Protection of mice and swine from pseudorabies virus-induced mortality by administration of pseudorabies virus-specific mouse monoclonal antibodies
1988
Marchioli, C. | Yancey, R.J. Jr | Timmins, J.G. | Post, L.E. | Young, B.R. | Povendo, D.A.
Hybridomas were selected for secretion of monoclonal antibodies directed against pseudorabies virus (PRV) glycoproteins. Each monoclonal antibody was capable of neutralizing PRV in vitro in the presence of complement. This panel of antibodies was used in passive immunization studies to protect mice and swine from PRV-induced mortality. The most protective antibody in mice was 3A4, specific for PRV glycoprotein gp50, which afforded as high as 100% protection. Although antibody 3A4 was partially protective in swine, antibody 3D11, which is specific for PRV glycoprotein gIII, afforded greater protection-83% protection when ascitic fluid was used and 100% protection when immunoglobulin concentrated from cell cultures was used at a dose of 150 mg/pig. These studies demonstrated that monoclonal antibodies may be useful for short-term prophylaxis against PRV-induced disease and that antibody directed against either PRV gylcoprotein gIII or gp50 is sufficient to protect animals from PRV-induced mortality.
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