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High-efficiency stable gene transfection using chloroquine-treated Chinese hamster ovary cells

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Hasan,  Mazahir T.
Mazahir Hasan Group, Max Planck Institute for Medical Research, Max Planck Society;
Department of Molecular Neurobiology, Max Planck Institute for Medical Research, Max Planck Society;
Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society;

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Zitation

Hasan, M. T., Subbaroyan, R., & Chang, T. (1991). High-efficiency stable gene transfection using chloroquine-treated Chinese hamster ovary cells. Somatic Cell and Molecular Genetics, 17(5), 513-517. doi:10.1007/BF01233175.


Zitierlink: https://hdl.handle.net/21.11116/0000-0000-6303-D
Zusammenfassung
We describe a highly efficient stable gene transfection procedure for Chinese hamster ovary (CHO) cells using a modification of the calcium phosphate-DNA coprecipitation method. We have found that treatment of CHO cells with chloroquine increases the efficiency of gene transfer by up to 20-fold (from approx. 0.01% to approx. 0.2%) when transfection is done using the pSV2-neo plasmid. The optimized transfection procedure requires that CHO cells to be incubated with calcium phosphate-DNA coprecipitate and chloroquine (100 microM) for a total of 16 h. By using high-molecular-weight human genomic DNA as a DNA source for transfection, we show that this procedure is equally efficient for stably transferring a much larger gene, such as the 49-kb human hypoxanthine phosphoribosyltransferase gene.