Evidence map›Paper›PMID 23633472›Full record

ArticleOncotarget2013

Cell death sensitization of leukemia cells by opioid receptor activation.

Claudia Friesen, Mareike Roscher, Inis Hormann, Iduna Fichtner, Andreas Alt, Ralf A Hilger, Klaus-Michael Debatin, Erich Miltner

Open access · hybridAbstract read
In one paragraph

Article in Oncotarget, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

31 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. L-asparaginase induces IP3R-mediated ER CaCell death discovery · 2024
    Article
  3. Article
  4. Anesthesia and cancer recurrence: a narrative review.Anesthesia and pain medicine · 2024
    Review
  5. Article
  6. Article
  7. PKA inhibition is a central step in D,L-methadone-induced ER CaFrontiers in cell and developmental biology · 2024
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Anaesthesia as an influence in tumour progression.Langenbeck's archives of surgery · 2021
    Review
  13. The role of methadone in cancer-induced bone pain: a retrospective cohort study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  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

8 authors at 4 institutions in 1 country.

Claudia FriesenCenter for Biomedical Research, University of Ulm, Ulm, Germany. claudia.friesen@uni-ulm.de
Mareike Roscher
Inis Hormann
Iduna Fichtner
Andreas Alt
Ralf A Hilger
Klaus-Michael Debatin
Erich Miltner
Universität Ulm · DEMax Delbrück Center · DEUniversity Hospital Ulm · DEWest German Heart and Vascular Center Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclic AMP (cAMP) regulates a number of cellular processes and modulates cell death induction. cAMP levels are altered upon stimulation of specific G-protein-coupled receptors inhibiting or activating adenylyl cyclases. Opioid receptor stimulation can activate inhibitory Gi-proteins which in turn block adenylyl cyclase activity reducing cAMP. Opioids such as D,L-methadone induce cell death in leukemia cells. However, the mechanism how opioids trigger apoptosis and activate caspases in leukemia cells is not understood. In this study, we demonstrate that downregulation of cAMP induced by opioid receptor activation using the opioid D,L-methadone kills and sensitizes leukemia cells for doxorubicin treatment. Enhancing cAMP levels by blocking opioid-receptor signaling strongly reduced D,L-methadone-induced apoptosis, caspase activation and doxorubicin-sensitivity. Induction of cell death in leukemia cells by activation of opioid receptors using the opioid D,L-methadone depends on critical levels of opioid receptor expression on the cell surface. Doxorubicin increased opioid receptor expression in leukemia cells. In addition, the opioid D,L-methadone increased doxorubicin uptake and decreased doxorubicin efflux in leukemia cells, suggesting that the opioid D,L-methadone as well as doxorubicin mutually increase their cytotoxic potential. Furthermore, we found that opioid receptor activation using D,L-methadone alone or in addition to doxorubicin inhibits tumor growth significantly in vivo. These results demonstrate that opioid receptor activation via triggering the downregulation of cAMP induces apoptosis, activates caspases and sensitizes leukemia cells for doxorubicin treatment. Hence, opioid receptor activation seems to be a promising strategy to improve anticancer therapies.

Indexed as

ApoptosisAdenylyl Cyclase InhibitorsAdenylyl CyclasesAnalgesics, OpioidAnimalsAntibiotics, AntineoplasticCaspasesCell Line, TumorCyclic AMPDown-RegulationDoxorubicinDrug Resistance, NeoplasmEnzyme ActivationHumansLeukemia, B-CellMaleAdenylyl Cyclase InhibitorsAdenylyl CyclasesAnalgesics, OpioidAntibiotics, AntineoplasticCaspasesCyclic AMPDoxorubicinMethadoneReceptors, Opioid

Identifiers

PMID23633472
PMCPMC3742829
OpenAlexW1778421948

What OpenQuestion holds

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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.