A G-protein-coupled chemokine receptor: A putative insertion site for a multi-pathogen recombinant capripoxvirus vaccine strategy

J Immunol Methods. 2017 Sep:448:112-115. doi: 10.1016/j.jim.2017.05.007. Epub 2017 May 31.

Abstract

Capripoxviruses (CaPVs) have been shown to be ideal viral vectors for the development of recombinant multivalent vaccines to enable delivery of immunogenic genes from ruminant pathogens. So far, the viral thymidine kinase (TK) gene is the only gene used to generate recombinants. A putative non-essential gene encoding a G-protein-coupled chemokine receptor subfamily homologue (GPCR) was targeted as an additional insertion site. Peste des petits ruminants (PPR) was chosen as a disease model. A new recombinant CaPV expressing the viral attachment hemagglutinin (H) of the PPR virus (PPRV) in the GPCR insertion site (rKS1-HPPR-GPCR) was generated in the backbone North African isolate KS1 strain of lumpy skin disease virus (LSDV). Comparison with the recombinant CaPV expressing the H of PPRV in the TK gene (rKS1-HPPR-TK) shown to induce protection against both PPR and LSD in both sheep and goats was assessed. The suitability of the GPCR gene to be a putative additional insertion site in the CaPV genome is evaluated and discussed.

Keywords: Capripoxvirus; Goats; New insertion site; Vaccine.

MeSH terms

  • Animals
  • Antibodies, Viral / blood
  • Capripoxvirus / genetics*
  • Cattle
  • Chlorocebus aethiops
  • Genetic Vectors*
  • Goats
  • Hemagglutinins, Viral / administration & dosage
  • Hemagglutinins, Viral / genetics
  • Hemagglutinins, Viral / immunology
  • Injections, Subcutaneous
  • Lumpy Skin Disease / genetics
  • Lumpy Skin Disease / immunology
  • Lumpy Skin Disease / prevention & control*
  • Lumpy Skin Disease / virology
  • Lumpy skin disease virus / genetics*
  • Lumpy skin disease virus / immunology
  • Mutagenesis, Insertional*
  • Peste-des-Petits-Ruminants / genetics
  • Peste-des-Petits-Ruminants / immunology
  • Peste-des-Petits-Ruminants / prevention & control*
  • Peste-des-Petits-Ruminants / virology
  • Peste-des-petits-ruminants virus / genetics*
  • Peste-des-petits-ruminants virus / immunology
  • Receptors, Chemokine / administration & dosage
  • Receptors, Chemokine / genetics*
  • Receptors, Chemokine / immunology
  • Receptors, G-Protein-Coupled / administration & dosage
  • Receptors, G-Protein-Coupled / genetics*
  • Receptors, G-Protein-Coupled / immunology
  • Vaccines, Synthetic / administration & dosage
  • Vaccines, Synthetic / genetics
  • Vaccines, Synthetic / immunology
  • Vero Cells
  • Viral Vaccines / administration & dosage
  • Viral Vaccines / genetics*
  • Viral Vaccines / immunology
  • Virus Cultivation

Substances

  • Antibodies, Viral
  • Hemagglutinins, Viral
  • Receptors, Chemokine
  • Receptors, G-Protein-Coupled
  • Vaccines, Synthetic
  • Viral Vaccines