| Title |
Absence of manganese superoxide dismutase delays p53-induced tumor formation
|
|---|---|
| Published in |
Redox Biology, January 2014
|
| DOI | 10.1016/j.redox.2014.01.001 |
| Pubmed ID | |
| Authors | |
| Abstract |
Manganese superoxide dismutase (MnSOD) is a mitochondrial antioxidant enzyme that is down-regulated in a majority of cancers. Due to this observation, as well as MnSOD's potent antioxidant enzymatic activity, MnSOD has been suggested as a tumor suppressor for over 30 years. However, testing this postulate has proven difficult due to the early post-natal lethality of the MnSOD constitutive knock-out mouse. We have previously used a conditional tissue-specific MnSOD knock-out mouse to study the effects of MnSOD loss on the development of various cell types, but long-term cancer development studies have not been performed. We hypothesized the complete loss of MnSOD would significantly increase the rate of tumor formation in a tissue-specific manner. |
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