猪NONO通过检测PRRSV N蛋白质来促进IRF3介导的抗病毒免疫反应
Dandan Jiang1, Chao Sui2, Xiangju Wu1
1Shandong Key Laboratory of Animal Disease Control and Breeding/Key Laboratory of Livestock and Poultry Multi-omics of MARA, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China.
PLoS pathogens
|October 16, 2024
概括
猪NONO蛋白通过增强干扰素-β (IFN-β) 免疫反应来抑制猪生殖和呼吸系统综合征病毒 (PRRSV) 复制. NONO与PRRSV N蛋白相互作用,增强IRF3激活,这对于抗病毒防御至关重要.
科学领域:
- 病毒学 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:
- 非POU域含有八聚体结合蛋白 (NONO) 是细胞过程的关键调节者,包括抗病毒免疫力.
- 尼诺在抑制猪生殖和呼吸系统综合征病毒 (PRRSV) 复制中的作用仍然在很大程度上未被探索.
研究的目的:
- 为了研究猪NONO (sNONO) 在PRRSV复制中的功能.
- 阐明NONO影响宿主抗病毒对PRRSV的反应的分子机制.
主要方法:
- 在NONO淘汰或淘汰的细胞中测试PRRSV感染.
- 对干扰素-β (IFN-β) 和IRF3激活的分析.
- 共同免疫沉用于研究蛋白质与蛋白质相互作用.
主要成果:
- 猪NONO (sNONO) 显著抑制了PRRSV的复制.
- 非NONO淘汰/淘汰细胞显示对PRRSV感染的敏感性增加.
- NONO通过促进IRF3激活来增强IFN-β表达.
- NONO与PRRSV的N蛋白相互作用,形成了一个核复合体 (N-NONO-IRF3).
- NONO逆转了PRRSV N蛋白对I型IFN信号传递的抑制作用.
结论:
- 猪NONO作为对PRRSV的关键抗病毒因子.
- NONO通过与PRRSV N蛋白的相互作用来增强IRF3介导的IFN-β激活.
- 这种相互作用促进了一种新型的抗病毒机制,涉及NONO作为支架蛋白.
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