MicroRNA miR-155 inhibits cyprinid herpesvirus 3 replication via regulating AMPK-MAVS-IFN axis

文献类型： 外文期刊

第一作者： Zhang, Chi

作者： Zhang, Chi;Liu, An-qi;Zhang, Chu;Liu, Lan-Hao;Tu, Jiagang;Zhang, Yong-An;Zhang, Yong-An;Tu, Jiagang;Zhang, Yong-An;Zhang, Yong-An;Zhang, Yong-An;Wang, Qing;Liu, Lan-Hao;Lu, Long-Feng

作者机构：

关键词： miR-155; CyHV-3; AMPK; MAVS; Type I interferon

期刊名称：DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY （ 影响因子：3.605； 五年影响因子：3.833 ）

ISSN： 0145-305X

年卷期： 2022 年 129 卷

页码：

收录情况： SCI

摘要： Since emerged in the late 1990s, cyprinid herpesvirus 3 (CyHV-3) has caused huge economic losses in common and koi carp culture worldwide. Accumulating evidences suggest that teleost fish microRNA (miRNA), a class of non-coding RNA of similar to 22 nucleotides, can participate in many cellular processes, especially in host antiviral defenses. However, the roles of miRNAs in CyHV-3 infection are still unclear. Here, using high-throughput miRNA sequencing and quantitative real-time PCR (qRT-PCR) verification, we found that miR-155 was significantly upregulated in common carp brain (CCB) cells upon CyHV-3 infection. Overexpression of miR-155 effectively inhibited CyHV-3 replication in CCB cells and promoted type I interferon (IFN-I) expression. Further study revealed that miR-155 targeted the 3' untranslated region (UTR) of the mRNA of 5' AMP-activated protein kinase (AMPK), and that AMPK could interact with and degrade the mitochondrial antiviral signaling protein (MAVS), resulting in the reduction of interferon (IFN) expression. Collectively, our results show that miR155, induced by CyHV-3 infection, exhibits anti-CyHV-3 activity via regulating AMPK-MAVS-IFN axis, which will help design anti-CyHV-3 drugs.

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