fig9

Figure 9. MRP1 transports a selected photosensitizer (Rose Bengal). Flow cytometry was performed to assess the intracellular fluorescence of photosensitizer. The raw mean fluorescence intensity values are reported for individual histograms. Rose bengal shows higher uptake in the presence of MRP1 inhibitor MK571. NT: Not treated, control; PS: photosensitizer only; PS+Inhibitor: photosensitizer + MK571.