Recombinant capripoxviruses expressing proteins of bluetongue virus: evaluation of immune responses and protection in small ruminants

Vaccine. 2007 Sep 17;25(37-38):6774-83. doi: 10.1016/j.vaccine.2007.06.052. Epub 2007 Jul 16.

Abstract

The development of recombinant capripoxviruses for protective immunization of ruminants against bluetongue virus (BTV) infection is described. Sheep (n=11) and goats (n=4) were immunized with BTV recombinant capripoxviruses (BTV-Cpox) individually expressing four different genes encoding two capsid proteins (VP2 and VP7) and two non-structural proteins (NS1, NS3) of BTV serotype 2 (BTV-2). Seroconversion was observed against NS3, VP7 and VP2 in both species and a lymphoproliferation specific to BTV antigens was also demonstrated in goats. Finally, partial protection of sheep challenged 3 weeks after BTV-Cpox administration with a virulent strain of BTV-2, was observed.

Publication types

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

MeSH terms

  • Animals
  • Bluetongue virus / genetics
  • Bluetongue virus / immunology*
  • Bluetongue virus / metabolism*
  • Bluetongue virus / pathogenicity
  • Capripoxvirus / genetics
  • Capripoxvirus / immunology*
  • Capripoxvirus / metabolism*
  • Cells, Cultured
  • Chlorocebus aethiops
  • Gene Expression*
  • Genetic Vectors / genetics
  • Goats
  • Sheep
  • Survival Rate
  • Viral Proteins / genetics
  • Viral Proteins / immunology*
  • Viral Proteins / metabolism*
  • Viral Vaccines / adverse effects
  • Viral Vaccines / immunology

Substances

  • Viral Proteins
  • Viral Vaccines