Evidence map›Paper›PMID 19569235›Full record

ArticleInternational journal of cancer2009

Methylation-associated silencing of SFRP1 with an 8p11-12 amplification inhibits canonical and non-canonical WNT pathways in breast cancers.

Zeng-Quan Yang, Gang Liu, Aliccia Bollig-Fischer, Ramsi Haddad, Adi L Tarca, Stephen P Ethier

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In one paragraph

Article in International journal of cancer, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

20 citing papers in PubMed, 37 citations in OpenAlex.

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  6. A MicroRNA Derived FromFrontiers in cellular and infection microbiology · 2020
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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 1 country.

Zeng-Quan YangDepartment of Pathology, Breast Cancer Program, Karmanos Cancer Institute, Detroit, MI 48201, USA. yangz@karmanos.org
Gang Liu
Aliccia Bollig-Fischer
Ramsi Haddad
Adi L Tarca
Stephen P Ethier
The Barbara Ann Karmanos Cancer Institute · USWayne State University · US

Funding

Breast cancer oncogenes on the 8p11 amplicon.R01CA100724 · NCI · WAYNE STATE UNIVERSITY · PI ETHIER, STEPHEN P. · 2003 to 2014
$3.5M
NCI NIH HHS R01 CA100724
6 · The paper itself

Abstract

Recently, we analysed the 8p11-12 genomic region for copy number and gene expression changes in a panel of human breast cancer cell lines and primary specimens. We found that SFRP1 (Secreted frizzled related protein 1) is frequently under expressed even in breast tumours with copy number increases in this genomic region. SFRP1 encodes a WNT signalling antagonist, and plays a role in the development of multiple solid tumour types. In this study, we analysed methylation-associated silencing of the SFRP1 gene in breast cancer cells with the 8p11-12 amplicon, and investigated the tumour suppressor properties of SFRP1 in breast cancer cells. SFRP1 expression was markedly reduced in both the breast cancer cell lines and primary tumour specimens relative to normal primary human mammary epithelial cells even when SFRP1 is amplified. Suppression of SFRP1 expression in breast cancer cells with an SFRP1 gene amplification is associated with SFRP1 promoter methylation. Furthermore, restoration of SFRP1 expression suppressed the growth of breast cancer cells in monolayer, and inhibited anchorage independent growth. We also examined the relationship between the silencing of SFRP1 gene and WNT signalling in breast cancer. Ectopic SFRP1 expression in breast cancer cells suppressed both canonical and non-canonical WNT signalling pathways, and SFRP1 expression was negatively associated with the expression of a subset of WNT responsive genes including RET and MSX2. Thus, down-regulation of SFRP1 can be triggered by epigenetic and/or genetic events and may contribute to the tumourigenesis of human breast cancer through both canonical and non-canonical WNT signalling pathways.

Indexed as

DNA MethylationGene SilencingBreast NeoplasmsCell Line, TumorDown-RegulationEpigenesis, GeneticFemaleGene Expression Regulation, NeoplasticHomeodomain ProteinsHumansIntercellular Signaling Peptides and ProteinsMembrane ProteinsProto-Oncogene Proteins c-retReverse Transcriptase Polymerase Chain ReactionSecreted Frizzled-Related ProteinsSignal TransductionHomeodomain ProteinsIntercellular Signaling Peptides and ProteinsMembrane ProteinsMSX2 proteinProto-Oncogene Proteins c-retRET protein, humanSecreted Frizzled-Related ProteinsSFRP1 protein, humanWnt Proteins

Identifiers

PMID19569235
PMCPMC2735097
OpenAlexW1993789093

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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.