Abstract
We have developed a gel entrapment process for the entrapment and growth of mu-rine hybridoma cells. This entrapment process takes advantage of the calcium-mediated gelation of sodium alginate. Mu-rine hybridoma cells entrapped within calcium alginate gel microbeads were shown to proliferate to high cell density while maintaining high cell viability. The rate of monoclonal antibody (Mab) production by calcium alginate gel-entrapped murine hybridoma cells was identical to control suspension cultures indicating that alginate gels do not effect the production or restrict diffusion of murine IgG into the medium. Gel-entrapped hybridoma cells cultured in 1.0L bioreactors under dissolved oxygen control grew to tenfold higher viable cell densities than cells grown in conventional suspension culture. The resultant concentration of Mab in medium from cultures of gel-entrapped hybridoma cells was concomitantly increased by a factor of ten.
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Sinacore, M., Creswick, B. & Buehler, R. Entrapment and Growth of Murine Hybridoma Cells in Calcium Alginate Gel Microbeads. Nat Biotechnol 7, 1275–1279 (1989). https://doi.org/10.1038/nbt1289-1275
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DOI: https://doi.org/10.1038/nbt1289-1275