Figure 9. Effect of DDX49 on invasion after HCC cells treat with morphine. Phase micrographs of invading HCC cells with DDX49 knock down or over expression in Matrigel invasion assay after exposure to control or morphine. Morphine QGY-7703 cells were treated with morphine (10μM) for 48h. *P < 0.05 compare to the respective control group. NS non-significant different.