在两动物发育过程中,内部和内部的通信
1Department of Biology, Faculty of Science, Kumomoto University, Kumamoto, 860, Japan.
Development, growth & differentiation
|June 7, 2023
概括
新胚胎细胞之间的电合在发育过程中发生显著的变化. 虽然大多数细胞仍然结合在一起,但心弦状和神经外皮细胞显示电通讯减少或丧失,影响组织分化和神经能力.
科学领域:
- 发育生物学是发展生物学.
- 细胞电生理学 细胞电生理学
- 胚胎发生是胚胎发生.
背景情况:
- 通过间隙连接进行电气通信对于胚胎发育至关重要.
- 了解细胞合中的特定组织变化,可以了解形态遗传过程.
研究的目的:
- 研究新胚胎 (Cynops pyrrhogaster) 中各种组织之间的电合的发育动态.
- 为了将细胞合的变化与关键的胚胎事件如胃化和神经管闭合相关联.
主要方法:
- 在新胚胎中测量不同电极间距离的电电位.
- 在特定发育阶段,分析不同组织类型内和不同组织类型之间的细胞之间的电合.
主要成果:
- 同一个组织中的细胞通常从胃化通过神经管闭合相结合.
- 在22-23阶段,细胞结合减少;在22-23阶段,神经皮质-皮质-半皮质结合减少并消失.
- 在分化过程中,chorda-mesoderm和somitic mesoderm之间的组织间合减少,而somite-神经管/表皮的合仍然很低.
- 神经板细胞在22-23阶段与表皮脱离,尽管连接率持续较低.
结论:
- 电气合的发育变化反映了胃化和神经化过程中的细胞运动和分化过程.
- 电气合的动态调节对于建立组织边界和影响神经能力至关重要.
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