For instance, Hu et al pointed out that ST7-AS1 accelerates lung adenocarcinoma metastasis by targeting the miR-181b-5p/KPNA4 axis.9 Its oncogenic role has also been emphasized in cervical and gastric cancers.10 However, no studies have yet examined ST7-AS1’s role in esophageal cancer. This evidence concerns the gene ST7 and lung adenocarcinoma.