期刊
BRITISH JOURNAL OF PHARMACOLOGY
卷 142, 期 8, 页码 1209-1218出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bjp.0705881
关键词
aminoalkylindoles; anandamide; cyclic AMP; Ca2+ channels; CP55940; cerebellar membranes; CB1 receptor (-/-) transgenic mice; G protein-coupled receptors; GTP gamma S binding; levonantradol; radioligand binding assays; receptor immunoprecipitation; Delta(9)-tetrahydrocannabinol; WIN55212-2
资金
- NIDA NIH HHS [R01 DA003690] Funding Source: Medline
CB1 receptor cellular signal transduction is dependent on the expression of G proteins to which the receptor couples, the potential for precoupling of particular G proteins to the receptors either by scaffolding mechanisms or colocalization in lipid raft domains, and the effector mechanisms that these transducer molecules regulate. This discourse will evaluate studies of efficacy for CB1 receptor-Gi/o activation at the molecular level. Evidence for brain regional differences in CB1 receptor signal transduction efficacy and agonist selectivity for G proteins will be summarized. The possibility that CB1 receptors interact with Gs or Gq will be evaluated, and questions with regard to the constitutive activity and G protein sequestration will be posed.
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