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Open Access Method for Continuous Infusion into the Portal Vein of Mice

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Recombinant retroviral vectors are attractive for in vivo gene transfer into the liver because they integrate into the host-cell genome, resulting in permanent gene expression. Gene-transfer efficiency can be improved by increasing the number of retroviral particles delivered to hepatocytes. For this purpose, we report a mouse model for continuous infusion into the portal circulation permitting large-volume vector administration, which will allow marked increase in gene-transfer efficiency. Continuous saline infusion was evaluated, using various parameters, and an infusion rate of 6 ml/24 h was found safe and well tolerated for at least 2 weeks. No significant changes in liver and kidney function and electrolyte balance were observed during the infusion. In addition to providing a valuable method for in vivo hepatic gene therapy, this model has a number of other potential applications, including mouse studies of hepatic tumor therapy, pharmacology, toxicology, and liver biology.

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Document Type: Research Article

Affiliations: Markey Molecular Medicine Center, Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, Washington, Department of Surgery, Leiden University Medical Center, The Netherlands

Publication date: 1998-08-01

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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