Antigenic Drift in H5N1 Avian Influenza Virus in Poultry Is Driven by Mutations in Major Antigenic Sites of the Hemagglutinin Molecule Analogous to Those for Human Influenza Virus

被引:93
作者
Cattoli, Giovanni [1 ]
Milani, Adelaide [1 ]
Temperton, Nigel [2 ]
Zecchin, Bianca [1 ]
Buratin, Alessandra [1 ]
Molesti, Eleonora [2 ]
Aly, Mona Meherez [3 ]
Arafa, Abdel [3 ]
Capua, Ilaria [1 ]
机构
[1] Ist Zooprofilatt Sperimentale Venezie, OIE FAO Reference Lab Avian Influenza & Newcastle, I-35020 Legnaro, PD, Italy
[2] Univ Kent Medway, Sch Pharm, Chatham ME4 4AG, Kent, England
[3] Anim Hlth Res Inst, Natl Lab Vet Qual Control Poultry Prod, Giza 12618, Egypt
关键词
RECEPTOR-BINDING PROPERTIES; PHYLOGENETIC ANALYSIS; GENETIC DIVERSITY; A-VIRUSES; VACCINES; EVOLUTION; SPECIFICITY; PROTECTION; EPITOPES; ANTIBODY;
D O I
10.1128/JVI.02403-10
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
H5N1 highly pathogenic avian influenza virus has been endemic in poultry in Egypt since 2008, notwithstanding the implementation of mass vaccination and culling of infected birds. Extensive circulation of the virus has resulted in a progressive genetic evolution and an antigenic drift. In poultry, the occurrence of antigenic drift in avian influenza viruses is less well documented and the mechanisms remain to be clarified. To test the hypothesis that H5N1 antigenic drift is driven by mechanisms similar to type A influenza viruses in humans, we generated reassortant viruses, by reverse genetics, that harbored molecular changes identified in genetically divergent viruses circulating in the vaccinated population. Parental and reassortant phenotype viruses were antigenically analyzed by hemagglutination inhibition (HI) test and microneutralization (MN) assay. The results of the study indicate that the antigenic drift of H5N1 in poultry is driven by multiple mutations primarily occurring in major antigenic sites at the receptor binding subdomain, similarly to what has been described for human influenza H1 and H3 subtype viruses.
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收藏
页码:8718 / 8724
页数:7
相关论文
共 43 条
  • [41] Immunization by avian H5 influenza hemagglutinin mutants with altered receptor binding specificity
    Yang, Zhi-Yong
    Wei, Chih-Jen
    Kong, Wing-Pui
    Wu, Lan
    Xu, Ling
    Smith, David F.
    Nabel, Gary J.
    [J]. SCIENCE, 2007, 317 (5839) : 825 - 828
  • [42] Changes in H5N1 influenza virus hemagglutinin receptor binding domain affect systemic spread
    Yen, Hui-Ling
    Aldridge, Jerry R.
    Boon, Adrianus C. M.
    Ilyushina, Natalia A.
    Salomon, Rachelle
    Hulse-Post, Diane J.
    Marjuki, Henju
    Franks, John
    Boltz, David A.
    Bush, Dorothy
    Lipatov, Aleksandr S.
    Webby, Richard J.
    Rehg, Jerold E.
    Webster, Robert G.
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2009, 106 (01) : 286 - 291
  • [43] ,, 2008, Emerging Infectious Diseases, V14, pe1