Evidence map›Paper›PMID 29211738›Full record

ArticlePloS one2017

Metformin inhibits the development, and promotes the resensitization, of treatment-resistant breast cancer.

Gerald Davies, Liubov Lobanova, Wojciech Dawicki, Gary Groot, John R Gordon, Matthew Bowen, Troy Harkness, Terra Arnason

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

23 citing papers in PubMed, 55 citations in OpenAlex.

  1. Review
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  3. Article
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  6. Article
  7. Article
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  9. Article
  10. Metformin and Cancer, an Ambiguanidous Relationship.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Article
  19. PYK2 promotes HER2-positive breast cancer invasion.Journal of experimental & clinical cancer research : CR · 2019
    Article
  20. Review
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 1 institution in 1 country.

Gerald DaviesDepartment of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Liubov LobanovaDepartment of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Wojciech DawickiDepartment of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Gary GrootDepartment of Surgery, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
John R GordonDepartment of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Matthew BowenDepartment of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Troy HarknessDepartment of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Terra ArnasonDepartment of Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.ORCID http://orcid.org/0000-0002-5793-7713
University of Saskatchewan · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Multiple drug resistant (MDR) malignancy remains a predictable and often terminal event in cancer therapy, and affects individuals with many cancer types, regardless of the stage at which they were originally diagnosed or the interval from last treatment. Protein biomarkers of MDR are not globally used for clinical decision-making, but include the overexpression of drug-efflux pumps (ABC transporter family) such as MDR-1 and BCRP, as well as HIF1α, a stress responsive transcription factor found elevated within many MDR tumors. Here, we present the important in vitro discovery that the development of MDR (in breast cancer cells) can be prevented, and that established MDR could be resensitized to therapy, by adjunct treatment with metformin. Metformin is prescribed globally to improve insulin sensitivity, including in those individuals with Type 2 Diabetes Mellitus (DM2). We demonstrate the effectiveness of metformin in resensitizing MDR breast cancer cell lines to their original treatment, and provide evidence that metformin may function through a mechanism involving post-translational histone modifications via an indirect histone deacetylase inhibitor (HDACi) activity. We find that metformin, at low physiological concentrations, reduces the expression of multiple classic protein markers of MDR in vitro and in preliminary in vivo models. Our demonstration that metformin can prevent MDR development and resensitize MDR cells to chemotherapy in vitro, provides important medical relevance towards metformin's potential clinical use against MDR cancers.

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorCell ProliferationDoxorubicinDrug Resistance, NeoplasmDrug SynergismEstrogen Receptor alphaFemaleHumansMetforminMiceXenograft Model Antitumor AssaysDoxorubicinEstrogen Receptor alphaMetformin

Identifiers

PMID29211738
PMCPMC5718420
OpenAlexW2773697958

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.