Evidence map›Paper›PMID 25417703›Full record

ArticleOncogene2015

BRCA1 regulation of epidermal growth factor receptor (EGFR) expression in human breast cancer cells involves microRNA-146a and is critical for its tumor suppressor function.

E Kumaraswamy, K L Wendt, L A Augustine, S R Stecklein, E C Sibala, D Li, S Gunewardena, R A Jensen

Abstract read
In one paragraph

Article in Oncogene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Involvement of FAM170B-AS1, hsa-miR-1202, and hsa-miR-146a-5p in breast cancer.Cancer biomarkers : section A of Disease markers · 2024
    Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. RETRACTED: Orientin, a Bio-Flavonoid fromPharmaceuticals (Basel, Switzerland) · 2022
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Clinico-Pathological Importance of miR-146a in Lung Cancer.Diagnostics (Basel, Switzerland) · 2021
    Review
  17. Review
  18. Article
  19. Article
  20. Article
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.

E Kumaraswamy1] Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA [2] The University of Kansas Cancer Center, Kansas City, KS, USA.
K L WendtThe University of Kansas Cancer Center, Kansas City, KS, USA.
L A AugustineThe University of Kansas Cancer Center, Kansas City, KS, USA.
S R SteckleinDepartment of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA.
E C SibalaThe University of Kansas Cancer Center, Kansas City, KS, USA.
D LiThe University of Kansas Cancer Center, Kansas City, KS, USA.
S Gunewardena1] Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA [2] Department of Biostatistics, University of Kansas Medical Center, Kansas City, KS, USA.
R A Jensen1] Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA [2] The University of Kansas Cancer Center, Kansas City, KS, USA [3] Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS, USA [4] Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA [5] Department of Molecular Biosciences, University of Kansas, Lawrence, KS, USA.

Funding

Transgenic & Gene-Targeting Shared ResourceP30CA168524 · NCI · UNIVERSITY OF KANSAS MEDICAL CENTER · PI NICOLE L NOLLEN · 2012 to 2026
$40.1M
XRAY CRYSTALLOGRAPHY CORE (JANUARY 1 - JUNE 30, 2005)P20RR016443 · NCRR · UNIVERSITY OF KANSAS MEDICAL CENTER · PI VINES, CHARLOTTE M · 2001 to 2010
$21.3M
NCI NIH HHS P30 CA168524NCRR NIH HHS P20 RR016443
6 · The paper itself

Abstract

Breast cancer 1 (BRCA1)-associated breast cancers are mostly basal-like high-grade ductal carcinomas that frequently overexpress epidermal growth factor receptor (EGFR). Aberrant EGFR expression is correlated with disease progression, resistance to radiation and chemotherapy, and poor clinical prognosis. Although BRCA1 is involved in multiple cellular processes, its functional role in EGFR regulation remains enigmatic. Here, we report a previously unrecognized posttranscriptional mechanism by which BRCA1 regulates EGFR expression through the induction of miR-146a. We demonstrate that EGFR expression correlates negatively with BRCA1, whereas miR-146a levels increase with BRCA1. We show that BRCA1 binds to MIR146A promoter and activates transcription, which in turn attenuates EGFR expression. Knockdown of miR-146a in BRCA1-overexpressing cells negated this effect and suppressed its ability to inhibit proliferation and transformation. In archived triple-negative breast cancer samples, we show a strong positive correlation between BRCA1 and miR-146a expression. We also show that low expression of miR-146a strongly predicts positive lymph node status and is associated with distinctively poor overall survival of patients. Together, these observations provide an insight into a novel BRCA1miR-146aEGFR paradigm by which BRCA1 carries out an aspect of tumor suppressor function that is potentially amenable to therapeutic intervention.

Indexed as

BRCA1 ProteinCell Line, TumorCell ProliferationCell Transformation, NeoplasticErbB ReceptorsFemaleHumansLymph NodesMicroRNAsPromoter Regions, GeneticRNA Processing, Post-TranscriptionalTranscriptional ActivationTriple Negative Breast NeoplasmsTumor Suppressor ProteinsBRCA1 ProteinEGFR protein, humanErbB ReceptorsMicroRNAsMIRN146 microRNA, humanTumor Suppressor Proteins

Identifiers

PMID25417703
PMCPMC4739738

What OpenQuestion holds

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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.