High efficiency gene transfer into cultured primary rat and human hepatic stellate cells using baculovirus vectors

Liver
Runping GaoDerek A Mann

Abstract

Gene transfer into hepatic stellate cells (HSC) is inefficient when using plasmid-based transfection methods; viral-based systems are therefore being developed. A baculovirus system has recently been shown to be useful for expressing genes in mammalian cells. The aim of this study was to determine if baculovirus vectors can infect and express target genes in rat and human HSC and to assess potential cytotoxic and modulatory effects of infection. A recombinant baculovirus vector (AcCALacZ) carrying the LacZ gene was used to infect HSC. beta-Galactosidase assays and electron microscopy were used to determine efficiency of infection and gene expression. Counting of trypan blue negative cells was used to assess cytotoxic/cytostatic effects of infection. Measurement of protein content of cells and alpha-smooth muscle actin expression were performed to assess the effects of baculovirus on cell function/phenotype. Baculovirus infection of activated HSC was highly efficient (> 90%) and provided long-term LacZ gene expression (15 days) in the absence of cytotoxic, cytostatic or modulatory effects. Infection of freshly isolated cells was also observed but at lower levels (20%). Baculovirus vectors can therefore be used to deliver target ...Continue Reading

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Citations

May 7, 2005·Nature Biotechnology·Thomas A KostDonald L Jarvis
Jun 16, 2006·Journal of Virology·Anna R MäkeläChristian Oker-Blom
Jun 12, 2013·PloS One·Stephanie L SwiftLindsay J Georgopoulos
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Mar 13, 2008·The Biochemical Journal·Karen WallaceMatthew C Wright

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