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Current Pharmaceutical Biotechnology


ISSN (Print): 1389-2010
ISSN (Online): 1873-4316

p53 Regulation of Energy Metabolism and Mitochondria Regulation of p53 in Cancer Cells: An Insight into the Role of Manganese Superoxide Dismutase

Author(s): Yulan Sun, Aaron K. Holley and Daret K. St. Clair

Volume 14, Issue 3, 2013

Page: [261 - 273] Pages: 13

DOI: 10.2174/1389201011314030003

Price: $65


Accumulated evidence suggests that p53 plays an important role in the regulation of metabolism and intracellular redox homeostasis through transcription-dependent and -independent mechanisms. Mitochondria, the power plant of cells, provide cells with ATP for their functions by regulating energy metabolism. In addition, as the byproducts of metabolism, reactive oxygen species (ROS) generated in the mitochondria can serve as signaling molecules to regulate p53 function. The regulation of p53 by mitochondria, especially redox-mediated regulation, may be involved in controlling the cellular switch between survival and death. The interplay between p53 and manganese superoxide dismutase (MnSOD), an important mitochondrial antioxidant enzyme, is an example of how nuclear and mitochondrial p53 coordinate their response to different levels of stress and contribute to the fate of cells.

Keywords: p53, mitochondria, metabolism, MnSOD, ROS, manganese superoxide dismutase (MnSOD), Warburg Effect, p53 deficiency

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