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Vet Immunol Immunopathol. 1990 Mar;24(3):199-209.

Development of monoclonal antibodies against canine glomerular antigens.

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  • 1Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana 61801.


Monoclonal antibody producing hybridomas were developed by fusing spleen cells from BALB/c mice immunized against canine glomeruli with SP2 myeloma cells. Monoclonal antibody reactivity was tested using an indirect immunofluorescence assay on various normal canine tissues and canine kidney affected with glomerulonephritis. Two of the hybridomas developed (3H2 and 3A5) reacted with glomeruli and not with renal tubules. Antibody produced by hybridoma 3A5 also reacted with smooth muscle of all other tissues tested and 3H2 with lung tissue. Antigens recognized by monoclonal antibodies were studied by assessing their heat stability and susceptibility to proteolysis and neuraminidase digestion. Antigen and antibody molecular weights were determined by using a western blotting technique. Glomerular proteins that reacted with antibody produced by hybridoma 3H2 had molecular weights ranging from approximately 92,500 daltons to 200,000 daltons. Antigens reacting with both monoclonal antibodies were likely protein antigens. It was concluded that monoclonal antibodies would be useful in the study of glomerular antigens in normal dogs and dogs with glomerulonephritis.

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