期刊
LIFE SCIENCES
卷 97, 期 1, 页码 55-63出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2013.09.011
关键词
Alkylindoles; Aromatic stacking; Cannabinoids; Herbal marijuana; Indoles; JWH-018; Pyrroles; Review; Spice; Synthetic cannabinoids
资金
- National Institute on Drug Abuse (NIDA) [DA-031988, DA-03672]
Originally synthesized for research purposes, indole- and pyrrole-derived synthetic cannabinoids are the most common psychoactive compounds contained in abused products marketed as spice or herbal incense. While 031 and CB2 receptor affinities are available for most of these research chemicals, in vivo pharmacological data are sparse. In mice, cannabinoids produce a characteristic profile of dose-dependent effects: antinociception, hypothermia, catalepsy and suppression of locomotion. In combination with receptor binding data, this tetrad battery has been useful in evaluation of the relationship between the structural features of synthetic cannabinoids and their in vivo cannabimimetic activity. Here, published tetrad studies are reviewed and additional in vivo data on synthetic cannabinoids are presented. Overall, the best predictor of likely cannabimimetic effects in the tetrad tests was good CBI receptor affinity. Further, retention of good C131 affinity and in vivo activity was observed across a wide array of structural manipulations of substituents of the prototypic aminoalkylindole molecule WIN55,212-2, including substitution of an alkyl for the morpholino group, replacement of an indole core with a pyrrole or phenylpyrrole, substitution of a phenylacetyl or tetramethylcyclopropyl group for JWH-018's naphthoyl, and halogenation of the naphthoyl group. This flexibility of cannabinoid ligand-receptor interactions has been a particular challenge for forensic scientists who have struggled to identify and regulate each new compound as it has appeared on the drug market. One of the most pressing future research needs is determination of the extent to which the phkmacology of these synthetic cannabinoids may differ from those of classical cannabinoids. (C) 2013 Elsevier Inc. All rights reserved.
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