Human monoclonal anti-idiotypic antibodies bearing the internal image of hemorrhagic fever with renal syndrome virus antigen.

Abstract

A human hybridoma cell line C8 secreting human monoclonal anti-idiotypic antibodies (alpha Id) was established by fusing Epstein-Barr virus transfected peripheral blood lymphocytes from a hemorrhagic fever with renal syndrome (HFRS) patient with interspecific myeloma SHM-D33 cells. The alpha ID human monoclonal antibody (hMAb) could react with anti-HFRSV Ab1 from different species, and the reaction could be inhibited by HFRSV antigen, indicating that anti-idiotype hMAb bears the internal image of HFRSV antigen. Anti-HFRSV antibodies (Ab3) with neutralizing and hemagglutination inhibition activities in BALB/c mice or rabbits induced by the alpha Id h MAb were produced, suggesting that the internal image beared by anti-idiotype antibodies may be related to neutralizing and hemagglutinating epitopes on HFRSV antigen.