肝脏特定的SLC13A3调制通过调节NAD代谢来缓解MASLD
Jiangxia Du1,2, Minhui Shen1, Yuan Mu1
1Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Zijingang Campus, Hangzhou, 310058, Zhejiang, China.
Molecular and cellular biochemistry
|February 14, 2026
概括
溶解物载体SLC13A3被确定为代谢功能障碍相关的脂肪性肝病 (MASLD) 进展的关键因素. 它的调节会影响肝脏脂肪积累和代谢功能障碍,这表明它是MASLD的潜在治疗点.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 分子生物学分子生物学
- 代谢疾病 代谢疾病
背景情况:
- 与代谢功能障碍相关的脂肪性肝病 (MASLD),以前称为NAFLD,是一种广泛的肝病,其原因复杂,治疗方法有限.
- 了解推动MASLD的分子机制对于开发有效疗法至关重要.
研究的目的:
- 调查溶解物载体SLC13A3在MASLD病变发生过程中的作用.
- 确定SLC13A3是否可以成为MASLD的潜在治疗点.
主要方法:
- 利用一种食高脂肪,高胆固醇和高果糖 (HFHCHF) 的小鼠模型来研究MASLD.
- 分析了肝脏SLC13A3表达水平,并在肝细胞中操纵其表达 (过度表达和淘汰).
- 进行了有针对性的代谢分析,以了解SLC13A3.3.所影响的分子通路.
主要成果:
- 在MASLD小鼠模型中,肝脏SLC13A3表达显著增加,与疾病严重程度相关.
- 肝脏特异性Slc13a3的过度表达加剧了肥胖症和代谢功能障碍,而Slc13a3的淘汰改善了这些情况.
- 发现SLC13A3可以调节肝脏的NAD+水平,影响主要的脂质代谢基因 (SREBF1,CD36,PPARγ,SCD1).
结论:
- 在调节MASLD进展方面,SLC13A3起着至关重要的,以前未知的作用.
- 向SLC13A3为管理MASLD提供了一个潜在的新型治疗策略.
相关概念视频
01:19Regulation of Metabolism
11.7K
Cellular needs and conditions vary from cell to cell and change within individual cells over time. For example, the required enzymes and energetic demands of stomach cells are different from those of fat storage cells, skin cells, blood cells, and nerve cells. Furthermore, a digestive cell works much harder to process and break down nutrients during the time that closely follows a meal compared with many hours after a meal. As these cellular demands and conditions vary, so do the amounts and...
11.7K
01:58Cell Specific Gene Expression
16.6K
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...
16.6K
02:58Regulated Protein Degradation
8.9K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
8.9K
00:52What is Metabolism?
132.7K
Overview
132.7K
01:33Hormonal Regulation
36.2K
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
36.2K
01:46Epigenetic Regulation
33.9K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
33.9K