國家衛生研究院 NHRI:Item 3990099045/7711
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    题名: Monoclonal antibodies for diagnosis of enterovirus 71
    作者: Xu, L;Huang, KJ;Ho, TS;Liu, CC;Lee, YR;Lin, CY;Shiuan, D;Jiang, XH
    贡献者: Division of Vaccine Research and Development
    摘要: Enterovirus 71 (EV71), one of the major causative agents of hand, foot, and mouth disease (HFMD), is now recognized as an emerging neurotropic virus in Asia and may cause severe neurologic complications and mortalities. Laboratory diagnosis of EV71 infection must be efficient and accurate, which could be accomplished by various immunoassays. In this study we use a live EV71 isolate, Tainan/4643/98, with genotype C2 as an immunogen to sensitize BALB/c (H-2(d)) mice and then generate the EV71-specific murine monoclonal antibodies. Five hybridoma clones were established and their monoclonal antibodies were characterized. All five clones are applicable in immunofluorescence staining but with different sensitivities - that is, MAbs 22, 24, and 27 were sensitive in IFA detection, and MAbs 22 and 24 were also confirmed in flow cytometry. None of these cross-reacted with coxsackievirus A16 (CVA16) or Echovirus type 6 (ECHO6), but each varied in binding to different EV71 subgenogroups (B1, B4, B5, C2, and C4). Western blot analysis revealed that all of these MAbs reacted with EV71 VP1 capsid proteins, and in addition MAbs 22 and 24 exhibited potent neutralizing activities against EV71 and protected cells from infection. Further, mapping the epitopes for each MAb revealed that only MAb 27 showed positive for the linear epitope DVIESSIGDSVSRAL, which was located at the N-terminus (a.a. 6-20) of EV71 VP1 and highly conserved among all EV71 subgenotypes. Thus, these MAbs may provide valuable tools for the laboratory diagnosis of EV71 infection and for vaccine development.
    日期: 2013-12
    關聯: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy. 2013 Dec;32(6):386-394.
    Link to: http://dx.doi.org/10.1089/mab.2013.0033
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84890631077
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