Abstract
CHO cells expressing a human IgG or a TNFR:Fc fusion protein were generated either by piggybac (PB) transposon-mediated gene transfer or by conventional transfection techniques. Polyclonal populations were cultivated at small scale as batch cultures and analyzed for transgene expression over time. Afterwards, clonal cell lines were recovered by limiting dilution. When compared to controls, cell populations generated by transposition showed improved recombinant protein yield and stability. In addition, the frequency of high-producer cell lines was up to 4-fold higher when cells were sorted from cell pools generated by transposition. Analysis of the specific productivity of selected clones confirmed the improved productivity of transposed cell lines, which also correlated with an increased number of integrated transgene copies. The results indicated that PB-transposition is a valuable tool to generate cell clones with stable and enhanced transgene expression at high frequency, and thus sensibly reducing screening, development timelines, and costs.
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References
Ding, S., et al. (2005) Efficient transposition of the piggyBac (PB) transposon in mammalian cells and mice. Cell. 122(3):473–483.
Livak, K.J. and T.D. Schmittgen. (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) method. Methods. 25(4):402–408.
Matasci, M., et al. (2008) Recombinant therapeutic protein production in cultivated mammalian cells: current status and future prospects. Drug Disco Today: Technol. 5(2–3): e37–e42.
Muller, N., et al. (2007) Scalable transient gene expression in Chinese hamster ovary cells in instrumented and non-instrumented cultivation systems. Biotechnol Lett. 29(5):703–711.
Pick, H.M., et al. (2002) Balancing GFP reporter plasmid quantity in large-scale transient transfections for recombinant anti-human Rhesus-D IgG1 synthesis. Biotechnol Bioeng. 79(6):595–601.
Renard, J.M., et al. (1988) Evidence that monoclonal antibody production kinetics is related to the integral of the viable cells curve in batch systems. Biotechnol Lett. 10(2):91–96.
Wu, S.C., et al. (2006) PiggyBac is a flexible and highly active transposon as compared to sleeping beauty, Tol2, and Mos1 in mammalian cells. Proc Natl Acad Sci USA. 103(41):15008–15013.
Wurm, F.M. (2004) Production of recombinant protein therapeutics in cultivated mammalian cells. Nat Biotechnol. 22(11):1393–1398.
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Matasci, M., Bachmann, V., Delegrange, F., Chenuet, S., Hacker, D.L., Wurm, F.M. (2012). Generation of High-Producing CHO Cell Lines by Piggybac Transposition. In: Jenkins, N., Barron, N., Alves, P. (eds) Proceedings of the 21st Annual Meeting of the European Society for Animal Cell Technology (ESACT), Dublin, Ireland, June 7-10, 2009. ESACT Proceedings, vol 5. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0884-6_22
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DOI: https://doi.org/10.1007/978-94-007-0884-6_22
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