國家衛生研究院 NHRI:Item 3990099045/7078

NHRI > National Institute of Infectious Diseases and Vaccinology > Min-Shi Lee > Periodical Articles > Item 3990099045/7078

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:	[Min-Shi Lee] Periodical Articles

Files in This Item:

File	Description	Size	Format
PLO2013030101.pdf		823Kb	Adobe PDF	752	View/Open

Loading...