Spermine compaction is an efficient and economical method of producing vaccination-grade DNA

Dan V. Mourich, Michael Munks, Jason C. Murphy, Richard C. Willson, Ann Hill

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Plasmid DNA inoculations can induce both humoral and cellular immunity, and this technique is now being employed in developing vaccination regimens for a large number of applications. DNA vaccination studies require the preparation of large amounts of purified plasmid DNA with low endotoxin contamination, and the cost burden for multiple injections, multiple animal or large animal studies is significant. We recently reported that selective compaction with spermine can be used to purify large quantities of DNA. We wanted to determine whether this method would produce DNA suitable for vaccination. Endotoxin levels for spermine-compacted DNA were 0.3±0.01 endotoxin units (EU)/μg, well within the accepted range (less than 3 EU/μg) for in vivo use. When injected intramuscularly into mice, column-purified and spermine-compacted DNA induced an equivalent antigen-specific CD8+ T-cell response. The labor and time involved in purifying 5 mg of DNA by each method were similar, but the cost of spermine-compacted DNA was only 20% of the cost of column-purified DNA. We conclude that spermine compaction is an efficient and economical method for preparing vaccination-grade DNA.

Original languageEnglish (US)
Pages (from-to)257-264
Number of pages8
JournalJournal of Immunological Methods
Volume274
Issue number1-2
DOIs
StatePublished - Mar 1 2003

Fingerprint

Spermine
Vaccination
DNA
Endotoxins
Costs and Cost Analysis
Plasmids
CD8 Antigens
Humoral Immunity
Cellular Immunity
T-Lymphocytes

Keywords

  • Cytotoxic lymphocytes
  • Plasmid DNA
  • Purification
  • Vaccination

ASJC Scopus subject areas

  • Biotechnology
  • Immunology

Cite this

Spermine compaction is an efficient and economical method of producing vaccination-grade DNA. / Mourich, Dan V.; Munks, Michael; Murphy, Jason C.; Willson, Richard C.; Hill, Ann.

In: Journal of Immunological Methods, Vol. 274, No. 1-2, 01.03.2003, p. 257-264.

Research output: Contribution to journalArticle

Mourich, Dan V. ; Munks, Michael ; Murphy, Jason C. ; Willson, Richard C. ; Hill, Ann. / Spermine compaction is an efficient and economical method of producing vaccination-grade DNA. In: Journal of Immunological Methods. 2003 ; Vol. 274, No. 1-2. pp. 257-264.
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