DNA vaccines: protective immunizations by parenteral, mucosal, and gene-gun inoculations - PubMed (original) (raw)

DNA vaccines: protective immunizations by parenteral, mucosal, and gene-gun inoculations

E F Fynan et al. Proc Natl Acad Sci U S A. 1993.

Abstract

Plasmid DNAs expressing influenza virus hemagglutinin glycoproteins have been tested for their ability to raise protective immunity against lethal influenza challenges of the same subtype. In trials using two inoculations of from 50 to 300 micrograms of purified DNA in saline, 67-95% of test mice and 25-63% of test chickens have been protected against a lethal influenza challenge. Parenteral routes of inoculation that achieved good protection included intramuscular and intravenous injections. Successful mucosal routes of vaccination included DNA drops administered to the nares or trachea. By far the most efficient DNA immunizations were achieved by using a gene gun to deliver DNA-coated gold beads to the epidermis. In mice, 95% protection was achieved by two immunizations with beads loaded with as little as 0.4 micrograms of DNA. The breadth of routes supporting successful DNA immunizations, coupled with the very small amounts of DNA required for gene-gun immunizations, highlight the potential of this remarkably simple technique for the development of subunit vaccines.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Lab Invest. 1973 Jun;28(6):686-92 - PubMed
    1. Proc R Soc Lond B Biol Sci. 1964 Jan 14;159:257-82 - PubMed
    1. J Virol. 1979 Mar;29(3):990-6 - PubMed
    1. Nature. 1981 Jul 2;292(5818):72-5 - PubMed
    1. J Invest Dermatol. 1983 Jun;80 Suppl:12s-16s - PubMed

Publication types

MeSH terms

Substances

LinkOut - more resources