Figure 5. P2X7 receptor expression and
activation on retinal epithelial cells. Cells were fixed,
permeabilized, and then incubated with a P2X7 antibody (A).
Nuclei were stained with propidium iodide. Cells were observed using
the confocal microscopy. P2X7 receptor activation by ATP and BzATP
causes YO-PRO-1 dye uptake in retinal cells (B).