N-myc和STAT交互体降解了干扰素调节因子7介导的I型干扰素信号传输,以促进子Tembusu病毒的复制
Wanshuang Luo1, Wenjun Cai1, Anchun Cheng1
1Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611130, China; Engineering Research Center of Southwest Animal Disease Prevention and Control Technology, Ministry of Education, Chengdu, Sichuan, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Chengdu, Sichuan, 611130, China.
Poultry science
|September 13, 2024
概括
子N-myc和STAT交互因子 (NMI) 通过与子IRF7相互作用,抑制干扰素的产生和病毒复制,抑制了对子Tembusu病毒 (DTMUV) 的抗病毒反应.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 分子生物学分子生物学
背景情况:
- N-myc和STAT交互因子 (NMI) 是一种干扰素诱导的蛋白质,参与抗病毒反应.
- 在感染特姆布苏病毒 (DTMUV) 期间,子中NMI的作用仍然未被描述.
研究的目的:
- 调查子NMI (duNMI) 在对DTMUV感染的抗病毒反应中的作用.
- 描述duNMI基因,其组织分布及其在DTMUV感染期间的功能.
主要方法:
- 对duNMI基因进行克隆和序列分析.
- 对子中duNMI表达的组织分布分析.
- DTMUV刺激测试用于评估duNMI mRNA水平和病毒复制.
- 对duNMI与子IRF7 (duIRF7) 的相互作用及其对干扰素-β (IFN-β) 活性的影响的分析.
主要成果:
- duNMI基因编码了一个具有Coiled-coil,NID1和NID2域的蛋白质.
- duNMI的表达在硬质腺,小肠和胰腺中最高.
- DTMUV刺激显著增加了duNMI mRNA水平.
- 过度表达duNMI以剂量依赖的方式抑制了DTMUV复制.
- duNMI通过其NID1和NID2域与duIRF7相互作用,抑制duIRF7表达和IFN-β激活.
结论:
- 在DTMUV感染期间,子NMI作为抗病毒先天免疫反应的抑制剂.
- duNMI与duIRF7的相互作用抑制了干扰素通路.
- 这些发现为DTMUV预防策略提供了理论基础.
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