SNHG15 and colorectal cancer: Well-characterized lncRNAs induced by TCDD in both pericentral and periportal hepatocytes include Snhg15 (lnc9442*), whose increased expression has been linked to liver metastasis and poor overall survival in colorectal cancer 45, and Lrrc75-as1 (lnc9790*), which inhibits cell proliferation and migration in colorectal cancer 46.