Cited by 79Cancer, Hypoxia, and MetabolismCancer, Lipids, and MetabolismLipid metabolism and biosynthesis

Hypoxia induces a lipogenic cancer cell phenotype via HIF1α-dependent and -independent pathways

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Valli, Alessandro, Rodriguez, Miguel, Moutsianas, Loukas, Fischer, Roman, Fedele, Vita, Huang, Hong-Lei, Van Stiphout, Ruud, Jones, Dylan +10 more·2015·Oncotarget

Abstract

// Alessandro Valli 1,2,7 , Miguel Rodriguez 3,4 , Loukas Moutsianas 5 , Roman Fischer 2 , Vita Fedele 2 , Hong-Lei Huang 2 , Ruud Van Stiphout 1 , Dylan Jones 1 , Michael Mccarthy 2 , Maria Vinaxia 3,4 , Kaori Igarashi 6 , Maya Sato 6 , Tomoyoshi Soga 6 , Francesca Buffa 1 , James Mccullagh 7 , Oscar Yanes 3,4 , Adrian Harris 1,* and Benedikt Kessler 2,* 1 Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK 2 Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK 3 Centre for Omic Sciences, Rovira i Virgili University, Reus, Spain 4 Biomedical Research Centre in Diabetes and Associated Metabolic Disorders, Madrid, Spain 5 The Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, Oxford, UK 6 Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan 7 Mass Spectrometry Research Facility CRL, Department of Chemistry, University of Oxford, Oxford, UK * equal senior authors Correspondence: Alessandro Valli, email: // Keywords : cancer metabolism, fatty acids, HIF1α, HIF2α, hypoxia, Kennedy pathway, lipidomics, PAF Received : June 01, 2014 Accepted : December 10, 2014 Published : December 11, 2014 Abstract The biochemistry of cancer cells diverges significantly from normal cells as a result of a comprehensive reprogramming of metabolic pathways. A major factor influencing cancer metabolism is hypoxia, which is mediated by HIF1α and HIF2α. HIF1α represents one of the principal regulators of metabolism and energetic balance in cancer cells through its regulation of glycolysis, glycogen synthesis, Krebs cycle and the pentose phosphate shunt. However, less is known about the role of HIF1α in modulating lipid metabolism. Lipids serve cancer cells to provide molecules acting as oncogenic signals, energetic reserve, precursors for new membrane synthesis and to balance redox biological reactions. To study the role of HIF1α in these processes, we used HCT116 colorectal cancer cells expressing endogenous HIF1α and cells in which the hif1α gene was deleted to characterize HIF1α-dependent and independent effects on hypoxia regulated lipid metabolites. Untargeted metabolomics integrated with proteomics revealed that hypoxia induced many changes in lipids metabolites. Enzymatic steps in fatty acid synthesis and the Kennedy pathway were modified in a HIF1α-dependent fashion. Palmitate, stearate, PLD3 and PAFC16 were regulated in a HIF-independent manner. Our results demonstrate the impact of hypoxia on lipid metabolites, of which a distinct subset is regulated by HIF1α.

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Crossref · 10.18632/oncotarget.3058

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  • The HIF-1α-independent metabolic signature involved HIF-2α upregulation in association with impaired fatty acid β-oxidation, increased cellular lipid storage, and increased cell proliferation; palmitate and stearate accumulated in a HIF-1α-independent manner.

    “This HIF-1α-independent metabolic signature involved HIF-2α upregulation in association with impaired fatty acid (FA) β-oxidation, increased cellular lipid storage, and increased cell proliferation, while palmitate and stearate were observed to accumulate in a HIF-1α-independent manner [96].”

    From HIF-1-Independent Mechanisms Regulating Metabolic Adaptation in Hypoxic Cancer Cells (2021) · cites this paper as [96]

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  • Accumulation of fatty acids provides metabolic precursors for β-oxidation in proliferating cells recovering after re-oxygenation, and fatty acids can act as a free radical buffer via lipid peroxidation.

    “Accumulation of fatty acids provides metabolic precursors for β-oxidation in proliferating cells recovering after re-oxygenation, and fatty acids can also act as a free radical buffer via lipid peroxidation [96].”

