Cited by 177Cancer, Hypoxia, and MetabolismFolate and B Vitamins ResearchAmino Acid Enzymes and Metabolism

Serine one-carbon catabolism with formate overflow

Open access
Meiser, Johannes, Tumanov, Sergey, Maddocks, Oliver, Labuschagne, Christiaan Fred, Athineos, Dimitris, Van Den Broek, Niels, Mackay, Gillian M., Gottlieb, Eyal +4 more·2016·Science Advances

Abstract

Serine catabolism to glycine and a one-carbon unit has been linked to the anabolic requirements of proliferating mammalian cells. However, genome-scale modeling predicts a catabolic role with one-carbon release as formate. We experimentally prove that in cultured cancer cells and nontransformed fibroblasts, most of the serine-derived one-carbon units are released from cells as formate, and that formate release is dependent on mitochondrial reverse 10-CHO-THF synthetase activity. We also show that in cancer cells, formate release is coupled to mitochondrial complex I activity, whereas in nontransformed fibroblasts, it is partially insensitive to inhibition of complex I activity. We demonstrate that in mice, about 50% of plasma formate is derived from serine and that serine starvation or complex I inhibition reduces formate synthesis in vivo. These observations transform our understanding of one-carbon metabolism and have implications for the treatment of diabetes and cancer with complex I inhibitors.

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  • Serine production is of particular significance because serine is a major substrate for the folate/one-carbon cycle whose metabolites contribute to various cellular biosynthetic and regulatory processes.

    “Of particular significance is serine production because it is a major substrate for the folate/one-carbon cycle whose metabolites contribute to various cellular biosynthetic and regulatory processes (212, 213).”

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  1. [7]D. Voet, J. G. Voet, Biochemistry (John Wiley & Sons Inc., ed. 4, 2011).

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Authors
Meiser, J., Tumanov, S., Maddocks, O., Labuschagne, C. F., Athineos, D., Van Den Broek, N., Mackay, G. M., Gottlieb, E., Blyth, K., Vousden, K., Kamphorst, J. J., & Vazquez, A.
Affiliations
  • Cancer Research UK Scotland Institute (GB)
  • University of Glasgow (GB)
  • Cancer Research UK Beatson Institute, Glasgow, UK
Venue
Science Advances
Published
2016-10-07
Volume
2
Issue
10
Pages
e1601273-e1601273
ISSN
2375-2548 (ISSN-L)
OpenAlex
W2539462439
Cited by
174
References
30
Citations by year
2026: 14 · 2025: 16 · 2024: 31 · 2023: 17 · 2022: 20 · 2021: 18 · 2020: 17 · 2019: 14 · 2018: 12 · 2017: 15
FWCI
5.69
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Science Advances (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (acceptedVersion)
Funders
  • Cancer Research UK (ID0EQQBI11250, C596/A21140, ID0EXUBI11251, C596/A18076, ID0EIVBI11252, C596/A17196)
  • DFG Fellowship Grant (ID0ET2BI11253, ME 4636/2-1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Health Sciences › Medicine › Rheumatology › Folate and B Vitamins Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
Keywords
serine catabolism, one-carbon metabolism, mitochondrial complex I, cancer cells, fibroblasts, complex I inhibitors, glycine synthesis

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