UCP2 Overexpression Redirects Glucose into Anabolic Metabolic Pathways

Annapoorna Sreedhar, Teresa Cassell, Parker Smith, Daiwei Lu, Hyung W. Nam, Andrew N. Lane, Yunfeng Zhao

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

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, 13C6 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 13C 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.

Original languageEnglish
Article number1800353
JournalProteomics
Volume19
Issue number4
DOIs
StatePublished - Feb 2019

Bibliographical note

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • bioenergetics
  • metabolite profiling
  • metabolomics
  • mitochondrial metabolism
  • tumorigenesis
  • uncoupling protein 2

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology

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