Virology: Induction of a Th-1-biased IgG subclass response against equine herpesvirus type 1 in horses previously infected with type 4 virus

  • BANNAI Hiroshi
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • TSUJIMURA Koji
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • KONDO Takashi
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • NEMOTO Manabu
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • YAMANAKA Takashi
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • SUGIURA Takeo
    Epizootic Research Center, Equine Research Institute, Japan Racing Association
  • MAEDA Ken
    Department of Veterinary Microbiology, Faculty of Agriculture, Yamaguchi University
  • MATSUMURA Tomio
    Epizootic Research Center, Equine Research Institute, Japan Racing Association

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タイトル別名
  • Induction of a Th-1-Biased IgG Subclass Response against Equine Herpesvirus Type 1 in Horses Previously Infected with Type 4 Virus

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An immunoglobulin G (IgG) subclass response against equine herpesvirus type 1 (EHV-1) infection was investigated in horses that were naïve to EHV-1/4 and those that had previously been exposed to EHV-4. The IgG subclass response was determined by an ELISA using EHV-1-specific recombinant gG protein as an antigen. In most horses naïve to EHV-1/4, IgGa, IgGb, and IgG(T) were induced after experimental infection with EHV-1. In contrast, a subclass response dominated by IgGa and IgGb, with no apparent increase in IgG(T), was observed after EHV-1 infection in horses previously infected with EHV-4. Horses naturally infected with EHV-1 in the field showed similar responses. These results indicated that pre-infection with EHV-4 induced a Th-1-biased IgG subclass response against subsequent EHV-1 infection.<br>

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