Redox signaling by glutathione peroxidase 2 links vascular modulation to metabolic plasticity of breast cancer
Journal Article
·
· Proceedings of the National Academy of Sciences of the United States of America
- Albert Einstein College of Medicine, Bronx, NY (United States); OSTI
- Albert Einstein College of Medicine, Bronx, NY (United States)
- Univ. of Queensland, Brisbane, QLD (Australia)
- Icahn School of Medicine at Mount Sinai, New York, NY (United States)
- Memorial Sloan Kettering Cancer Center, New York, NY (United States)
Redox regulation of breast cancer underlies malignant progression. Loss of the antioxidant glutathione peroxidase 2 in breast cancer cells increases reactive oxygen species, thereby activating hypoxia inducible factor-α (HIF1α) signaling. This in turn causes vascular malfunction, resulting in hypoxia and metabolic heterogeneity. HIF1α suppresses oxidative phosphorylation and stimulates glycolysis (the Warburg effect) in most of the tumor, except for one cancer subpopulation, which was capable of using both metabolic modalities. Hence, adopting a hybrid metabolic state may allow tumor cells to survive under aerobic or hypoxic conditions, a vulnerability that may be exploited for therapeutic targeting by either metabolic or redox-based strategies.
- Research Organization:
- Washington Univ., St. Louis, MO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0001035
- OSTI ID:
- 2419585
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 8 Vol. 119; ISSN 0027-8424
- Publisher:
- National Academy of SciencesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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