PGC1α Expression Defines a Subset of Human Melanoma Tumors with Increased Mitochondrial Capacity and Resistance to Oxidative Stress

Francisca Vazquez, Ji Hong Lim, Helen Chim, Kavita Bhalla, Geoff Girnun, Kerry Pierce, Clary B. Clish, Scott R. Granter, Hans R. Widlund, Bruce M. Spiegelman, Pere Puigserver

Research output: Contribution to journalArticlepeer-review

Abstract

Cancer cells reprogram their metabolism using different strategies to meet energy and anabolic demands to maintain growth and survival. Understanding the molecular and genetic determinants of these metabolic programs is critical to successfully exploit them for therapy. Here, we report that the oncogenic melanocyte lineage-specification transcription factor MITF drives PGC1α (PPARGC1A) overexpression in a subset of human melanomas and derived cell lines. Functionally, PGC1α positive melanoma cells exhibit increased mitochondrial energy metabolism and reactive oxygen species (ROS) detoxification capacities that enable survival under oxidative stress conditions. Conversely, PGC1α negative melanoma cells are more glycolytic and sensitive to ROS-inducing drugs. These results demonstrate that differences in PGC1α levels in melanoma tumors have a profound impact in their metabolism, biology, and drug sensitivity.

Original languageEnglish (US)
Pages (from-to)287-301
Number of pages15
JournalCancer Cell
Volume23
Issue number3
DOIs
StatePublished - Mar 18 2013
Externally publishedYes

ASJC Scopus subject areas

  • Cancer Research
  • Cell Biology
  • Oncology

Fingerprint Dive into the research topics of 'PGC1α Expression Defines a Subset of Human Melanoma Tumors with Increased Mitochondrial Capacity and Resistance to Oxidative Stress'. Together they form a unique fingerprint.

Cite this