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. 2023 Mar 15;62(4):55. doi: 10.3892/ijo.2023.5503

Figure 3.

Figure 3

Effects of low-dose PDT on the viability and proliferation of HU-231 cells. (A and B) Cell proliferative ability of the cells in the control group, NC group, PDT group, Ad-ALK1 group and PDT + Ad-ALK1 group. (C and D) Proliferative ability of the cells in the five groups. The red colour represents the proliferating cells stained with EdU, and the blue colour represents all cells stained with Hoechst 33342 (scale bars, 30 µm. *P<0.05, **P<0.01 and ***P<0.001. NC, negative control; Ad, adenovirus; PDT, photodynamic therapy; ALK1, activin receptor-like kinase-1.