Non-GMP plasmid production for transient transfection in bioreactors.

Cytotechnology

Department of Biotechnology, F. Hoffmann-La Roche AG, Pharmaceutical Research - PRBT, Building 66/112A, CH-4070, Basel,

Published: May 2001

We describe a generic plasmid purification process for producing DNA for larger-scale transient transfection. Data on plasmid quality with regard to residual protein, endotoxin content and presence of different plasmid forms is given. The effects of contaminants and plasmid forms on expression levels of TNFRp55 and SEAP are discussed. Transient transfection of serum-free suspension grown mammalian cells represents a suitable approach to provide research quantities of proteins (50-100 mg) within1-2 weeks.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3449703PMC
http://dx.doi.org/10.1023/A:1013148203049DOI Listing

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