胆囊托基宁通过调节运动皮层中的神经可塑性来促进运动技能的学习

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Hao Li^1,2, Jingyu Feng¹, Mengying Chen¹

¹Departments of Neuroscience and Biomedical Sciences, City University of Hong Kong, Hong Kong, China.

|May 3, 2024

概括

胆囊托基宁 (CCK) 在运动学习中起着至关重要的作用. 虽然CCK缺乏会损害运动皮层中的运动技能和神经可塑性,但CCK激动剂可以恢复这些功能.

科学领域:

神经科学是一个神经科学.
神经生物学神经生物学神经生物学
发动机控制器的控制器

背景情况:

已知 cholecystokinin (CCK) 在感官和情绪处理中调节神经可塑性.
在运动学习中CCK的作用和潜在的神经机制在很大程度上仍未被探索.

研究的目的:

研究CCK在运动学习中的功能及其对运动皮层神经可塑性的影响.
阐明神经通路和机制,通过CCK影响运动技能的获得.

主要方法:

在小鼠中使用单颗颗粒达到任务,该小鼠具有胆囊托基因 (Cck) 基因或CCK-B受体 (CCKBR) 阻断的遗传淘汰.
在体内进行成像,运动皮质的高频刺激,解剖学追踪和CCK表达神经元的化学遗传操纵.
用CCK4作为CCK激动剂,以评估救援对运动学习缺陷的影响.

主要成果:

缺乏Cck或CCKBR阻塞的小鼠表现出运动学习障碍,无法提高奖励获取成功率.
CCK缺乏消除了运动皮质的长期增强,并在运动技能训练期间破坏了神经元活动的精细化.
确定了从鼻皮层CCK神经元到运动皮层的直接投射,它们的不活化会损害运动学习.
使用CCK4成功地挽救了Cck淘汰赛小鼠的运动学习缺陷.

结论:

CCK信号传递对于有效的运动学习和运动皮层神经可塑性至关重要.
CCK可能起源于鼻皮质,通过调节运动皮质中的神经可塑性来支持运动技能的获得.

关键词:

胆囊托基尼尼的胆囊托基尼.内皮层 (entorhinal cortex) 是一个内侧的皮层.运动皮层的运动皮层.运动技能的学习学习.这里是鼠标鼠标鼠标鼠标鼠标鼠标.神经科学神经科学一个单颗颗粒达到任务.

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