Phosphorylation of G3BP1 is involved in the regulation of PDCoV-induced inflammatory response

文献类型： 外文期刊

第一作者： Zhang, Baotai

作者： Zhang, Baotai;Li, Siyuan;Chen, Zhuoqi;Fan, Liyuan;Wang, Wei;Guo, Rongli;Fan, Baochao;Li, Jizong;Li, Bin;Zhang, Baotai;Li, Siyuan;Chen, Zhuoqi;Fan, Liyuan;Wang, Wei;Guo, Rongli;Fan, Baochao;Li, Jizong;Li, Bin;Fan, Baochao;Li, Jizong;Li, Bin;Fan, Liyuan;Fan, Baochao;Li, Jizong;Li, Bin;Fan, Baochao;Li, Jizong;Li, Bin;Li, Jizong;Li, Bin

作者机构：

关键词： Porcine deltacoronavirus; Stress granules; G3BP1; Inflammatory cytokines

期刊名称：VETERINARY MICROBIOLOGY （ 影响因子：3.3； 五年影响因子：3.5 ）

ISSN： 0378-1135

年卷期： 2024 年 293 卷

页码：

收录情况： SCI

摘要： Stress granules (SGs), the main component is GTPase-activating protein-binding protein 1 (G3BP1), which are assembled during viral infection and function to sequester host and viral mRNAs and proteins, are part of the antiviral responses. In this study, we found that porcine deltacoronavirus (PDCoV) infection induced stable formation of robust SGs in cells through a PERK (protein kinase R-like endoplasmic reticulum kinase)-dependent mechanism. Overexpression of SGs marker proteins G3BP1 significantly reduced PDCoV replication in vitro, while inhibition of endogenous G3BP1 enhanced PDCoV replication. Moreover, PDCoV infected LLC-PK1 cells raise the phosphorylation level of G3BP1. By overexpression of the G3BP1 phosphorylated protein or the G3BP1 dephosphorylated protein, we found that phosphorylation of G3BP1 is involved in the regulation of PDCoVinduced inflammatory response. Taken together, our study presents a vital aspect of the host innate response to invading pathogens and reveals attractive host targets for antiviral target.

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