相关实验视频

Updated: Sep 9, 2025

Preparation of Rat Oligodendrocyte Progenitor Cultures and Quantification of Oligodendrogenesis Using Dual-infrared Fluorescence Scanning

Preparation of Rat Oligodendrocyte Progenitor Cultures and Quantification of Oligodendrogenesis Using Dual-infrared Fluorescence Scanning

Published on: February 17, 2016

Pen-2 通过协调 oligodendrocyte 前体细胞的自我更新和转化分化程序来调节质平衡

Huiru Bi¹, Jinxing Hou², Wenkai Shao³

¹Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Medical School, Nanjing University, Nanjing 210008, China; Nanjing Normal University of Special Education, Nanjing 210038, China.

Stem cell reports

|August 29, 2025

概括

通过HES1- ASCL1通路调节OPC前体细胞的自我更新,并通过STAT3信号抑制OPC转化为星体细胞,保持质稳定. 这表明Pen-2在神经疾病中的双重作用.

科学领域:

神经科学
细胞生物学
遗传学

背景情况:

素增强剂2 (Pen-2) 与涉及质细胞功能障碍的神经系统疾病有关.
在质细胞群维护中,质细胞 gamma- secretase 的作用尚不完全理解.

研究的目的:

研究Pen-2和尼卡斯在质平衡中的作用.
为了确定STAT3是否调节Pen-2依赖的质细胞调节.
阐明Pen-2在质细胞中的作用的分子机制.

主要方法:

分析了缺乏Pen-2或尼卡斯特林的条件淘汰 (cKO) 鼠标模型.
在Pen-2 cKO小鼠中禁用STAT3以评估其作用.
进行了基因表达分析 (HES1,ASCL1) 和淘汰实验.

主要成果:

-2和尼卡斯特林缺乏导致寡细胞前体细胞 (OPC) 和星球细胞的扩张.
在Pen-2 cKO小鼠中,STAT3缺乏正常化了星球细胞数量,但没有OPC扩张.
发现Pen-2通过HES1抑制了Ascl1的表达,而Ascl1的倒置挽救了异常的OPC自我更新.

结论:

通过一种双重的机制,Pen- 2 维持细胞质稳定:通过 HES1- ASCL1 轴抑制 OPC 自新,并以 STAT3 相关的方式抑制 OPC 转化为星细胞.
这些发现为Pen-2相关的神经疾病中的质异常提供了新的见解.

关键词:

在 ASCL 自行续签的OPC 一个笔-2 其他国家 γ-分泌酶

更多相关视频

Derivation of Glial Restricted Precursors from E13 mice

Derivation of Glial Restricted Precursors from E13 mice

Published on: June 20, 2012

Differentiation of Embryonic Stem Cells into Oligodendrocyte Precursors

Differentiation of Embryonic Stem Cells into Oligodendrocyte Precursors

Published on: May 19, 2010

相关概念视频

Glial Cells

Glial Cells

Neurogenesis and Regeneration of Nervous Tissue

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...

Nervous Tissue: Glial Cells

Nervous Tissue: Glial Cells

Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...