    From HIF-1-Independent Mechanisms Regulating Metabolic Adaptation in Hypoxic Cancer Cells (2021) · cites this paper as [96]

    The Results section, “Hypoxic profile of fatty acids” (page not supplied), reports fatty-acid accumulation under hypoxia. The Discussion mentions fatty-acid β-oxidation as a source of acetyl-CoA, but does not say the accumulated fatty acids fuel proliferating cells after re-oxygenation. The passages found also do not support free-radical buffering via lipid peroxidation. (LLM, conf=0.82)

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  • The C-16 homolog of PAF accumulated in hypoxia in a HIF-1α-/HIF-2α-independent manner due to reduced PAFC16 catabolism from lowered levels of PLD3.

    “The C-16 homolog of PAF was found to accumulate in hypoxia in a HIF-1α-/HIF-2α-independent manner due to reduced PAFC16 catabolism from lowered levels of PLD3 [96].”

    From HIF-1-Independent Mechanisms Regulating Metabolic Adaptation in Hypoxic Cancer Cells (2021) · cites this paper as [96]

    The Results section reports PAFC16 accumulation under hypoxia in HIF1α- and HIF2α-deficient colorectal cancer cells. The Discussion reports reduced PLD3 protein levels, but does not establish that reduced PLD3 caused the accumulation; it instead suggests reduced PAFC16 catabolism may result from decreased activity of an oxygen-dependent monooxygenase. Page numbers are not provided in our copy. (LLM, conf=0.86)

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  • Hypoxia induces changes in several lipid metabolites by both HIF-dependent and HIF-independent mechanisms.

    “hypoxia was also found to induce changes in several lipid metabolites by both HIF-dependent and HIF-independent mechanisms [96].”
  • Enzymatic steps in fatty acid synthesis and the Kennedy pathway were altered in a HIF-1α-dependent manner, whereas palmitate, stearate, PLD3, and PAFC16 were regulated in a HIF-1α-independent manner.

    “Enzymatic steps in fatty acid synthesis and the Kennedy pathway were altered in a HIF-1α-dependent manner, whereas palmitate, stearate, phospholipase D3 (PLD3), and platelet-activating factor homologous C16 (PAFC16) were regulated in a HIF-1α-independent manner [96].”

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Authors
Valli, A., Rodriguez, M., Moutsianas, L., Fischer, R., Fedele, V., Huang, H.-L., Van Stiphout, R., Jones, D., Mccarthy, M., Vinaxia, M., Igarashi, K., Sato, M., Soga, T., Buffa, F., Mccullagh, J., Yanes, O., Harris, A., & Kessler, B.
Affiliations
  • University of Oxford (GB)
  • Centre for Omic Sciences (ES)
  • Centre for Human Genetics (GB)
  • Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
  • Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
  • Institute for Advanced Biosciences, Keio University (JP)
  • Centre for Omic Sciences, Rovira i Virgili University, Reus, Spain
Corresponding author
  • Harris, Adrian
  • Kessler, Benedikt
Venue
Oncotarget
Published
2014-12-11
Volume
6
Issue
4
Pages
1920-1941
ISSN
1949-2553 (ISSN-L)
OpenAlex
W1884217239
Cited by
79
References
79
Citations by year
2026: 4 · 2025: 6 · 2024: 4 · 2023: 4 · 2022: 8 · 2021: 10 · 2020: 10 · 2019: 8 · 2018: 10 · 2017: 6 · 2016: 6 · 2015: 3
FWCI
1.60
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Oncotarget (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio istituzionale della Ricerca - Bocconi (submittedVersion)
Funders
  • Cancer Research UK (11359, 16466, 18974)
  • National Institute for Health and Care Research (NF-SI-0611-10163)
  • University of Oxford
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
Keywords
HIF-1α, HIF-2α, lipogenesis, lipid metabolism, Kennedy pathway, fatty acid synthesis, lipidomics, PAF, colorectal cancer, HCT116 cells, cancer metabolism, tumor microenvironment
MeSH terms
Endothelial PAS Domain-Containing Protein 1, Acetyl-CoA C-Acyltransferase, Acetyl-CoA Carboxylase, Aged, Fatty Acids, Female, Humans, Lipids, Male, Middle Aged, Platelet Activating Factor, Blotting, Western, Colorectal Neoplasms, Signal Transduction, Cell Hypoxia, Genomics, RNA Interference, Proteomics, HCT116 Cells, Cell Line, Tumor, Lipid Metabolism, Basic Helix-Loop-Helix Transcription Factors, Basic Helix-Loop-Helix Proteins, Hypoxia-Inducible Factor 1, alpha Subunit, Metabolomics

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