Optimization of ectopic gene expression in skeletal muscle through DNA transfer by electroporation

Jordan Taylor, Charlie F. Babbs, Mohammed Borhan Alzghoul, Aaron Olsen, Mickey Latour, Amber L. Pond, Kevin Hannon

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Background: Electroporation (EP) is a widely used non-viral gene transfer method. We have attempted to develop an exact protocol to maximize DNA expression while minimizing tissue damage following EP of skeletal muscle in vivo. Specifically, we investigated the effects of varying injection techniques, electrode surface geometry, and plasmid mediums. Results: We found that as the amount of damage increased in skeletal muscle in response to EP, the level of β-galactosidase (β-gal) expression drastically decreased and that there was no evidence of β -gal expression in damaged fibers. Two specific types of electrodes yielded the greatest amount of expression. We also discovered that DNA uptake in skeletal muscle following intra-arterial injection of DNA was significantly enhanced by EP. Finally, we found that DMSO and LipoFECTAMINE™, common enhancers of DNA electroporation in vitro, had no positive effect on DNA electroporation in vivo. Conclusions: When injecting DNA intramuscularly, a flat plate electrode without any plasmid enhancers is the best method to achieve high levels of gene expression.

Original languageEnglish (US)
Article number11
JournalBMC Biotechnology
Volume4
DOIs
StatePublished - May 18 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology

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