Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 14, Issue 21, Pages 3350-3359Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.14.3350
Keywords
autoantibody; immunogenetics; biliary epithelial cells; T cell receptor; lymphocytes
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Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease of unknown etiology but lymphocytic portal tract infiltration is suggestive of an immune-mediated basis for this disease. Associations with inflammatory bowel disease (IBD) especially ulcerative colitis (UC), and with particular autoimmune diseases, as well as the genetic associations further suggest PSC may be an immune-mediated disease. The immunogenetics of PSC have been the subject of active research and several HLA and non-HLA associated genes have been implicated in the development of the disease. Lymphocytes derived from the inflamed gut may enter the liver via the enterohepatic circulation to cause hepatic disease. PSC may be triggered in genetically susceptible individuals by infections or toxins entering the portal circulation through a permeable colon and hence evoking an abnormal immune response. (c) 2008 The WJG Press. All rights reserved.
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