MiR‐300 overexpression promoted the proliferation and metastasis of GC cells and inhibited GC cell apoptosis, which was verified by Transwell assays, colony formation assay, EdU assay, and Annexin V‐FITC apoptosis detection assays (Figure 5A–E and Figure S2C–E). The gene discussed is ANXA5; the disease is gastric cancer.