Prolonged liver-specific transgene expression by a non-primate lentiviral vector

Reba Condiotti*, Michael A. Curran, Garry P. Nolan, Hilla Giladi, Mali Ketzinel-Gilad, Eitan Gross, Eithan Galun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Liver-directed gene therapy has the potential for treatment of numerous inherited diseases affecting metabolic functions. The aim of this study was to evaluate gene expression in hepatocytes using feline immunodeficiency virus-based lentiviral vectors, which may be potentially safer than those based on human immunodeficiency virus. In vitro studies revealed that gene expression was stable for up to 24 days post-transduction and integration into the host cell genome was suggested by Alu PCR and Southern blot analyses. Systemic in vivo administration of viral particles by the hydrodynamics method resulted in high levels of gene expression exclusively in the liver for over 7 months whereas injection of plasmid DNA by the same method led to transient expression levels. Our studies suggest that feline immunodeficiency-based lentiviral vectors specifically transduce liver cells and may be used as a novel vehicle of gene delivery for treatment of metabolic disease.

Original languageAmerican English
Pages (from-to)998-1006
Number of pages9
JournalBiochemical and Biophysical Research Communications
Volume320
Issue number3
DOIs
StatePublished - 30 Jul 2004
Externally publishedYes

Bibliographical note

Funding Information:
We thank Evelyne Zeira (Goldyne Savad Institute of Gene Therapy, Hadassah University Hospital) and Meir Ohana (Liver Unit, Hadassah University Hospital) for their assistance with the animal studies. This study was supported by a grant from the Israeli Ministry of Science, an infrastructure supportive grant from Hadassah Hospital Funds, and the Grinspoon and Blum Foundations.

Keywords

  • Gene therapy
  • Hepatocytes
  • Hydrodynamic injection
  • Lentiviral vectors
  • Metabolic liver disease
  • Viral integration

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