At first, EdU and colony formation assays were performed to examine the proliferation of GC cells in the above transfection groups, and results showed that GC cell proliferation was reduced by LINC00511 down‐regulation, while was recovered by the cotransfection of pcDNA3.1‐SOX4 (Figure 6A‐B). This evidence concerns the gene LINC00511 and gastric cancer.