Polo-like-kinase 1 is a proviral host factor for hepatitis B virus replication.
Polo-like-kinase 1 is a proviral host factor for hepatitis B virus replication.
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DOI:
10.1002/hep.29236
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发表时间:
2017-12
期刊:
影响因子:
--
通讯作者:
Durantel D
中科院分区:
文献类型:
--
作者:
Diab A;Foca A;Fusil F;Lahlali T;Jalaguier P;Amirache F;N'Guyen L;Isorce N;Cosset FL;Zoulim F;Andrisani O;Durantel D
Chronic Hepatitis B Virus (HBV) infection is a major risk factor for hepatocellular carcinoma (HCC) and current treatments for CHB and HCC are perfectible. Herein, we identified cellular Serine/Threonine Polo-like-kinase 1 (PLK1) as a positive effector of HBV replication. The aim of this study was to demonstrate the proviral role of PLK1 in HBV biosynthesis and validate PLK1 inhibition a potential antiviral strategy. To this end, we employed physiologically relevant HBV infection models of Primary Human Hepatocytes (PHH) and differentiated HepaRG cells, in conjunction with pharmacologic PLK1 inhibitors, siRNA-mediated knockdown, and overexpression of constitutively active PLK1 (PLK1CA). In addition, humanized liver FRG mouse model was used to determine antiviral effect of PLK1 inhibitor BI-2536 on HBV infection in vivo. Lastly, in vitro PLK1 kinase assays and site-directed mutagenesis were employed to demonstrate HBV core protein (HBc) is a PLK1 substrate. We demonstrate HBV infection activated cellular PLK1 in PHH and dHepaRG cells. PLK1 inhibition by BI-2536 or siRNA-mediated knockdown suppressed, whereas overexpression of PLK1CA increased HBV DNA biosynthesis, supporting PLK1 effects on viral biosynthesis are specific, and PLK1 is a proviral cellular factor. Significantly, BI-2536 administration to HBV-infected humanized liver FRG mice strongly inhibited HBV infection, validating PLK1 as a novel antiviral target in vivo. The proviral action of PLK1 is associated with the biogenesis of the nucleocapsid, as BI-2536 leads to its decreased intracellular formation/accumulation. In this respect, our studies identified HBc as a PLK1 substrate in vitro, and mapped PLK1 phosphorylation sites on this protein. PLK1 is a proviral host factor that could be envisaged as a target for combined antiviral and antitumoral strategies against HBV infection and HBV mediated carcinogenesis.
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影响因子:
5.7
作者:
Gutteridge RE;Ndiaye MA;Liu X;Ahmad N
通讯作者:
Ahmad N
影响因子:
5.4
作者:
Chen, Yung-Chia;Su, Wen-Chi;Lai, Michael M. C.
通讯作者:
Lai, Michael M. C.
DOI:
10.1002/hep.29236
发表时间:
2017-12
期刊:
Hepatology (Baltimore, Md.)
影响因子:
--
作者:
Diab A;Foca A;Fusil F;Lahlali T;Jalaguier P;Amirache F;N'Guyen L;Isorce N;Cosset FL;Zoulim F;Andrisani O;Durantel D
通讯作者:
Durantel D
影响因子:
5.3
作者:
Lu, Lin-Yu;Wood, Jamie L.;Chen, Junjie
通讯作者:
Chen, Junjie
影响因子:
5.4
作者:
Jung, Jaesung;Hwang, Seong Gyu;Kim, Kyongmin
通讯作者:
Kim, Kyongmin