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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/7078


    Title: Cross-reactive neutralizing antibody responses to enterovirus 71 infections in young children: Implications for vaccine development
    Authors: Huang, ML;Chiang, PS;Chia, MY;Luo, ST;Chang, LY;Lin, TY;Ho, MS;Lee, MS
    Contributors: Division of Infectious Diseases
    Abstract: Background:Recently, enterovirus 71 (EV71) has caused life-threatening outbreaks involving neurological and cardiopulmonary complications in Asian children with unknown mechanism. EV71 has one single serotype but can be phylogenetically classified into 3 main genogroups (A, B and C) and 11 genotypes (A, B1~B5 and C1~C5). In Taiwan, nationwide EV71 epidemics with different predominant genotypes occurred in 1998 (C2), 2000–2001 (B4), 2004–2005 (C4), and 2008 (B5). In this study, sera were collected to measure cross-reactive neutralizing antibody titers against different genotypes. Methods:We collected historical sera from children who developed an EV71 infection in 1998, 2000, 2005, 2008, or 2010 and measured cross-reactive neutralizing antibody titers against all 11 EV71 genotypes. In addition, we aligned and compared the amino acid sequences of P1 proteins of the tested viruses. Results:Serology data showed that children infected with genogroups B and C consistently have lower neutralizing antibody titers against genogroup A (>4-fold difference). The sequence comparisons revealed that five amino acid signatures (N143D in VP2; K18R, H116Y, D167E, and S275A in VP1) are specific for genogroup A and may be related to the observed antigenic variations. Conclusions:This study documented antigenic variations among different EV71 genogroups and identified potential immunodominant amino acid positions. Enterovirus surveillance and vaccine development should monitor these positions.
    Date: 2013-02-14
    Relation: PLoS Neglected Tropical Diseases. 2013 Feb 14;7(2):Article number e2067.
    Link to: http://dx.doi.org/10.1371/journal.pntd.0002067
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1935-2735&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000315644900031
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84874778618
    Appears in Collections:[李敏西] 期刊論文

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