Evidence map›Paper›PMID 34799701›Full record

ArticleNature metabolism2021

Methionine synthase is essential for cancer cell proliferation in physiological folate environments.

Mark R Sullivan, Alicia M Darnell, Montana F Reilly, Tenzin Kunchok, Lena Joesch-Cohen, Daniel Rosenberg, Ahmed Ali, Matthew G Rees, Jennifer A Roth, Caroline A Lewis and 1 more

Open access · greenAbstract read
In one paragraph

Article in Nature metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
11.6field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

78 citing papers in PubMed, 103 citations in OpenAlex.

  1. A guide to B cell metabolism.Nature reviews. Immunology · 2026
    Review
  2. Mitochondrial depolarization stabilizes the vitamin BProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  18. An atlas of ferroptosis-induced secretomes.Cell death and differentiation · 2025
    Article
  19. Article
  20. Article

18 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Mark R Sullivan *Koch Institute for Integrative Cancer Research, Cambridge, MA, USA.ORCID http://orcid.org/0000-0001-5765-0459
Alicia M Darnell *Koch Institute for Integrative Cancer Research, Cambridge, MA, USA.
Montana F ReillyKoch Institute for Integrative Cancer Research, Cambridge, MA, USA.
Tenzin KunchokWhitehead Institute for Biomedical Research, Cambridge, MA, USA.
Lena Joesch-CohenBroad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA.
Daniel RosenbergBroad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA.
Ahmed AliKoch Institute for Integrative Cancer Research, Cambridge, MA, USA.
Matthew G ReesBroad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA.
Jennifer A RothBroad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA.ORCID http://orcid.org/0000-0002-5117-5586
Caroline A LewisWhitehead Institute for Biomedical Research, Cambridge, MA, USA.ORCID http://orcid.org/0000-0003-1787-5084
Matthew G Vander HeidenKoch Institute for Integrative Cancer Research, Cambridge, MA, USA. mvh@mit.edu.ORCID http://orcid.org/0000-0002-6702-4192
Broad Institute · USAllen Institute · USWhitehead Institute for Biomedical Research · US

Funding

VIRUS PRODUCTION COREP30CA014051 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI MATTHEW G. VANDER HEIDEN · 1985 to 2026
$93.9M
PRE-DOCTORAL TRAINING IN THE BIOLOGICAL SCIENCEST32GM007287 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI BELL, STEPHEN P., KEATING, AMY E · 1985 to 2019
$40.8M
Understanding the role of metabolism in cancerR35CA242379 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI VANDER HEIDEN, MATTHEW G. · 2019 to 2025
$5.8M
Analysis of cancer cell metabolism in diverse environmental conditionsR01CA201276 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI VANDER HEIDEN, MATTHEW G., VITKUP, DENNIS · 2016 to 2020
$3.0M
Howard Hughes Medical InstituteNCI NIH HHS P30 CA014051NCI NIH HHS R01 CA201276NCI NIH HHS R35 CA242379NIGMS NIH HHS T32 GM007287
6 · The paper itself

Abstract

Folate metabolism can be an effective target for cancer treatment. However, standard cell culture conditions utilize folic acid, a non-physiological folate source for most tissues. We find that the enzyme that couples folate and methionine metabolic cycles, methionine synthase, is required for cancer cell proliferation and tumour growth when 5-methyl tetrahydrofolate (THF), the major folate found in circulation, is the extracellular folate source. In such physiological conditions, methionine synthase incorporates 5-methyl THF into the folate cycle to maintain intracellular levels of the folates needed for nucleotide production. 5-methyl THF can sustain intracellular folate metabolism in the absence of folic acid. Therefore, cells exposed to 5-methyl THF are more resistant to methotrexate, an antifolate drug that specifically blocks folic acid incorporation into the folate cycle. Together, these data argue that the environmental folate source has a profound effect on folate metabolism, determining how both folate cycle enzymes and antifolate drugs impact proliferation.

Indexed as

5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseCell Line, TumorCell ProliferationDrug Resistance, NeoplasmFolic AcidGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticGene Knockdown TechniquesHumansMethotrexateNeoplasmsTetrahydrofolates5,6,7,8-tetrahydrofolic acid5-Methyltetrahydrofolate-Homocysteine S-MethyltransferaseFolic AcidMethotrexateMTR protein, humanTetrahydrofolates

Identifiers

PMID34799701
PMCPMC8608285
OpenAlexW3214041919

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.