Displacement of [3H]nisoxetine from recombinant human norepinephrine transporter expressed in CHO cells at 1 uM after 120 mins by scintillation counting analysis relative to control
Inhibition of human NET expressed in HEK293 cells assessed as reduction of serotonin reuptake using [3H]-NET at 1 uM after 15 mins by liquid scintillation counting relative to GBR-12909
Inhibition of human NET expressed in HEK293 cells assessed as reduction of serotonin reuptake using [3H]-NET at 3 uM after 15 mins by liquid scintillation counting relative to venlafaxine HCl
Inhibition of human NET expressed in HEK293 cells assessed as reduction of serotonin reuptake using [3H]-NET after 15 mins by liquid scintillation counting
Radioligand Binding Assay: Compounds were dissolved in 100% DMSO at a concentration 100 times the desired highest assay concentration, serially diluted 1:3 in 100% DMSO, and 1.0 ul/well of each solution was dispensed to a Nunc polypropylene, round bottom, 384-well plate. 100% inhibition is defined with 1.0 ul/well of 10 mM desipramine dissolved in DMSO. 50 ul/well of a 2x membrane preparation (0.4 mg/ml in 50 mM Tris-Cl, pH 7.5, 120 mM NaCl, 5 mM KCl) and 50 ul/well of a 2x radioligand solution (4 nM [3H]nisoxetine in 50 mM Tris-Cl, pH 7.5, 120 mM NaCl, 5 mM KCl) were added to the well and the reaction incubated for 1 hour at room temperature. The contents of the assay plate were then transferred to a Millipore MultiscreenHTS GF/B filter plate which was pretreated with 0.5% PEI for at least one hour. The plate was vacuum filtered and washed with 7 washes of 100 ul/well 50 mM Tris-Cl, pH 7.5, 120 mM NaCl, 5 mM KCl chilled to 4 C.