Fig. 8From: Expression of MATE1, P-gp, OCTN1 and OCTN2, in epithelial and immune cells in the lung of COPD and healthy individualsInvestigation of the functional activity of MATE1 and P-gp in THP-1 cells using transporter inhibitors. Uptake in differentiated THP-1 cells 72 h after PMA induction overnight. a Metformin (11 μM) uptake with (◊) and without (●) pyrimethamine (1 μM) in the incubation and (b) digoxin (0.5 μM) uptake with (◊) and without (●) elacridar (10 μM) in the incubation. Results are given as mean ± S.D., n = 5 to 6 for each time point. *** p < 0.001Back to article page