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lüll HIF-1: upstream and downstream of cancer metabolism Semenza GLCurr Opin Genet Dev 2010[Feb]; 20 (1): 51-6Hypoxia-inducible factor 1 (HIF-1) plays a key role in the reprogramming of cancer metabolism by activating transcription of genes encoding glucose transporters and glycolytic enzymes, which take up glucose and convert it to lactate; pyruvate dehydrogenase kinase 1, which shunts pyruvate away from the mitochondria; and BNIP3, which triggers selective mitochondrial autophagy. The shift from oxidative to glycolytic metabolism allows maintenance of redox homeostasis and cell survival under conditions of prolonged hypoxia. Many metabolic abnormalities in cancer cells increase HIF-1 activity. As a result, a feed-forward mechanism can be activated that drives HIF-1 activation and may promote tumor progression.|*Disease Progression[MESH]|Energy Metabolism/*genetics[MESH]|Gene Expression Regulation[MESH]|Glucose/metabolism[MESH]|Humans[MESH]|Hypoxia-Inducible Factor 1/genetics/*metabolism[MESH]|Neoplasms/genetics/*metabolism[MESH]|Trans-Activators/pharmacology[MESH] |