相关实验视频
Updated: May 10, 2025
10:06
Cell Type-specific Gene Expression Profiling in the Mouse Liver
Published on: September 17, 2019
7.5K
在人类肝脏发育过程中全面的circRNA表达特征和枢纽基因查
Si Ying Li1, Shu Ting Liu1, Chen Yi Wang1
1Department of Pediatric Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China.
Annals of medicine
|April 26, 2025
概括
这项研究揭示了循环RNA (circRNA) 在人类肝脏发育中的作用,确定了参与胚胎器官发育和潜在成人肝脏疾病的关键基因和途径.
科学领域:
- 基因组学就是基因组学.
- 发展生物学 发展生物学
- 在RNA生物学,RNA生物学.
背景情况:
- 非编码RNAs,特别是循环RNAs (circRNAs),越来越多地被认为是它们在细胞过程中的角色.
- 在人类肝脏发育过程中理解circRNA表达对于洞察肝脏疾病至关重要.
研究的目的:
- 研究circRNAs在人类肝脏发育中的作用和调节网络.
- 确定关键的circRNA和参与胚胎肝脏形成的基因.
主要方法:
- 在不同发育阶段对人类胎儿肝脏样本进行高通量测序和生物信息学分析.
- 不同表达分析,基因本体学 (GO),基因和基因组的京都百科全书 (KEGG) 和疾病本体学 (DO) 丰富分析.
- 构建共表达和蛋白质与蛋白质相互作用 (PPI) 网络,然后使用定量逆转录聚合酶链反应 (qRT-PCR) 进行验证.
主要成果:
- 鉴定了645个差异表达的circRNA和5145个差异表达的mRNA.
- 在肝细胞发育阶段,circRNA活性显著增加,参与神经系统调节,胚胎器官发育和消化系统发育.
- 涉及的关键途径包括PI3K-AKT,MAPK和信号传递;三种枢纽基因 (LGR5,FOXL1,RSPO3) 被确定为可能对肝脏发育至关重要.
结论:
- 这项研究为人类肝脏发育中的circRNA作用提供了第一个全面的见解.
- 建立了circRNA调节网络并确定了关键基因,为未来研究肝脏发育和疾病中的分子和信号网络奠定了基础.
相关概念视频
01:58Cell Specific Gene Expression
13.3K
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...
13.3K
01:24Liver Regeneration
3.2K
The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are...
3.2K