PDCD4 and neoplasm: As shown in Figure 7, we observed that Pdcd4 and miR-34a were significantly downregulated, whereas CD24, Src, and miR-21 were significantly upregulated in the tumor tissues as compared to the respective normal tissues (p = 0.003; p = 0.05; p = 0.001; p = 0.05 and p = 0.002; respectively).