Synergistic effect of PB2 283M and 526R contributes to enhanced virulence of H5N8 influenza viruses in mice
Identifieur interne : 000235 ( Main/Exploration ); précédent : 000234; suivant : 000236Synergistic effect of PB2 283M and 526R contributes to enhanced virulence of H5N8 influenza viruses in mice
Auteurs : Xiao Wang ; Sujuan Chen ; Dandan Wang ; Xixin Zha ; Siwen Zheng ; Tao Qin ; Wenjun Ma ; Daxin Peng ; Xiufan LiuSource :
- Veterinary Research [ 0928-4249 ] ; 2017-12.
Abstract
AbstractHighly pathogenic avian influenza (HPAI) H5N8 virus has caused considerable economic losses to poultry industry and poses a great threat to public health. Our previous study revealed two genetically similar HPAI H5N8 viruses displaying completely different virulence in mice. However, the molecular basis for viral pathogenicity to mammals remains unknown. Herein, we generated a series of reassortants between the two viruses and evaluated their virulence in mice. We demonstrated that 283M in PB2 is a new mammalian virulence marker for H5 viruses and that synergistic effect of amino acid residues 283M and 526R in PB2 is responsible for high virulence of the HPAI H5N8 virus. Analysis of available PB2 sequences showed that PB2 283M is highly conserved among influenza A viruses, while PB2 526R presents in most of human H3N2 and H5N1 isolates. Further study confirmed that the residues 283M and 526R had similar impacts on an HPAI H5N1 virus, suggesting that influenza viruses with both residues may replicate well in mammalian hosts. Together, these results present new insights for synergistic effect of 283M and 526R in PB2 of H5 HPAI virus on virulence to mammalian host, furthering our understanding of the pathogenesis of influenza A virus.
Url:
DOI: 10.1186/s13567-017-0471-0
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Synergistic effect of PB2 283M and 526R contributes to enhanced virulence of H5N8 influenza viruses in mice</title><author><name sortKey="Wang, Xiao" sort="Wang, Xiao" uniqKey="Wang X" first="Xiao" last="Wang">Xiao Wang</name></author><author><name sortKey="Chen, Sujuan" sort="Chen, Sujuan" uniqKey="Chen S" first="Sujuan" last="Chen">Sujuan Chen</name></author><author><name sortKey="Wang, Dandan" sort="Wang, Dandan" uniqKey="Wang D" first="Dandan" last="Wang">Dandan Wang</name></author><author><name sortKey="Zha, Xixin" sort="Zha, Xixin" uniqKey="Zha X" first="Xixin" last="Zha">Xixin Zha</name></author><author><name sortKey="Zheng, Siwen" sort="Zheng, Siwen" uniqKey="Zheng S" first="Siwen" last="Zheng">Siwen Zheng</name></author><author><name sortKey="Qin, Tao" sort="Qin, Tao" uniqKey="Qin T" first="Tao" last="Qin">Tao Qin</name></author><author><name sortKey="Ma, Wenjun" sort="Ma, Wenjun" uniqKey="Ma W" first="Wenjun" last="Ma">Wenjun Ma</name></author><author><name sortKey="Peng, Daxin" sort="Peng, Daxin" uniqKey="Peng D" first="Daxin" last="Peng">Daxin Peng</name></author><author><name sortKey="Liu, Xiufan" sort="Liu, Xiufan" uniqKey="Liu X" first="Xiufan" last="Liu">Xiufan Liu</name></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:hal-01623957</idno><idno type="halId">hal-01623957</idno><idno type="halUri">https://hal.archives-ouvertes.fr/hal-01623957</idno><idno type="url">https://hal.archives-ouvertes.fr/hal-01623957</idno><idno type="doi">10.1186/s13567-017-0471-0</idno><date when="2017-12">2017-12</date><idno type="wicri:Area/Hal/Corpus">000280</idno><idno type="wicri:Area/Hal/Curation">000280</idno><idno type="wicri:Area/Hal/Checkpoint">000043</idno><idno type="wicri:explorRef" wicri:stream="Hal" wicri:step="Checkpoint">000043</idno><idno type="wicri:doubleKey">0928-4249:2017:Wang X:synergistic:effect:of</idno><idno type="wicri:Area/Main/Merge">000235</idno><idno type="wicri:Area/Main/Curation">000235</idno><idno type="wicri:Area/Main/Exploration">000235</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Synergistic