Evidence map›Paper›PMID 27775072›Full record

ArticleOncogene2017

Metformin alters DNA methylation genome-wide via the H19/SAHH axis.

T Zhong, Y Men, L Lu, T Geng, J Zhou, A Mitsuhashi, M Shozu, N J Maihle, G G Carmichael, H S Taylor and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

84 citing papers in PubMed, 150 citations in OpenAlex.

  1. Trial
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  6. Tissue Iron Predicts Metformin Responsiveness in a Mouse Model and in Humans with Type 2 Diabetes.Diabetes, metabolic syndrome and obesity : targets and therapy · 2026
    Article
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  8. Article
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  10. Review
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  16. Article
  17. Article
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  19. Dietary restriction in senolysis and prevention and treatment of disease.Critical reviews in food science and nutrition · 2024
    Review
  20. Article

24 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 7 institutions in 3 countries.

T ZhongDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
Y MenDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
L LuDepartment of Chronic Diseases Epidemiology, Yale School of Public Health, Yale University School of Medicine, New Haven, CT, USA.
T GengDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
J ZhouDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
A MitsuhashiDepartment of Reproductive Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.
M ShozuDepartment of Reproductive Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan.
N J MaihleGeorgia Cancer Center, Medical College of Georgia, Augusta, GA, USA.
G G CarmichaelDepartment of Genetics and Genome Sciences, University of Connecticut Health Center, Farmington, CT, USA.
H S TaylorDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
Y HuangDepartment of Obstetrics, Gynecology, and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.
Yale University · USChiba University · JPAugusta University · USFirst Affiliated Hospital of Gannan Medical University · CNUConn Health · USWest China Hospital of Sichuan University · CNZhejiang University · CN

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Nuclear-retained long noncoding RNAsR01HD072418 · NICHD · UNIVERSITY OF CONNECTICUT SCH OF MED/DNT · PI CARMICHAEL, GORDON G · 2013 to 2017
$1.6M
NCATS NIH HHS UL1 TR001863NICHD NIH HHS R01 HD072418
6 · The paper itself

Abstract

The molecular mechanisms underlying the antineoplastic properties of metformin, a first-line drug for type 2 diabetes, remain elusive. Here we report that metformin induces genome-wide alterations in DNA methylation by modulating the activity of S-adenosylhomocysteine hydrolase (SAHH). Exposing cancer cells to metformin leads to hypermethylation of tumor-promoting pathway genes and concomitant inhibition of cell proliferation. Metformin acts by upregulating microRNA let-7 through AMPK activation, leading to degradation of H19 long noncoding RNA, which normally binds to and inactivates SAHH. H19 knockdown activates SAHH, enabling DNA methyltransferase 3B to methylate a subset of genes. This metformin-induced H19 repression and alteration of gene methylation are recapitulated in endometrial cancer tissue samples obtained from patients treated with antidiabetic doses of metformin. Our findings unveil a novel mechanism of action for the drug metformin with implications for the molecular basis of epigenetic dysregulation in cancer. This novel mechanism of action also may be occurring in normal cells.

Indexed as

GenomicsAdenosylhomocysteinaseAMP-Activated Protein KinasesCarcinogenesisDNA (Cytosine-5-)-MethyltransferasesDNA MethylationDNA Methyltransferase 3BEnzyme ActivationHumansMCF-7 CellsMetforminMicroRNAsRNA, Long NoncodingRNA StabilitySignal TransductionUp-RegulationAdenosylhomocysteinaseAMP-Activated Protein KinasesDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3BH19 long non-coding RNAMetforminMicroRNAsmirnlet7 microRNA, humanRNA, Long Noncoding

Identifiers

PMID27775072
PMCPMC5415944
OpenAlexW2537254995

What OpenQuestion holds

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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.