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Radiation induced the expression of H19, and downregulation of H19 increased the radiosensitivity of glioma cells. (a) Real-time PCR analysis of the H19 expression in T98G, U87, and U251 cells at 24 h and 48 h postirradiation (n = 3). (b) Clonogenic survival data of T98G, U87, and U251 cells transfected with siRNA-ctrl or siRNA-H19 after irradiation with X-rays (n = 3). ∗p < 0.05; ∗∗p < 0.01 compared with the control group.
