通过NF-κB信号通路通过PEDV感染诱导的IL-8分泌量的增加
Yang Wu1, Yongrui Wang1, Xuepeng Wang1
1State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.
Frontiers in cellular and infection microbiology
|August 6, 2024
概括
猪流行性腹病毒 (PEDV) 通过NF-κB激活在肠道细胞中触发互白素-8 (IL-8) 的产生. 这表明IL-8启动了猪对PEDV感染的炎症反应.
科学领域:
- 兽医病毒学 兽医病毒学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 猪流行性腹病毒 (PEDV) 引起严重的肠炎和小猪的高死亡率.
- 了解PEDV诱导的炎症的分子基础对于疾病管理至关重要.
研究的目的:
- 为了阐明在PEDV感染期间导致炎症前的细胞因子产生背后的分子机制.
- 研究特定PEDV蛋白在启动宿主炎症反应中的作用.
主要方法:
- 猪肠上皮细胞 (IPEC-J2) 和Vero E6细胞感染PEDV.
- 随着时间的推移量化介素-8 (IL-8) 的产生.
- 核因子-kappa B (NF-κB) 激活途径的分析.
- 评估PEDV M和E蛋白对IL-8的诱导.
主要成果:
- PEDV感染导致IPEC-J2和Vero E6细胞的IL-8产量随时间变化而增加.
- IL-8分泌与NF-κB通路激活相关.
- 仅PEDV M或E蛋白的表达就足以上调IL-8的产生.
结论:
- PEDV感染激活NF-κB,导致肠道上皮细胞增加IL-8的产生.
- PEDV M和E蛋白在启动这种炎症反应方面发挥着作用.
- IL-8可能是宿主对PEDV.的炎症反应的早期调解者.
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