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Lipid Nanoparticles as Vehicles for Macromolecules: Nucleic Acids and Peptides

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Traditional drug delivery systems are not efficient for peptide, protein and nucleic acid (plasmid DNA, oligonucleotides or short interfering RNA) delivery, thereby LNP have been exploited as potential delivery and targeting systems of these molecules. Since their discovery in the early 90's several research groups have focused their efforts on the improvement of this kind of nanocarriers in terms of effectiveness and safety. This review features the recent and most relevant patents related to these topics, with particular attention to targeting and protection from environmental agents. Moreover, in the case of nucleic acids strategies to improve transfection mediated by lipid nanoparticles (entrance to the cells, intracellular distribution or going through nuclear envelope) will be assessed. Regarding peptides and proteins, enhancement of encapsulation efficiency and absorption through mucoses are the main studied drawbacks. Finally, this work also includes a summary of the existing patents about the use of LNP as immune response adjuvants by using either plasmid DNA or proteins.

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Keywords: DNA; Transfection; VACCINE ADJUVANTS; dextran; gene therapy; lipid drug conjugates; nanostructure lipid carriers; peptides; proteins; siRNA; solid lipid nanoparticles

Document Type: Research Article

Publication date: 2011-09-01

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  • Recent Patents on Drug Delivery and Formulation publishes review articles by experts on recent patents on drug delivery and formulation. A selection of important and recent patents on drug delivery and formulation is also included in the journal. The journal is essential reading for all researchers involved in the fields of drug delivery and formulation.
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