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Improvement of transfection efficiency by using supercoiled plasmid DNA purified with arginine affinity chromatography

It is well known that the success of gene transfer to cells and subsequent expression is strictly affected by the vector manufacturing process. Several challenges encountered in the gene therapy field have emphasized the need for the development of novel platforms that allow the recovery of gene vectors and enable efficient transfection of cells. The use of plasmid DNA‐based therapeutics relies on procedures that efficiently purify the supercoiled (sc) plasmid isoform. Plasmid DNA (pDNA) purification strategies that use amino acids as immobilized ligands have recently yielded interesting results.