Evaluation of the effects of resveratrol (RES) and prednisolone (P) on the BCL2 expression level using quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR). CCRF-CEM cells were cultured and treated with resveratrol (15, 50, and 100 µM) and prednisolone (700 µM). BCL2 was examined in CCRF-CEM cells after 12, 24, and 48 hours of resveratrol and prednisolone treatment. CCRF-CEM cells without treatment were used as a control to evaluate the relative expression of BCL2. The data are presented as mean±SD. The relative gene expression of the control was set as 1. (A) The BCL2 expression level in CCRF-CEM cells after 12 hours of treatment. (B) The BCL2 expression level in CCRF-CEM cells after 24 hours of treatment. (C) The BCL2 expression level in CCRF-CEM cells after 48 hours of treatment (^a)P<0.05, ^b)P<0.01).