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| | Inhbition Assay |
| Description: | Compounds of the Examples 1 to 3 were assayed for V79-Human-CYP11B2 and V79-Human-CYP11B1 by modifying the protocol described in J. Steroid Biochem. Mol. Biol. 81; 173-179 (2002). V79MZh11B1 and V79MZh11B2 cells (8x105 cells/well) were grown on 24-well culture plates until confluence. Before testing, the DMEM culture medium was removed and 450 ul of fresh DMEM containing the inhibitor was added to each well. After a preincubation step of 60 min at 37° C., the reaction was started by the addition of 50 ul of DMEM in which the substrate deoxycorticosterone (containing 0.15 uCi of [1,2-3H]-deoxycorticosterone in ethanol, final test concentration 100 nM) was dissolved. Incubation times were 25 min for V79MZh11B1 and 50 min for V79MZh11B2 cells at 37° C., respectively. The enzyme reactions were stopped by extracting the supernatant with ethyl acetate. Samples were centrifuged (10.000 g, 5 min) and the solvent was pipetted into fresh cups. After evaporation of the solvent, the steroids were redissolved in 40 ul of methanol (50:50, v/v) and analyzed by HPLC. Detection and quantification of the steroids were performed using a radioflow detector. |
| Affinity data for this assay | |
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