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Proceedings Paper

A transgenic rat with ubiquitous expression of firefly luciferase gene
Author(s): Yoji Hakamata; Takashi Murakami; Eiji Kobayashi
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Paper Abstract

In vivo imaging strategies provide cellular and molecular events in real time that helps us to understand biological processes in living animals. The development of molecular tags such as green fluorescent proteins and luciferase from the firefly Photinus pyralis has lead to a revolution in the visualization of complex biochemical processes. We developed a novel inbred transgenic rat strain containing firefly luciferase based on the transgenic (Tg) technique in rats. This Tg rat expressed the luciferase gene ubiquitously under control of the ROSA26 promoter. Cellular immune responsiveness against the luciferase protein was evaluated using conventional skin grafting and resulted in the long-term acceptance of Tg rat skin on wild-type rats. Strikingly, organ transplant with heart and small bowel demonstrated organ viability and graft survival, suggesting that cells from luciferase-Tg are transplantable to track their fate. Taking advantage of the less immunogenic luciferase, we also tested the role of hepatocyte-infusion in a liver injury model, and bone marrow-derived cells in a skin defect model. Employed in conjunction with modern advances in optical imaging, this luciferase-Tg rat system provides an innovative animal tool and a new means of facilitating biomedical research such as in the case of regeneration medicine.

Paper Details

Date Published: 23 February 2006
PDF: 8 pages
Proc. SPIE 6098, Genetically Engineered Probes for Biomedical Applications, 60980G (23 February 2006); doi: 10.1117/12.647369
Show Author Affiliations
Yoji Hakamata, Jichi Medical School (Japan)
Takashi Murakami, Jichi Medical School (Japan)
Eiji Kobayashi, Jichi Medical School (Japan)

Published in SPIE Proceedings Vol. 6098:
Genetically Engineered Probes for Biomedical Applications
Alexander P. Savitsky; Rebekka M. Wachter, Editor(s)

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