effect of PB2 283M and 526R contributes to enhanced virulence of H5N8 influenza viruses in mice</title><author><name sortKey="Wang, Xiao" sort="Wang, Xiao" uniqKey="Wang X" first="Xiao" last="Wang">Xiao Wang</name></author><author><name sortKey="Chen, Sujuan" sort="Chen, Sujuan" uniqKey="Chen S" first="Sujuan" last="Chen">Sujuan Chen</name></author><author><name sortKey="Wang, Dandan" sort="Wang, Dandan" uniqKey="Wang D" first="Dandan" last="Wang">Dandan Wang</name></author><author><name sortKey="Zha, Xixin" sort="Zha, Xixin" uniqKey="Zha X" first="Xixin" last="Zha">Xixin Zha</name></author><author><name sortKey="Zheng, Siwen" sort="Zheng, Siwen" uniqKey="Zheng S" first="Siwen" last="Zheng">Siwen Zheng</name></author><author><name sortKey="Qin, Tao" sort="Qin, Tao" uniqKey="Qin T" first="Tao" last="Qin">Tao Qin</name></author><author><name sortKey="Ma, Wenjun" sort="Ma, Wenjun" uniqKey="Ma W" first="Wenjun" last="Ma">Wenjun Ma</name></author><author><name sortKey="Peng, Daxin" sort="Peng, Daxin" uniqKey="Peng D" first="Daxin" last="Peng">Daxin Peng</name></author><author><name sortKey="Liu, Xiufan" sort="Liu, Xiufan" uniqKey="Liu X" first="Xiufan" last="Liu">Xiufan Liu</name></author></analytic><idno type="DOI">10.1186/s13567-017-0471-0</idno><series><title level="j">Veterinary Research</title><idno type="ISSN">0928-4249</idno><imprint><date type="datePub">2017-12</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"> <p>AbstractHighly pathogenic avian influenza (HPAI) H5N8 virus has caused considerable economic losses to poultry industry and poses a great threat to public health. Our previous study revealed two genetically similar HPAI H5N8 viruses displaying completely different virulence in mice. However, the molecular basis for viral pathogenicity to mammals remains unknown. Herein, we generated a series of reassortants between the two viruses and evaluated their virulence in mice. We demonstrated that 283M in PB2 is a new mammalian virulence marker for H5 viruses and that synergistic effect of amino acid residues 283M and 526R in PB2 is responsible for high virulence of the HPAI H5N8 virus. Analysis of available PB2 sequences showed that PB2 283M is highly conserved among influenza A viruses, while PB2 526R presents in most of human H3N2 and H5N1 isolates. Further study confirmed that the residues 283M and 526R had similar impacts on an HPAI H5N1 virus, suggesting that influenza viruses with both residues may replicate well in mammalian hosts. Together, these results present new insights for synergistic effect of 283M and 526R in PB2 of H5 HPAI virus on virulence to mammalian host, furthering our understanding of the pathogenesis of influenza A virus.</p> </div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Chen, Sujuan" sort="Chen, Sujuan" uniqKey="Chen S" first="Sujuan" last="Chen">Sujuan Chen</name><name sortKey="Liu, Xiufan" sort="Liu, Xiufan" uniqKey="Liu X" first="Xiufan" last="Liu">Xiufan Liu</name><name sortKey="Ma, Wenjun" sort="Ma, Wenjun" uniqKey="Ma W" first="Wenjun" last="Ma">Wenjun Ma</name><name sortKey="Peng, Daxin" sort="Peng, Daxin" uniqKey="Peng D" first="Daxin" last="Peng">Daxin Peng</name><name sortKey="Qin, Tao" sort="Qin, Tao" uniqKey="Qin T" first="Tao" last="Qin">Tao Qin</name><name sortKey="Wang, Dandan" sort="Wang, Dandan" uniqKey="Wang D" first="Dandan" last="Wang">Dandan Wang</name><name sortKey="Wang, Xiao" sort="Wang, Xiao" uniqKey="Wang X" first="Xiao" last="Wang">Xiao Wang</name><name sortKey="Zha, Xixin" sort="Zha, Xixin" uniqKey="Zha X" first="Xixin" last="Zha">Xixin Zha</name><name sortKey="Zheng, Siwen" sort="Zheng, Siwen" uniqKey="Zheng S" first="Siwen" last="Zheng">Siwen Zheng</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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