PA-X is an avian virulence factor in H9N2 avian influenza virus.
PA-X is an avian virulence factor in H9N2 avian influenza virus.
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DOI:
10.1099/jgv.0.001531
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Iqbal M
中科院分区:
文献类型:
--
作者:
Clements AL;Peacock TP;Sealy JE;Lee HM;Hussain S;Sadeyen JR;Shelton H;Digard P;Iqbal M
Influenza A viruses encode several accessory proteins that have host- and strain-specific effects on virulence and replication. The accessory protein PA-X is expressed due to a ribosomal frameshift during translation of the PA gene. Depending on the particular combination of virus strain and host species, PA-X has been described as either acting to reduce or increase virulence and/or virus replication. In this study, we set out to investigate the role PA-X plays in H9N2 avian influenza viruses, focusing on the natural avian host, chickens. We found that the G1 lineage A/chicken/Pakistan/UDL-01/2008 (H9N2) PA-X induced robust host shutoff in both mammalian and avian cells and increased virus replication in mammalian, but not avian cells. We further showed that PA-X affected embryonic lethality in ovo and led to more rapid viral shedding and widespread organ dissemination in vivo in chickens. Overall, we conclude PA-X may act as a virulence factor for H9N2 viruses in chickens, allowing faster replication and wider organ tropism.
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DOI:
10.1099/vir.0.000143
发表时间:
2015-08
期刊:
The Journal of general virology
影响因子:
--
作者:
Gao H;Sun H;Hu J;Qi L;Wang J;Xiong X;Wang Y;He Q;Lin Y;Kong W;Seng LG;Pu J;Chang KC;Liu X;Liu J;Sun Y
通讯作者:
Sun Y
影响因子:
5.8
作者:
Firth AE;Jagger BW;Wise HM;Nelson CC;Parsawar K;Wills NM;Napthine S;Taubenberger JK;Digard P;Atkins JF
通讯作者:
Atkins JF
影响因子:
5.4
作者:
Clements AL;Sealy JE;Peacock TP;Sadeyen JR;Hussain S;Lycett SJ;Shelton H;Digard P;Iqbal M
通讯作者:
Iqbal M
影响因子:
5.4
作者:
Hayashi, Tsuyoshi;Chaimayo, Chutikarn;Takimoto, Toru
通讯作者:
Takimoto, Toru
影响因子:
6.7
作者:
Machkovech, Heather M.;Bloom, Jesse D.;Subramaniam, Arvind R.
通讯作者:
Subramaniam, Arvind R.