Abstract:
:This present study aims at establishing a novel in vivo gene delivery system for intra-articular tissues. Plasmid DNA (pDNA) carrying the firefly luciferase or enhanced green fluorescent protein (EGFP) genes as markers was injected into a joint space and electric stimuli were given percutaneously with a pair of electrodes. Injection with naked pDNA alone did not induce any detectable level of luciferase activity, whereas electroporation at 25-500 V/0.7 cm resulted in a significant expression of the marker gene in the synovium. The expression level depended on the voltage, the optimum transfection being achieved at 150 V/0.7 cm. When the Epstein-Barr virus (EBV)-based plasmid vectors harboring the EBV nuclear antigen 1 (EBNA1) gene and oriP sequence were substituted for conventional pDNA, the transfection efficiency was increased approximately 5-10 times. Histological examination of the EGFP gene-transfected joints revealed that the marker gene was expressed in the synovial membrane while other intra-articular tissues such as articular cartilage were negative for the transgene product. Transgene-specific mRNA was demonstrated in synovium but not in other organs as estimated by RT-PCR analysis. The present results strongly suggest that in vivo electroporation is a quite simple, safe, and effective gene delivery method that could be applicable to gene therapy against articular diseases.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Ohashi S,Kubo T,Kishida T,Ikeda T,Takahashi K,Arai Y,Terauchi R,Asada H,Imanishi J,Mazda Odoi
10.1016/S0006-291X(02)00386-8subject
Has Abstractpub_date
2002-05-24 00:00:00pages
1530-5issue
5eissn
0006-291Xissn
1090-2104pii
S0006-291X(02)00386-8journal_volume
293pub_type
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