Cited by 1,990Cancer, Hypoxia, and MetabolismPancreatic and Hepatic Oncology ResearchAmino Acid Enzymes and Metabolism

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

Glutamine supports pancreatic cancer growth through a KRAS-regulated metabolic pathway

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Abstract

Cancer cells have metabolic dependencies that distinguish them from their normal counterparts. Among these dependencies is an increased use of the amino acid glutamine to fuel anabolic processes. Indeed, the spectrum of glutamine-dependent tumours and the mechanisms whereby glutamine supports cancer metabolism remain areas of active investigation. Here we report the identification of a non-canonical pathway of glutamine use in human pancreatic ductal adenocarcinoma (PDAC) cells that is required for tumour growth. Whereas most cells use glutamate dehydrogenase (GLUD1) to convert glutamine-derived glutamate into α-ketoglutarate in the mitochondria to fuel the tricarboxylic acid cycle, PDAC relies on a distinct pathway in which glutamine-derived aspartate is transported into the cytoplasm where it can be converted into oxaloacetate by aspartate transaminase (GOT1). Subsequently, this oxaloacetate is converted into malate and then pyruvate, ostensibly increasing the NADPH/NADP(+) ratio which can potentially maintain the cellular redox state. Importantly, PDAC cells are strongly dependent on this series of reactions, as glutamine deprivation or genetic inhibition of any enzyme in this pathway leads to an increase in reactive oxygen species and a reduction in reduced glutathione. Moreover, knockdown of any component enzyme in this series of reactions also results in a pronounced suppression of PDAC growth in vitro and in vivo. Furthermore, we establish that the reprogramming of glutamine metabolism is mediated by oncogenic KRAS, the signature genetic alteration in PDAC, through the transcriptional upregulation and repression of key metabolic enzymes in this pathway. The essentiality of this pathway in PDAC and the fact that it is dispensable in normal cells may provide novel therapeutic approaches to treat these refractory tumours.

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Metadata

Authors
Son, J., Lyssiotis, C. A., Ying, H., Wang, X., Hua, S., Ligorio, M., Perera, R. M., Ferrone, C. R., Mullarky, E., Shyh-Chang, N., Kang, Y., Fleming, J. B., Bardeesy, N., Asara, J. M., Haigis, M. C., DePinho, R. A., Cantley, L. C., & Kimmelman, A. C.
Affiliations
  • Dana-Farber Cancer Institute (US)
  • Beth Israel Deaconess Medical Center (US)
  • The University of Texas MD Anderson Cancer Center (US)
  • Massachusetts General Hospital (US)
  • Harvard University (US)
Corresponding author
  • Cantley, Lewis C.
  • Kimmelman, Alec C.
Venue
Nature
Published
2013-03-27
Volume
496
Issue
7443
Pages
101-105
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2014988241
Cited by
1,990
References
27
Citations by year
2026: 130 · 2025: 143 · 2024: 138 · 2023: 169 · 2022: 193 · 2021: 209 · 2020: 169 · 2019: 162 · 2018: 141 · 2017: 144 · 2016: 152 · 2015: 112 · 2014: 95 · 2013: 31
FWCI
45.68
Type
journal article
Language
en
Update notices
erratum (2013-06-12)
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Cancer Institute (T32CA009382, R01CA157490, P01CA120964, P01CA117969, P30CA006516)
  • National Institute of General Medical Sciences (R01GM056203)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
Keywords
pancreatic ductal adenocarcinoma, glutamine metabolism, KRAS, tumor metabolic reprogramming, oxaloacetate, NADPH/NADP+ ratio, redox homeostasis, glutamine deprivation, reactive oxygen species, glutathione, tumor growth
MeSH terms
Adenocarcinoma, Aspartate Aminotransferases, Citric Acid Cycle, Glutamate Dehydrogenase, Glutamine, Homeostasis, Humans, Ketoglutaric Acids, Oncogenes, Oxidation-Reduction, Pancreatic Neoplasms, Proto-Oncogene Proteins, Oncogene Protein p21(ras), Proto-Oncogene Proteins p21(ras), Reactive Oxygen Species, ras Proteins, Cell Line, Tumor, Cell Proliferation, Metabolic Networks and Pathways

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