Counterion effects on transfection activity of cationic lipid emulsion

  • Young Jin Kim
  • , Tae Woo Kim
  • , Hesson Chung
  • , Ick Chan Kwon
  • , Seo Young Jeong*
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    Cationic lipid emulsion systems consisting of 1,2-dioleoyl-sn-glycero-3- trimethyl-ammonium-propane (DOTAP) and plasmid DNA with various counterions in the lipid headgroups were prepared. The transfection activity of the cationic lipid emulsion systems was then investigated in vitro and in vivo. The complex formation of plasmid DNA and lipid emulsion was affected by the counterions through charged headgroup repulsion and also by the salt concentration in the media. As such, the transfection activity of the DOTAP emulsion system can be controlled by changing the counterions.

    Original languageEnglish
    Pages (from-to)279-283
    Number of pages5
    JournalBiotechnology and Bioprocess Engineering
    Volume6
    Issue number4
    DOIs
    Publication statusPublished - 2001

    Keywords

    • COS-1 cell
    • Cationic lipid emulsion
    • Counterion
    • DOTAP
    • Gene transfer

    ASJC Scopus subject areas

    • Biotechnology
    • Bioengineering
    • Applied Microbiology and Biotechnology
    • Biomedical Engineering

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