Frequent expression of MUC1 apomucin on biliary epithelial cells of damaged small bile ducts in primary biliary cirrhosis and chronic viral hepatitis: An immunohistochemical study
M Sasaki, Y Nakanuma – 1 June 1996 – MUC1 apomucin is a specific target tumor antigen recognized by cytotoxic T cells in a major histocompatibility complex (MHC) unrestricted fashion in patients with pancreatic and breast cancer. This T‐cell‐mediated immune mechanism against MUC1 apomucin expressing cells has not been evaluated in nonneoplastic immune‐mediated diseases. Therefore, we immunohistochemically surveyed the expression of MUC1 apomucin on biliary epithelial cells of small bile ducts in various hepatobiliary diseases, including primary biliary cirrhosis (PBC).