核孤儿受体NR2F6在抗病毒天然免疫中的作用

The roles of nuclear orphan receptor NR2F6 in anti-viral innate immunity.

作者信息

Yang Chen, Wang Chen-Yu, Long Qiao-Yun, Cao Zhuo, Wei Ming-Liang, Tang Shan-Bo, Lin Xiang, Mu Zi-Qi, Xiao Yong, Chen Ming-Kai, Wu Min, Li Lian-Yun

机构信息

Frontier Science Center for Immunology and Metabolism, Hubei Key Laboratory of Cell Homeostasis, Hubei Key Laboratory of Developmentally Originated Disease, College of Life Sciences, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China.

Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, China.

出版信息

PLoS Pathog. 2024 Jun 3;20(6):e1012271. doi: 10.1371/journal.ppat.1012271. eCollection 2024 Jun.

Abstract

Proper transcription regulation by key transcription factors, such as IRF3, is critical for anti-viral defense. Dynamics of enhancer activity play important roles in many biological processes, and epigenomic analysis is used to determine the involved enhancers and transcription factors. To determine new transcription factors in anti-DNA-virus response, we have performed H3K27ac ChIP-Seq and identified three transcription factors, NR2F6, MEF2D and MAFF, in promoting HSV-1 replication. NR2F6 promotes HSV-1 replication and gene expression in vitro and in vivo, but not dependent on cGAS/STING pathway. NR2F6 binds to the promoter of MAP3K5 and activates AP-1/c-Jun pathway, which is critical for DNA virus replication. On the other hand, NR2F6 is transcriptionally repressed by c-Jun and forms a negative feedback loop. Meanwhile, cGAS/STING innate immunity signaling represses NR2F6 through STAT3. Taken together, we have identified new transcription factors and revealed the underlying mechanisms involved in the network between DNA viruses and host cells.

摘要

关键转录因子(如IRF3)进行适当的转录调控对于抗病毒防御至关重要。增强子活性的动态变化在许多生物学过程中发挥重要作用,并且表观基因组分析用于确定所涉及的增强子和转录因子。为了确定抗DNA病毒反应中的新转录因子,我们进行了H3K27ac ChIP-Seq并鉴定出三种转录因子NR2F6、MEF2D和MAFF,它们促进单纯疱疹病毒1型(HSV-1)复制。NR2F6在体外和体内促进HSV-1复制和基因表达,但不依赖于cGAS/STING途径。NR2F6与MAP3K5的启动子结合并激活AP-1/c-Jun途径,这对DNA病毒复制至关重要。另一方面,NR2F6被c-Jun转录抑制并形成负反馈环。同时,cGAS/STING天然免疫信号通过STAT3抑制NR2F6。综上所述,我们鉴定出了新的转录因子,并揭示了DNA病毒与宿主细胞之间网络中所涉及的潜在机制。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6981/11175508/766be073551a/ppat.1012271.g001.jpg

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