Summary
The biolistic technique transforms cells by bombardment with DNA-coated microprojectiles. It has been used to transform plants, microbes, and organelles. We adapted a standard Biolistic PDS-1000 device for use with animals and have successfully transformed tissues in live mice. The firefly luciferase gene was introduced into mouse skin and ear tissue. One day after transformation 344±74 and 1648±254 pg of luciferase were detected in skin and ear samples, respectively. Expression of the gene product was transient but detectable up to 7 days after bombardment. A further modification of the device allowed transient transformation of liver tissue in vivo. Liver contained 293±122 pg of luciferase 1 day postransformation. Expression of the gene in liver tissue was unchanged at Day 3 but declined to low levels by Day 5. This new device allowed a fourfold increase in gene expression in ear tissue extending a minimum of 14 days. This technology is applicable to a broad range of tissues and organs in situ and makes it possible to test numerous reporters and the tissue specificity of promoters. It may also be useful in protocols for somatic cell therapy.
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Presented in the Session-in-Depth Genetic Transformation and Genetic Analysis Using Microprojectile Bombardment at the 41st Annual Meeting of the Tissue Culture Association, Houston, Texas, June 10–13, 1990.
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Johnston, S.A., Riedy, M., De Vit, M.J. et al. Biolistic transformation of animal tissue. In Vitro Cell Dev Biol - Plant 27, 11–14 (1991). https://doi.org/10.1007/BF02632055
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DOI: https://doi.org/10.1007/BF02632055