Evidence map›Paper›PMID 33465556›Full record

ArticleNeoplasia (New York, N.Y.)2021

Opioids drive breast cancer metastasis through the δ-opioid receptor and oncogenic STAT3.

Sabrina Tripolt, Heidi A Neubauer, Vanessa M Knab, Dominik P Elmer, Fritz Aberger, Richard Moriggl, Daniela A Fux

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Opioid System and Epithelial-Mesenchymal Transition.Pharmaceuticals (Basel, Switzerland) · 2025
    Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

7 authors at 2 institutions in 1 country.

Sabrina TripoltInstitute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria.
Heidi A NeubauerInstitute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria.
Vanessa M KnabInstitute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria.
Dominik P ElmerDepartment of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Salzburg, Austria.
Fritz AbergerDepartment of Biosciences, Cancer Cluster Salzburg, Paris-Lodron University of Salzburg, Salzburg, Austria.
Richard MorigglInstitute of Animal Breeding and Genetics, University of Veterinary Medicine Vienna, Vienna, Austria.
Daniela A FuxInstitute of Pharmacology and Toxicology, University of Veterinary Medicine Vienna, Vienna, Austria. Electronic address: sabrina_tripolt@gmx.net.
University of Veterinary Medicine Vienna · ATUniversity of Salzburg · AT

Funding

Austrian Science Fund FWF I 4157Austrian Science Fund FWF I 4218Austrian Science Fund FWF P 27248
6 · The paper itself

Abstract

The opioid crisis of pain medication bears risks from addiction to cancer progression, but little experimental evidence exists. Expression of δ-opioid receptors (DORs) correlates with poor prognosis for breast cancer patients, but mechanistic insights into oncogenic signaling mechanisms of opioid-triggered cancer progression are lacking. We show that orthotopic transplant models using human or murine breast cancer cells displayed enhanced metastasis upon opioid-induced DOR stimulation. Interestingly, opioid-exposed breast cancer cells showed enhanced migration and strong STAT3 activation, which was efficiently blocked by a DOR-antagonist. Furthermore, opioid treatment resulted in down-regulation of E-Cadherin and increased expression of epithelial-mesenchymal transition markers. Notably, STAT3 knockdown or upstream inhibition through the JAK1/2 kinase inhibitor ruxolitinib prevented opioid-induced breast cancer cell metastasis and migration in vitro and in vivo. We conclude on a novel mechanism whereby opioid-triggered breast cancer metastasis occurs via oncogenic JAK1/2-STAT3 signaling to promote epithelial-mesenchymal transition. These findings emphasize the importance of selective and restricted opioid use, as well as the need for safer pain medication that does not activate these oncogenic pathways.

Indexed as

Analgesics, OpioidAnimalsBiomarkersBreast NeoplasmsCell Line, TumorDisease Models, AnimalDisease SusceptibilityFemaleGene ExpressionHumansImmunohistochemistryMiceMice, TransgenicNeoplasm MetastasisOncogene ProteinsReceptors, Opioid, deltaAnalgesics, OpioidBiomarkersOncogene ProteinsReceptors, Opioid, deltaSTAT3 Transcription FactorBreast cancerEMTMetastasisOpioidSTAT3

Identifiers

PMID33465556
PMCPMC7815495
OpenAlexW3123100493

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.