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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
11
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pubmed:dateCreated |
1995-7-18
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pubmed:abstractText |
The in vitro biological characterization of a series of 4-(alkylamino)-1,4-dihydroquinolines is reported. These compounds are novel inhibitors of voltage-activated n-type potassium ion (K+) channels in human T lymphocytes. This series, identified from random screening, was found to inhibit [125I]charybdotoxin binding to n-type K+ channels with IC50 values ranging from 10(-6) to 10(-8) M. These analogs also inhibit whole cell n-type K+ currents with IC50 values from 10(-5) to 10(-7) M. The preparation of a series of new 4-(alkylamino)-1,4-dihydroquinolines is described. Structure-activity relationships are discussed. Naphthyl analog 7c, the best compound prepared, exhibited > 100-fold selectivity for inhibition of [125I]charybdotoxin binding to n-type K+ channels compared with inhibition of [3H]dofetilide binding to cardiac K+ channels. These compounds represent a potent and selective series of n-type K+ channel inhibitors that have the potential for further development as anti-inflammatory agents.
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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/Charybdotoxin,
http://linkedlifedata.com/resource/pubmed/chemical/Iodine Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Potassium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Quinolines,
http://linkedlifedata.com/resource/pubmed/chemical/Scorpion Venoms
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0022-2623
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
26
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pubmed:volume |
38
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
1877-83
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7540207-Charybdotoxin,
pubmed-meshheading:7540207-Computer Simulation,
pubmed-meshheading:7540207-Humans,
pubmed-meshheading:7540207-Iodine Radioisotopes,
pubmed-meshheading:7540207-Kinetics,
pubmed-meshheading:7540207-Membrane Potentials,
pubmed-meshheading:7540207-Models, Molecular,
pubmed-meshheading:7540207-Potassium Channels,
pubmed-meshheading:7540207-Quinolines,
pubmed-meshheading:7540207-Scorpion Venoms,
pubmed-meshheading:7540207-Structure-Activity Relationship,
pubmed-meshheading:7540207-T-Lymphocytes
|
pubmed:year |
1995
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pubmed:articleTitle |
Novel inhibitors of potassium ion channels on human T lymphocytes.
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pubmed:affiliation |
Sanofi Winthrop Inc., Collegeville, Pennsylvania 19426, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study
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