To further investigate the underlying mechanism of miR-223-3p in gastric cancer cell proliferation and migration, we used different databases such as TargetScan, Mirnada and miRBase to predict the targets of miR-223-3p and found that ARID1A (a member of the SWI/SNF family) might be targeted by miR-223-3p. The gene discussed is ARID1A; the disease is gastric cancer.