STAT1 is essential for the inhibition of hepatitis C virus replication by interferon-λ but not by interferon-α.
STAT1 is essential for the inhibition of hepatitis C virus replication by interferon-λ but not by interferon-α.
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DOI:
10.1038/srep38336
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发表时间:
2016-12-08
影响因子:
4.6
通讯作者:
Sada K
中科院分区:
文献类型:
--
作者:
Yamauchi S;Takeuchi K;Chihara K;Honjoh C;Kato Y;Yoshiki H;Hotta H;Sada K
Interferon-α (IFN-α) and IFN-λ are structurally distinct cytokines that bind to different receptors, but induce expression of similar sets of genes through Janus kinase (JAK)-signal transducers and activators of transcription (STAT) pathways. The difference between IFN-α and IFN-λ signaling remains poorly understood. Here, using the CRISPR/Cas9 system, we examine the role of STAT1 and STAT2 in the inhibition of hepatitis C virus (HCV) replication by IFN-α and IFN-λ. Treatment with IFN-α increases expression of IFN-stimulated genes (ISGs) such as double-stranded RNA-activated protein kinase (PKR) and decreases viral RNA and protein levels in HCV-infected Huh-7.5 human hepatoma cells. These responses are only partially attenuated by knockout of STAT1 but are abolished by knockout of STAT2. In contrast, the inhibition of HCV replication by IFN-λ is abolished by knockout of STAT1 or STAT2. Microarray analysis reveals that IFN-α but not IFN-λ can induce expression of the majority of ISGs in STAT1 knockout cells. These findings suggest that IFN-α can inhibit HCV replication through a STAT2-dependent but STAT1-independent pathway, whereas IFN-λ induces ISG expression and inhibits HCV replication exclusively through a STAT1- and STAT2-dependent pathway.
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DOI:
10.1038/nrmicro3098
发表时间:
2013-10
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
4.8
作者:
Kraus, TA;Lau, JF;Horvath, CM
通讯作者:
Horvath, CM
影响因子:
3.7
作者:
George CX;Samuel CE
通讯作者:
Samuel CE
影响因子:
11.4
作者:
Hamming, Ole J.;Terczynska-Dyla, Ewa;Vieyres, Gabrielle;Dijkman, Ronald;Jorgensen, Sanne E.;Akhtar, Hashaam;Siupka, Piotr;Pietschmann, Thomas;Thiel, Volker;Hartmann, Rune
通讯作者:
Hartmann, Rune
影响因子:
64.8
作者:
Meylan, E;Curran, J;Tschopp, R
通讯作者:
Tschopp, R