Evidence map›Paper›PMID 25817828›Full record

ArticleThe Journal of steroid biochemistry and molecular biology2015

Local estrogen metabolism in epithelial ovarian cancer suggests novel targets for therapy.

Xia Ren, Xuan Wu, Stephen G Hillier, K Scott Fegan, Hilary O D Critchley, J Ian Mason, Sana Sarvi, Christopher R Harlow

Open access · hybridAbstract read
In one paragraph

Article in The Journal of steroid biochemistry and molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 2 syntheses or guidelines pooled it, 32 citations in OpenAlex.

  1. rs762855 single nucleotide polymorphism modulates the risk for diffuse-type gastric cancer in females: a genome-wide association study in the Korean population.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
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  16. Melatonin: An Anti-Tumor Agent in Hormone-Dependent Cancers.International journal of endocrinology · 2018
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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

8 authors at 1 institution in 1 country.

Xia RenMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
Xuan WuMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
Stephen G HillierMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
K Scott FeganMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
Hilary O D CritchleyMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
J Ian MasonMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
Sana SarviMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom.
Christopher R HarlowMRC Centre for Reproductive Health, The University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, Scotland EH16 4TJ, United Kingdom. Electronic address: c.harlow@ed.ac.uk.
MRC Centre for Reproductive Health · GB

Funding

Medical Research Council G0500047Medical Research Council G0900550Medical Research Council G1002033
6 · The paper itself

Abstract

Epithelial ovarian cancer (EOC) accounts for about 90% of malignant ovarian tumors, and estrogen is often implicated in disease progression. We therefore compared the potential for gating of estrogen action via pre-receptor metabolism in normal human ovarian surface epithelium (OSE), EOC and selected EOC cell lines (SKOV3 and PEO1). Steroid sulphatase (STS), estrogen sulfotransferase (EST), 17β-hydroxysteroid dehydrogenases 2 (17BHSD2) and 5 (17BHSD5) mRNAs, proteins and enzymatic activities were all detectable in primary cell cultures of OSE and EOC, whereas aromatase and 17BHSD1 expression was negligible. qRT-PCR assay on total mRNA revealed significantly higher EST mRNA expression in OSE compared to EOC (P<0.05). Radioenzymatic measurements confirmed reduced sulfoconjugation (neutralization) of free estrogen in EOC relative to OSE. OSE cells were more effective at converting free [(3)H]-E1 to [(3)H]-E1S or [(3)H]-E2S, while EOC cell lines mainly converted [(3)H]-E1 to [(3)H]-E2 with minimal formation of [(3)H]-E1S or [(3)H]-E2S. IL1α treatment suppressed EST (P<0.01) and 17BHSD2 (P<0.001) mRNA levels in OSE and stimulated STS mRNA levels (P<0.001) in cancer (SKOV3) cells. These results show that estrogen is differentially metabolized in OSE and EOC cells, with E2 'activation' from conjugated estrogen predominating in EOC. Inflammatory cytokines may further augment the local production of E2 by stimulating STS and suppressing EST. We conclude that local estrogen metabolism may be a target for EOC treatment.

Indexed as

3-Hydroxysteroid DehydrogenasesAldo-Keto Reductase Family 1 Member C3BiotransformationCarcinoma, Ovarian EpithelialCell Line, TumorEpithelial CellsEstradiol DehydrogenasesEstrogensFemaleGene Expression RegulationHumansHydroxyprostaglandin DehydrogenasesInterleukin-1alphaNeoplasms, Glandular and EpithelialOvarian NeoplasmsOvary3-Hydroxysteroid DehydrogenasesAKR1C3 protein, humanAldo-Keto Reductase Family 1 Member C3Estradiol DehydrogenasesEstrogensestrone sulfotransferaseHSD17B2 protein, humanHydroxyprostaglandin DehydrogenasesIL1A protein, humanInterleukin-1alphaRNA, MessengerSteryl-SulfataseSulfotransferasesTritiumEpithelial ovarian cancerEstrogenEstrogen sulfotransferaseOvarian surface epitheliumSteroid sulfatase

Identifiers

PMID25817828
PMCPMC4429663
OpenAlexW2069484422

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.