CHARACTERIZATION OF 5-HT3 RECEPTORS IN INTACT N1E-115 NEUROBLASTOMA-CELLS

被引:47
|
作者
LUMMIS, SCR
KILPATRICK, GJ
MARTIN, IL
机构
[1] MRC,MOLEC NEUROBIOL UNIT,CAMBRIDGE CB2 2QH,ENGLAND
[2] GLAXO GRP RES LTD,DEPT NEUROPHARMACOL,WARE SG12 0DP,HERTS,ENGLAND
关键词
5-HT3; RECEPTOR; N1E-115 NEUROBLASTOMA CELLS; GR65630;
D O I
10.1016/0922-4106(90)90026-T
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The highly selective 5-HT3 receptor antagonist [H-3]GR65630 has been used to characterize 5-HT3 receptors in intact N1E-115 neuroblastoma cells. Equilibrium binding analysis demonstrated high-affinity binding to a single class of receptors with a K(d) of 0.69 (+/- 0.12) nM and B(max) of 31.4 (+/- 11.4) fmol/10(5) cells, equivalent to approximately 200 000 sites per cell. Specific binding was displaced by low concentrations of 5-HT3-selective ligands, and by the nicotinic antagonist d-tubocurarine.
引用
收藏
页码:223 / 227
页数:5
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