Evidence map›Paper›PMID 32813115›Full record

ArticleJournal of cancer research and clinical oncology2020

G protein-coupled estrogen receptor 1 (GPER-1) and agonist G-1 inhibit growth of ovarian cancer cells by activation of anti-tumoral transcriptome responses: impact of GPER-1 mRNA on survival.

Susanne Schüler-Toprak, Maciej Skrzypczak, Tanja Ignatov, Atanas Ignatov, Olaf Ortmann, Oliver Treeck

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  4. Epigenetic Modulation of Estrogen Receptor Signaling in Ovarian Cancer.International journal of molecular sciences · 2024
    Review
  5. Article
  6. Review
  7. Article
  8. GPER: An Estrogen Receptor Key in Metastasis and Tumoral Microenvironments.International journal of molecular sciences · 2023
    Review
  9. Review
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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

6 authors at 2 institutions in 2 countries.

Susanne Schüler-ToprakDepartment of Obstetrics and Gynecology, Laboratory for Molecular Oncology, University Medical Center Regensburg, Landshuter Street 65, 93053, Regensburg, Germany.
Maciej SkrzypczakSecond Department of Gynecology, Medical University of Lublin, Jaczewskiego 8, 20-090, Lublin, PL, Poland.
Tanja IgnatovDepartment of Obstetrics and Gynecology, Laboratory for Molecular Oncology, University Medical Center Regensburg, Landshuter Street 65, 93053, Regensburg, Germany.
Atanas IgnatovDepartment of Obstetrics and Gynecology, Laboratory for Molecular Oncology, University Medical Center Regensburg, Landshuter Street 65, 93053, Regensburg, Germany.
Olaf OrtmannDepartment of Obstetrics and Gynecology, Laboratory for Molecular Oncology, University Medical Center Regensburg, Landshuter Street 65, 93053, Regensburg, Germany.
Oliver TreeckDepartment of Obstetrics and Gynecology, Laboratory for Molecular Oncology, University Medical Center Regensburg, Landshuter Street 65, 93053, Regensburg, Germany. otreeck@caritasstjosef.de.ORCID http://orcid.org/0000-0003-2353-9693
University Hospital Regensburg · DEMedical University of Lublin · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe present study intended to further elucidate the role of G protein-coupled estrogen receptor 1 (GPER-1) in ovarian cancer by comparing the effects of a GPER-1 knockdown and treatment with its agonist G-1 on cell growth, apoptosis, and the transcriptome of two ovarian cancer cell lines. Furthermore, the role of GPER-1 in ovarian cancer survival was examined.

methodsGPER-1 expression in OVCAR-3 and OAW-42 ovarian cancer cells was knocked down by RNAi. The effects on cell growth were measured by means of the fluorimetric cell titer blue assay and on the transcriptome by Affymetrix GeneChip analysis. The effect of GPER-1 on patient's survival was examined using open source mRNA and clinical data of 1657 ovarian cancer patients.

resultsGPER-1 knockdown resulted in a significant growth stimulation of both cell lines, whereas treatment with agonist G-1 decreased growth of both cell lines in a dose-dependent manner. Transcriptome analyses revealed a set of 18 genes being conversely regulated after GPER-1 knockdown and G-1 treatment. Generally, treatment with G-1 led to a transcriptome response associated with growth inhibition. In contrast, knockdown of GPER-1 exerted opposite effects, stimulating pathways activating mitosis, but inhibiting pathways associated with apoptosis or interferon signaling. Further analyses using open-access mRNA and clinical data by bioinformatical online tools revealed a longer OS (HR = 0.86, p = 0.057) and PFS (HR = 0.81, p = 0.0035) of ovarian cancer patients with high GPER-1 mRNA expression.

conclusionsThe results of this study clearly support the hypothesis that GPER-1 acts as a tumor suppressor in ovarian cancer.

Indexed as

ApoptosisCell Line, TumorCell ProliferationCyclopentanesFemaleGene Expression ProfilingGene Expression Regulation, NeoplasticHumansOvarian NeoplasmsQuinolinesReceptors, EstrogenReceptors, G-Protein-CoupledRNA, MessengerTranscriptome1-(4-(6-bromobenzo(1,3)dioxol-5-yl)-3a,4,5,9b-tetrahydro-3H-cyclopenta(c)quinolin-8-yl)ethanoneCyclopentanesGPER1 protein, humanQuinolinesReceptors, EstrogenReceptors, G-Protein-CoupledRNA, MessengerDNA microarrayG-1G-protein-coupled estrogen receptorOvarian cancer

Identifiers

PMID32813115
PMCPMC11804372
OpenAlexW3070792027

What Socratic holds

Textmetadata
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 Socratic graph.