Cellular Microrna, Mir-1343-5P, Modulates Ifn-I Responses To Facilitate Feline Panleukopenia Virus Replication By Directly Targeting Irak1 Gene
文献类型: 外文期刊
作者: Zhang, LL; Zhao, JJ; Zhai, ZA; Liang, L; Liang, RY; Cui, SJ
作者机构:
关键词: Feline Panleukopenia Virus; Mir-1343-5P; Interleukin-1 Receptor-Associated Kinase 1; Type I Interferon; Viral Replication
期刊名称: VETERINARY MICROBIOLOGY
ISSN: 0378-1135
年卷期: 2020 年 245 卷 0 期
页码:
收录情况: JCR(2021版)
摘要: Feline panleukopenia is an acute, highly contagious, and fatal infectious disease caused by feline panleukopenia virus (FPV) and has led to severe consequences on pets, economically important animals, and the wildlife industry. MicroRNAs (miRNAs) play significant roles in the host-pathogen interaction by modulating cellular factors expression which are essential for viral replication or host innate immune response to infection. However, the role of host miRNA response in FPV infection remains to be discovered. In this study, we screened nine host miRNAs associated with FPV infection that were previously implicated in innate immunity or antiviral functions. We found that miR-1343-5p overexpression strongly promoted FPV-BJ04 genomic DNA. Subsequently, the expression of host miR-1343-5p was upregulated by FPV-BJ04 infection in vitro and in vivo. In addition, we demonstrated that miR-1343-5p was a negative regulator of the IFN-I signaling pathway, thereby promoting FPV infection. Bioinformatic analysis combined with molecular biological assay indicated that interleukin-1 receptor-associated kinase 1 (IRAK1) is a putative target of miR-1343-5p. Collectively, our findings emphasize the importance of miR-1343-5p in host defense against FPV, thus, enhancing our understanding of its pathogenic mechanism.
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