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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1988-2-2
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pubmed:abstractText |
Experiments were carried out to show that the 7315c tumor cell possesses mu-, but apparently not delta- or kappa-opioid receptors. The binding data for [3H]Tyr-D-Ala-Gly-Me-Phe-Gly-ol ([3H]DAGO) indicate the presence of one class of high affinity site (Kd = 1.5 +/- 0.3 nM, Bmax = 50 fmol/mg). An irreversible alkylating agent, 2-(p-ethoxybenzyl) 1-diethylaminoethyl-5-isothiocyanobenzimidazole isothiocyanate (BIT), with selectivity for mu- over delta-opioid receptors, completely blocked [3H]Tyr-D-Ala-Gly-Phe-Met-NH2 ([3H]DALAMID) binding to 7315c cell membranes. Another irreversible alkylating agent, fentanyl isothiocyanate (FIT) with selectivity for delta- over mu-opioid receptors, had no effect on [3H]DALAMID binding. Since [3H]DALAMID binds equally well to mu- and delta-opioid receptors, these results indicate the presence of mu- but not delta-opioid receptors on 7315c cells. The Ki of U50488, a kappa selective ligand, for [3H]ethylketocyclazocine ([3H]EKC) binding sites was 400 +/- 100 nM, suggesting the absence of kappa-opioid receptors on the 7315c tumor cell. These results are consistent with the presence of mu-opioid receptors in 7315c tumor cells.
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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/Cyclazocine,
http://linkedlifedata.com/resource/pubmed/chemical/Enkephalin, Ala(2)-MePhe(4)-Gly(5)-,
http://linkedlifedata.com/resource/pubmed/chemical/Enkephalin, Methionine,
http://linkedlifedata.com/resource/pubmed/chemical/Enkephalins,
http://linkedlifedata.com/resource/pubmed/chemical/Ethylketocyclazocine,
http://linkedlifedata.com/resource/pubmed/chemical/Oligopeptides,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Opioid,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Opioid, mu,
http://linkedlifedata.com/resource/pubmed/chemical/deltakephalin,
http://linkedlifedata.com/resource/pubmed/chemical/enkephalinamide-Met, Ala(2)-
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
143
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
127-30
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:2826184-Cell Membrane,
pubmed-meshheading:2826184-Cyclazocine,
pubmed-meshheading:2826184-Enkephalin, Ala(2)-MePhe(4)-Gly(5)-,
pubmed-meshheading:2826184-Enkephalin, Methionine,
pubmed-meshheading:2826184-Enkephalins,
pubmed-meshheading:2826184-Ethylketocyclazocine,
pubmed-meshheading:2826184-Oligopeptides,
pubmed-meshheading:2826184-Receptors, Opioid,
pubmed-meshheading:2826184-Receptors, Opioid, mu,
pubmed-meshheading:2826184-Tumor Cells, Cultured
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pubmed:year |
1987
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pubmed:articleTitle |
The mu-opioid receptor in the 7315c tumor cell.
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pubmed:affiliation |
Département de Biologie, Rhone-Poulenc Santé, Centre de Recherches de Vitry, Vitry sur Seine, France.
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pubmed:publicationType |
Journal Article
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