Cited by 209Cannabis and Cannabinoid ResearchIon Channels and ReceptorsNeurotransmitter Receptor Influence on Behavior

Anxiolytic Effects in Mice of a Dual Blocker of Fatty Acid Amide Hydrolase and Transient Receptor Potential Vanilloid Type-1 Channels

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Micale, Vincenzo, Cristino, Luigia, Tamburella, Alessandra, Petrosino, Stefania, Leggio, Gian Marco, Drago, Filippo, Di Marzo, Vincenzo·2009·Neuropsychopharmacology

Abstract

The endocannabinoid-inactivating enzyme, fatty acid amide hydrolase (FAAH), and the transient receptor potential vanilloid type-1 (TRPV1) channel are new targets for the development of anxiolytic drugs. We studied the effect on anxiety-like behavior in the elevated plus maze of a dual FAAH/TRPV1 blocker, N-arachidonoyl-serotonin (AA-5-HT). In male C57BL/6J mice, acute intraperitoneal administration of AA-5-HT (0.1-2.5 mg/kg) increased both the time spent and the number of entries in the open arm, while being inactive at the highest dose tested (5 mg/kg). AA-5-HT was more potent than selective blockers of FAAH or TRPV1 (URB597 and SB366791, respectively). In male Swiss mice, AA-5-HT had to be administered chronically to observe an anxiolytic effect at an intermediate dose (2.5 mg/kg), the highest dose (5 mg/kg) being anxiogenic, and 1 mg/kg being ineffective. In both strains, the anxiolytic effects of AA-5-HT were paralleled by elevation of brain endocannabinoid levels and were reversed by per se inactive doses of the cannabinoid receptors of type-1 (CB(1)) receptor antagonist AM251, or the TRPV1 agonist, olvanil. Immunohistochemical localization of CB(1) and TRPV1 receptors was observed in mouse prefrontal cortex, nucleus accumbens, amygdala, and hippocampus. Simultaneous 'indirect' activation of CB(1) receptors following FAAH inhibition, and antagonism at TRPV1 receptors might represent a new therapeutic strategy against anxiety.

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Crossref · 10.1038/npp.2008.98

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Authors
Micale, V., Cristino, L., Tamburella, A., Petrosino, S., Leggio, G. M., Drago, F., & Di Marzo, V.
Affiliations
  • University of Catania (IT)
  • Institute of Applied Science and Intelligent Systems (IT)
  • Istituto di Chimica Biomolecolare (IT)
Venue
Neuropsychopharmacology
Published
2008-06-25
Volume
34
Issue
3
Pages
593-606
ISSN
  • 0893-133X (ISSN-L)
  • 1740-634X
OpenAlex
W2024922848
Cited by
207
References
60
Citations by year
2026: 3 · 2025: 7 · 2024: 5 · 2023: 3 · 2022: 10 · 2021: 4 · 2020: 12 · 2019: 11 · 2018: 10 · 2017: 12 · 2016: 19 · 2015: 14 · 2014: 23 · 2013: 15 · 2012: 18
FWCI
9.61
Type
journal article
Language
en
Locations
  • Neuropsychopharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • INFM-OAR (INFN Catania) (submittedVersion, other-oa)
Funders
Università di Catania
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
anxiolytic effects, fatty acid amide hydrolase, TRPV1, endocannabinoids, CB1 receptor, anxiety-like behavior, elevated plus maze, olvanil, URB597, SB366791, prefrontal cortex, amygdala, nucleus accumbens, hippocampus, cannabinoid receptor antagonism
MeSH terms
Fatty Acid Amide Hydrolases, Amidohydrolases, Anilides, Animals, Anxiety, Arachidonic Acids, Benzamides, Brain, Capsaicin, Carbamates, Cinnamates, Diazepam, Exploratory Behavior, Male, Mice, Inbred C57BL, Piperidines, Pyrazoles, Serotonin, Anti-Anxiety Agents, Receptor, Cannabinoid, CB1, TRPV Cation Channels, Mice, Cannabinoid Receptor Modulators

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