Cayman 2-Arachidonoyl Glycerol

2-Arachidonoyl glycerol (2-AG) is an endogenous agonist of the cannabinoid (CB) receptors CB₁ and CB₂ (K_is = 25.3-472 and 145-1,400 nM, respectively).^,, Unlike arachidonoyl ethanolamide (AEA; Item No. ), 2-AG is present at relatively high levels in the central nervous system and is the most abundant molecular species of monoacylglycerol (MAG) found in rat brain.^, Formation of 2-AG is calcium-dependent and is mediated by the activities of phospholipase C (PLC) and diacylglycerol (DAG) lipase. 2-AG acts as a full agonist at the CB₁ receptor. At a concentration of 0.3 nM, 2-AG induces a rapid, transient increase in intracellular free calcium in NG108-15 neuroblastoma X glioma cells through a CB₁ receptor-dependent mechanism. 2-AG is metabolized in vitro by MAG lipase and fatty acid amide hydrolase (FAAH), with MAG lipase likely being the principle metabolizing enzyme in vivo.

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