Evidence map›Paper›PMID 24847890›Full record

ArticleBreast cancer research and treatment2014

Hypomethylation of the MMP7 promoter and increased expression of MMP7 distinguishes the basal-like breast cancer subtype from other triple-negative tumors.

Steven T Sizemore, Gina M Sizemore, Christine N Booth, Cheryl L Thompson, Paula Silverman, Gurkan Bebek, Fadi W Abdul-Karim, Stefanie Avril, Ruth A Keri

Open access · greenAbstract read
In one paragraph

Article in Breast cancer research and treatment, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

26 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
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  5. Omics-based molecular classifications empowering in precision oncology.Cellular oncology (Dordrecht, Netherlands) · 2024
    Review
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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

9 authors at 4 institutions in 2 countries.

Steven T SizemoreDepartment of Pharmacology, Case Western Reserve University School of Medicine, 10900 Euclid Ave., Cleveland, OH, 44106-4965, USA.
Gina M Sizemore
Christine N Booth
Cheryl L Thompson
Paula Silverman
Gurkan Bebek
Fadi W Abdul-Karim
Stefanie Avril
Ruth A Keri
Cleveland Clinic · USUniversity School · USCase Western Reserve University · USTechnical University of Munich · DE

Funding

TUMOR METABOLISM PROGRAMP30CA043703 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI MARK R CHANCE · 1987 to 2026
$142.3M
Clinical and Translational Science Collaborative of ClevelandUL1TR000439 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$50.0M
Clinical and Translational Science Collaborative of ClevelandKL2TR000440 · NCATS · CASE WESTERN RESERVE UNIVERSITY · PI KONSTAN, MICHAEL W. · 2012 to 2016
$11.1M
Regulation of erbB2/Neu-induced mammary gland cancerR01CA090398 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI KERI, RUTH A. · 2001 to 2011
$2.7M
KLF4 regulation of epithelial/mesenchymal transition in breast cancerR01CA154384 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI KERI, RUTH A. · 2011 to 2015
$1.6M
NCATS NIH HHS KL2 TR000440NCATS NIH HHS UL1 TR000439NCI NIH HHS P30 CA043703NCI NIH HHS R01 CA090398NCI NIH HHS R01 CA154384
6 · The paper itself

Abstract

Identification of novel targets for the treatment of basal-like breast cancer is essential for improved outcomes in patients with this disease. This study investigates the association of MMP7 expression and MMP7 promoter methylation with subtype and outcome in breast cancer patient cohorts. Immunohistochemical analysis was performed on a breast cancer tissue microarray and validated in independent histological samples. MMP7 expression significantly correlated with patient age, tumor size, triple-negative (TN) status, and recurrence. Analysis of publically available datasets confirmed MMP7 gene expression as a prognostic marker of breast cancer metastasis, particularly metastasis to the brain and lungs. Methylation of the MMP7 promoter was assessed by methylation-specific PCR in a panel of breast cancer cell lines and patient tumor samples. Hypomethylation of the MMP7 promoter significantly correlated with TN status in DNA from patient tumor samples, and this association was confirmed using The Cancer Genome Atlas (TCGA) dataset. Evaluation of a panel of breast cancer cell lines and data from the Curtis and TCGA breast carcinoma datasets revealed that elevated MMP7 expression and MMP7 promoter hypomethylation are specific biomarkers of the basal-like molecular subtype which shares considerable, but not complete, overlap with the clinical TN subtype. Importantly, MMP7 expression was identified as an independent predictor of pathological complete response in a large breast cancer patient cohort. Combined, these data suggest that MMP7 expression and MMP7 promoter methylation may be useful as prognostic biomarkers. Furthermore, MMP7 expression and promoter methylation analysis may be effective mechanisms to distinguish basal-like breast cancers from other triple-negative subtypes. Finally, these data implicate MMP7 as a potential therapeutic target for the treatment of basal-like breast cancers.

Indexed as

DNA MethylationPromoter Regions, GeneticAdultAgedBreast NeoplasmsCell Line, TumorCpG IslandsDatasets as TopicFemaleFollow-Up StudiesGene ExpressionHumansMatrix Metalloproteinase 7Middle AgedNeoplasm GradingNeoplasms, Basal CellMatrix Metalloproteinase 7

Identifiers

PMID24847890
PMCPMC4716673
OpenAlexW2081815127

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.