Evidence map›Paper›PMID 32046384›Full record

Trial reportReproductive sciences (Thousand Oaks, Calif.)2020

Metformin Promotes Anti-tumor Biomarkers in Human Endometrial Cancer Cells.

John Mark P Pabona, Alexander F Burnett, Dustin M Brown, Charles M Quick, Frank A Simmen, Maria Theresa E Montales, Shi J Liu, Tyler Rose, Iad Alhallak, Eric R Siegel and 1 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Reproductive sciences (Thousand Oaks, Calif.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Effects of Obesity and Calorie Restriction on Cancer Development.International journal of molecular sciences · 2023
    Review
  6. Review
  7. Metformin and Cancer, an Ambiguanidous Relationship.Pharmaceuticals (Basel, Switzerland) · 2022
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Current mechanisms in obesity and tumor progression.Current opinion in clinical nutrition and metabolic care · 2020
    Review
  14. Article
  15. Review
  16. 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

11 authors at 2 institutions in 1 country.

John Mark P PabonaDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Alexander F BurnettDepartment of Obstetrics & Gynecology, Division of Gynecologic Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA.
Dustin M BrownDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Charles M QuickThe Winthrop P Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Frank A SimmenDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Maria Theresa E MontalesDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Shi J LiuDepartment of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Tyler RoseDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Iad AlhallakDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Eric R SiegelDepartment of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Rosalia Cm SimmenDepartment of Physiology & Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA. simmenrosalia@uams.edu.
University of Arkansas for Medical Sciences · USWinthrop Rockefeller Foundation · US

Funding

Arkansas Center for Clinical and Translational ResearchUL1TR000039 · NCATS · UNIV OF ARKANSAS FOR MED SCIS · PI BECK, CORNELIA MARIE, JAMES, LAURA P · 2012 to 2014
$10.0M
Dietary Factors in Colon Cancer PreventionR01CA136493 · NCI · UNIV OF ARKANSAS FOR MED SCIS · PI SIMMEN, FRANK ALBERT · 2010 to 2014
$1.4M
NCATS NIH HHS UL1 TR000039NCI NIH HHS R01 CA136493
6 · The paper itself

Abstract

Metformin (MET) is increasingly implicated in reducing the incidence of multiple cancer types in patients with diabetes. However, similar effects of MET in non-diabetic women with endometrial cancer (EC) remain unknown. In a pilot study, obese non-diabetic women diagnosed with type 1, grade 1/2 EC, and consenting to participate were randomly assigned to receive MET or no MET (control (CON)) during the pre-surgical window between diagnosis and hysterectomy. Endometrial tumors obtained at surgery (MET, n = 4; CON, n = 4) were analyzed for proliferation (Ki67), apoptosis (TUNEL), and nuclear expression of ERα, PGR, PTEN, and KLF9 proteins in tumor glandular epithelial (GE) and stromal (ST) cells. The percentages of immunopositive cells for PGR and for KLF9 in GE and for PTEN in ST were higher while those for ERα in GE but not ST were lower, in tumors of MET vs. CON patients. The numbers of Ki67- and TUNEL-positive cells in tumor GE and ST did not differ between groups. In human Ishikawa endometrial cancer cells, MET treatment (60 μM) decreased cell numbers and elicited distinct temporal changes in ESR1, KLF9, PGR, PGR-B, KLF4, DKK1, and other tumor biomarker mRNA levels. In the context of reduced KLF9 expression (by siRNA targeting), MET rapidly amplified PGR, PGR-B, and KLF4 transcript levels. Our findings suggest that MET acts directly in EC cells to modify steroid receptor expression and signaling network and may constitute a preventative strategy against EC in high-risk non-diabetic women.

Indexed as

ApoptosisBiomarkers, TumorCell ProliferationEndometrial NeoplasmsEndometriumEstrogen Receptor alphaFemaleHumansHypoglycemic AgentsKruppel-Like Factor 4Kruppel-Like Transcription FactorsMetforminMiddle AgedPilot ProjectsPreoperative PeriodPTEN PhosphohydrolaseBiomarkers, TumorEstrogen Receptor alphaHypoglycemic AgentsKLF4 protein, humanKLF9 protein, humanKruppel-Like Factor 4Kruppel-Like Transcription FactorsMetforminPTEN PhosphohydrolaseReceptors, ProgesteroneEndometrial cancerEstrogen receptorKLF9MetforminProgesterone receptor

Identifiers

PMID32046384
PMCPMC7077930
OpenAlexW3005851693

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.