STING在病毒诱导的复制器官中编排了EV-D68的复制和免疫代谢
Kathy Triantafilou1, Barbara Szomolay1, Mark William Shepherd1
1Division of Infection and Immunity, School of Medicine, University Hospital of Wales, Cardiff University, Heath Park, Cardiff CF14 4XN, UK.
Viruses
|October 26, 2024
概括
干扰素基因刺激器 (STING) 途径,通常用于DNA病毒,被RNA病毒劫持,如SARS-CoV-2和EV-D68. 它有助于形成复制器官,并影响细胞代谢.
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:
- 呼吸系统病毒,如人类犀牛病毒,SARS-CoV-2和D-68肠病毒 (EV-D68) 使用宿主脂质来产生复制器官 (RO).
- 干扰素基因刺激器 (STING) 途径是天生的免疫系统的DNA病毒感应机制的关键组成部分,主要控制I型干扰素的产生.
- 在RNA病毒感染中,STING通路的作用在很大程度上仍未被探索,尽管它在DNA病毒传感中已具备既定的功能.
研究的目的:
- 研究STING途径在形成RO的RNA病毒的复制中的作用,特别是EV-D68和SARS-CoV-2.
- 为了确定STING是否被这些RNA病毒劫持,用于它们的复制机制和器官形成.
- 探索STING,病毒复制和细胞代谢之间的潜在联系.
主要方法:
- 对STING途径的遗传和药理抑制.
- 与病毒复制元件和宿主细胞蛋白一起对STING的同定位研究.
- 分析病毒感染细胞中的细胞葡萄糖代谢,有或没有STING抑制.
主要成果:
- EV-D68和SARS-CoV-2利用STING进行复制,这表明RNA病毒感染中的非正规功能.
- STING与糖解酶共同定位,这表明它在推动病毒复制方面发挥了重要作用.
- 抑制STING调节了EV-D68感染细胞中的葡萄糖代谢,这表明潜在的免疫代谢操纵.
结论:
- 在RO生成RNA病毒的膜脂质重塑和复制囊泡形成中,STING途径起着非正规的作用.
- 在RNA病毒感染期间,STING似乎会影响免疫代谢,特别是葡萄糖代谢.
- 这些发现揭示了STING的新功能,超出其在DNA感知中的正规作用,影响RNA病毒复制和宿主细胞代谢.
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