Effect of miR-503 on cell cycle and cell growth. A, A representative cell cycle profile for vector control or miR-503 in UMSCC10B cells. B, Average of S phase populations. C, While miR-503 suppresses, anti-miR-503 increases cell growth. UMSCC10B cells were transfected with vector or miR-503, or scrambled oligo or anti-miR-503 and then grown for 4 days before MTT assays. Values in C are means ± SE of three separate experiments. **, p < 0.01; *, p < 0.05.