COL5A1 and gastric cancer: Bioinformatics analyses showed that COL5A1 was highly expressed in GC, while previous prediction analyses showed that the mature miRNA regulating COL5A1 was only miR-137-3p (Table 2, Figure 2D), which was expressed at low levels in GC, suggesting that miR-137-3p and COL5A1 were involved in the progression of GC.