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Taeyong Kwon¹, Igor Morozov¹, Chester D McDowell¹

¹Department of Diagnostic Medicine/Pathobiology, Kansas State University, Manhattan, KS, USA.

Emerging microbes & infections

|November 10, 2025

概括

缺少TMPRSS2基因的基因编辑猪显著减少了流感A病毒 (IAV) 流失和传播. 这些发现突出了TMPRSS2的特点.

科学领域:

兽医病毒学兽医病毒学
动物遗传学动物遗传学
传染病传播传染病传播

背景情况:

猪流感A型病毒 (IAV) 造成经济损失,并构成流行病风险.
猪是IAV重组的中间宿主.
此前已经产生了TMPRSS2基因淘汰 (KO) 猪,并且显示敏感性降低.

研究的目的:

为了评估从TMPRSS2 KO猪到接收猪的IAV传播.
为了比较TMPRSS2 KO和野生型 (WT) 猪之间的传播动态.

主要方法:

主要感染的TMPRSS2 KO猪与哨戒TMPRSS2 KO和WT猪共住.
监测了IAV鼻流,传染性病毒存在和血清转化.
传输效率在KO-WT和WT-WT情景之间进行了比较.

主要成果:

主要受感染的TMPRSS2 KO猪表现出有限的鼻腔IAV脱落.
哨兵TMPRSS2 KO猪在同住后没有受到感染.
与WT-to-WT传输相比,IAV传输到哨戒WT猪的时间明显延迟.

结论:

在TMPRSS2 KO猪中,IAV传输显著受损.
针对TMPRSS2提供了一种潜在的策略来控制猪中IAV的传播.
基因编辑可以降低猪中IAV出现和传播的风险.

关键词:

这就是TMPRSS2的原因.基因编辑猪的基因编辑猪血凝氨酸是什么血凝氨酸流感流感流感流感流感传输传输传输传输传输传输

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Viral Recombination

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