Cited by 459Cancer, Hypoxia, and MetabolismAmino Acid Enzymes and MetabolismCancer and biochemical research

Serine Catabolism Regulates Mitochondrial Redox Control during Hypoxia

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Ye, Jiangbin, Fan, Jing, Venneti, Sriram, Wan, Ying-Wooi, Pawel, Bruce R., Zhang, Ji, Finley, Lydia W.S., Lu, Chao +7 more·2014·Cancer Discovery

Published version of a preprint

Abstract

The de novo synthesis of the nonessential amino acid serine is often upregulated in cancer. In this study, we demonstrate that the serine catabolic enzyme, mitochondrial serine hydroxymethyltransferase (SHMT2), is induced when MYC-transformed cells are subjected to hypoxia. In mitochondria, SHMT2 can initiate the degradation of serine to CO2 and NH4+, resulting in net production of NADPH from NADP+. Knockdown of SHMT2 in MYC-dependent cells reduced cellular NADPH:NADP+ ratio, increased cellular reactive oxygen species, and triggered hypoxia-induced cell death. In vivo, SHMT2 suppression led to impaired tumor growth. In MYC-amplified neuroblastoma patient samples, there was a significant correlation between SHMT2 and hypoxia-inducible factor-1 α (HIF1α), and SHMT2 expression correlated with unfavorable patient prognosis. Together, these data demonstrate that mitochondrial serine catabolism supports tumor growth by maintaining mitochondrial redox balance and cell survival. Significance: In this study, we demonstrate that the mitochondrial enzyme SHMT2 is induced upon hypoxic stress and is critical for maintaining NADPH production and redox balance to support tumor cell survival and growth. Cancer Discov; 4(12); 1406–17. ©2014 AACR. See related commentary by Martínez-Reyes and Chandel, p. 1371 This article is highlighted in the In This Issue feature, p. 1355

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Authors
Ye, J., Fan, J., Venneti, S., Wan, Y.-W., Pawel, B. R., Zhang, J., Finley, L. W. S., Lu, C., Lindsten, T., Cross, J. R., Qing, G., Liu, Z., Simon, M. C., Rabinowitz, J. D., & Thompson, C. B.
Affiliations
  • Memorial Sloan Kettering Cancer Center (US)
  • Princeton University (US)
  • Baylor College of Medicine (US)
  • Children's Hospital of Philadelphia (US)
  • 1Cancer Biology and Genetics Program and Immunology Program, Memorial Sloan Kettering Cancer Center, New York, New York.
  • Huazhong University of Science and Technology (CN)
  • Howard Hughes Medical Institute (US)
Corresponding author
Thompson, Craig B.
Venue
Cancer Discovery
Published
2014-12-01
Volume
4
Issue
12
Pages
1406-1417
ISSN
  • 2159-8274 (ISSN-L)
  • 2159-8290
OpenAlex
W2163404652
Cited by
452
References
50
Citations by year
2026: 31 · 2025: 29 · 2024: 40 · 2023: 38 · 2022: 46 · 2021: 58 · 2020: 67 · 2019: 36 · 2018: 21 · 2017: 27 · 2016: 34 · 2015: 19 · 2014: 5
FWCI
9.08
Type
journal article
Language
en
Open access
Locations
  • Cancer Discovery (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Howard Hughes Medical Institute
  • Memorial Sloan-Kettering Cancer Center
  • National Institutes of Health
  • National Cancer Institute (K08CA181475, P01CA104838, K99CA184239, R01CA105463, P30CA008748, R01CA163591)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer and biochemical research
Keywords
serine catabolism, SHMT2, hypoxia, mitochondrial redox balance, NADPH/NADP+ ratio, reactive oxygen species, c-Myc, tumor growth, neuroblastoma, hypoxia-inducible factor-1α, hypoxia-induced cell death, cancer metabolism
MeSH terms
Animals, Hypoxia, Base Sequence, Cell Survival, Disease Models, Animal, Gene Amplification, Homeostasis, Humans, Mitochondria, Models, Biological, Molecular Sequence Data, Neoplasms, Oxidation-Reduction, Promoter Regions, Genetic, Serine, Glycine Hydroxymethyltransferase, Gene Expression, Genes, myc, Reactive Oxygen Species, Cell Line, Tumor, Tumor Burden, Phosphoglycerate Dehydrogenase, Mice, Hypoxia-Inducible Factor 1, alpha Subunit, Gene Knockdown Techniques, Heterografts

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