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A strategy for production of monoclonal antibodies to Echinococcus granulosus antigen 5 and antigen B
D Liu1, M D Rickard, M W Lightowlers
1University of Melbourne, Veterinary Clinical Centre, Werribee, Victoria, Australia.
Serum antibody responses to sheep hydatid cyst fluid (SHCF) and a purified Antigen 5 (Ag5) were examined in ELISA, immunoelectrophoresis (IEP) and immunoprecipitation (IP) to facilitate production of monoclonal antibodies (MAb) to E. granulosus Ag5 and Antigen B (AgB). Although sera from mice immunized with SHCF contained antibodies of various classes, the fusions using these donor mice resulted in mainly anti-AgB MAb, possibly due to the preferential selection of MAb to AgB by the SHCF-based ELISA screening system. Donor mice immunized with Ag5 also produced several classes of antibodies, and the resultant fusions enabled selection of IgG MAb to Ag5.
Serum antibody responses to sheep hydatid cyst fluid (SHCF) and a purified Antigen 5 (Ag5) were examined in ELISA, immunoelectrophoresis (IEP) and immunoprecipitation (IP) to facilitate production of monoclonal antibodies (MAb) to E. granulosus Ag5 and Antigen B (AgB). Although sera from mice immunized with SHCF contained antibodies of various classes, the fusions using these donor mice resulted in mainly anti-AgB MAb, possibly due to the preferential selection of MAb to AgB by the SHCF-based ELISA screening system. Donor mice immunized with Ag5 also produced several classes of antibodies, and the resultant fusions enabled selection of IgG MAb to Ag5.