Fig. 4

P2X7 was highly expressed on the cell surface and shock waves increased the extracellular concentration of ATP in U2OS cells. a P2X7 receptor expression in U2OS cells. Representative images of anti-P2X7 antibody separate experiments are shown. b Cells treated with BFA, GdCl₃, and shock waves, and extracellular ATP concentrations were assessed in supernatants of the treated cells as indicated. Data are mean ± SD, n = 3, *p <0.05, Student, s t-test