Figure 3. MiR-141 inhibits HNSCC cell proliferation. (A) MTT assays showing the effect of miR-141 mimic and inhibitor on FaDu and Cal-27 cell proliferation. (B-E) Western blots and real-time PCR were used to detect the expression of CDK4 in FaDu and Cal-27 cells expressing miR-141 mimic or inhibitor. Bars depict the mean ± SD. ** P< 0.05 vs. control.