STC2 and cholangiocarcinoma: In addition to the above-mentioned tumours, STC2 is also upregulated in other tumours like nasopharyngeal carcinoma, HNSCC, HCC, osteosarcoma, ovarian cancer, lung cancer, pancreatic cancer, endometrial cancer, cervical cancer, neuroblastoma, gallbladder cancer and cholangiocarcinoma as listed in Table 1.