Figure 4.

Suppression of luciferase activity in K562 cells after incubation with OEI-HA10/Tf-PEI/Luc-siRNA formulation. 40 min incubation of K562 cells with OEI-HA10 (70%)/Tf-PEI (30%)/Luc-siRNA formulation in 0.5/1 w/w ratio, showed a significant suppression in luciferase activity. White bar represents luciferase activity (%) in comparison to untreated control cells (100%) obtained by using Luc-siRNA and gray bar represents activities obtained with siCONTROL. Data are mean and relative SD of 5 similar experiments. Asterisk indicates statistical significance compared to control treated cells (*P<0.05; paired-sample t- test