Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
ISSN-L : 0918-6158
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The Distribution of mRNA Expression and Protein after Hydrodynamic Injection of Transgene in Mice
Yoshiyuki HattoriKimiko KogaTomohiro IzumisawaMasahiro YamasakiRyota NarishimaSaki YoshidaTetsuya FukuiYoshie Maitani
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2009 Volume 32 Issue 4 Pages 755-759

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Abstract

The hydrodynamic method by rapid intravenous injection of a large volume of plasmid DNA is known to be an efficient and liver-specific method of in vivo gene delivery and achieves high levels of foreign gene expression, particularly in hepatocytes. Low transgene activities have also been observed in other organs such as the spleen and lung; however, the expression profiles of mRNA and protein are still unknown. Therefore, we investigated the localization of luciferase mRNA by in situ hybridization and luciferase activity in mice after transfection of pCMV-luc encoding the luciferase gene under the control of cytomegalo virus (CMV) promoter. We found that hydrodynamic injection effectively induced mRNA expression of the transgene only in the liver although transgene activities were observed in other organs. The transgene activity observed in other organs may be due to leakage from hepatocyte gene expression by transient increase in the permeability of the hepatocyte cellular membrane caused by increased pressure by hydrodynamic injection.

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© 2009 The Pharmaceutical Society of Japan
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