Vaccination of buffaloes with Fasciola gigantica recombinant glutathione S-transferase and fatty acid binding protein

Parasitol Res. 2012 Jan;110(1):419-26. doi: 10.1007/s00436-011-2507-0. Epub 2011 Jul 13.

Abstract

Fasciola gigantica, causative agent of tropical fasciolosis, inflicts substantial economic losses on the livestock industry, affecting severely buffalo productivity in the tropical countries. Very few vaccination trials with different target antigens against F. gigantica infection have been conducted in this host. Present study describes a vaccination trial in buffaloes with F. gigantica recombinant glutathione S-transferase and fatty acid binding protein. The two recombinant proteins were expressed in Escherichia coli and evaluated for their immunoprophylactic potential in buffalo calves, using montanide 70 M-VG, a mineral oil-based adjuvant, for delivering the antigens. Buffalo calves were distributed in three groups, with group I, II and III calves immunized with recombinant glutathione S-transferase, fatty acid binding protein and a cocktail of these two antigens, respectively. Immunization of the calves evoked a mixed IgG1 and IgG2 antibody response. Present vaccination trial in these animals achieved a maximum protection level of 35%, when the two antigens were used in combination. Eosinophils were measured in both immunized and non-immunized challenge control animals, which showed a steady increase in their count in response to immunization with both the antigens and infection with F. gigantica, respectively.

Publication types

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

MeSH terms

  • Adjuvants, Immunologic / administration & dosage
  • Animals
  • Antibodies, Helminth / blood
  • Antigens, Helminth / administration & dosage
  • Antigens, Helminth / immunology*
  • Buffaloes
  • Eosinophils / immunology
  • Escherichia coli / genetics
  • Fascioliasis / prevention & control
  • Fascioliasis / veterinary*
  • Fatty Acid-Binding Proteins / administration & dosage
  • Fatty Acid-Binding Proteins / immunology*
  • Glutathione Transferase / administration & dosage
  • Glutathione Transferase / immunology*
  • Immunoglobulin G / blood
  • Leukocyte Count
  • Recombinant Proteins / genetics
  • Recombinant Proteins / immunology
  • Vaccination / methods*
  • Vaccines, Subunit / administration & dosage
  • Vaccines, Subunit / immunology
  • Vaccines, Synthetic / administration & dosage
  • Vaccines, Synthetic / immunology

Substances

  • Adjuvants, Immunologic
  • Antibodies, Helminth
  • Antigens, Helminth
  • Fatty Acid-Binding Proteins
  • Immunoglobulin G
  • Recombinant Proteins
  • Vaccines, Subunit
  • Vaccines, Synthetic
  • Glutathione Transferase