Abstract
The effect of serum type and concentration on recombinant protein expression in vaccinia virus infected HeLa S3 cells was studied in both static and suspension culture. A model heterologous protein,β-galactosidase (β-gal), was used. Calf and horse sera in the range of 0.5–10%(v/v) were investigated. In static culture, the calf serum concentration did not show any significant influence on the β-gal production which was almost completed within 24h postinfection (pi). Higher horse serum concentration, on the other hand, resulted in higher β-gal concentration which continued to increase until 48 h pi. Total β-gal concentrations in 0.5% calf serum at 24 h pi and 10% horse serum at 48 h pi were 2.2±0.7 and 2.2±0.1 IU/ml, respectively. In suspension culture, both sera showed their respective effects on the β-gal production similar to those observed in static culture, indicating that the cultivation method had little influence on β-gal production. Accordingly, the use of 0.5% calf serum after virus infection in recommended for economical β-gal production.
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Jun, S.C., Lee, G.M., Chang, S.H. et al. Effect of serum type and concentration on the expression ofβ-galactosidase in recombinant vaccinia virus infected HeLa S3 cells. Cytotechnology 19, 153–159 (1995). https://doi.org/10.1007/BF00749770
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DOI: https://doi.org/10.1007/BF00749770