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通过降低IRF9的调节,IRF8促进了牛短暂热病毒的复制

Peili Hou¹, Jie Chen¹, Hongchao Zhu¹

¹Ruminant Diseases Research Center, College of Life Sciences, Shandong Normal University, Jinan 250358, China.

Veterinary microbiology

|June 13, 2025

概括

干扰素调节因子8 (IRF8) 通过降解IRF9,抑制I型干扰素通路,有助于牛短暂发烧病毒 (BEFV) 的复制. 这个IRF8-NEDD4L-IRF9轴对BEFV感染至关重要.

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:

干扰素调节因子8 (IRF8) 是免疫细胞功能的关键调节者.
在此之前,IRF8在牛短暂发烧病毒 (BEFV) 感染中的作用是未知的.

研究的目的:

为了研究在BEFV感染期间IRF8的功能.
阐明IRF8影响BEFV复制和宿主免疫反应的分子机制.

主要方法:

在BEFV感染时分析IRF8表达水平.
调查IRF8对BEFV复制的影响.
使用分子生物学技术研究IRF8,IRF9和NEDD4L之间的相互作用.
使用淘汰实验来验证NEDD4L的作用.

主要成果:

经过BEFV感染,可以提高IRF8表达的调节.
IRF8促进了 BEFV 的复制.
IRF8通过通过NEDD4L介导的全素-蛋白酶体通路促进IRF9降解来抑制I型干扰素信号传递.
在NEDD4L中,NEDD4L Knockdown减弱了IRF8对干扰素信号传递和病毒复制的影响.

结论:

IRF8-NEDD4L-IRF9轴劫持了I型干扰素路径,以促进BEFV感染.
通过破坏宿主抗病毒防御,IRF8在促进BEFV复制方面发挥着至关重要的作用.
这些发现为开发针对BEFV的新型抗病毒策略提供了见解.

关键词:

牛短暂发烧病毒 (BEFV)在 IRF9 中,IRF9 是 IRF9 的第一个类型.干扰素调节因子8 (IRF8)像E3一样的NEDD4 乌比奎丁蛋白质结合酶 (NEDD4L)

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