Epigenetic addition of m(5)C to HBV transcripts promotes viral replication and evasion of innate antiviral responses.
Epigenetic addition of m(5)C to HBV transcripts promotes viral replication and evasion of innate antiviral responses.
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DOI:
10.1038/s41419-023-06412-9
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发表时间:
2024-01-12
影响因子:
9
通讯作者:
Guan, Wuxiang
中科院分区:
文献类型:
--
作者:
Ding, Shuang;Liu, Haibin;Liu, Lijuan;Ma, Li;Chen, Zhen;Zhu, Miao;Liu, Lishi;Zhang, Xueyan;Hao, Haojie;Zuo, Li;Yang, Jingwen;Wu, Xiulin;Zhou, Ping;Huang, Fang;Zhu, Fan;Guan, Wuxiang
Eukaryotic five-methylcytosine (m5C) is an important regulator of viral RNA splicing, stability, and translation. However, its role in HBV replication remains largely unknown. In this study, functional m5C sites are identified in hepatitis B virus (HBV) mRNA. The m5C modification at nt 1291 is not only indispensable for Aly/REF export factor (ALYREF) recognition to promote viral mRNA export and HBx translation but also for the inhibition of RIG-I binding to suppress interferon-β (IFN-β) production. Moreover, NOP2/Sun RNA methyltransferase 2 (NSUN2) catalyzes the addition of m5C to HBV mRNA and is transcriptionally downregulated by the viral protein HBx, which suppresses the binding of EGR1 to the NSUN2 promoter. Additionally, NSUN2 expression correlates with m5C modification of type I IFN mRNA in host cells, thus, positively regulating IFN expression. Hence, the delicate regulation of NSUN2 expression induces m5C modification of HBV mRNA while decreasing the levels of m5C in host IFN mRNA, making it a vital component of the HBV life cycle. These findings provide new molecular insights into the mechanism of HBV-mediated IFN inhibition and may inform the development of new IFN-α based therapies.
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影响因子:
64.8
作者:
Jiang, Fuguo;Ramanathan, Anand;Miller, Matthew T.;Tang, Guo-Qing;Gale, Michael, Jr.;Patel, Smita S.;Marcotrigiano, Joseph
通讯作者:
Marcotrigiano, Joseph
DOI:
10.1126/science.aad8711
发表时间:
2016-06-17
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Gilbert WV;Bell TA;Schaening C
通讯作者:
Schaening C
影响因子:
2.9
作者:
Wei Z;Panneerdoss S;Timilsina S;Zhu J;Mohammad TA;Lu ZL;de Magalhães JP;Chen Y;Rong R;Huang Y;Rao MK;Meng J
通讯作者:
Meng J
影响因子:
6.4
作者:
Durbin AF;Wang C;Marcotrigiano J;Gehrke L
通讯作者:
Gehrke L
影响因子:
12.3
作者:
Amort T;Rieder D;Wille A;Khokhlova-Cubberley D;Riml C;Trixl L;Jia XY;Micura R;Lusser A
通讯作者:
Lusser A