VTCN1 and esophageal squamous cell carcinoma: In addition, B7-H4 may be involved in CSC or epithelial-to-mesenchymal transition (EMT)-related pathways based on the results of studies in various cancers, including esophageal squamous cell carcinoma, colorectal cancer, intrahepatic cholangiocarcinoma, and bladder cancer [24–27].