5-HT6 receptors positively coupled to adenylyl cyclase in striatal neurones in culture

1 December 1994

journal article
research article
Published by Wolters Kluwer Health in NeuroReport

Vol. 5 (18) , 2553-2557
https://doi.org/10.1097/00001756-199412000-00037

Abstract

5-HT receptor positively coupled to adenylyl cyclase in striatal neurones in culture does not correspond to the 5-HT₄ receptor. 5-HT induces an increase in cAMP level with an EC₅₀ of 125 nM. 5-HT agonists displayed the following rank order of potencies 5-HT > LSD > 5-MeOT > 5-CT. 8-OH-DPAT, RU 24969 and cisapride were inactive. The most efficacious antagonists were methiothepin and tricyclic antipsychotic drugs (clozapine, amitriptyline and nortryptyline). The pharmacological profile defined by both functional studies (cAMP level) and binding experiments ([¹²⁵I]-LSD binding), and its localization in striatal neurones are in favour of the presence of the recently cloned 5-HTt receptor in these cells.

Keywords

This publication has 0 references indexed in Scilit: