Cellular DNAJA3, a Novel VP1-Interacting Protein, Inhibits Foot-and-Mouth Disease Virus Replication by Inducing Lysosomal Degradation of VP1 and Attenuating Its Antagonistic Role in the Beta Interferon Signaling Pathway

作者：Wei Zhang, Fan Yang, Zixiang Zhu, Yang Yang, Zhifang Wang, Weijun Cao, Wen Dang, Linlin Li, Ruoqing Mao, Yongjie Liu, Hong Tian, Keshan Zhang, Xiangtao Liu, Junwu Ma, Haixue Zheng · 发表于：Journal of Virology · 年份：2019 · DOI：10.1128/jvi.00588-19 · 被引用次数：54 · 研究领域：Animal Disease Management and Epidemiology、Viral Infections and Immunology Research、Vector-Borne Animal Diseases

This study pioneeringly determined the antiviral role of DNAJA3 in FMDV. DNAJA3 was found to interact with FMDV VP1 and trigger its degradation via the lysosomal pathway. In addition, this study is also the first to clarify the mechanism by which VP1 suppressed IFN-β signaling pathway by inhibiting the phosphorylation, dimerization, and nuclear translocation of IRF3. Moreover, DNAJA3 significantly abrogated VP1-induced inhibitive effect on the IFN-β signaling pathway. These data suggested that DNAJA3 plays an important antiviral role against FMDV by both degrading VP1 and restoring of IFN-β signaling pathway.