Journal
METHODS
Volume 31, Issue 3, Pages 255-262Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/S1046-2023(03)00138-5
Keywords
DNA vaccine; microemulsion; beta-galactosidase; Mannan
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Genetic immunization strategies have largely focused on the use of naked plasmid DNA or the gene gun. However, there remains a clear need to further improve the efficiency and/or cost of potential DNA vaccines. The theoretical basis of our research is to rationally design genetic immunization methodologies for nanoparticle-based delivery systems of plasmid DNA, perhaps in combination with already commercially available needle-free devices, such as the Biojector 2000. These methodologies may both reduce the dose of pDNA required and enhance the breadth and depth of protective immune responses (i.e., humoral and cellular). The purpose of this article is to provide detailed experimental methods to (1) engineer and characterize pDNA-coated cationic nanoparticles (<100 nm) directly from oil-in-water microemulsion precursors and (2) enhance both the breadth and depth of immune responses after immunization of mice with pDNA-coated nanoparticles by different routes of administration, including intradermal, using a needle-free jet injection device. (C) 2003 Elsevier Science (USA). All rights reserved.
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