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A serum substitute for fed-batch culturing of hybridoma cells.


ABSTRACT: We developed a substitute for serum to produce fed-batch cultures of hybridoma cells in serum-free medium and confirmed that the cells could be successfully cultivated this way. Our substitute consisted of 12 components. The specific production rates of lactate and ammonia, which are harmful byproducts from the cells, were significantly reduced compared with a conventional serum-containing batch culture. This reduction led to a higher cell concentration and a longer production lifetime. As a result, the final concentration of monoclonal antibody was 400 mg/L, or five times greater than that in the conventional serum-containing batch culture. The developed substitute is expected to enable fed-batch cultivation in a serum-free condition.

SUBMITTER: Shibuya K 

PROVIDER: S-EPMC2553663 | biostudies-other | 2008 Jun

REPOSITORIES: biostudies-other

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