Curcumin increases intracellular accumulation of RHO-123 and DOX in K562/DOX cells. (A) Effects of VRP (10 µM) and curcumin (0.5, 1 or 2 µM) on intracellular accumulation of RHO-123 was detected by flow cytometry. 'FL-1H' means RHO-123 emitting light detection channel, x-axis means fluorescence signal was detected by FL-1H. (B) A quantification of the effect of VRP (10 µM) and curcumin (0.5, 1 or 2 µM) on intracellular accumulation of RHO-123. (C) Effects of VRP (10 Μm) and curcumin (0.5, 1 or 2 Μm) on intracellular accumulation of DOX. **P
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