Non-viral vectors in cystic fibrosis gene therapy: recent developments and future prospects.

Pringle IA, Hyde SC, Gill DR

Expert Opinion On Biological Therapy

Expert Opin Biol Ther. 2009 Aug;9(8):991-1003. doi: 10.1517/14712590903055029.

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Gene therapy has been proposed for a wide range of human diseases but few have received the level of attention over such a prolonged period as cystic fibrosis (CF) with over 20 clinical studies undertaken. Following a 10-year interval, clinical trials of an aerosolisable non-viral gene transfer agent have recently been initiated by researchers in the United Kingdom. Here we review the rationale and requirements for effective gene therapy for CF lung disease. The previous non-viral gene therapy trials are discussed and the prospects for the current leading non-viral formulations for CF gene therapy are considered. Factors affecting the selection and design of the plasmid DNA molecule, likely to be of central importance to clinical efficacy, are reviewed and we describe the potential merits of the formulation that has been selected for the forthcoming UK trials.

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