Cited by 43Cannabis and Cannabinoid ResearchPain Mechanisms and TreatmentsIon Channels and Receptors

Actions of the endocannabinoid transport inhibitor AM404 in neuropathic and inflammatory pain models

Mitchell, Vanessa A, Greenwood, Ruth, Jayamanne, Angelo, Vaughan, Christopher W·2007·Clinical and Experimental Pharmacology and Physiology

Abstract

1. Although cannabinoid receptor agonists have analgesic activity in chronic pain states, they produce a spectrum of central cannabinoid CB(1) receptor-mediated motor and psychotropic side-effects. The actions of endocannabinoids, such as anandamide, are terminated by uptake and subsequent intracellular enzymatic degradation. In the present study, we examined the effect of acute administration of the anandamide transport inhibitor AM404 in rat models of chronic neuropathic and inflammatory pain. 2. Systemic administration of AM404 (10 mg/kg) reduced mechanical allodynia in the partial sciatic nerve ligation (PNL) model of neuropathic pain, but not in the complete Freund's adjuvant (CFA) model of inflammatory pain. 3. The effect of AM404 in the PNL model was abolished by coapplication with the selective cannabinoid CB(1) receptor antagonist AM251 (1 mg/kg). AM404 did not produce a reduction in motor performance in either the PNL or CFA models. 4. These findings suggest that acute administration of AM404 reduces allodynia in a neuropathic pain model via cannabinoid CB(1) receptor activation, without causing the undesirable motor disruption associated with cannabinoid receptor agonists.

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Crossref · 10.1111/j.1440-1681.2007.04692.x

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Authors
Mitchell, V. A., Greenwood, R., Jayamanne, A., & Vaughan, C. W.
Affiliations
The University of Sydney (AU)
Corresponding author
Vaughan, Christopher W
Venue
Clinical and Experimental Pharmacology and Physiology
Publisher
Wiley
Published
2007-07-17
Volume
34
Issue
11
Pages
1186-1190
ISSN
  • 0305-1870 (ISSN-L)
  • 1440-1681
OpenAlex
W2112714065
Cited by
43
References
41
Citations by year
2026: 1 · 2022: 1 · 2021: 2 · 2020: 3 · 2019: 3 · 2018: 3 · 2017: 3 · 2016: 1 · 2014: 1 · 2013: 4 · 2012: 3
FWCI
3.10
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical and Experimental Pharmacology and Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
Keywords
AM404, endocannabinoids, CB1 receptor, neuropathic pain, inflammatory pain, allodynia, partial sciatic nerve ligation, complete Freund's adjuvant, AM251, motor side effects, analgesia
MeSH terms
Analgesics, Animals, Arachidonic Acids, Carrier Proteins, Disease Models, Animal, Freund's Adjuvant, Inflammation, Ligation, Male, Motor Activity, Pain, Pain Measurement, Piperidines, Pyrazoles, Sciatic Nerve, Time Factors, Rats, Sprague-Dawley, Sciatic Neuropathy, Receptor, Cannabinoid, CB1, Rats, Polyunsaturated Alkamides, Cannabinoid Receptor Modulators, Endocannabinoids

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