Evidence map›Paper›PMID 34089362›Full record

ArticleJournal of cancer research and clinical oncology2021

Expression of estrogen-related receptors in ovarian cancer and impact on survival.

Susanne Schüler-Toprak, Florian Weber, Maciej Skrzypczak, Olaf Ortmann, Oliver Treeck

Open access · hybridAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
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  3. Study of Estrogen Receptor Alpha Gene Polymorphisms (International journal of molecular sciences · 2026
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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

5 authors at 2 institutions in 2 countries.

Susanne Schüler-Toprak *Department of Gynecology and Obstetrics, University Medical Center Regensburg, Landshuter Str. 65, 93053, Regensburg, Germany. Susanne.Schueler@klinik.uni-regensburg.de.ORCID http://orcid.org/0000-0003-4791-2595
Florian Weber *Department of Pathology, University Medical Center Regensburg, Franz-Josef Strauß Allee11, 93053, Regensburg, Germany.
Maciej SkrzypczakSecond Department of Gynecology, Medical University of Lublin, Jaczewskiego 8, 20-090, Lublin, Poland.
Olaf OrtmannDepartment of Gynecology and Obstetrics, University Medical Center Regensburg, Landshuter Str. 65, 93053, Regensburg, Germany.
Oliver TreeckDepartment of Gynecology and Obstetrics, University Medical Center Regensburg, Landshuter Str. 65, 93053, Regensburg, Germany.
University Hospital Regensburg · DEMedical University of Lublin · PL

Funding

Uniwersytet Medyczny w Lublinie Dz. St. 327/18
6 · The paper itself

Abstract

purposeThis study further approaches the role of estrogen-related receptors (ERRs) in ovarian cancer. Protein expression of ERRα, ERRβ and ERRγ in ovarian cancer was assessed and was correlated with ovarian cancer markers, steroid hormone receptors and cancer-associated genes. Additionally, we examined to what extent expression of ERRs affects survival of ovarian cancer patients.

methodsFor this purpose, we established a tissue microarray from 208 ovarian cancer patients and performed immunohistochemical analyses of the mentioned proteins.

resultsERRα and ERRγ protein could be detected at different levels in more than 90% of all ovarian cancer tissues, whereas expression of ERRβ was observed in 82.2% of the cases. ERRα was found to positively correlate with ovarian cancer marker CEA (p < 0.005) and ERRγ correlated with ERα (p < 0.001). Univariate survival analyses revealed that ERRα expression did not affect overall (OS) or progression-free survival (PFS) of ovarian cancer patients. In contrast, higher expression of ERRβ in serous ovarian cancers was found to lead to a significantly decreased OS (p < 0.05). The strongest impact on survival was exhibited by ERRγ. Lower expression of this receptor in women with serous ovarian cancers indicated significantly increased OS compared to those with higher levels of ERRγ (p < 0.05). Multivariate survival analyses revealed ERRγ as an independent prognostic marker regarding OS of patients with serous ovarian cancer.

conclusionOur data demonstrating that ERR proteins are frequently expressed in ovarian cancer and high levels of ERRβ and ERRγ significantly decreased OS of serous ovarian cancer patients suggest that these proteins might be interesting therapy targets in this cancer entity.

Indexed as

Adenocarcinoma, Clear CellAdenocarcinoma, MucinousBiomarkers, TumorCystadenocarcinoma, SerousEndometrial NeoplasmsERRalpha Estrogen-Related ReceptorFemaleFollow-Up StudiesHumansOvarian NeoplasmsPrognosisReceptors, EstrogenRetrospective StudiesSurvival RateBiomarkers, TumorERRalpha Estrogen-Related ReceptorESRRG protein, humanestrogen receptor-related receptor betaReceptors, EstrogenEstrogen-related receptorsOvarian cancerOverall survivalProgression-free survivalTissue microarray

Identifiers

PMID34089362
PMCPMC8310835
OpenAlexW3164783753

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Registered trials

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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.