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前额叶皮层SST和PV内部神经元网络的发展动态:从子的洞察力突出人类特有的特征

Nafiseh S Hosseini Fin¹, Adrian Yip¹, Leon Teo¹

¹Australian Regenerative Medicine Institute, 15 Innovation Walk, Monash University, Clayton Vic., 3800, Australia.

bioRxiv : the preprint server for biology

|July 19, 2024

概括

灵长类动物大脑中的帕瓦尔胺内部神经元成熟持续到青春期,具有明显的离子通道表达. 与动物不同的是,体静止素内部神经元数量在产后减少,这为神经发育障碍提供了洞察力.

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
灵长类的认知能力

背景情况:

灵长类动物前额叶皮层 (PFC) 对于认知功能至关重要.
帕尔瓦胺 (PV) 和体静止素 (SST) 内神经元 (INs) 是皮质电路发育和功能的关键.
灵长类的IN发育,特别是迁移后的发育,比动物的理解要少.

研究的目的:

为了研究 PV 和 SST INs 的产后发育动态,在马尔莫塞特 PFC 中.
分析KCC2,Kv3.1b和Nav1.1的表达与IN成熟度相关.
将灵长类的IN发育与动物模型进行比较,并了解神经发育障碍的影响.

主要方法:

检查了PV和SST表达模式在产后的马尔莫塞特前皮层区域.
对离子载体KCC2和离子通道Kv3.1b,Nav1.1.1.的评估表达.
与形态生理学发育阶段相关的分子标记.

主要成果:

PV+IN成熟期延伸到青春期,以特定的离子通道表达动态为标志.
观察到SST内部神经元的产后减少,与动物研究不同.
在灵长类PFC中确定了PV和SST IN的独特发展轨迹.

结论:

灵长类PFC IN的发育,特别是PV+IN的成熟,是一个漫长的过程.
观察到的SST INs的减少凸显了特定物种的发育差异.
研究结果提供了有关与IN功能障碍相关的神经发育障碍的见解.

关键词:

背侧侧前额皮质前额皮质离子通道离子通道成熟成熟成熟成熟.神经发育障碍神经发育障碍灵长类的灵长类动物.

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