胚胎活跃的皮质神经元在发育过程中促进皮质内循环连接
David C Wang1, Fernando Santos-Valencia2, Jun H Song3
1Howard Hughes Medical Institute and Department of Biology, Stanford University, Stanford, CA 94305, USA; Stanford MSTP, Stanford, CA 94305, USA.
Neuron
|July 4, 2024
概括
早期的神经元活动塑造了大脑电路. 在小鼠中,通过活跃种群的有针对性重组 (TRAP) 识别的活跃的皮质皮质神经元在发育过程中促进突触连接.
科学领域:
- 神经科学是一个神经科学.
- 发育神经科学的发展神经科学.
- 系统神经科学 系统神经科学
背景情况:
- 神经元活动对于大脑电路的成熟至关重要.
- 早期活动在调节大脑电路发育中的作用尚未完全被理解.
研究的目的:
- 在小鼠的活跃群体中使用有针对性的重组 (TRAP) 进行产前神经元活动的全脑调查.
- 研究已识别的活跃神经元在电路成熟中的作用.
主要方法:
- 在活跃人群中利用有针对性的重组 (TRAP) 来识别整个大脑的产前活动.
- 在新生儿切片和体内Neuropixels记录中进行了全细胞记录.
- 在新生儿中识别的神经元的操纵活动.
主要成果:
- 确定皮质皮质作为一个充满产前活动的区域 (TRAPed神经元).
- 胚胎 TRAP 皮形神经元表现出优越的相互连接性和增强的突触连接性.
- 这些神经元导致了自发的同步人口活动,它们的操纵影响了反复发生的突触强度.
结论:
- 胚胎 TRAP 型神经元形成一个相互连接的枢纽.
- 这些piriform神经元的活动在早期发育过程中促进反复连接.
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