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Correlation Between Enhancing Effect of Sodium Butyrate on Specific Productivity and mRNA Transcription Level in Recombinant Chinese Hamster Ovary Cells Producing Antibody  

Jeon, Min-Kyoung (Department of Biological Sciences, Korea Advanced Institute of Science and Technology)
Lee, Gyun-Min (Department of Biological Sciences, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of Microbiology and Biotechnology / v.17, no.6, 2007 , pp. 1036-1040 More about this Journal
Abstract
Sodium butyrate (NaBu) has been used to enhance protein expression levels in mammalian cell culture. To determine the clonal variability of recombinant Chinese hamster ovary (rCHO) cells in response to NaBu addition regarding specific antibody productivity $(q_{Ab})$, three rCHO clones were subjected to different concentrations of NaBu. For all three clones, NaBu addition inhibited cell growth and decreased cell viability in a dose-dependent manner. On the other hand, the enhancing effect of NaBu on $q_{Ab}$ varied significantly among the clones. NaBu addition enhanced the antibody production of only one clone. RT-PCR analysis revealed that the changes in $q_{Ab}$ correlated linearly with those of the mRNA transcription level. Thus, it was concluded that the different enhancing effects of NaBu on protein expression in rCHO cell clones resulted from their different mRNA transcription levels.
Keywords
Chinese hamster ovary cells; sodium butyrate; specific productivity; transcription level;
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Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By Web Of Science : 5  (Related Records In Web of Science)
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