Linked Life Data

19027877

Source:http://linkedlifedata.com/resource/pubmed/id/19027877

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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-12-23
pubmed:abstractText
Although inhibitors of the enzymatic hydrolysis of the endocannabinoid 2-arachidonoylglycerol are available, they are either rather weak in vitro (IC(50)>30 microM) or their selectivity towards other proteins of the endocannabinoid system has not been tested. Here we describe the synthesis and activity in vitro and in vivo of a tetrahydrolipstatin analogue, OMDM169, as a potent inhibitor of 2-AG hydrolysis, capable of enhancing 2-AG levels and of exerting analgesic activity via indirect activation of cannabinoid receptors. OMDM169 exhibited 0.13 microM<IC(50)<0.41 microM towards 2-AG hydrolysing activities in COS-7 cells and rat cerebellum, and inhibited (IC(50)=0.89 microM) the human recombinant MAGL, whilst being inactive (K(i)>10 microM) at human CB(1) and CB(2) receptors. However, OMDM169 shared with tetrahydrolipstatin the capability of inhibiting the human pancreatic lipase (IC(50)=0.6 microM). OMDM169 inhibited fatty acid amide hydrolase and diacylglycerol lipase only at higher concentrations (IC(50)=3.0 and 2.8 microM, respectively), and, accordingly, it increased by approximately 1.6-fold the levels of 2-AG, but not anandamide, in intact ionomycin-stimulated N18TG2 neuroblastoma cells. Acute intraperitoneal (i.p.) administration of OMDM169 to mice inhibited the second phase of the formalin-induced nocifensive response with an IC(50) of approximately 2.5 mg/kg, and concomitantly elevated 2-AG, but not anandamide, levels in the ipsilateral paw of formalin-treated mice. The antinociceptive effect of OMDM169 was antagonized by antagonists of CB(1) and CB(2) receptors, AM251 and AM630, respectively (1 mg/kg, i.p.). OMDM69 might represent a template for the development of selective and even more potent inhibitors of 2-AG hydrolysis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:volume
1791
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-60
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Development of a potent inhibitor of 2-arachidonoylglycerol hydrolysis with antinociceptive activity in vivo.
pubmed:affiliation
Institute of Biomolecular Chemistry, C.N.R., Pozzuoli (Naples), Italy.
pubmed:publicationType
Journal Article