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Cannabidiol causes endothelium-dependent vasorelaxation of human mesenteric arteries via CB1 activation.
- Source :
-
Cardiovascular research [Cardiovasc Res] 2015 Sep 01; Vol. 107 (4), pp. 568-78. Date of Electronic Publication: 2015 Jun 19. - Publication Year :
- 2015
-
Abstract
- Aims: The protective effects of cannabidiol (CBD) have been widely shown in preclinical models and have translated into medicines for the treatment of multiple sclerosis and epilepsy. However, the direct vascular effects of CBD in humans are unknown.<br />Methods and Results: Using wire myography, the vascular effects of CBD were assessed in human mesenteric arteries, and the mechanisms of action probed pharmacologically. CBD-induced intracellular signalling was characterized using human aortic endothelial cells (HAECs). CBD caused acute, non-recoverable vasorelaxation of human mesenteric arteries with an Rmax of ∼ 40%. This was inhibited by cannabinoid receptor 1 (CB1) receptor antagonists, desensitization of transient receptor potential channels using capsaicin, removal of the endothelium, and inhibition of potassium efflux. There was no role for cannabinoid receptor-2 (CB2) receptor, peroxisome proliferator activated receptor (PPAR)γ, the novel endothelial cannabinoid receptor (CBe), or cyclooxygenase. CBD-induced vasorelaxation was blunted in males, and in patients with type 2 diabetes or hypercholesterolemia. In HAECs, CBD significantly reduced phosphorylated JNK, NFκB, p70s6 K and STAT5, and significantly increased phosphorylated CREB, ERK1/2, and Akt levels. CBD also increased phosphorylated eNOS (ser1177), which was correlated with increased levels of ERK1/2 and Akt levels. CB1 receptor antagonism prevented the increase in eNOS phosphorylation.<br />Conclusion: This study shows, for the first time, that CBD causes vasorelaxation of human mesenteric arteries via activation of CB1 and TRP channels, and is endothelium- and nitric oxide-dependent.<br /> (© The Author 2015. Published by Oxford University Press on behalf of the European Society of Cardiology.)
- Subjects :
- Adult
Aged
Aged, 80 and over
Endothelium, Vascular metabolism
Female
Humans
Male
Middle Aged
Multiple Sclerosis drug therapy
Nitric Oxide metabolism
Vasodilator Agents pharmacology
Cannabidiol pharmacology
Endothelium, Vascular drug effects
Mesenteric Arteries drug effects
Receptor, Cannabinoid, CB1 metabolism
Vasodilation drug effects
Subjects
Details
- Language :
- English
- ISSN :
- 1755-3245
- Volume :
- 107
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Cardiovascular research
- Publication Type :
- Academic Journal
- Accession number :
- 26092099
- Full Text :
- https://doi.org/10.1093/cvr/cvv179