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非洲猪瘟病毒I10L蛋白通过靶向IKKβ抑制NF-κB信号通路

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炎性因子在非洲猪瘟病毒(ASFV)致非洲猪瘟(ASF)的发病机制中发挥着重要作用,该病毒引发高度传染性且严重的出血性疾病。在本研究中ASFV的I10L蛋白可能是TNF-α和IL-1β触发的NF-κB信号通路的潜在抑制剂。在HEK293T和PK-15细胞中,异位表达的pI10L显著抑制了NF-κB信号的激活。缺乏I10L基因的ASFV突变体(ASFVΔI10L)在初代猪肺泡巨噬细胞(PAMs)中诱导了比其亲本ASFV HLJ/2018株(ASFVWT)更高水平的炎症因子产生。该研究阐明了pI10L的免疫抑制活性,并为深入了解ASFV病理生物学以及开发针对ASF的疫苗提供参考。
African Swine Fever Virus I10L Protein Inhibits NF-κB Signaling Pathway by Targeting IKKβ
In the pathogenesis of African Swine Fever(ASF)caused by the African Swine Fever Virus(ASFV),inflammatory factors play a crucial role,leading to a highly contagious and severe hemorrhagic disease.In this study,the I10L protein of ASFV is identified as a potential inhibitor of the NF-κB signaling pathway triggered by TNF-α and IL-1β.Ectopically expressed pI10L significantly inhibits the activation of the NF-κB signaling pathway in HEK293T and PK-15 cells.The ASFV mutant lacking the I10L gene(ASFVΔI10L)induces higher levels of inflammatory factors in primary porcine alveolar macrophages(PAMs)compared to its parental ASFV HLJ/2018 strain(ASFVWT).This study elucidates the immunomodulatory activity of pI10L and provides insights for a deeper understanding of ASFV pathobiology and the development of vaccines against ASF.

African Swine Fever Virusinflammatory responseI10L proteinIKKβ

廖金艳、许力匆、黄丽非、龙春蓓

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广西崇左市龙州县动物疫病预防控制中心,广西 崇左 532400

广西崇左市动物疫病预防控制中心,广西 崇左 532200

广西崇左市天等县动物疫病预防控制中心,广西 崇左 532800

非洲猪瘟病毒 炎症反应 I10L蛋白 IKKβ

崇左市非洲猪瘟防控体系建设项目

2023XC015677

2024

现代畜牧科技
黑龙江省畜牧研究所

现代畜牧科技

影响因子:0.066
ISSN:2095-9737
年,卷(期):2024.(5)
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