Cited by 138Metabolism, Diabetes, and CancerCancer, Hypoxia, and MetabolismPI3K/AKT/mTOR signaling in cancer

The DOI matches its Crossref record; 47 of the 47 references it cites were found in a registry or an index.

Serine Deprivation Enhances Antineoplastic Activity of Biguanides

Gravel, Simon-Pierre, Hulea, Laura, Toban, Nader, Birman, Elena, Blouin, Marie-José, Zakikhani, Mahvash, Zhao, Yunhua, Topisirovic, Ivan, St-Pierre, Julie, Pollak, Michael·2014·Cancer Research

Abstract

Metformin, a biguanide widely used in the treatment of type II diabetes, clearly exhibits antineoplastic activity in experimental models and has been reported to reduce cancer incidence in diabetics. There are ongoing clinical trials to evaluate its antitumor properties, which may relate to its fundamental activity as an inhibitor of oxidative phosphorylation. Here, we show that serine withdrawal increases the antineoplastic effects of phenformin (a potent biguanide structurally related to metformin). Serine synthesis was not inhibited by biguanides. Instead, metabolic studies indicated a requirement for serine to allow cells to compensate for biguanide-induced decrease in oxidative phosphorylation by upregulating glycolysis. Furthermore, serine deprivation modified the impact of metformin on the relative abundance of metabolites within the citric acid cycle. In mice, a serine-deficient diet reduced serine levels in tumors and significantly enhanced the tumor growth–inhibitory actions of biguanide treatment. Our results define a dietary manipulation that can enhance the efficacy of biguanides as antineoplastic agents that target cancer cell energy metabolism. Cancer Res; 74(24); 7521–33. ©2014 AACR.

Overview

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Crossref · 10.1158/0008-5472.can-14-2643-t

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Metadata

Authors
Gravel, S.-P., Hulea, L., Toban, N., Birman, E., Blouin, M.-J., Zakikhani, M., Zhao, Y., Topisirovic, I., St-Pierre, J., & Pollak, M.
Affiliations
  • McGill University (CA)
  • Jewish General Hospital (CA)
  • 2Department of Biochemistry, McGill University, Montreal, Quebec, Canada.
  • 1Goodman Cancer Research Centre, McGill University, Montreal, Quebec, Canada.
  • 3Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada.
Venue
Cancer Research
Published
2014-12-14
Volume
74
Issue
24
Pages
7521-7533
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2016133306
Cited by
138
References
47
Citations by year
2026: 3 · 2025: 10 · 2024: 13 · 2023: 14 · 2022: 15 · 2021: 24 · 2020: 15 · 2019: 13 · 2018: 8 · 2017: 7 · 2016: 11 · 2015: 5
FWCI
3.14
Type
journal article
Language
en
Open access
closed
Locations
  • Cancer Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research (MOP115-195, FRN53888, 106603_1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
biguanides, metformin, phenformin, anticancer activity, oxidative phosphorylation inhibition, glycolysis, cancer cell energy metabolism, tumor growth inhibition, dietary intervention
MeSH terms
Animals, Biguanides, Glycolysis, Humans, Metformin, Neoplasms, Oxidative Phosphorylation, Phenformin, Serine, Xenograft Model Antitumor Assays, Cell Line, Tumor, Mice

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