Evidence map›Paper›PMID 30458882›Full record

ArticleBreast cancer research : BCR2018

HER4 expression in estrogen receptor-positive breast cancer is associated with decreased sensitivity to tamoxifen treatment and reduced overall survival of postmenopausal women.

Anja Kathrin Wege, Dominik Chittka, Stefan Buchholz, Monika Klinkhammer-Schalke, Simone Diermeier-Daucher, Florian Zeman, Olaf Ortmann, Gero Brockhoff

Open access · goldAbstract read
In one paragraph

Article in Breast cancer research : BCR, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
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  4. Article
  5. Review
  6. Article
  7. Article
  8. PET and SPECT Imaging of the EGFR Family (RTK Class I) in Oncology.International journal of molecular sciences · 2021
    Review
  9. Targeting HER2 in breast cancer: new drugs and paradigms on the horizon.Exploration of targeted anti-tumor therapy · 2021
    Review
  10. Review
  11. The role of ErbB4 in cancer.Cellular oncology (Dordrecht, Netherlands) · 2020
    Review
  12. 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 at 2 institutions in 1 country.

Anja Kathrin WegeClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
Dominik ChittkaClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
Stefan BuchholzClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
Monika Klinkhammer-SchalkeTumor Center Regensburg, University of Regensburg, Regensburg, Germany.
Simone Diermeier-DaucherClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
Florian ZemanCenter for Clinical Studies, University Hospital Regensburg, Regensburg, Germany.
Olaf OrtmannClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany.
Gero BrockhoffClinic of Gynecology and Obstetrics, University Medical Center Regensburg, Regensburg, Germany. gero.brockhoff@ukr.de.ORCID 0000-0001-8398-8349
University Hospital Regensburg · DEUniversity of Regensburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe sensitivity of estrogen receptor-positive breast cancers to tamoxifen treatment varies considerably, and the molecular mechanisms affecting the response rates are manifold. The human epidermal growth factor receptor-related receptor HER2 is known to trigger intracellular signaling cascades that modulate the activity of coregulators of the estrogen receptor which, in turn, reduces the cell sensitivity to tamoxifen treatment. However, the impact of HER2-related receptor tyrosine kinases HER1, HER3, and, in particular, HER4 on endocrine treatment is largely unknown.

methodsHere, we retrospectively evaluated the importance of HER4 expression on the outcome of tamoxifen- and aromatase inhibitor-treated estrogen receptor-positive breast cancer patients (n = 258). In addition, we experimentally analyzed the efficiency of tamoxifen treatment as a function of HER4 co-expression in vitro.

resultsWe found a significantly improved survival in tamoxifen-treated postmenopausal breast cancer patients in the absence of HER4 compared with those with pronounced HER4 expression. In accordance with this finding, the sensitivity to tamoxifen treatment of estrogen and HER4 receptor-positive ZR-75-1 breast cancer cells can be significantly enhanced by HER4 knockdown.

conclusionWe suggest an HER4/estrogen receptor interaction that impedes tamoxifen binding to the estrogen receptor and reduces treatment efficiency. Whether the sensitivity to tamoxifen treatment can be enhanced by anti-HER4 targeting needs to be prospectively evaluated.

Indexed as

Drug Resistance, NeoplasmAntineoplastic Agents, HormonalAromatase InhibitorsBreast NeoplasmsCell Line, TumorDisease-Free SurvivalFemaleFollow-Up StudiesGene Knockdown TechniquesHumansKaplan-Meier EstimateMiddle AgedPostmenopauseReceptor, ErbB-4Receptors, EstrogenRetrospective StudiesAntineoplastic Agents, HormonalAromatase InhibitorsERBB4 protein, humanReceptor, ErbB-4Receptors, EstrogenRNA, Small InterferingTamoxifenEstrogen receptor positive breast cancerHER4 receptorTamoxifen treatment

Identifiers

PMID30458882
PMCPMC6247692
OpenAlexW2901027329

What OpenQuestion holds

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LicenceCC BY
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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.