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鼠标大脑中脊柱突出的神经元的转录学分类

Carla C Winter^1,2,3,4,5, Anne Jacobi^6,7,8,9, Junfeng Su^1,2,3

¹F. M. Kirby Neurobiology Center, Boston Children's Hospital, Boston, MA, USA.

|December 13, 2023

概括

研究人员绘制了大脑65002个脊柱发射神经元 (SPN), 发现了76种不同类型的神经元按功能分类. 这本地图详细介绍了SPN如何通过点对点,广泛和调节信号通路来控制身体功能.

科学领域:

神经科学
分子生物学
系统神经科学

背景情况:

大脑通过脊柱发射神经元 (SPN) 调节身体功能.
目前对这些大脑范围内的SPNs缺乏全面的分子理解.
这些SPN对于将指令信号从大脑传递到脊髓至关重要.

研究的目的:

创建一个全面的分子分类大脑范围的SPN.
在小鼠大脑中识别和绘制特定区域的SPN类型.
阐明SPN在脑体通信中的组织原理和功能作用.

主要方法:

对65,002个SPN进行转录分析.
76个特定区域的SPN类型的识别和分类.
将SPN数据集成到整个小鼠大脑图谱中.

主要成果:

发现SPN的三组分组织:点对点激发,宽继电器和调节神经元.
确定一个LIM homeobox转录因子代码来定义网络脊髓神经元群.
特定的SPN转录特征与大 soma大小和快速发射电生理性质的相关性.

结论:

为大脑范围的SPN建立一个全面的分类.
对SPN的功能组织的新见解,
为未来研究控制运动和其他功能的神经回路提供基础资源.

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