期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 385, 期 1-2, 页码 157-162出版社
ELSEVIER
DOI: 10.1016/j.ijpharm.2009.10.020
关键词
Gene therapy; Solid lipid nanoparticles; In vitro transfection; In vivo transfection; Non-viral vectors
资金
- Spanish Ministry of Education and Science [AP2003-4780]
- Departamento de Educacion, Universidades e Investigacion del Gobierno Vasco [IT-407-07]
- Neurosciences Department
Naked plasmid DNA is a powerful tool for gene therapy, but it is rapidly eliminated from the circulation after intravenous administration. Therefore, the development of optimized DNA delivery systems is necessary for its successful clinical use Solid lipid nanoparticles (SLNs) have demonstrated transfection capacity in vitro, but their application for gene delivery has not been conveniently investigated in vivo. We aimed to evaluate the capacity of SLN-DNA vectors to transfect in vivo after intravenous administration to mice The SLNs, composed of Precirol (R) ATO 5, DOTAP and Tween 80 were complexed with the plasmid pCMS-EGFP which encodes the enhanced green fluorescent protein (EGFP) The resulting systems were characterized in vitro showing a mean particle size of 276 rim, superficial charge of +28 mV, the ability to protect the plasmid and transfection capacity in culture cells The intravenous administration in mice led to transfection in hepatic tissue and spleen. Protein expression was detected from the third day after administration, and it was maintained for at least 1 week. This work shows for the first time the capacity of SLN-DNA vectors to induce the expression of a foreign protein after intravenous administration. supporting the potential of SLNs for gene therapy (C) 2009 Elsevier B V. All rights reserved.
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