Human monoclonal anti-keyhole limpet hemocyanin antibody-secreting hybridoma produced from peripheral blood B lymphocytes of a keyhole limpet hemocyanin-immune individual.

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Abstract
A human IgMk monoclonal antibody, 2F7, of predetermined specificity, has been produced by the fusion of human peripheral blood lymphocytes with the nonsecreting mouse myeloma line SP-1. The heterohybridoma has remained stable for over 8 mo, with culture supernatants containing up to 30 micrograms/ml of specific IgM. The antibody has been shown to be capable of inducing a blastogenic response in the absence of antigen in the peripheral blood lymphocytes of normal subjects immune to the antigen. The ability to choose an antigen, immunize a human subject to that antigen, and then use the peripheral blood lymphocytes from that subject to produce antigen-specific human monoclonal antibodies should be of great value in a wide variety of investigative, diagnostic, and therapeutic endeavors.U