MiR-29a suppresses metastasis by inhibiting metastasis-related genes, such as vascular endothelial growth factor A (VEGF-A)13, telomerase reverse transcriptase (TERT), integrinβ1 (ITGB1)14, and Roundabout homolog 1 (ROBO1)15 in vitro and/or in vivo in gastric cancer. Here, ROBO1 is linked to gastric cancer.