Correlation between the potency of hallucinogens in the mouse head-twitch response assay and their behavioral and subjective effects in other species

被引:163
作者
Halberstadt, Adam L. [1 ,2 ]
Chatha, Muhammad [1 ]
Klein, Adam K. [1 ]
Wallach, Jason [3 ,4 ]
Brandt, Simon D. [5 ]
机构
[1] Univ Calif San Diego, Dept Psychiat, 9500 Gilman Dr, La Jolla, CA 92093 USA
[2] VA San Diego Healthcare Syst, Res Serv, San Diego, CA USA
[3] Univ Sci, Dept Pharmaceut Sci, Philadelphia, PA USA
[4] Univ Sci, Subst Use Disorders Inst, Philadelphia, PA USA
[5] Liverpool John Moores Univ, Sch Pharm & Biomol Sci, Liverpool, Merseyside, England
关键词
Psychedelic; Psilocybin; Mescaline; N; N-dimethyltryptamine; DMT; NBOMe; DOM; Behavioral model; Head shake; DISCRIMINATIVE STIMULUS PROPERTIES; LYSERGIC-ACID DIETHYLAMIDE; LIFE-THREATENING CANCER; LSD-LIKE ACTIVITY; DRUG DISCRIMINATION; PHARMACOLOGICAL CHARACTERIZATION; DIHYDROBENZOFURAN ANALOGS; PSILOCYBIN TREATMENT; SEROTONIN RECEPTOR; 5-HT2C RECEPTORS;
D O I
10.1016/j.neuropharm.2019.107933
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Serotonergic hallucinogens such as lysergic acid diethylamide (LSD) induce head twitches in rodents via 5-HT2A receptor activation. The goal of the present investigation was to determine whether a correlation exists between the potency of hallucinogens in the mouse head-twitch response (HTR) paradigm and their reported potencies in other species, specifically rats and humans. Dose-response experiments were conducted with phenylalkylamine and tryptamine hallucinogens in C57BL/6J mice, enlarging the available pool of HTR potency data to 41 total compounds. For agents where human data are available (n = 36), a strong positive correlation (r = 0.9448) was found between HTR potencies in mice and reported hallucinogenic potencies in humans. HTR potencies were also found to be correlated with published drug discrimination ED50 values for substitution in rats trained with either LSD (r = 0.9484, n = 16) or 2,5-dimethoxy-4-methylamphetamine (r = 0.9564, n = 21). All three of these behavioral effects (HTR in mice, hallucinogen discriminative stimulus effects in rats, and psychedelic effects in humans) have been linked to 5-HT2A receptor activation. We present evidence that hallucinogens induce these three effects with remarkably consistent potencies. In addition to having high construct validity, the HTR assay also appears to show significant predictive validity, confirming its translational relevance for predicting subjective potency of hallucinogens in humans. These findings support the use of the HTR paradigm as a preclinical model of hallucinogen psychopharmacology and in structure-activity relationship studies of hallucinogens. Future investigations with a larger number of test agents will evaluate whether the HTR assay can be used to predict the hallucinogenic potency of 5-HT2A agonists in humans. "This article is part of the special issue entitled 'Serotonin Research: Crossing Scales and Boundaries'.
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页数:12
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