Evidence map›Paper›PMID 32398698›Full record

ArticleScientific reports2020

Methotrexate elicits pro-respiratory and anti-growth effects by promoting AMPK signaling.

David J Papadopoli, Eric H Ma, Dominic Roy, Mariana Russo, Gaëlle Bridon, Daina Avizonis, Russell G Jones, Julie St-Pierre

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 29% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Mesenchymal Stem Cell-Based Therapy for Rheumatoid Arthritis.International journal of molecular sciences · 2021
    Review
  5. Article
  6. Review
  7. Juvenile Dermatomyositis: New Clues to Diagnosis and Therapy.Current treatment options in rheumatology · 2021
    Article
  8. Review
  9. Article
  10. Article
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

8 authors at 3 institutions in 2 countries.

David J PapadopoliDepartment of Biochemistry, McGill University, Montréal, QC, H3G 1Y6, Canada.
Eric H MaGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Dominic RoyGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Mariana RussoGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Gaëlle BridonGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Daina AvizonisGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Russell G JonesGoodman Cancer Research Centre, Montréal, QC, H3A 1A3, Canada.
Julie St-PierreDepartment of Biochemistry, McGill University, Montréal, QC, H3G 1Y6, Canada. julie.st-pierre@uottawa.ca.ORCID http://orcid.org/0000-0002-2815-7099
Occupational Cancer Research Centre · CAVan Andel Institute · USUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

One-carbon metabolism fuels the high demand of cancer cells for nucleotides and other building blocks needed for increased proliferation. Although inhibitors of this pathway are widely used to treat many cancers, their global impact on anabolic and catabolic processes remains unclear. Using a combination of real-time bioenergetics assays and metabolomics approaches, we investigated the global effects of methotrexate on cellular metabolism. We show that methotrexate treatment increases the intracellular concentration of the metabolite AICAR, resulting in AMPK activation. Methotrexate-induced AMPK activation leads to decreased one-carbon metabolism gene expression and cellular proliferation as well as increased global bioenergetic capacity. The anti-proliferative and pro-respiratory effects of methotrexate are AMPK-dependent, as cells with reduced AMPK activity are less affected by methotrexate treatment. Conversely, the combination of methotrexate with the AMPK activator, phenformin, potentiates its anti-proliferative activity in cancer cells. These data highlight a reciprocal effect of methotrexate on anabolic and catabolic processes and implicate AMPK activation as a metabolic determinant of methotrexate response.

Indexed as

AMP-Activated Protein KinasesAntineoplastic AgentsBiguanidesCell Line, TumorCell ProliferationCell RespirationDrug SynergismHumansMethotrexateMitochondriaSignal TransductionAMP-Activated Protein KinasesAntineoplastic AgentsBiguanidesMethotrexate

Identifiers

PMID32398698
PMCPMC7217946
OpenAlexW3024456898

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.