Apoptosis marker TUNEL staining of subcutaneous xenografts displayed that ZNF205‐AS1 or EGR4 knockdown both promoted cell apoptosis of subcutaneous tumours, and concurrent knockdown of ZNF205‐AS1 and EGR4 more significantly promoted cell apoptosis of subcutaneous tumours (Figure 7F). The gene discussed is EGR4; the disease is neoplasm.