Cannabinoid receptor ligands as potential anticancer agents--high hopes for new therapies?

Oesch, Susanne; Gertsch, Jürg (2009). Cannabinoid receptor ligands as potential anticancer agents--high hopes for new therapies? Journal of pharmacy and pharmacology, 61(7), pp. 839-53. London: Royal Pharmaceutical Society of Great Britain 10.1211/jpp/61.07.0002

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OBJECTIVES: The endocannabinoid system is an endogenous lipid signalling network comprising arachidonic-acid-derived ligands, cannabinoid (CB) receptors, transporters and endocannabinoid degrading enzymes. The CB(1) receptor is predominantly expressed in neurons but is also co-expressed with the CB(2) receptor in peripheral tissues. In recent years, CB receptor ligands, including Delta(9)-tetrahydrocannabinol, have been proposed as potential anticancer agents. KEY FINDINGS: This review critically discusses the pharmacology of CB receptor activation as a novel therapeutic anticancer strategy in terms of ligand selectivity, tissue specificity and potency. Intriguingly, antitumour effects mediated by cannabinoids are not confined to inhibition of cancer cell proliferation; cannabinoids also reduce angiogenesis, cell migration and metastasis, inhibit carcinogenesis and attenuate inflammatory processes. In the last decade several new selective CB(1) and CB(2) receptor agents have been described, but most studies in the area of cancer research have used non-selective CB ligands. Moreover, many of these ligands exert prominent CB receptor-independent pharmacological effects, such as activation of the G-protein-coupled receptor GPR55, peroxisome proliferator-activated receptor gamma and the transient receptor potential vanilloid channels. SUMMARY: The role of the endocannabinoid system in tumourigenesis is still poorly understood and the molecular mechanisms of cannabinoid anticancer action need to be elucidated. The development of CB(2)-selective anticancer agents could be advantageous in light of the unwanted central effects exerted by CB(1) receptor ligands. Probably the most interesting question is whether cannabinoids could be useful in chemoprevention or in combination with established chemotherapeutic agents.

Item Type:	Journal Article (Further Contribution)
Division/Institute:	04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Biochemistry and Molecular Medicine
UniBE Contributor:	Gertsch, Jürg
ISSN:	0022-3573
Publisher:	Royal Pharmaceutical Society of Great Britain
Language:	English
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 15:12
Last Modified:	05 Dec 2022 14:22
Publisher DOI:	10.1211/jpp/61.07.0002
PubMed ID:	19589225
Web of Science ID:	000268358900002
URI:	https://boris.unibe.ch/id/eprint/31619 (FactScience: 196250)