感官输入神经元的thalamic活动依赖的规范在发育中的小的entopallium中
Ryoka Katayama1,2,3, Takuma Kumamoto3, Kyosuke Wada3,4
1Department of Biology, Faculty of Education and Integrated Arts and Sciences, Waseda University, Tokyo, Japan.
The Journal of comparative neurology
|May 30, 2024
概括
体输入活动对于在发育中的小中指定感官输入神经元至关重要. 这种活动调节这些神经元中的电压通道子家族H成员5 (KCNH5/EAG2) 表达.
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:
- 神经元分化涉及细胞内在和细胞外在的因素,但对非哺乳动物物种的机制知之甚少.
- 小的体从旋转细胞核 (nucleus rotundus) 接收视觉输入,通过体流体通道.
研究的目的:
- 为了研究感官输入神经元在小中分化的机制.
- 阐明体输入活动在这个过程中的作用.
主要方法:
- 在发育过程中对电压通道子家族H成员5 (KCNH5/EAG2) mRNA和蛋白质表达的分析.
- 追踪体输入神经元的起源和分布.
- 通过thalamic输入来研究EAG2表达的调节.
主要成果:
- KCNH5/EAG2 mRNA的表达始于胚胎第11天,蛋白质的表达始于胚胎第20天.
- 输入神经元来自侧面和腹部,呈现出明显的 rostro-caudal 分布.
- 体输入活动直接调节这些神经元中的EAG2表达.
结论:
- 体输入活动对于在发育中的小体中指定感官输入神经元至关重要.
- 这种活动在从侧面和腹部骨中衍生出来的神经元的分化中起着关键作用.
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