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Inhibition rate of Rana catesbeiana ribonuclease (RC-RNase) in glioblastoma cell lines. (A) Human glioblastoma GBM8901, GBM8401 and DBTRG and rat glioblastoma RG2 cells were treated with 20 µg/ml RC-RNase. (B) DBTRG cells were treated with 2, 20 and 50 µg/ml RC-RNase. The inhibiton of cells was measured every 24 h. The data were obatined from four triplicate groups and expressed as the mean ± standard deviation.
