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More MS news articles for July 2003

Biosynthesis of endocannabinoids and their modes of action in neurodegenerative diseases

Neurotox Res. 2003;5(3):183-200
van der Stelt M, Hansen HH, Veldhuis WB, Bar PR, Nicolay K, Veldink GA, Vliegenthart JF, Hansen HS.
Department of Bio-organic Chemistry, Bijvoet Center for Biomolecular Science, Padualaan 8, NL-3584 CH Utrecht University, Utrecht, The Netherlands.

Endocannabinoids are thought to function as retrograde messengers, which modulate neurotransmitter release by activating presynaptic cannabinoid receptors.

Anandamide and 2-arachidonoylglycerol (2-AG) are the two best studied endogenous lipids which can act as endocannabinoids.

Together with the proteins responsible for their biosynthesis, inactivation and the cannabinoid receptors, these lipids constitute the endocannabinoid system.

This system is proposed to be involved in various neurodegenerative diseases such as Parkinson's and Huntington's diseases as well as Multiple Sclerosis.

It has been demonstrated that the endocannabinoid system can protect neurons against glutamate excitotoxicity and acute neuronal damage in both in vitro and in vivo models.

In this paper we review the data concerning the involvement of the endocannabinoid system in neurodegenerative diseases in which neuronal cell death may be elicited by excitotoxicity.

We focus on the biosynthesis of endocannabinoids and on their modes of action in animal models of these neurodegenerative diseases.