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Madiha Derouazi

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Related publications (8)

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Gene transfer methods for producing recombinant cell lines are often not very efficient. One reason is that the recombinant DNA is delivered into the cell cytoplasm and only a small fraction reaches the nucleus. This chapter describes a method for microinj ...

Humana Press2009

Calcium phosphate transfection generates mammalian recombinant cell lines with higher specific productivity than polyfection

Florian Maria Wurm, David Hacker, Madiha Derouazi, Sébastien Chenuet, Nicolas Jaccard

Transfection with polyethylenimine (PEI) was evaluated as a method for the generation of recombinant Chinese hamster ovary (CHO DG44) cell lines by direct comparison with calcium phosphate-DNA coprecipitation (CaPO4) using both green fluorescent protein (G ...

2008

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Cell expansion, gene transfer and protein production were all executed with a single serum-free, animal protein-free commercial medium designed for suspension-adapted Chinese hamster ovary cells (CHO DG44). This is a most important process to consider for ...

Kluwer Academic Publishers, Springer2007

Genetic characterization of CHO production host DG44 and derivative recombinant cell lines

Florian Maria Wurm, David Hacker, Madiha Derouazi, Martin Bertschinger

The dihydrofolate reductase-deficient Chinese hamster ovary (CHO) cell line DG44 is the dominant mammalian host for recombinant protein manufacturing, in large part because of the availability of a well-characterized genetic selection and amplification sys ...

2006

Generation of recombinant Chinese hamster ovary cell lines by microinjection

Florian Maria Wurm, Madiha Derouazi, Martin Jordan, Philippe Pierre Girard

Microinjection is a gene transfer technique enabling partial control of plasmid delivery into the nucleus or cytoplasm of cultured animal cells. Here this method was used to establish various recombinant mammalian cell lines. The injection volume was estim ...

Kluwer Academic Publishers, Springer2006

Establishment of recombinant mammalian cell lines

Madiha Derouazi

Recombinant proteins are gaining in importance for therapeutic applications. The proteins are expressed in stable cell lines, within which recombinant DNA has incorporated into the host cells genome. Identification and isolation of extremely high producers ...

EPFL2005

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To date, methods for large-scale transient gene expression (TGE) in cultivated mammalian cells have focused on two transfection vehicles: polyethylenimine (PEI) and calcium phosphate (CaPi). Both have been shown to result in high transfection efficiencies ...

2004

100-liter transient transfection

Florian Maria Wurm, Madiha Derouazi, Martin Jordan, Philippe Pierre Girard

This is the first report of two successful 100 l scale transienttransfections in a standard stirred bioreactor. More than half a gram of a monoclonal antibody (IgG) were produced in less than 10 days using a technology called large-scale transient gene exp ...

2002