Figure 3. Results of YO-PRO-1 dye uptake test. oATP was pre-incubated for 2 h before ATP incubation and decreased YO-PRO-1 uptake (A); KN-62 was pre-incubated for 30 min before BzATP incubation and decreased YO-PRO-1 uptake (B); PPADS was pre-incubated 30 min before ATP incubation and decreased YO-PRO-1 uptake (C).