单细胞多原子分析突出了NKX2.2-CLEC16A/内体通路在人类胰腺分化和功能中的重要作用
Guo Chen1, Xiaojie Ma1, Liling Jiang1
1Life Sciences Institute, The Second Affiliated Hospital and School of Medicine, The MOE Key Laboratory of Biosystems Homeostasis and Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, Zhejiang University, Hangzhou 310058, Zhejiang, China.
Cell reports
|February 14, 2026
概括
研究人员特征了一种可扩展的胰腺原始体 (ePP) 系统,揭示了控制细胞命运和小岛功能的基因网络. 他们还开发了1型糖尿病的干细胞模型,确定了潜在的治疗点.
科学领域:
- 发育生物学 发展生物学
- 干细胞生物学 干细胞生物学
- 内分泌学 在内分泌学.
背景情况:
- 了解干细胞分化对于再生医学至关重要.
- 可扩展的胰腺前体 (ePP) 平台为研究胰腺发育提供了潜力.
- 需要对ePP系统进行详细的描述,以了解它们的功能.
研究的目的:
- 执行可扩展胰腺原生岛屿 (ePP岛屿) 系统的系统级表征.
- 在胰腺分化过程中定义转录和染色体景观.
- 推断基因调节网络控制ePP自我更新,内分泌细胞命运和小岛功能.
主要方法:
- 转录和染色体景观的系统级分析.
- 基因调节网络的推理.
- 通过CRISPR-Cas9基因编辑 (例如CLEC16A淘汰赛) 开发人类干细胞模型.
主要成果:
- 定义了胰腺分化的动态和协调的转录和染色体景观.
- 推断基因调节网络控制ePP自我更新,内分泌细胞命运分支和小岛功能.
- 确定了NKX2.2-CLEC16A/内体通路轴为重要的.
- 开发了一种基于人类干细胞的模型,表现出与1型糖尿病相关的自身免疫性特征.
- 鉴定了CLEC16A缺乏症的药理救援剂.
结论:
- ePP小岛系统是一个强大的平台,用于揭示细胞命运决定的分子机制.
- 该研究提供了对基因调节网络的洞察,这些基因调节网络控制了胰腺发育和功能.
- 开发的1型糖尿病模型和确定的治疗点对未来的应用有希望.
相关概念视频
Compounds Essential to Human Function
10.6K
The human body is composed of cells that are fundamentally made up of several different molecules. These molecules are essential to carry out all physiological processes in the body and are broadly classified into organic and inorganic based on their chemical structures.
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
Inorganic Compounds Essential to Human Functioning
Inorganic compounds essential to human functioning include water, salts, acids, and bases. These compounds are inorganic, i.e., they do not have a carbon-hydrogen bond. Water...
10.6K
Role of ER in the Secretory Pathway
7.3K
Eukaryotic cells have a special pathway that enables communication between various intracellular membrane-bound compartments and also with the extracellular environment. This pathway is termed as the secretory pathway.
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
Components of the secretory pathway
About a third of proteins synthesized in the cell are sorted via the secretory route. They shuffle between different compartments in membrane-bound vesicles until they reach their final destination. The main intracellular compartments involved...
7.3K
Maturation of Endosomes
6.0K
The early endosome containing internalized molecules matures through transformations in its location, morphology, intraluminal pH, and membrane protein composition. Together, these changes result in a more acidic late endosome that contains multiple intraluminal vesicles; therefore, the late endosome is also called a multivesicular body (MVB).
Changes in location
The maturing endosome moves along microtubules from the periphery of the cell towards the perinuclear region. This movement of the...
Changes in location
The maturing endosome moves along microtubules from the periphery of the cell towards the perinuclear region. This movement of the...
6.0K
Role of Proteins in the Human Body
6.8K
Proteins are the building block of life. They are also the most abundant macromolecules with as many diverse roles in the body. They are part of many structural components that provide unique shapes and structures to animal cells, tissues, and organs. In addition, they also act as biological catalysts and carry out several anabolic and catabolic reactions. Notably, some proteins are chemical messengers and regulate many critical processes, such as metabolism, growth, and development. They...
6.8K
Role of Water in Human Biology
14.4K
Water is the one of the most significant components of the human body; it plays a crucial role in several physiological activities because of its unique physicochemical properties. Importantly, it helps to regulate body temperature and is the chief component of several body fluids.
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
Water's Solvent Properties
Since water is a polar molecule with slightly positive and slightly negative charges, ions and polar molecules can readily dissolve in it. Therefore, it is referred to as a solvent, a...
14.4K
The Early Endosome: Endocytosis of Transferrin
4.9K
Essential proteins such as insulin or low-density lipoprotein (LDL) and micronutrients such as iron enter a eukaryotic cell through receptor-mediated endocytosis. Subsequently, the early endosomes fuse with the vesicles containing such receptor-ligand complexes and play a vital role in sorting the incoming ligands and receptors. While the ligands are either degraded inside the vesicle or released into the cytosol, their receptors are returned to the plasma membrane for further rounds of...
4.9K


