Figure 3.

Western blot. Concentration-dependent effect of venetoclax (0.01–10 µM) and 20 µM of rifampicin (positive control for P-gp) after four days on P-gp (a) and CYP1A2 (b) protein expression in LS180 cells compared to untreated medium control. β-actin served as a loading control. Depicted is one blot of a series of three.