Abstract
Most bio-industrial mammalian cells are cultured in serum-free media to achieve advantages, such as batch consistency, suspended growth, and simplified purification. The successful development of a serum-free medium could contribute to a reduction in the experimental variation, enhance cell productivity, and facilitate biopharmaceuticals production using the cell culture process. Commercial serum-free media are also becoming more and more popular. However, the cell line secrets its own recombinant product and has special nutritional requirements. How can the composition of the proprietary medium be adjusted to support the specific cell’s metabolism and recombinant protein? This article uses statistical strategies to modify the commercial medium. A design of experiments is adopted to optimize the medium composition for the hybridoma cell in a serum-free condition. The supplements of peptone, ferric citrate, and trace elements were chosen to study their impact on hybridoma growth and antibody production using the response surface methodology. The stimulatory effect of the developed formulation on hybridoma growth was confirmed by the steepest ascent path. The optimal medium stimulated the hybridoma growth and antibody production in three diverse systems: a static plate, an agitated spinner flask, and a hollow fiber reactor. The cells in the developed serum-free medium had a better antibody production as compared to that in the commercial medium in the hollow fiber reactor. Our results demonstrated that the facile optimization for medium and antibody production was successfully accomplished in the hybridoma cells.
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Acknowledgements
We express gratitude to Ministry of Science and Technology (MOST 106-2221-E-182-050), Chang Gung University (BMRP 758) and Chang Gung Memorial Hospital (CMRPD2G0282, 2H0071) for funding and supporting this research. We would also like to thank the valuable suggestion of bioreactor operation from Frank R. H. Wang, United BioPharma Inc., Hsinchu, Taiwan.
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Liu, CH., Liu, YX. & Wu, WC. Facile development of medium optimization for antibody production: implementation in spinner flask and hollow fiber reactor. Cytotechnology 70, 1631–1642 (2018). https://doi.org/10.1007/s10616-018-0255-z
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DOI: https://doi.org/10.1007/s10616-018-0255-z