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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1997-6-16
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pubmed:abstractText |
We have discovered two substituted 4-aminopiperidine compounds having high in vitro affinity and selectivity for the human dopamine D1 receptor. Both compounds, 3-ethoxy-N-methyl-N-[1-(phenylmethyl)-4-piperidinyl]-2-pyridinylamine (U-99363E), and its 3-isopropoxy analog (U-101958), were found through a routine receptor binding screen. The determined affinities (Ki) of these compounds for the cloned human dopamine D4 receptor were 2.2 and 1.4 nM, respectively. They exhibited at least 100-fold lower affinities for dopamine D2 and for other dopaminergic, serotonergic and adrenergic receptors. Both compounds were found to antagonize quinpirole-induced mitogenesis in Chinese hamster ovary cells expressing the human dopamine D4 receptor. In spite of their poor metabolic stability and low bioavailability. U-99363E and U-101958 appear to be among the first high-affinity, highly selective dopamine D4 receptor antagonists reported, and may have utility in in vitro investigations requiring selective tagging or blockade of dopamine D4 sites.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Aminopyridines,
http://linkedlifedata.com/resource/pubmed/chemical/DRD4 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Piperidines,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Dopamine D2,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Dopamine D4,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
19
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pubmed:volume |
322
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
283-6
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pubmed:dateRevised |
2005-11-17
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pubmed:meshHeading |
pubmed-meshheading:9098699-Aminopyridines,
pubmed-meshheading:9098699-Animals,
pubmed-meshheading:9098699-CHO Cells,
pubmed-meshheading:9098699-Cricetinae,
pubmed-meshheading:9098699-Humans,
pubmed-meshheading:9098699-Mitosis,
pubmed-meshheading:9098699-Piperidines,
pubmed-meshheading:9098699-Receptors, Dopamine D2,
pubmed-meshheading:9098699-Receptors, Dopamine D4,
pubmed-meshheading:9098699-Recombinant Proteins,
pubmed-meshheading:9098699-Signal Transduction
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pubmed:year |
1997
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pubmed:articleTitle |
Substituted 4-aminopiperidines having high in vitro affinity and selectivity for the cloned human dopamine D4 receptor.
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pubmed:affiliation |
Pharmacia & Upjohn, Inc., Kalamazoo, MI 49001, USA.
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pubmed:publicationType |
Journal Article
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