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通过依赖于UPR的AMPK相关酶NUAK2进行增强的SARS-CoV-2进入
Vibhu Prasad1, Berati Cerikan1, Yannick Stahl1
1Heidelberg University, Medical Faculty Heidelberg, Department of Infectious Diseases, Molecular Virology, Center for Integrative Infectious Disease Research, Heidelberg, Germany.
Molecular cell
|July 8, 2023
概括
严重急性呼吸道综合征冠状病毒-2 (SARS-CoV-2) 感染激活了IRE1α-XBP1通路,揭示了NUAK2作为关键宿主因素. NUAK2对于病毒进入和通过调节细胞表面病毒受体传播至关重要.
科学领域:
- 病毒学 病毒学
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 严重急性呼吸道综合征冠状病毒-2 (SARS-CoV-2) 感染诱导了内质网膜 (ER) 应激和未折叠蛋白质反应 (UPR).
- 在SARS-CoV-2感染中UPR通路的特定作用尚未完全理解.
研究的目的:
- 在SARS-CoV-2感染期间调查UPR通路的功能.
- 确定由IRE1α-XBP1通路调节的宿主因素,这些因素对病毒复制和传播至关重要.
主要方法:
- 在SARS-CoV-2感染细胞中分析IRE1α酸化和XBP1剪接.
- 作为宿主依赖因子的NUAK2的识别和功能性特征.
- 在NUAK2.2的调制下评估病毒进入,粒子结合和内部化.
主要成果:
- SARS-CoV-2 感染导致边缘 IRE1α 激活,其特点是酸化,ER 膜重组和 XBP1 拼接.
- 压力激活激酶NUAK2被确定为一种新型宿主依赖因子,该因子是SARS-CoV-2,HCoV-229E和MERS-CoV.进入所需的.
- 降低NUAK2水平或活性会通过降低病毒受体表达和影响actin细胞骨介导的贩运来损害SARS-CoV-2的结合和内化.
- 在受感染和旁观细胞中NUAK2的IRE1α依赖的升高通过维持ACE2水平和促进病毒附着促进了病毒传播.
结论:
- IRE1α-XBP1通路通过调节NUAK2.2在SARS-CoV-2感染中发挥作用.
- NUAK2是病毒进入和冠状病毒细胞传播的关键宿主因子,包括SARS-CoV-2.
- 准NUAK2可能代表对抗SARS-CoV-2和其他冠状病毒感染的治疗策略.
关键词:
在ACE2中,ACE2是ACE2.这就是Clem Clem.一个超结构的 IRE1a.这就是SARS-CoV-2病毒.这就是TMPRSS2的原因.冠状病毒冠状病毒病毒膜动力学 膜动力学走私和贩运的人口贩运不折叠的蛋白质反应反应病毒进入病毒的入口更多相关视频
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