Evidence map›Paper›PMID 23939832›Full record

ArticleThe Journal of pathology2013

MiR-26b is down-regulated in carcinoma-associated fibroblasts from ER-positive breast cancers leading to enhanced cell migration and invasion.

Eldo T Verghese, Ruth Drury, Caroline A Green, Deborah L Holliday, Xiaomei Lu, Claire Nash, Valerie Speirs, James L Thorne, Helene H Thygesen, Alexandre Zougman and 3 more

Open access · hybridAbstract read
In one paragraph

Article in The Journal of pathology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed, 1 pooled it
4.5field-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

72 citing papers in PubMed, 1 synthesis or guideline pooled it, 121 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. The Duality of Collagens in Metastases of Solid Tumors.International journal of molecular sciences · 2025
    Review
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  6. Article
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  10. Article
  11. Article
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  13. Breast Cancer CAFs: Spectrum of Phenotypes and Promising Targeting Avenues.International journal of molecular sciences · 2021
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article

12 more citing papers are in PubMed but not listed here.

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

13 authors at 2 institutions in 1 country.

Eldo T VergheseLeeds Institute of Molecular Medicine, University of Leeds, Leeds, UK; Department of Histopathology, St James's University Hospital, Leeds, UK.
Ruth Drury
Caroline A Green
Deborah L Holliday
Xiaomei Lu
Claire Nash
Valerie Speirs
James L Thorne
Helene H Thygesen
Alexandre Zougman
Mark A Hull
Andrew M Hanby
Thomas A Hughes
University of Leeds · GBCancer Research UK · GB

Funding

Cancer Research UK C37059/A11941Medical Research Council G0902032
6 · The paper itself

Abstract

Carcinoma-associated fibroblasts (CAFs) influence the behaviour of cancer cells but the roles of microRNAs in this interaction are unknown. We report microRNAs that are differentially expressed between breast normal fibroblasts and CAFs of oestrogen receptor-positive cancers, and explore the influences of one of these, miR-26b, on breast cancer biology. We identified differentially expressed microRNAs by expression profiling of clinical samples and a tissue culture model: miR-26b was the most highly deregulated microRNA. Using qPCR, miR-26b was confirmed as down-regulated in fibroblasts from 15 of 18 further breast cancers. Next, we examined whether manipulation of miR-26b expression changed breast fibroblast behaviour. Reduced miR-26b expression caused fibroblast migration and invasion to increase by up to three-fold in scratch-closure and trans-well assays. Furthermore, in co-culture with MCF7 breast cancer epithelial cells, fibroblasts with reduced miR-26b expression enhanced both MCF7 migration in trans-well assays and MCF7 invasion from three-dimensional spheroids by up to five-fold. Mass spectrometry was used to identify expression changes associated with the reduction of miR-26b expression in fibroblasts. Pathway analyses of differentially expressed proteins revealed that glycolysis/TCA cycle and cytoskeletal regulation by Rho GTPases are downstream of miR-26b. In addition, three novel miR-26b targets were identified (TNKS1BP1, CPSF7, COL12A1) and the expression of each in cancer stroma was shown to be significantly associated with breast cancer recurrence. MiR-26b in breast CAFs is a potent regulator of cancer behaviour in oestrogen receptor-positive cancers, and we have identified key genes and molecular pathways that act downstream of miR-26b in CAFs.

Indexed as

Cell MovementBreast NeoplasmsCoculture TechniquesDown-RegulationFemaleFibroblastsGene Expression ProfilingGene Expression Regulation, NeoplasticHumansMCF-7 CellsMicroRNAsNeoplasm InvasivenessOligonucleotide Array Sequence AnalysisParacrine CommunicationPolymerase Chain ReactionReceptors, EstrogenMicroRNAsMIRN26 microRNA, humanReceptors, EstrogenfibroblastmicroRNAmicroRNA-26bstromatumour microenvironment

Identifiers

PMID23939832
PMCPMC4030585
OpenAlexW1599958157

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.