Bovine monoclonal anti-idiotypes induce antibodies specific for a synthetic peptide bearing a neutralizing epitope of bovine herpesvirus 1 glycoprotein gI (gB).
Bovine monoclonal anti-Id mimicking a neutralizing epitope of bovine herpesvirus-1 (BHV-1) glycoprotein gI were developed. An epitope present on the 74K subunit of gI identified by a murine mAb 1E11 was selected for this study. Bovine lymphocytes from the prefemoral lymph node of a heifer immunized with mAb 1E11 were fused with SP-2/0, a nonsecreting murine cell-line. Two bovine x murine hybridomas secreting bovine monoclonal anti-Id specific for the Id of 1E11 were stabilized. These anti-Id inhibited the binding of 1E11 to purified glycoprotein gI in a dose-dependent fashion. Naive mice immunized with the anti-Id produced anti-anti-Id (Ab3) that reacted with BHV-1 glycoprotein gI in a RIA, and neutralized BHV-1 infection in vitro. The Ab3 also showed reactivity to the 74K subunit of authentic gI glycoprotein in a Western blot analysis, and to the synthetic peptide bearing the 1E11 epitope in a RIA. These results substantiate the presence of the population of anti-Ab2 that functionally resemble antibodies specific for the immunizing Ag BHV-1 in Ab3, and demonstrate the ability of these anti-Id to elicit BHV-1-specific antibody response.
Hariharan
K
K
Department of Veterinary Science, University of Nebraska, Lincoln 68583.
Hariharan
M J
MJ
Zamb
T J
TJ
Krueger
R J
RJ
Srikumaran
S
S
D000818:Animals; D000911:Antibodies, Monoclonal / Q000096:biosynthesis / Q000276:immunology*; D000914:Antibodies, Viral / Q000096:biosynthesis*; D002417:Cattle; D000939:Epitopes; D005260:Female; D007242:Herpesvirus 1, Bovine / Q000276:immunology*; D007130:Immunoglobulin Idiotypes / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C; D010446:Peptide Fragments / Q000276:immunology*; D014764:Viral Proteins / Q000276:immunology*
D000911:Antibodies, Monoclonal; D000914:Antibodies, Viral; D000939:Epitopes; D007130:Immunoglobulin Idiotypes; D010446:Peptide Fragments; D014764:Viral Proteins; C046998:bovine herpesvirus type-1 glycoproteins