A novel role of ETV6 as a pro-viral factor in host response by inhibiting TBK1 phosphorylation
文献类型： 外文期刊
作者： Zhang, Shujun 1 ; Gao, Hui 1 ; You, Guangju 4 ; Cao, Hong 1 ; Wang, Yongqiang 1 ; Gao, Li 1 ; Zheng, Shijun J. 1 ;
作者机构： 1.Natl Key Lab Vet Publ Hlth Secur, Beijing, Peoples R China
2.Anim Epidemiol Minist Agr, Beijing, Peoples R China
3.China Agr Univ, Coll Vet Med, 2 Yuan Ming Yuan West Rd, Beijing 100193, Peoples R China
4.Fujian Acad Agr Sci, Inst Anim Husb & Vet Med, Lab Anim Virol, Fuzhou, Peoples R China
关键词： ETV6; dsRNA; RNA virus; TBK1; Type I interferon
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2024 年 279 卷
页码：
收录情况： SCI
摘要： E26-transforming specific (ETS) variant 6 (ETV6) is a transcription factor regulating the expression of interferon stimulating genes (ISGs) and involved in the embryonic development and hematopoietic regulation, but the role of ETV6 in host response to virus infection is not clear. In this study, we show that ETV6 was upregulated in DF-1 cells with poly(I:C) stimulation or IBDV, AIV and ARV infection via engagement of dsRNA by MDA5. Overexpression of ETV6 in DF-1 cells markedly inhibited IBDV-induced type I interferon (IFN-I) and ISGs expressions. In contrast, knockdown, or knockout of ETV6 remarkably inhibited IBDV replication via promoting IFN-I response. Furthermore, our data show that ETV6 negatively regulated host antiviral response to IBDV infection by interaction with TANK binding kinase 1 (TBK1) and subsequently inhibited its phosphorylation. These results uncovered a novel role of ETV6 as a pro-viral factor in host response by inhibiting TBK1 phosphorylation, furthering our understandings of RNA virus immunosuppression and providing a valuable clue to the development of antiviral reagents for the control of avian RNA virus infection.
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