Fig. 4.

Suppression of NAMPT protein expression by miR-154. Quantitation of NAMPT protein level in (a) MCF-7 and (b) MDA-MB-231 cells transfected with the mimic of miR-154 or its inhibitor. Negative controls (NC) were also used for transfection. The results were compared to untreated control. Graphs represent the mean ± SD of the results of the densitometric analysis of the blotting images normalized to GAPDH as the internal control and presented relative to those in control cells. Representative immunoblot images of NAMPT protein measurement in (c) MCF-7 and (d) MDA-MB-231 cells. *P < 0.05, **P < 0.01, *** P < 0.001