HOXA11 and gastric cancer: Correspondingly, downregulation of HOXA11 in MGC-803 parental cells reduced adhesion to HPMC to the levels shown by parental shControl cells (MGC803: #1: P<0.001 and #2: P<0.0001), confirming that HOXA11 promote gastric cancer cells to adhere to the peritoneal mesothelium.