Cell line/type | CHO (Chinese Hamster Ovary) cell line |
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Species | Hamster |
Animal free | Unspecified |
Product | CHO-S-SFM II Damiani et al. 2013 |
Damiani, R., Almeida, B. E., Oliveira, J. E., Bartolini, P., & Ribela, M. T. C. (2013). Enhancement of human thyrotropin synthesis by sodium butyrate addition to serum-free CHO cell culture. Applied biochemistry and biotechnology, 171(7), 1658-1672. In this study, the influence of sodium butyrate (NaBu) on the synthesis of recombinant human thyrotropin (r-hTSH) by CHO cells was investigated. A volumetric productivity of ~10 mug hTSH/mL was repeatedly obtained, with a 3.3-fold increase over a control culture carried out in the absence of NaBu. Since NaBu can induce CHO cell apoptosis and cell growth arrest, the increase in specific productivity was even higher, i.e., ca. 5-fold. Analysis of the N-glycan composition of r-hTSH obtained with the addition of NaBu to the culture medium showed an approximately 12 % increase in the amount of sialic acid, as well as in total carbohydrate, partly due to the increase in the site occupancy from 2.77 to 2.93 glycans per mole of hTSH. The two hormone preparations were characterized by N-glycan structural analysis, which showed that NaBu increased the bi-antennary structures by ca. 13 % while decreasing the tri-antennary structures by approximately the same amount. The in vivo biological activity and pharmacokinetic behavior (clearance) were found to be similar for the two hormone preparations. The cells were cultured in CHO-S-SFM II supplemented with different components as specified in the Materials and Methods, under the heading; Cell Cultivation. CHO-S-SFM II is a commercially available product. The precise formulation is proprietary. https://link.springer.com/content/pdf/10.1007%2Fs12010-013-0467-9.pdf |
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Source | Literature - modified commercial product |
Chemically defined > Unspecified | Unspecified |
Contains phenol red > Yes | Yes |
Antibiotics free > Yes | Yes |