[The significance of anti-nuclear envelope (gp210) antibody in primary biliary cirrhosis].
Primary biliary cirrhosis (PBC) is considered to be an autoimmune disease selectively targeted for interlobular bile ducts. While anti-mitochondrial antibodies are specifically detected in more than 90% of PBC patients, anti-nuclear envelope-gp210 antibodies are also specifically detected in 20-30% of PBC patients. In this review, we present 1, T cells specific for mitochondrial major epitope, PDC-E2 163-176, cross-react with peptides derived from nuclear envelope-gp210 protein, 2, PBC patients who have sustained high antibody titers to gp210 are at high risk for the progression to end-stage hepatic failure. These evidences may be very important for the epitope spreading of autoantigens from PDC-E2 to nuclear antigens and for the identification of target antigens on biliary epithelial cells which are recognized by cytotoxic T cells in PBC.
Clinical Research Center, NHO Nagasaki Medical Center and Department of Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Minoru
M
Nakamura
D001323:Autoantibodies / Q000097:blood*; D006801:Humans; D008105:Liver Cirrhosis, Biliary / Q000276:immunology*; D008562:Membrane Glycoproteins / Q000276:immunology*; D028861:Nuclear Pore Complex Proteins; D009687:Nuclear Proteins / Q000276:immunology*
D001323:Autoantibodies; D008562:Membrane Glycoproteins; C063865:NUP210 protein, human; D028861:Nuclear Pore Complex Proteins; D009687:Nuclear Proteins