LncRNA-KRTAP5-AS1 and lncRNA-TUBB2A can function as ceRNAs that bind miR-596 and miR-3620-3p and regulate Claudin-4 to promote the growth, metastasis, and epithelial-mesenchymal transition (EMT) of gastric cancer (26). The gene discussed is CLDN4; the disease is gastric cancer.