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Interleukin 4 increases the antibody response against Rubisco in mice
Jörg A Schenk1, Franziska Matyssek, Burkhard Micheel
1University of Potsdam, Institute of Biochemistry and Biology, Department of Biotechnology, D-14476 Golm, Germany. jschenk@mdc-berlin.de
Abstract:
The influence of interleukin 4 (IL-4) on antibody titer in serum and spleen culture supernatant in mice immunized with spinach (Spinacia oleracea L.) Rubisco was investigated. Therefore, we boosted one mouse additionally to the antigen with recombinant mouse IL-4. We found that the Rubisco-specific antibody titer in serum as well as in spleen cell culture supernatant was significantly enhanced in the IL-4 mouse. Most of the antibodies were of the IgG1 subclass. After hybridoma generation, Rubisco-specific antibodies were found in more than 95% of the wells tested compared to about 12% of the control mouse.