Figure 2: (a) The effect of 15-PGDH expression on the growth of gastric cancer cells (MTT method) (pcDNA3/15- PGDH-1 and pcDNA3/15-PGDH-2 groups vs. other groups, p<0.05). (b) The effect of 15-PGDH gene transfection on the migration of human gastric cancer SGC7901 cells (light micrographs). □, □, □ and □ represent blank, pcDNA3, pcDNA3/15-PGDH-1, pcDNA3/15-PGDH-2 groups with scratch-wounds at 48h, respectively (×4). (c) The effect of 15-PGDH on the colony formation of SGC-7901 cells ( p<0.05).