Cross-reactive Neutralizing Antibody Responses to Enterovirus 71 Infections in Young Children: Implications for Vaccine Development

Mei Liang Huang, Pai Shan Chiang, Min Yuan Chia, Shu Ting Luo, Luan Yin Chang, Tzou Yien Lin, Mei Shang Ho, Min Shi Lee

Research output: Contribution to journalArticle

39 Citations (Scopus)

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.

Original languageEnglish
Article numbere2067
JournalPLoS Neglected Tropical Diseases
Volume7
Issue number2
DOIs
Publication statusPublished - 2013
Externally publishedYes

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Enterovirus Infections
Neutralizing Antibodies
Antibody Formation
Vaccines
Enterovirus
Genotype
Antigenic Variation
Amino Acids
Serology
Serum
Taiwan
Disease Outbreaks
Amino Acid Sequence
Viruses

ASJC Scopus subject areas

  • Pharmacology, Toxicology and Pharmaceutics(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

Cite this

Cross-reactive Neutralizing Antibody Responses to Enterovirus 71 Infections in Young Children : Implications for Vaccine Development. / Huang, Mei Liang; Chiang, Pai Shan; Chia, Min Yuan; Luo, Shu Ting; Chang, Luan Yin; Lin, Tzou Yien; Ho, Mei Shang; Lee, Min Shi.

In: PLoS Neglected Tropical Diseases, Vol. 7, No. 2, e2067, 2013.

Research output: Contribution to journalArticle

Huang, Mei Liang ; Chiang, Pai Shan ; Chia, Min Yuan ; Luo, Shu Ting ; Chang, Luan Yin ; Lin, Tzou Yien ; Ho, Mei Shang ; Lee, Min Shi. / Cross-reactive Neutralizing Antibody Responses to Enterovirus 71 Infections in Young Children : Implications for Vaccine Development. In: PLoS Neglected Tropical Diseases. 2013 ; Vol. 7, No. 2.
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