Immunogenicity of experimental live attenuated Japanese encephalitis vaccine viruses and comparison with wild-type strains using monoclonal and polyclonal antibodies

  • B. K. Sil
  • , M. R. Wills
  • , J. X. Cao
  • , R. Sharda
  • , M. A. Islam
  • , D. J. Stagg
  • , A. D. Jennings
  • , C. A. Gibson
  • , A. D.T. Barrett

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A total of 105 hybridomas secreting anti-Japanese encephalitis (JE) virus monoclonal antibodies (mAbs) were generated from six fusions against four strains of JE virus: wild-type strains SA14 and G8924 and live attenuated vaccines SA14-5-3 and SA14-14-2 (PDK-9). Most of the mAbs (87%) elicited haemagglutination inhibition activity while only a minority (24%) elicited neutralization. None of the mAbs prepared against SA14-5-3, parent of SA14-14-2, elicited neutralization while the only mAbs prepared against SA14-14-2 that elicited neutralization recognized flavivirus cross-reactive epitopes. In comparison, mAbs raised against wild-type strains showed that a spectrum of epitopes with different specificities, including JE type-specific epitopes, elicited neutralizing activity. Two mAbs, prepared against SA14-5-3 virus, were found to be vaccine-specific and five, prepared against strains SA14 and G8924, were wild-type-specific.

Original languageEnglish (US)
Pages (from-to)329-333
Number of pages5
JournalVaccine
Volume10
Issue number5
DOIs
StatePublished - 1992
Externally publishedYes

Keywords

  • Japanese encephalitis
  • flavivirus
  • monoclonal antibodies
  • vaccine

ASJC Scopus subject areas

  • Molecular Medicine
  • General Immunology and Microbiology
  • General Veterinary
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

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