Evidence map›Paper›PMID 21610490›Full record

ArticleBehavioural pharmacology2011

CB1 and CB2 receptor agonists promote analgesia through synergy in a murine model of tumor pain.

Iryna A Khasabova, James Gielissen, Anisha Chandiramani, Catherine Harding-Rose, Desiree Abu Odeh, Donald A Simone, Virginia S Seybold

Abstract readComparative Study
In one paragraph

Article in Behavioural pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 52 citations in OpenAlex.

  1. Cannabinoid CBBritish journal of pharmacology · 2025
    Review
  2. Unveiling the link between chronic pain and misuse of opioids and cannabis.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  3. Article
  4. Article
  5. Should oncologists trust cannabinoids?Frontiers in pharmacology · 2023
    Review
  6. Article
  7. Review
  8. Article
  9. Why wild giant pandas frequently roll in horse manure.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. The neurobiology of cancer pain.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2014
    Review
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.

Iryna A KhasabovaDepartment of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA.
James Gielissen
Anisha Chandiramani
Catherine Harding-Rose
Desiree Abu Odeh
Donald A Simone
Virginia S Seybold
University of Minnesota · USOffice of Basic Energy Sciences · US

Funding

CANNABINOID MODULATION OF HYPERALGESIAR01DA011471 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SIMONE, DONALD · 2000 to 2014
$4.2M
Neural Mechanisms of Cancer PainR01CA091007 · NCI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI SIMONE, DONALD · 2001 to 2011
$2.3M
Endocannabinoid signaling in a model of cancer painR01CA138684 · NCI · UNIVERSITY OF MINNESOTA · PI SEYBOLD, VIRGINIA S · 2010 to 2014
$1.6M
NCI NIH HHS CA091007NCI NIH HHS CA138684NCI NIH HHS R01 CA091007NCI NIH HHS R01 CA138684NIDA NIH HHS DA011471NIDA NIH HHS R01 DA011471
6 · The paper itself

Abstract

In light of the adverse side-effects of opioids, cannabinoid receptor agonists may provide an effective alternative for the treatment of cancer pain. This study examined the potency and efficacy of synthetic CB1 and CB2 receptor agonists in a murine model of tumor pain. Intraplantar injection of the CB1 receptor agonist arachidonylcyclopropylamide (ED(50) of 18.4 μg) reduced tumor-related mechanical hyperalgesia by activation of peripheral CB1 but not CB2 receptors. Similar injection of the CB2 receptor agonist AM1241 (ED50 of 19.5 μg) reduced mechanical hyperalgesia by activation of peripheral CB2 but not CB1 receptors. Both agonists had an efficacy comparable with that of morphine (intraplantar), but their analgesic effects were independent of opioid receptors. Isobolographic analysis of the coinjection of arachidonylcyclopropylamide and AM1241 determined that the CB1 and CB2 receptor agonists interacted synergistically to reduce mechanical hyperalgesia in the tumor-bearing paw. These data extend our previous findings that the peripheral cannabinoid receptors are a promising target for the management of cancer pain and mixed cannabinoid receptor agonists may have a therapeutic advantage over selective agonists.

Indexed as

AnalgesicsAnimalsArachidonic AcidsCannabinoidsDisease Models, AnimalDrug SynergismHyperalgesiaMaleMiceMice, Inbred C3HMorphineNeoplasms, ExperimentalPainReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2AM 1241AnalgesicsArachidonic AcidsarachidonylcyclopropylamideCannabinoidsMorphineReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2

Identifiers

PMID21610490
PMCPMC3155626
OpenAlexW1980972832

What OpenQuestion holds

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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.