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HIF转录网络在神经元中具有先天的抗病毒活性,并限制大脑炎症
Ensieh Farahani1, Line S Reinert2, Ryo Narita2
1Department of Biomedicine, Aarhus University, Aarhus, Denmark.
Cell reports
|February 16, 2024
概括
缺氧诱导因子 (HIF) 网络通过激活自控制简单疹病毒 (HSV) 复制. 这一途径对于神经元和上皮细胞中早期宿主防御HSV感染至关重要.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 模式识别受体 (PRRs) 调解宿主防御,但可能导致过度炎症.
- 除了PRR之外,其他早期宿主防御机制的作用尚未完全理解.
研究的目的:
- 调查缺氧诱导因子 (HIF) 转录网络在早期宿主防御对简单疹病毒 (HSV) 感染的参与.
- 阐明HIF影响病毒复制和宿主免疫反应的机制.
主要方法:
- 对HSV感染细胞的转录组分析,以确定中断的转录网络.
- 在体内研究使用具有神经元特异性HIF1/2α缺乏症的小鼠.
- 在体外研究中使用人类干细胞衍生的神经元和微细胞培养物.
主要成果:
- 感染HSV会破坏神经元和上皮细胞中的HIF转录网络.
- HIF激活显示出抗病毒活性,通过自诱导控制HSV复制.
- 缺乏神经元特异性HIF1/2α的小鼠在感染HSV-2后显示病毒载量增加和中枢神经系统炎症反应加剧.
- 在人类中枢神经系统细胞中,HIF表现出抗病毒和抑制炎症的作用.
结论:
- HIF转录因子系统作为病毒诱导的低氧应激的传感器.
- HIF激活会诱导细胞内在的抗病毒反应,并限制HSV感染期间的炎症.
- 通过控制病毒复制和调节免疫反应,HIF在早期对HSV的宿主防御中发挥着关键作用.
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