Evidence map›Paper›PMID 23632475›Full record

ArticleBritish journal of cancer2013

Metformin inhibits growth and enhances radiation response of non-small cell lung cancer (NSCLC) through ATM and AMPK.

Y Storozhuk, S N Hopmans, T Sanli, C Barron, E Tsiani, J-C Cutz, G Pond, J Wright, G Singh, T Tsakiridis

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 153 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
153citing papers in PubMed, 3 pooled it
13.8field-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

153 citing papers in PubMed, 3 syntheses or guidelines pooled it, 268 citations in OpenAlex.

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  13. Metabolic stress-mediated cell death and autophagy in human lung cancer cells.The Journal of pharmacology and experimental therapeutics · 2025
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  19. Metformin: A Dual-Role Player in Cancer Treatment and Prevention.International journal of molecular sciences · 2024
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93 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

10 authors at 3 institutions in 1 country.

Y StorozhukDepartment of Research, Juravinski Cancer Center, 699 Concession Street, Hamilton L8V 5C2, ON, Canada.
S N Hopmans
T Sanli
C Barron
E Tsiani
J-C Cutz
G Pond
J Wright
G Singh
T Tsakiridis
McMaster University · CAJuravinski Cancer Centre · CABrock University · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundWe examined the potential of metformin (MET) to enhance non-small cell lung cancer (NSCLC) responses to ionising radiation (IR).

methodsHuman NSCLC cells, mouse embryonic fibroblasts from wild-type and AMP-activated kinase (AMPK) α1/2-subunit(-/-) embryos (AMPKα1/2(-/-)-MEFs) and NSCLC tumours grafted into Balb/c-nude mice were treated with IR and MET and subjected to proliferation, clonogenic, immunoblotting, cell cycle and apoptosis assays and immunohistochemistry (IHC).

resultsMetformin (2.5 μM-5 mM) inhibited proliferation and radio-sensitised NSCLC cells. Metformin (i) activated the ataxia telengiectasia-mutated (ATM)-AMPK-p53/p21(cip1) and inhibited the Akt-mammalian target of rapamycin (mTOR)-eIF4E-binding protein 1 (4EBP1) pathways, (ii) induced G1 cycle arrest and (iii) enhanced apoptosis. ATM inhibition blocked MET and IR activation of AMPK. Non-small cell lung cancer cells with inhibited AMPK and AMPKα1/2(-/-)-MEFs were resistant to the antiproliferative effects of MET and IR. Metformin or IR inhibited xenograft growth and combined treatment enhanced it further than each treatment alone. Ionising radiation and MET induced (i) sustained activation of ATM-AMPK-p53/p21(cip1) and inhibition of Akt-mTOR-4EBP1 pathways in tumours, (ii) reduced expression of angiogenesis and (iii) enhanced expression of apoptosis markers.

conclusionClinically achievable MET doses inhibit NSCLC cell and tumour growth and sensitise them to IR. Metformin and IR mediate their action through an ATM-AMPK-dependent pathway. Our results suggest that MET can be a clinically useful adjunct to radiotherapy in NSCLC.

Indexed as

Adenylate KinaseAnimalsAtaxia Telangiectasia Mutated ProteinsCarcinoma, Non-Small-Cell LungCell Cycle ProteinsCell ProliferationCells, CulturedDNA-Binding ProteinsDown-RegulationEmbryo, MammalianHumansLung NeoplasmsMetforminMiceMice, Inbred BALB CMice, KnockoutAdenylate KinaseAtaxia Telangiectasia Mutated ProteinsATM protein, humanAtm protein, mouseCell Cycle ProteinsDNA-Binding ProteinsMetforminProtein Serine-Threonine KinasesRadiation-Sensitizing AgentsTumor Suppressor Proteins

Identifiers

PMID23632475
PMCPMC3670487
OpenAlexW2076908467

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.