神经细胞与感官神经元血统的结合
1Department of Anatomy and Cellular Biology, Medical College of Wisconsin, Milwaukee 53226.
概括
甲神经细胞显示了感官神经细胞的双重起源. 多能细胞很早就迁移,分化为感官,自主神经元,后来变成黑色细胞.
科学领域:
- 发育生物学是发展生物学.
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 神经细胞是多能细胞,可以产生多种细胞类型.
- 了解神经细胞分化对于发育过程至关重要.
研究的目的:
- 为了研究白神经细胞对感觉神经元通路的起源和承诺.
- 分析涉及感官神经发生的不同细胞群.
主要方法:
- 使用了长神经细胞的克隆培养.
- 使用针对特定阶段胚胎抗原-1 (SSEA-1) 的单克隆抗体.
主要成果:
- 鉴定出两种不同的感觉细胞群体在质生成过程中.
- 观察到神经管附近的转移后神经芽细胞和多能迁移细胞.
- 多能细胞分化为感官和自主神经细胞和黑色素细胞.
结论:
- 这表明脊柱感官神经细胞的双重起源.
- 表明自主和感官谱系之间的分歧主要是晚期的.
相关概念视频
Neurulation
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...
Determination
During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...
Lineage Commitment
Commitment is the process whereby stem cells:


