Figure 6: Effect of rice bran hydrolysates on cell-mediated cytotoxicity. PBMCs (Effector cells: E) were treated with PHA and rice bran hydrolysates for 72 h, washed and non-adherent lymphocytes were overlaid on KKU-452 cells (Target cells: T) with T:E ratios of (A) 1:7.5 and (B) 1:15. The cells were co-cultured for 24 h, washed extensively and cell viability of KKU-452 cells was assessed by MTT assay. Each bar represents mean ± SD of 3-4 experiments. *P < 0.05 vs. Control, #P <0.05 vs. PHA.