New class of potent ligands for the human peripheral cannabinoid receptor
A new class of potent ligand for the human peripheral cannabinoid (hCB2) receptor is described. Two indole analogs 13 and 17 exhibited nanomolar potencies (Ki) with good selectivity for the hCB2 receptor over the human central cannabinoid (hCB1) receptor.
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2021, Pharmacological ResearchCitation Excerpt :The best known of this class is WIN 55212-2, 5-methyl-3-(morpholin-4-yl-methyl)-2,3-dihydro[1,4]oxazino[2,3,4-hi]indole substituted at position 6 by a 1-naphthylcarbonyl group, which presents good affinity for both CBRs, but higher for CB2R than CB1R [84]. Among these compounds, (2-methyl-1-propyl-1H-indol-3-yl)-1-naphthalenylmethanone (JWH-015, Fig. 5), (2-iodo-5-nitrophenyl)-[1-[(1-methylpiperidin-2-yl)methyl]indol-3-yl]methanone (AM1241, Figs. 5) and (2,3-dichlorophenyl)-[5-methoxy-2-methyl-3-(2-morpholin-4-ylethyl)indol-1-yl]methanone (GW 405833, Fig. 5), resulting from structural modifications of WIN 55212-2, are cannabimimetic indoles characterized by high affinity for CB2R and low affinity for CB1R [85–87]. The first evidence of a neuroprotective effect of JWH-015 (Fig. 5) was reported by Arévalo-Martìn et al. in a murine model of MS: the administration of JWH-015 to female SJL/J mice, susceptible to TMEV-induced demyelinating disease (TMEV-IDD) development (0.6 mg·kg–1 for 3 d, 0.9 mg·kg–1 on days 4–6, and 1.2 mg·kg–1 on the last 4 d), reduced microglial activation and major histocompatibility complex class II antigen expression.
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2019, European Journal of PharmacologyCitation Excerpt :Another example is the cannabinoid CB2 receptor agonist GW405833. Its affinity for human the cannabinoid CB2 receptor ranges from 4 to 12 nM (Gallant et al., 1996; Valenzano et al., 2005), with selectivities for the human cannabinoid CB2 receptor over the human cannabinoid CB1 receptor ranging from 37- to 1217-fold (Valenzano et al., 2005; Yao et al., 2009). However, its anti-inflammatory effects are caused by the cannabinoid CB1 receptor pathway rather than the cannabinoid CB2 receptor one (Li et al., 2017).
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