Having determined miR‐2355‐5p expression in GC, we next individually transfected miR‐2355‐5p‐antagomiR (anti‐miR‐2355‐5p) and miR‐2355‐5p‐agomiR (pre‐miR‐2355‐5p) into cells with 5‐FU resistance (Figure 4E) and assessed impacts on TMEM44‐AS1 expression (Figure S10, Supporting Information). Here, TMEM44-AS1 is linked to gastric cancer.