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KMID : 0379520140300040235
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한국독성학회지
2014 Volume.30 No. 4 p.235 ~ p.242
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Mitochondrial DNA Somatic Mutation in Cancer
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Kim Ae-kyong
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Abstract
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Cancer cells are known to drastically alter cellular energy metabolism. The Warburg effect has been known for over 80 years as pertaining cancer-specific aerobic glycolysis. As underlying molecular mechanisms are elucidated so that cancer cells alter the cellular energy metabolism for their advantage, the significance of the modulation of metabolic profiles is gaining attention. Now, metabolic reprogramming is becoming an emerging hallmark of cancer. Therapeutic agents that target cancer energy metabolism are under intensive investigation, but these investigations are mostly focused on the cytosolic glycolytic processes. Although mitochondrial oxidative phosphorylation is an integral part of cellular energy metabolism, until recently, it has been regarded as an auxiliary to cytosolic glycolytic processes in cancer energy metabolism. In this review, we will discuss the importance of mitochondrial respiration in the metabolic reprogramming of cancer, in addition to discussing the justification for using mitochondrial DNA somatic mutation as metabolic determinants for cancer sensitivity in glucose limitation.
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KEYWORD
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Mitochondrial DNA, Somatic mutation, Cancer, Aerobic glycolysis, Warburg effect, Oxidative phosphorylation, Oncobiguanide, Efficacy, Toxicity
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