Evidence map›Paper›PMID 30285763›Full record

ArticleBMC cancer2018

Engrailed-2 (EN2) - a novel biomarker in epithelial ovarian cancer.

Sophie Elena McGrath, Nicola Annels, Thumuluru K Madhuri, Anil Tailor, Simon A Butler-Manuel, Richard Morgan, Hardev Pandha, Agnieszka Michael

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2018. 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
4.7field-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

16 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  5. Engrailed-2 (EN2) protein in cervical mucus: a novel biomarker for endometrial carcinoma.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
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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 4 institutions in 1 country.

Sophie Elena McGrathOncology, School of Biosciences and Medicine, FHMS, University of Surrey, Leggett Building, Daphne Jackson Road, Guildford, GU2 7WG, UK.
Nicola AnnelsOncology, School of Biosciences and Medicine, FHMS, University of Surrey, Leggett Building, Daphne Jackson Road, Guildford, GU2 7WG, UK.
Thumuluru K MadhuriRoyal Surrey County Hospital, Egerton Road, Guildford, GU2 7XX, UK.
Anil TailorRoyal Surrey County Hospital, Egerton Road, Guildford, GU2 7XX, UK.
Simon A Butler-ManuelRoyal Surrey County Hospital, Egerton Road, Guildford, GU2 7XX, UK.
Richard MorganOncology, School of Biosciences and Medicine, FHMS, University of Surrey, Leggett Building, Daphne Jackson Road, Guildford, GU2 7WG, UK.
Hardev PandhaOncology, School of Biosciences and Medicine, FHMS, University of Surrey, Leggett Building, Daphne Jackson Road, Guildford, GU2 7WG, UK.
Agnieszka MichaelOncology, School of Biosciences and Medicine, FHMS, University of Surrey, Leggett Building, Daphne Jackson Road, Guildford, GU2 7WG, UK. a.michael@surrey.ac.uk.ORCID http://orcid.org/0000-0002-7262-6227
Royal Surrey County Hospital · GBUniversity of Surrey · GBRoyal Marsden NHS Foundation Trust · GBUniversity of Bradford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEpithelial ovarian cancer is a common malignancy, with no clinically approved diagnostic biomarker. Engrailed-2 (EN2) is a homeodomain-containing transcription factor, essential during embryological neural development, which is dysregulated in several cancer types. We evaluated the expression of EN2 in Epithelial ovarian cancer, and reviewed its role as a biomarker.

methodsWe evaluated 8 Epithelial ovarian cancer cell lines, along with > 100 surgical specimens from the Royal Surrey County Hospital (2009-2014). In total, 108 tumours and 5 normal tissue specimens were collected. En2 mRNA was evaluated by semi-quantitative RT-PCR. Histological sub-type, and platinum-sensitive/-resistant status were compared. Protein expression was assessed in cell lines (immunofluorescence), and in > 150 tumours (immunohistochemistry).

resultsEn2 mRNA expression was elevated in serous ovarian tumours compared with normal ovary (p < 0.001), particularly in high-grade serous ovarian cancer (p < 0.0001) and in platinum-resistant tumours (p = 0.0232). Median Overall Survival and Progression-free Survival were reduced with high En2 expression (OS = 28 vs 42 months, p = 0.0329; PFS = 8 vs 27 months; p = 0.0004). Positive cytoplasmic EN2 staining was demonstrated in 78% of Epithelial ovarian cancers, with absence in normal ovary. EN2 positive high-grade serous ovarian cancer patients had a shorter PFS (10 vs 17.5 months; p = 0.0103).

conclusionThe EN2 transcription factor is a novel ovarian cancer biomarker. It demonstrates prognostic value, correlating with worse Overall Survival and Progression-free Survival. It is hoped that further work will validate its use as a biomarker, and provide insight into the role of EN2 in the development, progression and spread of ovarian cancer.

Indexed as

Biomarkers, TumorAdultAgedAged, 80 and overCarcinoma, Ovarian EpithelialCell Line, TumorEngrailed 2 ProteinFemaleFluorescent Antibody TechniqueGene ExpressionHomeodomain ProteinsHumansImmunohistochemistryMiddle AgedNeoplasm GradingNeoplasm StagingBiomarkers, TumorEngrailed 2 ProteinHomeodomain ProteinsNerve Tissue ProteinsRNA, MessengerBiomarkerEngrailed-2Epithelial ovarian cancerPlatinum-resistantSerous

Identifiers

PMID30285763
PMCPMC6171236
OpenAlexW2895474046

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.