PEDV非结构蛋白14抑制了RIPK3和RIPK1介导的PANoptosis
Xingyi Xie1, Dengkun Wang1, Xueke Sun1
1International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Henan Agricultural University, Zhengzhou, China.
Veterinary microbiology
|December 24, 2025
概括
猪流行性腹病毒 (PEDV) 通过抑制PANoptosis来逃避宿主防御. PEDV Nsp14蛋白质阻断ZBP1-RIPK3-MLKL通路,这对于控制病毒复制和免疫逃避至关重要.
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:
- 猪流行性腹病毒 (PEDV) 导致小猪严重腹,导致严重的经济损失.
- 泛亡是对病毒感染的关键宿主防御机制,但PEDV的逃避策略尚未完全理解.
研究的目的:
- 调查PEDV逃避宿主的PANoptosis反应的机制.
- 阐明 PEDV Nsp14 在调节 PANoptosis 和病毒复制中的作用.
主要方法:
- 利用PANoptosis激动剂来评估它们对PEDV复制的影响.
- 研究了PEDV Nsp14与ZBP1-RIPK3-MLKL信号通路之间的相互作用.
- 分析了NSP14对RIPK3和RIPK1.1促进体活性的影响.
- 研究了 RIPK1 和 Caspase 8 在降解 Nsp14 的作用.
主要成果:
- 帕诺普托斯激动剂显著抑制了PEDV复制.
- PEDV Nsp14被确定为ZBP1-RIPK3-MLKL轴激活的特定抑制剂.
- Nsp14抑制了RIPK3和RIPK1的促进剂活性,阻碍了信号传导.
- RIPK1使用Caspase 8来降解NSP14,从而阻止PEDV的复制.
结论:
- PEDV Nsp14在逃避宿主的PANoptosis反应方面发挥着至关重要的作用.
- 这项研究揭示了PEDV涉及Nsp14的免疫逃避的新型机制.
- 这些发现为PEDV感染和宿主-病原体相互作用提供了新的见解,可能为未来的治疗策略提供信息.
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