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经转录定义的杏仁体亚群在先天的社会行为中起着不同的作用
Julieta E Lischinsky1, Luping Yin2, Chenxi Shi2,3
1Neuroscience Institute, New York University School of Medicine, New York, NY, USA. julieta.lischinsky@nyulangone.org.
Nature neuroscience
|November 9, 2023
概括
社交行为的神经回路,如侵略性,与雄性小鼠中枢杏仁体 (MeA) 中特定的细胞系有关. Foxp2+细胞驱动侵略性,而Dbx1+细胞参与其他社会线索.
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
- 行为科学 行为科学
背景情况:
- 社会行为是天生的,并依赖于神经回路,但它们的分子基础和发育起源尚未完全理解.
- 中枢桃体 (MeA) 对于处理社会信息和调节社会行为至关重要.
研究的目的:
- 研究介质杏仁体 (MeA) 内的不同发育系在男性小鼠塑造社会行为的不同作用.
- 确定MeA中不同细胞群的分子特征和功能意义.
主要方法:
- 利用遗传谱系追踪来区分两个胚胎定义的细胞种群在MeA.
- 研究了这些独特的MeA细胞群的反应模式和功能连接.
- 评估了这些细胞群体在男性社会行为中的作用,包括在射精期间的侵略和反应.
主要成果:
- 鉴定出两个不同的MeA细胞种群,起源于不同的胚胎系:MeAFoxp2和MeADbx1.
- MeAFoxp2细胞专门处理男性的社交线索,对于成年男性的攻击性至关重要.
- MeADbx1细胞广泛响应社会线索,在射精期间活跃,对于男性侵略性来说并不关键.
结论:
- 在MeA的社会行为电路是基于发育血统组织的,不同的胚胎起源决定了成年人的功能.
- 在MeA水平上存在着一个发育硬线的侵略电路,Foxp2+细胞发挥着关键作用.
- MeA细胞的胚胎转录因子概况决定了它们在社会信息处理和行为结果中的作用.
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