期刊
BIOPHYSICAL JOURNAL
卷 111, 期 5, 页码 1088-1100出版社
CELL PRESS
DOI: 10.1016/j.bpj.2016.07.028
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资金
- National Cancer Institute at the National Institutes of Health [R01CA193256, R00 CA168997]
- Ministry of Science and Technology of China [2015CB910300]
The Warburg effect, or aerobic glycolysis, is marked by the increased metabolism of glucose to lactate in the presence of oxygen. Despite its widespread prevalence in physiology and cancer biology, the causes and consequences remain incompletely understood. Here, we show that a simple balance of interacting fluxes in glycolysis creates constraints that impose the necessary conditions for glycolytic flux to generate lactate as opposed to entering into the mitochondria. These conditions are determined by cellular redox and energy demands. By analyzing the constraints and sampling the feasible region of the model, we further study how cell proliferation rate and mitochondria-associated NADH oxidizing and ATP producing fluxes are interlinked. Together this analysis illustrates the simplicity of the origins of the Warburg effect by identifying the flux distributions that are necessary for its instantiation.
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