However, the expression levels of RNF139-AS1 and hsa-miR-125b-5p were inconsistent in different GC cell lines compared with normal gastric mucosa epithelial cells, as RNF139-AS1 showed higher expression in 5 GC cell lines and hsa-miR-125b-5p exhibited lower expression in 4 GC cell lines, which may be related to the selection of cell lines (Figure 4B, 4C). Here, RNF139 is linked to gastric cancer.