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Proteomics ; 19(4): e1800353, 2019 02.
Article in English | MEDLINE | ID: mdl-30556651

ABSTRACT

Uncoupling protein 2 (UCP2) is often upregulated in cancer cells. The UCP2 upregulation is positively correlated with enhanced proliferation, tumorigenesis, and metabolic alterations, thus suggesting that UCP2 upregulation can play a key role in sensing metabolic changes to promote tumorigenesis. To determine the global metabolic impact of UCP2 upregulation, 13 C6 glucose as a source molecule is used to "trace" the metabolic fate of carbon atoms derived from glucose. UCP2 overexpression in skin epidermal cells enhances the incorporation of 13 C label to pyruvate, tricarboxylic acid cycle intermediates, nucleotides, and amino acids, suggesting that UCP2 upregulation reprograms cellular metabolism toward macromolecule synthesis. To the best of our knowledge, this is the first study to bring to light the overall metabolic differences caused by UCP2 upregulation.


Subject(s)
Glucose/metabolism , Uncoupling Protein 2/metabolism , Anaerobiosis , Animals , Cell Line , Humans , Metabolic Networks and Pathways , Mice , Uncoupling Protein 2/genetics
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