ArticlePsychopharmacology2024
Evaluation of (S)-T1 and (S)-T2 ligands targeting α3β4 nAChR as potential nicotine addiction pharmacotherapy.
Article in Psychopharmacology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesSubstance use disorders (SUDs) represent a significant global health concern, demanding the development of effective pharmacological treatments. To address this, an investigation was conducted to examine the anti-addictive properties of two compounds, (S)-T1 and (S)-T2, which specifically target the α3β4 nicotinic acetylcholine receptor (nAChR).
methodsThe effects of (S)-T1 and (S)-T2 on nicotine-induced conditioned place preference (CPP), locomotor activity and dopamine levels in particular brain regions associated to addiction were investigated and compared in male C57BL/6N mice.
resultsThe results demonstrate that neither (S)-T1 nor (S)-T2 induced place conditioning or conditioned place aversion (CPA), suggesting the absence of rewarding or aversive effects. Both compounds significantly attenuated nicotine-induced CPP, with (S)-T1 exhibiting a dose-dependent effect. Furthermore, the co-administration of (S)-T2 (10 mg/kg) with nicotine markedly reduced locomotor activity compared to nicotine treatment alone. Additionally, dopamine analysis revealed that nicotine increased dopamine levels in the nucleus accumbens (NAc) and dorsal striatum, whereas the co-administration of (S)-T1 (1, 3, and 10 mg/kg) and (S)-T2 (10 mg/kg) significantly decreased dopamine levels in these brain regions. No significant effects were observed in the prefrontal cortex (PFC).
conclusionsThese findings suggest that (S)-T1 and (S)-T2 hold promise for treating nicotine addiction by attenuating nicotine-induced CPP and modulating dopamine release in key reward-related brain regions. Further research is needed to gain insights into the underlying mechanisms behind their anti-addictive effects and substantiate their potential for treating nicotine addiction.
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