Abstract
Several serum-free media have been developed and are successfully used at present for the cultivation of various recombinant eukaryotic cell lines. Therapeutic recombinant IgA antibodies have recently been increasingly used along with numerous IgG1 isotype antibodies. Therefore, it became necessary to improve the growth characteristics, metabolism, and productivity of cell cultures producing these antibodies. The stimulating effect of a complex supplement containing Zn salts and FGF-2 on cell cultivation on basal media, DMEM and IMDM, was revealed in this work. The addition of dextran sulfate sodium salt and iron citrate to the basal medium was accompanied by improved productivity of stable IgG- and IgA-producing cell lines, as well as the homogeneity and density of cell cultures, which is most important in IgA-antibody production.
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