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核中Mitofusin-2 accumbens D2-MSNs调节社会主导地位和神经元功能

Sriparna Ghosal¹, Elias Gebara¹, Eva Ramos-Fernández¹

¹Laboratory of Behavioral Genetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.

|July 13, 2023

概括

核中Mitofusin 2 (Mfn2) 调节社会行为. 特定神经元的Mfn2降低增加了焦虑和社会服从,突出了细胞类型的特定作用.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
行为遗传学行为遗传学

背景情况:

核心聚集体 (NAc) 对于积极的行为至关重要,包括社会竞争力.
在NAc中的线粒体功能连接焦虑和社会行为.
线粒体融合蛋白Mitofusin 2 (Mfn2) 影响NAc神经元中的与焦虑相关的行为.

研究的目的:

调查Mfn2在社会行为中的作用.
确定Mfn2是否通过NAc中的不同细胞类型影响社会行为和焦虑.

主要方法:

利用老鼠和小鼠模型来研究社会行为和焦虑.
在NAc多巴胺D1和D2受体表达中等脊状神经元 (D1-MSNs和D2-MSNs) 中选择性地操纵Mfn2水平.
在相关的NAc细胞群中评估线粒体功能和神经元刺激性.

主要成果:

附属,高度焦虑的老鼠表现出降低的NAc Mfn2水平.
在NAc中Mfn2过度表达促进了主导行为.
在NAc D2-MSN中选择性Mfn2下调导致社会服从,线粒体功能下降,D2-MSN刺激性降低.
在D1-MSN中Mfn2的下调暂时影响了竞争力,可能是由于焦虑增加.

结论:

在NAc中的Mfn2在调节社会主导地位方面发挥着至关重要的作用.
不同的NAc细胞类型 (D1-MSNs与D2-MSNs) 调解Mfn2对社会行为和焦虑的影响的特定方面.
在NAc D2-MSN中Mfn2的功能对于维持社会层次和正常的线粒体功能至关重要.

关键词:

科普:神经科学是什么意思焦虑是一种焦虑.中等的刺状神经元.线粒体中的线粒体.线粒体素 2 2 的使用.动机激励动机它的核心是accumbens的核心.社会竞争社会竞争在社会竞争中社会的统治地位.试管测试试管测试试管测试试管测试

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