Linked Life Data

10650181

Source:http://linkedlifedata.com/resource/pubmed/id/10650181

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-3-28
pubmed:abstractText
We demonstrated that in vivo administration of Delta(9)-tetrahydrocannabinol in mice (15 mg/kg s.c.) significantly inhibited natural killer cell (NK) cytolytic activity without affecting Concanavalin A (ConA)-induced splenocyte proliferation. Moreover, we investigated the effect of in vivo pretreatment with cannabinoid receptor antagonists, namely, the selective cannabinoid CB(1) receptor antagonist SR 141716 [N-piperidin-5-(4-chlorophenyl)-1-(2, 4-dichlorophenyl)-4-methyl-3-pyrazolecarboxamide] and the selective cannabinoid CB(2) receptor antagonist SR 144528 ¿N-[(1S)-endo-1,3, 3-trimethyl bicyclo [2.2.1] heptan-2-yl]-5-(4-chloro-3-methylphenyl)-1-(4-methylbenzyl)-pyrazo le- 3-carboxamide¿, on Delta(9)-tetrahydrocannabinol-induced inhibition of NK cytolytic activity. Both antagonists partially reversed the Delta(9)-tetrahydrocannabinol inhibition of NK cytolytic activity, although the cannabinoid CB(1) receptor antagonist was more effective than the cannabinoid CB(2) receptor antagonist. The parallel measurement of interferon gamma and interleukin 2 levels revealed that Delta(9)-tetrahydrocannabinol significantly reduced (about 70%) the former cytokine without affecting the latter. Cannabinoid CB(1) and CB(2) receptor antagonists completely reversed the interferon gamma reduction induced by Delta(9)-tetrahydrocannabinol. Our results indicate that both types of cannabinoid receptors are involved in the complex network mediating NK cytolytic activity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
387
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
343-7
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Relative involvement of cannabinoid CB(1) and CB(2) receptors in the Delta(9)-tetrahydrocannabinol-induced inhibition of natural killer activity.
pubmed:affiliation
Department of Pharmacology, Chemotherapy and Toxicology, University of Milan, Via Vanvitelli 32/A, 20129, Milan, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't