Fig. 5From: Influence of hypoxia and irradiation on osteopontin expression in head and neck cancer and glioblastoma cell linesELISA from cell culture supernatants showing OPN-concentrations under normoxic (N = 21 % O2) and hypoxic (H = 0.1%O2) conditions 24 h and 48 h after irradiation with 0, 2 and 8 Gy in U251 (a) and U87 (b) glioblastoma cell lines. *marks significant differences between normoxic and hypoxic conditions with p < 0.05 for 24 and 48 hoursBack to article page