂的补充
主要成果:
- 短暂的寒冷暴露会在特定的棕色脂肪细胞亚群中触发延迟的脂质生物合成程序.
- 这个程序增强了对二次寒冷暴露的热能反应,证明了"热能记忆".
- 乙卡尼丁的产生与这种记忆有关,补充剂可以模仿改善的反应.
结论:
- 不同质的棕色脂肪细胞群体有助于热生成记忆.
- 在寒冷压力后的BAT中持续的代谢适应可以改善未来的热生成.
- 这些发现表明,通过操纵短期热生成,对肥胖有潜在的治疗策略.
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