ALDH1A1 and gastric cancer: Silencing miR-95 or overexpressing the miR‐95 inhibitor (dual-specificity phosphatase 5) suppressed ALDH1 expression and tumor sphere formation in GC cells (BGC803), and GC development was inhibited via the dual-specificity phosphatase 5‐dependent mitogen-activated protein kinase pathway mediated by miR‐95 knockdown [45].