Figure 6.

Effect of CA on cell proliferation of A549 cells in PDT of lung cancer cells. The amount of cellular ATP was estimated in terms of Relative Light Units (RLU). A dose-dependant decrease in the ATP luminescence corresponding to the cell proliferation in CA treated A549 cells was observed. Group 1 (Control), untreated cells; group 2, laser control (5 J/cm²); group 3 (PDT), PS (15 µM) + laser (5 J/cm²); group 4 (Phyto-PDT), CA (52 µM) + PS (15 µM) + laser (5 J/cm²); Values presented as mean ± SE from independent duplicate experiments; n = 4. * p < 0.05, ** p < 0.01 and *** p < 0.001.