棕色脂肪细胞激活通过外体tRNA衍生碎片调解脂质代谢
Zhou Peng1, Jingyang Cai2, Xirong Guo1
1Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Biochemical and biophysical research communications
|June 23, 2023
概括
这项研究确定了外部体中特定的tRNA衍生碎片 (tRFs),这些碎片调节脂解. 发现三种上调的tRF降低了UCHL1,为肥胖提供了潜在的治疗点.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 人类肥胖症涉及脂肪细胞脂解和子宫外脂质积累受损.
- 小调节性RNA,包括tRNA衍生碎片 (tRF) 和tRNA半个 (tiRNA),在脂质代谢中至关重要,并且存在于外体内.
研究的目的:
- 为了确定参与调节棕色脂肪细胞脂解的特定外体tRFs.
- 探索这些tRFs作为治疗标或肥胖的诊断生物标记物的潜力.
主要方法:
- 棕色脂肪细胞被福斯科林刺激以诱导脂解.
- 使用tRFs测序分析了外体tRFs.
- 使用定量逆转录PCR (qRT-PCR) 来验证特定的tRFs.
主要成果:
- 总共有207种不同的外体tRF被确定.
- 福斯科林治疗导致145个下调和62个上调的tRFs.
- 三个特定的上调的tRF (tRF-Gly-GCC-007,tRF-Gly-GCC-008和tRF-Gly-GCC-009) 得到了验证.
- 发现这些tRFs降低了UCHL1的表达,影响了蛋白质酸化和细胞粘附.
结论:
- 该研究确定了关键的外体tRFs,这些tRFs在调节脂解中发挥作用.
- 通过特定的tRFs降低UCHL1的调节表明参与脂解的机制.
- 这些发现突出了潜在的治疗目标和肥胖的诊断生物标志物.
关键词:
棕色脂肪细胞 棕色脂肪细胞外基因组是外基因组的组成部分.福斯科林 (ForsKolin) 是一种类型的 Forskolin.脂质溶解 脂质溶解是一种肥胖问题 肥胖问题转移RNA片段可以转移RNA片段.更多相关视频
02:55Author Spotlight: Illuminating New Avenues for Adipose Tissue Metabolism and Disease Prevention
Published on: October 6, 2023
1.5K
04:46Differentiation and Imaging of Brown Adipocytes from the Stromal Vascular Fraction of Interscapular Adipose Tissue from Newborn Mice
Published on: February 3, 2023
1.5K
相关概念视频
01:24Overview of Lipid Metabolism
1.8K
Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
1.8K
01:58Cell Specific Gene Expression
13.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.6K