Gene Transfer: How Can the Biological Barriers Be Overcome?

Gene Transfer: How Can the Biological Barriers Be Overcome? Physical methods represent a promising approach for the safe delivery of therapeutic plasmid DNA in genetic and acquired human diseases. However, their development in clinics is limited by their low efficacy. At the cellular level, efficient gene transfer is dependent on several factors including extracellular matrix, plasmid DNA uptake and nucleocytoplasmic transport. We review the main barriers that plasmid DNA encounters from the extracellular environment toward the interior of the cell and the different strategies developed to overcome these biological barriers. Diffusional and metabolic fences of the extracellular matrix and the cytoplasm affect plasmid DNA uptake. These barriers reduce the number of intact plasmids that reach the nucleus. Nuclear uptake of plasmid DNA further requires either an increase of nuclear permeability or an active nuclear transport via the nuclear pore. A better understanding of the cellular and molecular bases of the physical gene-transfer process may provide strategies to overcome those obstacles that highly limit the efficiency and use of gene-delivery methods. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The Journal of Membrane Biology Springer Journals

Gene Transfer: How Can the Biological Barriers Be Overcome?

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Publisher
Springer-Verlag
Copyright
Copyright © 2010 by Springer Science+Business Media, LLC
Subject
Life Sciences; Human Physiology ; Biochemistry, general
ISSN
0022-2631
eISSN
1432-1424
D.O.I.
10.1007/s00232-010-9275-0
Publisher site
See Article on Publisher Site

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