Abstract
Plasmids expressing the V antigen of Yersinia pestis or the E2 glycoprotein of Venezuelan Equine Encephalitis (VEE) virus were used to vaccinate mice by intra-dermal or intra-muscular injection, or by particle-mediated bombardment using the Helios gene gun. After two immunizations, groups of mice which had received 4 microg doses of plasmid DNA using the gene gun had IgG levels which were higher than in other groups manually immunised with 12-fold more plasmid DNA. The immunoglobulin isotype profile was predominantly IgG1 following inoculation with either plasmid. Our results indicate that gene gun mediated vaccination can be used to increase the magnitude of the immune response to both bacterial and viral antigens expressed by plasmid DNA.
MeSH terms
-
Animals
-
Antigens, Bacterial / genetics
-
Antigens, Bacterial / immunology*
-
Bacterial Vaccines / administration & dosage*
-
Bacterial Vaccines / genetics
-
Bacterial Vaccines / immunology
-
Biolistics / methods*
-
Child, Preschool
-
DNA / administration & dosage
-
DNA / genetics
-
Encephalitis Virus, Venezuelan Equine / genetics
-
Encephalitis Virus, Venezuelan Equine / immunology*
-
Female
-
Gold
-
Humans
-
Injections, Intradermal
-
Injections, Intramuscular
-
Mice
-
Mice, Inbred BALB C
-
Plasmids / administration & dosage
-
Plasmids / genetics
-
Pore Forming Cytotoxic Proteins
-
Vaccines, DNA / administration & dosage*
-
Vaccines, DNA / genetics
-
Vaccines, DNA / immunology
-
Viral Envelope Proteins / genetics
-
Viral Envelope Proteins / immunology*
-
Viral Vaccines / administration & dosage*
-
Viral Vaccines / genetics
-
Viral Vaccines / immunology
-
Yersinia pestis / genetics
-
Yersinia pestis / immunology*
Substances
-
Antigens, Bacterial
-
Bacterial Vaccines
-
LcrV protein, Yersinia
-
Pore Forming Cytotoxic Proteins
-
Vaccines, DNA
-
Viral Envelope Proteins
-
Viral Vaccines
-
glycoprotein E2, equine encephalitis virus
-
Gold
-
DNA