在棕色脂肪细胞中,FAM210A对冷诱导的线粒体重塑至关重要
Jiamin Qiu1, Feng Yue2,3, Peipei Zhu4
1Department of Animal Sciences, Purdue University, West Lafayette, IN, 47907, USA.
Nature communications
|October 10, 2023
概括
FAM210A是一种关键蛋白质,调节棕色脂肪组织 (BAT) 中的线粒体结构和功能. 它的缺失会损害冷诱导的线粒体重塑,导致低温和降低发热.
科学领域:
- 线粒体生物学 线粒体生物学
- 棕色脂肪组织生理学
- 细胞适应寒冷的情况.
背景情况:
- 暴露于寒冷会触发棕色脂肪组织 (BAT) 中的线粒体重塑,以产生热量.
- 在寒冷适应过程中,线粒体可塑性的分子调节者在很大程度上是未知的.
研究的目的:
- 为了在BAT中识别新型的线粒体重塑调节器,以应对寒冷.
- 阐明FAM210A控制线粒体可塑性的分子机制.
主要方法:
- 对抗寒冷的线粒体蛋白质组的比较.
- 生成和分析脂肪细胞特异的Fam210a淘汰赛小鼠模型 (构成性和可诱导).
- 生物化学测试用于研究蛋白质与蛋白质相互作用和酶活性.
主要成果:
- 确定FAM210A是一种可冷诱导的线粒体内膜蛋白.
- Fam210a淘汰赛破坏了线粒体晶状体结构和BAT热生成活性,导致低温.
- FAM210A与YME1L蛋白酶相互作用,在暴露在寒冷中调节OPA1裂变和晶状体重塑.
结论:
- FAM210A是棕色脂肪组织中线粒体晶体重塑的关键调节者.
- FAM210A通过与YME1L-OPA1轴的相互作用来调解冷诱导的线粒体可塑性.
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