神经热素-3在寡头细胞发育中的关键作用
B A Barres1, M C Raff, F Gaese
1Department of Biology, University College, London, UK.
Nature
|January 27, 1994
概括
神经营养素-3和血小板衍生的生生长因子对于寡干细胞的发育至关重要. 它们协作促进细胞增殖,并在体内和体外驱动寡类细胞成熟的时间.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
背景情况:
- 神经营养素如神经生长因子支持神经元的存活,但它们在质细胞发育中的作用尚不清楚.
- 神经营养素-3 (NT-3) 支持氧基细胞前体细胞 (OPC) 存活和DNA合成与血小板衍生生长因子 (PDGF) 结合.
研究的目的:
- 研究NT-3和PDGF在OPC增殖和寡细胞发育中的协作作用.
- 为了确定NT-3和PDGF是否在体外刺激OPCs的克隆扩张和内在时间.
- 评估NT-3在OPC增殖和寡细胞发育中的体内作用.
主要方法:
- 在体外研究中使用纯的寡聚类细胞前体细胞.
- 检测细胞增殖,DNA合成和克隆扩张.
- 在体内实验以评估OPC增殖和寡细胞发育.
主要成果:
- 在体外,NT-3和PDGF协同促进OPCs的克隆扩张.
- 这些因素驱动了寡头细胞发育的内在时间机制.
- 在体内,NT-3刺激了OPC的增殖,这表明它对于正常的寡细胞发育是必要的.
结论:
- 神经营养素-3和血小板衍生的生生长因子是奥利戈登德罗细胞前体细胞增殖和分化的重要协作因素.
- 在体内,NT-3发挥着至关重要的作用,调节寡细胞的发育,并确保适当的髓化.
- 这项研究阐明了控制质细胞发育的关键分子机制,这对影响髓的神经系统疾病有影响.
更多相关视频
11:11Preparation of Rat Oligodendrocyte Progenitor Cultures and Quantification of Oligodendrogenesis Using Dual-infrared Fluorescence Scanning
Published on: February 17, 2016
09:05Generation of Oligodendrocytes and Oligodendrocyte-Conditioned Medium for Co-Culture Experiments
Published on: February 9, 2020
相关概念视频
01:00Enzyme-linked Receptors
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
01:30Neurulation
Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...
01:25Nervous Tissue: Myelin
The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
01:15Neurogenesis 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...