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外围CD4⁺ T细胞调解母亲分离对前额髓化和认知功能的破坏性影响

Rui Xiong¹, Yinyin Hu¹, Menghan Wang¹

¹Institute of Life Science and School of Life Science, Nanchang University, Nanchang 330031, China.

Proceedings of the National Academy of Sciences of the United States of America

|April 16, 2025

概括

早期生活压力 (母亲分居) 会影响大脑发育和认知. 这项研究揭示了外围CD4+T细胞通过影响前额叶皮层的髓化来驱动这些缺陷.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
发展心理学发展心理学

背景情况:

母亲分居 (MS) 是早期生活压力的一个模型,已知会导致认知缺陷.
多发性硬化损害前额叶皮层 (PFC) 髓化和功能的确切机制尚不清楚.

研究的目的:

调查外围CD4+T细胞在调解MS对PFC髓化和认知功能的影响中的作用.
阐明参与MS诱导认知功能障碍的信号通路.

主要方法:

在小鼠中的母体分离模型.
流细胞计量量化CD4+T细胞.
认知功能的行为测试 (工作记忆,社交互动,焦虑/抑郁).
针对寡头细胞前体细胞 (OPCs) 和寡头细胞 (OLs) 的免疫光染.
通过 CD4+ T 细胞向免疫缺陷小鼠的收养转移.

主要成果:

多发性硬化症小鼠表现出外围CD4+T细胞和桑水平的增加,以及依赖mPFC的认知功能受损和OPC/OLs的减少.
中和外围CD4+T细胞挽救了MS诱导的表型.
从MS小鼠转移CD4+T细胞到Rag1-/-小鼠复制的MS表型.
在接受者小鼠中观察到OPCs上腺素受体A1 (A1) 的表达减少.

结论:

周围的CD4+T细胞因果地将母亲分离与前额叶皮层低髓化和认知功能障碍联系起来.
这种机制可能涉及OPCs中的丁-氨酸受体A1信号传递.

关键词:

CD4+ T 细胞是 CD4+ T 细胞.认知功能认知功能母亲分居的情况.骨髓化骨髓化前额叶皮层前额叶皮层

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