Title : Metabolic utilization of exogenous pyruvate by mutant p53 (R175H) human melanoma cells promotes survival under glucose depletion.

Pub. Date : 2011 Oct 1

PMID : 21832879






4 Functional Relationships(s)
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1 Metabolic utilization of exogenous pyruvate by mutant p53 (R175H) human melanoma cells promotes survival under glucose depletion. Glucose tumor protein p53 Homo sapiens
2 Mutant p53 melanoma were resistant to a comparable metabolic restriction, only showing PARP fragmentation when glucose depletion was accompanied by treatment with diphenylene iodonium (DPI), a NADPH oxidase inhibitor of superoxide (O2*-) generation. Glucose tumor protein p53 Homo sapiens
3 Metabolic utilization and survival under glucose depletion was increased by pyruvate in mutant p53 (R175H) cells. Glucose tumor protein p53 Homo sapiens
4 Our results show for the first time that melanoma cells harbouring a p53 (R175H) mutation increase: a) survival under glucose depletion, counteracted by NADPH-oxidase modulators like DPI; b) resistance to DPI when supplemented with exogenous pyruvate. Glucose tumor protein p53 Homo sapiens