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钟:一种化学遗传多色标签系统,可视化神经元的出生日期和电路集成

Giulia Faini¹, Matthieu Tuffery¹, Amna Saleem²

¹Institut de la Vision, Sorbonne Univ., Inserm S968, CNRS UMR7210, Paris, France.

Research square

|July 17, 2025

概括

一种名为CHLOK的新方法根据出生日期对神经元进行标签,揭示了早出生和晚出生的神经元对发展大脑电路的贡献是不同的. 这种进步有助于理解大脑发育和可塑性.

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
分子生物学分子生物学

背景情况:

了解神经元的融合是大脑发育和可塑性的关键.
目前用于研究神经元集成的方法在吞吐量,分辨率和侵入性方面存在局限性.

研究的目的:

开发一种基于神经元出生日期标记的神经元的新,非侵入性方法.
为了使神经元集成和电路形成 in vivo 的高通量,时空解析的分析.

主要方法:

使用HaloTag技术和光染料开发了CHLOK (细胞史标记与优化化学)
启用了基于成熟阶段的神经元的多色标签.
集成的CHLOK与成像和光遗传学用于功能测试.

主要成果:

成功地绘制了斑马鱼视觉和运动系统发展中的出生日期解决的神经元活动.
揭示了早产儿与晚产儿神经元在电路发育中的不同功能作用.
证明了特定年龄的多色/电压成像和光遗传学操纵.

结论:

CHLOK 是一种强大,多功能,非侵入性的工具,用于研究神经集成和电路的 in vivo 发展.
提供了对电路形成的时间动态的新见解.
克服了研究大脑发育现有技术的关键局限性.

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