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Development of serum-free medium supplemented with hydrolysates for the production of therapeutic antibodies in CHO cell cultures using design of experiments

  • Biotechnological Products and Process Engineering
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Abstract

An efficient method of formulating serum-free medium (SFM) for production of therapeutic antibodies by recombinant CHO (rCHO) cells was developed using two rCHO cell lines producing a therapeutic antibody. In this method, ten kinds of SFM were prepared by supplementing the basal SFM with statistically designed mixtures (total 5 g L−1) of three non-animal-derived hydrolysates: yeastolate, soy hydrolysate, and wheat gluten hydrolysate. When the two rCHO cell lines were cultivated, the mixtures of soy hydrolysate and wheat gluten hydrolysate showed a positive effect on cell growth. On the other hand, the mixtures including a high portion of yeastolate significantly enhanced specific antibody productivity. To reconstitute the mixture ratios of the three hydrolysates for high growth and antibody production, the effect of each medium was analyzed by the statistical program Design-Expert®. The resulting medium gave a 1.9–3.3-fold increase in the maximum antibody concentration, compared to the basal SFM. Taken together, the supplementation of hydrolysates to the basal SFM with the help of statistical analysis is an efficient means of developing SFM for therapeutic antibody production by rCHO cells.

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Acknowledgment

This research was supported in part by the grant from the Ministry of Knowledge Economy, Korea.

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Authors and Affiliations

  1. Department of Biological Sciences, KAIST, 373-1 Kusong-Dong, Yusong-Gu, Daejeon, 305-701, South Korea

    Sung Hyun Kim & Gyun Min Lee

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  1. Sung Hyun Kim
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  2. Gyun Min Lee
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Correspondence to Gyun Min Lee.

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Kim, S.H., Lee, G.M. Development of serum-free medium supplemented with hydrolysates for the production of therapeutic antibodies in CHO cell cultures using design of experiments. Appl Microbiol Biotechnol 83, 639–648 (2009). https://doi.org/10.1007/s00253-009-1903-1

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  • DOI: https://doi.org/10.1007/s00253-009-1903-1

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