MiR-122-5p and Dual Specificity Phosphatase 4 (DUSP4) were investigated concerning their impact on gastric cancer (GC) cell motility and invasiveness by Xu et al. They established the miR-122-5p binding sites on the 3′UTR of DUSP4 and the target connection between miR-122-5p and DUSP4 using bioinformatics prediction tools and dual luciferase reporter experiment. The gene discussed is DUSP4; the disease is gastric cancer.