Evidence map›Paper›PMID 22915211›Full record

ArticleInternational journal of cancer2013

Gene expression and epigenetic discovery screen reveal methylation of SFRP2 in prostate cancer.

Antoinette S Perry, Gillian O'Hurley, Omer A Raheem, Kevin Brennan, Simon Wong, Anthony O'Grady, Anne-Marie Kennedy, Laure Marignol, Therese M Murphy, Linda Sullivan and 8 more

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in International journal of cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.7field-weighted citation impact, top 16% 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, 44 citations in OpenAlex.

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  11. Oncogenic role of SFRP2 in p53-mutant osteosarcoma development via autocrine and paracrine mechanism.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
  13. WNT signalling in prostate cancer.Nature reviews. Urology · 2017
    Review
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  15. Article
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

18 authors at 8 institutions in 2 countries.

Antoinette S PerryProstate Molecular Oncology, Department of Clinical Medicine, Institute of Molecular Medicine, Trinity College Dublin, Ireland. aperry@tcd.ie
Gillian O'Hurley
Omer A Raheem
Kevin Brennan
Simon Wong
Anthony O'Grady
Anne-Marie Kennedy
Laure Marignol
Therese M Murphy
Linda Sullivan
Ciara Barrett
Barbara Loftus
John Thornhill
Stephen M Hewitt
Mark Lawler
Elaine Kay
Thomas Lynch
Donal Hollywood
Molecular Medicine Ireland · IEBeaumont Hospital · IESt. James's Hospital · IETallaght University Hospital · IECenter for Cancer Research · USIn-Q-Tel · USIrish Centre for High-End Computing · IETrinity College Dublin · IE

Funding

Experimental Pathology Laboratory (EPL)ZICBC011638 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI HEWITT, STEPHEN · 2015 to 2025
$16.6M
Tissue Array Research ProgramZICBC010923 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI HEWITT, STEPHEN · 2009 to 2014
$4.7M
Intramural NIH HHS ZIC BC011638
6 · The paper itself

Abstract

Aberrant activation of Wnts is common in human cancers, including prostate. Hypermethylation associated transcriptional silencing of Wnt antagonist genes SFRPs (Secreted Frizzled-Related Proteins) is a frequent oncogenic event. The significance of this is not known in prostate cancer. The objectives of our study were to (i) profile Wnt signaling related gene expression and (ii) investigate methylation of Wnt antagonist genes in prostate cancer. Using TaqMan Low Density Arrays, we identified 15 Wnt signaling related genes with significantly altered expression in prostate cancer; the majority of which were upregulated in tumors. Notably, histologically benign tissue from men with prostate cancer appeared more similar to tumor (r = 0.76) than to benign prostatic hyperplasia (BPH; r = 0.57, p < 0.001). Overall, the expression profile was highly similar between tumors of high (≥ 7) and low (≤ 6) Gleason scores. Pharmacological demethylation of PC-3 cells with 5-Aza-CdR reactivated 39 genes (≥ 2-fold); 40% of which inhibit Wnt signaling. Methylation frequencies in prostate cancer were 10% (2/20) (SFRP1), 64.86% (48/74) (SFRP2), 0% (0/20) (SFRP4) and 60% (12/20) (SFRP5). SFRP2 methylation was detected at significantly lower frequencies in high-grade prostatic intraepithelial neoplasia (HGPIN; 30%, (6/20), p = 0.0096), tumor adjacent benign areas (8.82%, (7/69), p < 0.0001) and BPH (11.43% (4/35), p < 0.0001). The quantitative level of SFRP2 methylation (normalized index of methylation) was also significantly higher in tumors (116) than in the other samples (HGPIN = 7.45, HB = 0.47, and BPH = 0.12). We show that SFRP2 hypermethylation is a common event in prostate cancer. SFRP2 methylation in combination with other epigenetic markers may be a useful biomarker of prostate cancer.

Indexed as

DNA MethylationEpigenesis, GeneticGene Expression ProfilingAdultAgedCell Line, TumorHumansMaleMembrane ProteinsMiddle AgedPromoter Regions, GeneticProstatic NeoplasmsReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionSecreted Frizzled-Related ProteinsMembrane ProteinsSecreted Frizzled-Related ProteinsSFRP2 protein, human

Identifiers

PMID22915211
PMCPMC7560947
OpenAlexW2076809631

What OpenQuestion holds

Textmetadata
LicenceTDM
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.