FGFR2 and gastric cancer: MiR‐381‐3p, miR‐494, miR‐5701, and miR‐519e‐5p also directly target FGFR2 to inhibit its expression and gastric cancer progression, while methyl‐CpG‐binding domain protein 1 and histone deacetylase 3 bind to form a complex that inhibits miR‐5701 expression, thereby restoring FGFR2 levels.219, 220, 221