Figure 3From: Protamine nanoparticles for improving shRNA-mediated anti-cancer effects Viability of A549 cells after treatment with free shBcl-2 and shBcl-2-loaded NPs. Viability of A549 cells after treatment with free shBcl-2 and shBcl-2-loaded NPs with the concentrations of shBcl-2 at 6, 10, and 15 ng/μL. *P < 0.05, vs the free shBcl-2 group treated with A549 cells.Back to article page