| Assay Method Information | |
| | Inhibition Assay |
| Description: | The dose dependent inhibition of OCT2 mediated uptake of a model substrate 14C-Tetraethylammonium (TEA) by test compounds was studied in wild-type and OCT2-transfected MDCKII cells at 7 concentrations from 0.014 μM to 10 μM.MDCKII cells were maintained in minimal essential medium (MEM) with 1% Pen/Strep, 10% fetal bovine serum, and 0.25 mg/mL hygromycin B in an incubator set at 37° C., 90% humidity and 5% CO2. 24 hours prior to assay, media containing 5 mM sodium butyrate were added to MDCKII cells in flasks, and cells were grown to 80-90% confluence. On assay day, cells were trypsinized and resuspended in Krebs-Henseleit Buffer (KHB), pH 7.4 at 5×106 million cells/mL. Cells were preincubated for 15 min in assay plate before addition of test compound or substrate. |
| Affinity data for this assay | |
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