Characterization of Transgenic Mice That Overexpress Both Copper Zinc Superoxide Dismutase and Catalase
- 1 March 2006
- journal article
- research article
- Published by Mary Ann Liebert Inc in Antioxidants and Redox Signaling
- Vol. 8 (3-4), 628-638
- https://doi.org/10.1089/ars.2006.8.628
Abstract
Transgenic mice overexpressing both Cu/ZnSOD and catalase [Tg(SOD1/CAT) +/o] were used to evaluate the effects of overexpression of both genes against oxidative stress. Characterization of these transgenic mice revealed that catalase or Cu/ZnSOD activities were two- to fourfold higher in the tissues of transgenic mice compared to wild-type mice, and the activities of the other major antioxidant enzymes were not altered in the tissues of the transgenic mice. The murine embryonic fibroblasts (MEFs) from the Tg(SOD1/CAT) +/o and MEFs overexpressing Cu/ZnSOD were more resistant to paraquat cytotoxicity, relative to wild-type MEFs. The MEFs from Tg(SOD1/CAT) +/o tended to be more resistant (up to 2.25-fold) to paraquat cytotoxicity than MEFs overexpressing either Cu/ZnSOD or catalase alone. MEFs from Tg(CAT) +/o and Tg(SOD1/CAT) +/o were equally as resistant to hydrogen peroxide cytotoxicity. However, there were no significant differences in whole animal survival against either paraquat or γ-radiation.Keywords
This publication has 63 references indexed in Scilit:
- Effects of Overexpression of Copper-Zinc and Manganese Superoxide Dismutases, Catalase, and Thioredoxin Reductase Genes on Longevity in Drosophila melanogasterJournal of Biological Chemistry, 2003
- A strategy for the ubiquitous overexpression of human catalase and CuZn superoxide dismutase genes in transgenic miceMechanisms of Ageing and Development, 2003
- Exacerbation of Delayed Cell Injury After Transient Global Ischemia in Mutant Mice With CuZn Superoxide Dismutase DeficiencyStroke, 1999
- Ovarian Function in Superoxide Dismutase 1 and 2 Knockout MiceEndocrinology, 1998
- Motor neurons in Cu/Zn superoxide dismutase-deficient mice develop normally but exhibit enhanced cell death after axonal injuryNature Genetics, 1996
- Elevation in the Ratio of Cu/Zn-Superoxide Dismutase to Glutathione Peroxidase Activity Induces Features of Cellular Senescence and This Effect Is Mediated by Hydrogen PeroxideHuman Molecular Genetics, 1996
- Extension of Life-Span by Overexpression of Superoxide Dismutase and Catalase in Drosophila melanogasterScience, 1994
- Down's syndrome: Abnormal neuromuscular junction in tongue of transgenic mice with elevated levels of human Cu/Zn-superoxide dismutaseCell, 1988
- A Simultaneous Visualization of the Antioxidant Enzymes Glutathione Peroxidase and Catalase on Polyacrylamide GelsFree Radical Research Communications, 1988
- Comparative study of the enzymatic defense systems against oxygen-derived free radicals: The key role of glutathione peroxidaseFree Radical Biology & Medicine, 1987