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Detection of specific anti-hapten antibody-producing hybridoma cells in tissue sections of spleen and liver by hapten-enzyme conjugates using an immunoenzyme approach.

A method is presented for the detection of hybridoma cell growth in vivo by making use of the specific antigen (hapten) recognition properties of the produced monoclonal antibodies. Horseradish peroxidase (HRP)-labeled antigen was used for demonstration of intracellular specific antibodies in hybridoma cells. It appeared that intravenously injected anti-penicilloyl-producing hybridoma cells developed mainly in the red pulp of the spleen; to a lesser extent they were found in the liver.