Cited by 277Cancer, Hypoxia, and MetabolismAmino Acid Enzymes and MetabolismCancer, Lipids, and Metabolism

Glutamine synthetase is a genetic determinant of cell type-specific glutamine independence in breast epithelia

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Kung, Hsiu-Ni, Marks, Jeffrey R., Chi, Jen-Tsan·2011·PLoS Genetics

Abstract

Although significant variations in the metabolic profiles exist among different cells, little is understood in terms of genetic regulations of such cell type-specific metabolic phenotypes and nutrient requirements. While many cancer cells depend on exogenous glutamine for survival to justify the therapeutic targeting of glutamine metabolism, the mechanisms of glutamine dependence and likely response and resistance of such glutamine-targeting strategies among cancers are largely unknown. In this study, we have found a systematic variation in the glutamine dependence among breast tumor subtypes associated with mammary differentiation: basal- but not luminal-type breast cells are more glutamine-dependent and may be susceptible to glutamine-targeting therapeutics. Glutamine independence of luminal-type cells is associated mechanistically with lineage-specific expression of glutamine synthetase (GS). Luminal cells can also rescue basal cells in co-culture without glutamine, indicating a potential for glutamine symbiosis within breast ducts. The luminal-specific expression of GS is directly induced by GATA3 and represses glutaminase expression. Such distinct glutamine dependency and metabolic symbiosis is coupled with the acquisition of the GS and glutamine independence during the mammary differentiation program. Understanding the genetic circuitry governing distinct metabolic patterns is relevant to many symbiotic relationships among different cells and organisms. In addition, the ability of GS to predict patterns of glutamine metabolism and dependency among tumors is also crucial in the rational design and application of glutamine and other metabolic pathway targeted therapies.

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Crossref · 10.1371/journal.pgen.1002229

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  • Most basal breast cancer cells require glutamine supplementation in media, whereas luminal breast cancers are less glutamine dependent.

    “most basal breast cancer cells require glutamine supplementation in the media, whereas luminal breast cancers are less glutamine dependent [76].”
  • Some cell types, such as embryonic stem cells and luminal breast cancer cells, can proliferate without glutamine in culture medium, indicating de novo glutamine production in some contexts.

    “Interestingly, some cell types, such as embryonic stem cells and luminal breast cancer cells, are capable of proliferating in the absence of glutamine in the culture medium, indicating that in some cellular contexts, glutamine can be produced de novo (Carey et al., 2015; Kung et al., 2011).”

    From The emerging hallmarks of cancer metabolism (2016) · cites this paper as Kung et al., 2011

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  1. [44]Chi JT Rodriguez EH Wang Z Nuyten DSA Mukherjee S 2007 Gene Expression Programs of Human Smooth Muscle Cells: Tissue-Specific Differentiation and Prognostic Significance in Breast Cancers. PLoS Genet 3 e164 doi: 10.1371/journal.pgen.0030164 PMC1994710 17907811 · DOI

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Authors
Kung, H.-N., Marks, J. R., & Chi, J.-T.
Affiliations
  • National Taiwan University (TW)
  • Duke Medical Center (US)
Corresponding author
Chi, Jen-Tsan
Venue
PLoS Genetics
Published
2011-08-11
Volume
7
Issue
8
Pages
e1002229
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2056648518
Cited by
277
References
66
Citations by year
2026: 5 · 2025: 10 · 2024: 14 · 2023: 21 · 2022: 20 · 2021: 34 · 2020: 21 · 2019: 27 · 2018: 16 · 2017: 19 · 2016: 26 · 2015: 19 · 2014: 19 · 2013: 16 · 2012: 9
FWCI
4.89
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • National Institutes of Health
  • National Cancer Institute (R01CA125618, U01CA084955, UO1CA084955)
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
glutamine synthetase, glutamine addiction, breast epithelium, mammary gland differentiation, basal-like breast cancer, luminal breast cancer, GATA3, glutaminase, metabolic symbiosis, cell type-specific metabolism, tumor subtypes
MeSH terms
Breast, Breast Neoplasms, Cell Differentiation, Cell Survival, Culture Media, Epithelium, Female, Glutaminase, Glutamine, Glutamate-Ammonia Ligase, Humans, Nutritional Physiological Phenomena, Phenotype, Promoter Regions, Genetic, Gene Expression, Gene Expression Regulation, Neoplastic, Coculture Techniques, Cell Lineage, Gene Expression Profiling, Cell Line, Tumor, Cell Proliferation, GATA3 Transcription Factor, Molecular Targeted Therapy

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