Cited by 1,683Cancer, Hypoxia, and MetabolismAmino Acid Enzymes and MetabolismCancer, Lipids, and Metabolism

The DOI matches its Crossref record; 26 of the 27 references it cites were found in a registry or an index.

Functional genomics reveal that the serine synthesis pathway is essential in breast cancer

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Abstract

Cancer cells adapt their metabolic processes to drive macromolecular biosynthesis for rapid cell growth and proliferation. RNA interference (RNAi)-based loss-of-function screening has proven powerful for the identification of new and interesting cancer targets, and recent studies have used this technology in vivo to identify novel tumour suppressor genes. Here we developed a method for identifying novel cancer targets via negative-selection RNAi screening using a human breast cancer xenograft model at an orthotopic site in the mouse. Using this method, we screened a set of metabolic genes associated with aggressive breast cancer and stemness to identify those required for in vivo tumorigenesis. Among the genes identified, phosphoglycerate dehydrogenase (PHGDH) is in a genomic region of recurrent copy number gain in breast cancer and PHGDH protein levels are elevated in 70% of oestrogen receptor (ER)-negative breast cancers. PHGDH catalyses the first step in the serine biosynthesis pathway, and breast cancer cells with high PHGDH expression have increased serine synthesis flux. Suppression of PHGDH in cell lines with elevated PHGDH expression, but not in those without, causes a strong decrease in cell proliferation and a reduction in serine synthesis. We find that PHGDH suppression does not affect intracellular serine levels, but causes a drop in the levels of α-ketoglutarate, another output of the pathway and a tricarboxylic acid (TCA) cycle intermediate. In cells with high PHGDH expression, the serine synthesis pathway contributes approximately 50% of the total anaplerotic flux of glutamine into the TCA cycle. These results reveal that certain breast cancers are dependent upon increased serine pathway flux caused by PHGDH overexpression and demonstrate the utility of in vivo negative-selection RNAi screens for finding potential anticancer targets.

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Metadata

Authors
Possemato, R., Marks, K. M., Shaul, Y. D., Pacold, M. E., Kim, D., Birsoy, K., Sethumadhavan, S., Woo, H.-K., Jang, H. G., Jha, A. K., Chen, W. W., Barrett, F. G., Stransky, N., Tsun, Z.-Y., Cowley, G. S., Barretina, J., Kalaany, N. Y., Hsu, P. P., Ottina, K., Chan, A. M., Yuan, B., Garraway, L. A., Root, D. E., Mino-Kenudson, M., Brachtel, E. F., Driggers, E. M., & Sabatini, D. M.
Affiliations
  • Whitehead Institute for Biomedical Research (US)
  • Agios Pharmaceuticals (United States) (US)
  • Broad Institute (US)
  • Harvard University (US)
Corresponding author
Sabatini, David M.
Venue
Nature
Published
2011-08
Volume
476
Issue
7360
Pages
346-350
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2022899908
Cited by
1,683
References
27
Citations by year
2026: 72 · 2025: 111 · 2024: 120 · 2023: 116 · 2022: 138 · 2021: 167 · 2020: 137 · 2019: 126 · 2018: 93 · 2017: 97 · 2016: 125 · 2015: 93 · 2014: 109 · 2013: 72 · 2012: 87
FWCI
31.22
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • PMC
Funders
  • Howard Hughes Medical Institute
  • W. M. Keck Foundation
  • Alexander and Margaret Stewart Trust
  • Life Sciences Research Foundation
  • Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology
  • National Institutes of Health
  • National Cancer Institute (CA103866, R01CA103866, R01CA129105)
  • National Institute of General Medical Sciences (T32GM007753)
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 › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
PHGDH, breast cancer, cancer metabolism, breast cancer xenografts, estrogen receptor-negative breast cancer, alpha-ketoglutarate, glutamine metabolism, TCA cycle, anaplerosis, tumor metabolic reprogramming, anticancer drug targets, cell proliferation
MeSH terms
Animals, Breast Neoplasms, Citric Acid Cycle, Humans, Ketoglutaric Acids, Melanoma, Neoplasm Transplantation, Serine, Biomarkers, Tumor, Gene Expression Regulation, Enzymologic, Gene Expression Regulation, Neoplastic, Glutamic Acid, Genomics, RNA Interference, Cell Line, Tumor, Cell Proliferation, Phosphoglycerate Dehydrogenase, Mice

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