相关实验视频
Updated: May 5, 2026

09:46
Analyzing Murine Schwann Cell Development Along Growing Axons
Published on: November 21, 2012
11.4K
神经:一种新的细胞表面糖蛋白,参与神经-神经相互作用
F G Rathjen1, J M Wolff, S Chang
1Max-Planck-Institut für Entwicklungsbiologie, Tübingen, Federal Republic of Germany.
Cell
|December 4, 1987
概括
研究人员发现了神经,一种新的细胞表面糖蛋白,对胚胎中神经元-神经元相互作用至关重要. 这种蛋白质在轴突外生长中起作用,与其他已知的神经关联糖蛋白不同.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
背景情况:
- 神经元与神经元之间的相互作用是神经网络形成的基础.
- 识别调解这些相互作用的细胞表面分子是理解神经发育的关键.
- 之前的研究已经确定了几种与神经元相关的葡萄糖蛋白,但全面的理解仍然不完整.
研究的目的:
- 识别和描述参与神经质-神经质相互作用的新型细胞表面糖蛋白.
- 调查这些分子在胚胎发育期间轴突外生长中的作用.
- 确定该新型分子与已知的神经关联糖蛋白的免疫关系.
主要方法:
- 单克隆抗体 (MAb) F6用于识别和分离从小大脑等离子体膜中的神经素.
- 免疫 afinity 染色体和多指纹分析被用来描述神经神经.
- 使用多克隆抗体对神经素的Fab片段进行了体外生物试验,以评估其在轴突外生长中的功能.
主要成果:
- 鉴定和鉴定了一种新的小细胞表面糖蛋白Neurofascin.
- 神经包括185,160,135-110和92kd的相关多.
- 神经素主要表达在胚胎小脑,脊髓和视网膜的纤维丰富区域.
- 对神经素的抗体抑制了视网膜和交感轴突的外生长 in vitro.
- 神经素在免疫学上与其他已知的神经关联表面甘氨酸蛋白不同.
结论:
- 神经素是一种新型的细胞表面糖蛋白,参与神经质-神经质相互作用.
- 神经素在胚胎发育期间调节轴突外生长方面发挥着重要作用.
- 神经素代表了一类与神经细胞相关的分子,对神经发育研究有潜在的影响.
相关概念视频
Fusion of Secretory Vesicles with the Plasma Membrane
15.9K
Proteins and neurotransmitters in secretory vesicles can be released from a cell upon vesicle docking, priming, and fusion with the plasma membrane. Vesicles are docked and primed in preparation for the quick exocytosis of their contents in response to a stimulus. The fusion process is mainly carried out by a SNAP Receptor or SNARE complex, consisting of synaptobrevin, syntaxin-1, and SNAP-25.
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
15.9K
Mechanism of Filopodia Formation
2.5K
Filopodia are thin, actin-rich cellular protrusions that play an important role in many fundamental cellular functions. They vary in their occurrence, length, and positioning in different cell types, suggesting their diverse roles.
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
Their main function is to guide migrating cells during normal tissue morphogenesis or cancer metastasis by recognizing and making initial contacts with the extracellular matrix. However, they can also act as stationary cell anchors or help to establish communication...
2.5K
Fibronectins Connect Cells with ECM
2.9K
Fibronectin is an adhesive glycoprotein present in the extracellular matrix of embryogenic and adult tissue. These molecules primarily aid in regulating cell motility and attachment. A fibronectin molecule is composed of two identical polypeptide chains attached to each other by a pair of disulfide bonds at the C-terminal.
Both proteoglycans and collagen are attached to fibronectin proteins, which, in turn, are attached to integrin proteins. These integrin proteins interact with transmembrane...
Both proteoglycans and collagen are attached to fibronectin proteins, which, in turn, are attached to integrin proteins. These integrin proteins interact with transmembrane...
2.9K

