在婴儿期感染寨卡病毒后,神经发育中断的机制
bioRxiv : the preprint server for biology
|February 9, 2026
概括
早期的寨卡病毒 (ZIKV) 感染会影响发育中的大脑,导致细胞死亡和改变基因表达. 这项研究揭示了ZIKVV.
科学领域:
- 神经科学是一个神经科学.
- 病毒学 病毒学
- 发展生物学 发展生物学
背景情况:
- 出生和早期的寨卡病毒 (ZIKV) 感染可能导致显著的神经系统缺陷.
- 由ZIKV引起的脑损伤的精确机制,特别是在微妙的产后感染中,需要进一步阐明.
研究的目的:
- 定义ZIKV对发育中的灵长类大脑的综合影响.
- 为了研究ZIKV对婴儿的细胞通路,大脑结构和行为的影响.
主要方法:
- 利用单细胞转录学,组织病理学,基于设计的立体学,扩散MRI和神经行为评估.
- 在ZIKV感染后,对婴儿 rhesus macaques 的脑组织和功能进行了检查.
主要成果:
- 齐克病毒感染对微质中的免疫反应基因和神经元中的细胞死亡途径进行了上调.
- 在成熟的寡细胞中,新陈代谢和分化基因被下调.
- 观察到异常的白质组织,ZIKV感染的神经元显示自闭症谱系障碍风险基因的丰富,与增加的情绪反应相关.
结论:
- 早期的ZIKV感染会扰乱大脑发育中的多个路径,从分子到行为层面.
- 研究结果强调ZIKV可能导致长期的神经发育和行为缺陷,包括自闭症谱系障碍类特征.
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