Evaluation of modified vaccinia virus Ankara expressing VP2 protein of infectious bursal disease virus as an immunogen in chickens

J Vet Sci. 2012 Jun;13(2):199-201. doi: 10.4142/jvs.2012.13.2.199.

Abstract

A recombinant modified vaccinia Ankara (MVA) virus expressing mature viral protein 2 (VP2) of the infectious bursal disease virus (IBDV) was constructed to develop MVA-based vaccines for poultry. We demonstrated that this recombinant virus was able to induce a specific immune response by observing the production of anti-IBDV-seroneutralizing antibodies in specific pathogen-free chickens. Besides, as the epitopes of VP2 responsible to induce IBDV-neutralizing antibodies are discontinuous, our results suggest that VP2 protein expressed from MVA-VP2 maintained the correct conformational structure. To our knowledge, this is the first report on the usefulness of MVA-based vectors for developing recombinant vaccines for poultry.

Publication types

  • Controlled Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibodies, Viral
  • Birnaviridae Infections / prevention & control
  • Birnaviridae Infections / veterinary*
  • Cells, Cultured
  • Chick Embryo
  • Chickens
  • Fibroblasts / metabolism
  • Infectious bursal disease virus / immunology*
  • Poultry Diseases / prevention & control*
  • Poultry Diseases / virology
  • Specific Pathogen-Free Organisms
  • Vaccinia virus / genetics*
  • Vaccinia virus / immunology
  • Vaccinia virus / metabolism
  • Viral Structural Proteins / genetics
  • Viral Structural Proteins / immunology*
  • Viral Structural Proteins / metabolism
  • Viral Vaccines / immunology*

Substances

  • Antibodies, Viral
  • VP2 protein, infectious bursal disease virus
  • Viral Structural Proteins
  • Viral Vaccines