Study of the regulation of the endocannabinoid system in a virus model of multiple sclerosis reveals a therapeutic effect of palmitoylethanolamide
Open accessAbstract
Cannabinoids have recently been approved as a treatment for pain in multiple sclerosis (MS). Increasing evidence from animal studies suggests that this class of compounds could also prove efficient to fight neurodegeneration, demyelination, inflammation and autoimmune processes occurring in this pathology. However, the use of cannabinoids is limited by their psychoactive effects. In this context, potentiation of the endogenous cannabinoid signalling could represent a substitute to the use of exogenously administrated cannabinoid ligands. Here, we studied the expression of different elements of the endocannabinoid system in a chronic model of MS in mice. We first studied the expression of the two cannabinoid receptors, CB(1) and CB(2), as well as the putative intracellular cannabinoid receptor peroxisome proliferator-activated receptor-alpha. We observed an upregulation of CB(2), correlated to the production of proinflammatory cytokines, at 60 days after the onset of the MS model. At this time, the levels of the endocannabinoid, 2-arachidonoylglycerol, and of the anti-inflammatory anandamide congener, palmithoylethanolamide, were enhanced, without changes in the levels of anandamide. These changes were not due to differences in the expression of the degradation enzymes, fatty acid amide hydrolase and monoacylglycerol lipase, or of biosynthetic enzymes, diacylglycerol lipase-alpha and N-acylphosphatidylethanolamine phospholipase-D at this time (60 days). Finally, the exogenous administration of palmitoylethanolamide resulted in a reduction of motor disability in the animals subjected to this model of MS, accompanied by an anti-inflammatory effect. This study overall highlights the potential therapeutic effects of endocannabinoids in MS.
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A mouse model of multiple sclerosis (TMEV infection) is characterized by upregulation of CB2 receptor mRNA and increases in levels of 2-AG and PEA.
“Interestingly, a mouse model of MS (TMEV infection) is also characterized by an upregulation of CB2 receptor mRNA and increases in levels of 2-AG and PEA.129”
From Cannabinoids as Pharmacotherapies for Neuropathic Pain: From the Bench to the Bedside (2009) · cites this paper as [129]
Animals treated subchronically with PEA showed improvements in tests of motor performance that were impaired following TMEV infection.
“Animals treated subchronically with PEA showed improvements in tests of motor performance, measures that were impaired following TMEV infection.129”
From Cannabinoids as Pharmacotherapies for Neuropathic Pain: From the Bench to the Bedside (2009) · cites this paper as [129]
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- Authors
- Loría, F., Petrosino, S., Mestre, L., Spagnolo, A., Correa, F., Hernangómez, M., Guaza, C., Di Marzo, V., & Docagne, F.
- Affiliations
- Consejo Superior de Investigaciones Científicas (ES)
- Istituto di Chimica Biomolecolare (IT)
- Venue
- European Journal of Neuroscience
- Publisher
- Wiley
- Published
- 2008-08
- Volume
- 28
- Issue
- 4
- Pages
- 633-641
- ISSN
- 0953-816X (ISSN-L)
- 1460-9568
- OpenAlex
- W2152243292
- Cited by
- 109
- References
- 41
- Citations by year
- 2025: 3 · 2024: 3 · 2023: 1 · 2022: 6 · 2021: 6 · 2020: 9 · 2019: 4 · 2018: 8 · 2017: 8 · 2016: 7 · 2015: 5 · 2014: 9 · 2013: 6 · 2012: 12
- FWCI
- 5.14
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- European Journal of Neuroscience (publishedVersion)
- PubMed (publishedVersion)
- Dépôt institutionnel de l'Université libre de Bruxelles (Université Libre de Bruxelles) (submittedVersion)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
- Funders
- Comunidad de Madrid
- Consejo Nacional de Ciencia y Tecnología
- Ministerio de Economía y Competitividad
- Instituo Cajal
- Topics
- Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
- Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
- Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
- Keywords
- multiple sclerosis, endocannabinoid system, palmitoylethanolamide, cannabinoid receptors, CB2 receptor, CB1 receptor, PPARα, 2-arachidonoylglycerol, anandamide, fatty acid amide hydrolase, monoacylglycerol lipase, inflammatory cytokines, motor impairment, neuroinflammation, demyelination
- MeSH terms
- Amides, Animals, Anti-Inflammatory Agents, Antiviral Agents, Disease Models, Animal, Ethanolamines, Female, Humans, Motor Activity, Multiple Sclerosis, Pain, Palmitic Acids, Signal Transduction, Cytokines, Theilovirus, Receptor, Cannabinoid, CB1, Receptor, Cannabinoid, CB2, Rotarod Performance Test, PPAR alpha, Mice, Cannabinoid Receptor Modulators, Endocannabinoids
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