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CD8阳性T细胞减少神经发生并诱导B型肝炎疫苗接种后的焦虑类行为

Tuo Zhou¹, Yuxuan Gao², Zhiling Wang³

¹Children's Health Section, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China.

Brain communications

|October 10, 2024

概括

乙型肝炎疫苗对大脑功能产生影响,增加焦虑,并通过CD8+ T细胞减少神经发生. 质细胞招募这些T细胞,影响情绪和记忆.

科学领域:

神经免疫学神经免疫学
神经科学是一个神经科学.
免疫学免疫学免疫学

背景情况:

周围免疫系统影响大脑功能,包括神经元发育和认知.
以前的研究将乙型肝炎疫苗接种与海马神经发生和空间记忆的减少联系起来.
了解疫苗诱导免疫对神经精神疾病的影响至关重要.

研究的目的:

研究T细胞子集调节海马神经发生和B型肝炎疫苗接种后焦虑类行为的机制.
确定关键的T细胞子集和涉及的分子通路.

主要方法:

在免疫缺陷小鼠中利用乙型肝炎疫苗诱导的T细胞.
管理T细胞并分析行为变化 (焦虑类行为).
评估海马细胞增殖,并对CD8+ T细胞进行了转录组分析.

主要成果:

接种乙型肝炎疫苗的T细胞接受者表现出增加的焦虑和降低海马细胞增殖.
CD8+ T 细胞,而不是CD4+ T 细胞,是这些效应的主要媒介.
CXCR6+ CD8+ T细胞通过CXCL16从质细胞透到大脑中,损害神经发生,并通过TNF-α诱导焦虑.

结论:

在B型肝炎疫苗接种后,质CXCL16调解了CXCR6+ CD8+ T细胞在大脑中招募的过程.
这种机制将疫苗接种与神经发生变化和类似焦虑的行为联系起来.
准这种途径可能为情绪和认知调节提供治疗策略.

关键词:

在CXCL16中,CXCL16是CXCL16的代名词.在CXCR6中,CXCR6是CXCR6.这就是TNF-α.乙型肝炎疫苗B型肝炎疫苗神经发生神经发生.

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