KRT2 and gastric cancer: In recent years, more and more researchers have attempted to explore the therapeutic targets of GC by microarray analysis of genes and miRNA expression profiles [14–16], and many genes like ALDOB, MT1H, and KRT2, as well as miRNAs such as miR-495-3p, miR-421, and miR-658 have been shown to be differentially expressed in GC tissues, compared to healthy control tissues [14–16].