寨卡病毒感染在人类发育中的大脑组织中的人类神经细胞地图:病毒病变,先天免疫力和谱系重编程
Caleb Stokes1,2,3, Leanne S Whitmore3, Dante Moreno3
1Department of Pediatrics, University of Washington, Seattle WA.
bioRxiv : the preprint server for biology
|October 10, 2024
概括
寨卡病毒 (ZIKV) 感染会影响胎儿的大脑发育,导致先天性寨卡综合征 (CZS). 星球细胞检测到ZIKV,而神经原始细胞复制它,导致神经元功能障碍和细胞死亡.
科学领域:
- 神经科学是一个神经科学.
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
背景情况:
- 在怀孕期间感染寨卡病毒 (ZIKV) 会导致先天性寨卡综合征 (CZS),其特征是胎儿大脑异常.
- 了解ZIKV诱导的神经发育异常的分子机制对于治疗策略至关重要.
研究的目的:
- 使用人类胎儿大脑细胞模型阐明CZS的分子基础.
- 在单细胞分辨率下研究ZIKV对神经发育和先天免疫力的影响.
主要方法:
- 利用初级胎儿大脑扩展剂和诱导多能干细胞衍生的神经培养.
- 进行ZIKV感染和神经发育过程的单细胞分辨率分析.
主要成果:
- 星球细胞被确定为检测ZIKV并产生干扰素-β (IFN-β) 的关键先天免疫细胞.
- 神经原生细胞显示出缺陷的先天免疫力,支持高病毒复制.
- 齐克病毒感染扰乱了神经元分化,抑制了突触信号传递,并将神经生成转移到天体生成.
- 确定了一种由IFN-β调节的ZIKV诱导的细胞应激反应,涉及亡.
结论:
- 寨卡病毒感染通过改变细胞功能和先天免疫反应,对人类胎儿大脑发育产生深远影响.
- 由ZIKV驱动的细胞压力,先天性免疫 (IFN-β) 和神经发生障碍之间的相互作用有助于CZS的发病.
- 这些发现突出了ZIKV在神经元发育功能障碍和细胞亡中发挥的作用,这对于理解CZS结果至关重要.
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