To gain insight into the expression profile of HS6ST2 mRNA in cancer cells, a panel of 83 cancer cell lines from various organ sites was investigated [10, CRC; 15, gastric cancer (GC); 6, esophageal cancer (EC); 10, pancreatic cancer (PaC); 5, breast cancer (BC); 4, hepatocellular carcinoma (HCC); 3, prostate cancer (ProC); and 30, lung cancer (LC)], using qRT-PCR. The gene discussed is HS6ST2; the disease is laryngotracheoesophageal cleft.