2527343

Localization of the dopamine uptake complex using [3H]N-[1-(2-benzo(b)thiophenyl)cyclohexyl]piperidine ([3H]BTCP) in rat brain.

Article date: 1989/5/22

PubMed ID: 2527343

Journal name: Neuroscience letters (ISSN: 0304-3940)

ABSTRACT

[3H]N-[1-(2-Benzo(b)thiophenyl)cyclohexyl]piperidine ([3H]BTCP) is a novel phencyclidine derivative with considerable selectivity for dopamine uptake sites. [3H]BTCP was used to label dopamine uptake sites in vitro, in rat brain, and the regions containing these sites were visualized with an autoradiographic technique. The binding was found to be highest in the striatum, where greater than 90% of binding was specific. Furthermore, 6-hydroxydopamine lesions of the nigrostriatal pathway obliterated striatal [3H]BTCP binding ipsilaterally, whereas ibotenic acid injection into the caudate-putamen failed to significantly reduce [3H]BTCP binding in that structure. These results indicate that [3H]BTCP labels dopamine uptake sites in mammalian brain and that it can be employed for autoradiographic studies of this transport complex.

Author List: Filloux F, Hunt M A, Wamsley J K

Publication Types: Journal Article; Research Support, U.S. Gov't, P.H.S.

Substances mentioned in the article: Dopamine Plasma Membrane Transport Proteins; Hydroxydopamines; Membrane Proteins; Nerve Tissue Proteins; Neurotransmitter Uptake Inhibitors; 1-(1-(2-benzo(b)thienyl)cyclohexyl)piperidine; Ibotenic Acid; Oxidopamine; Phencyclidine; Dopamine;

Mesh terms: Animals; Brain/drug effects; Corpus Striatum/metabolism; Dopamine/metabolism; Dopamine Plasma Membrane Transport Proteins; Hydroxydopamines/pharmacology; Ibotenic Acid/pharmacology; Male; Membrane Proteins/metabolism; Nerve Tissue Proteins/metabolism; Neurotransmitter Uptake Inhibitors/pharmacology; Oxidopamine; Phencyclidine/analogs & derivatives; Rats; Rats, Inbred Strains; Substantia Nigra/metabolism;

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