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  • Title: Clinical evaluation of autoantibodies to liver cell membrane specific antigen, liver specific lipoprotein, and Tamm-Horsfall glycoprotein in autoimmune chronic active hepatitis.
    Author: Morichika S, Arima T, Nagashima H.
    Journal: Gastroenterol Jpn; 1987 Feb; 22(1):24-33. PubMed ID: 3569752.
    Abstract:
    An enzyme-linked immunosorbent assay was developed to detect circulating autoantibodies to three liver cell membrane surface antigens, i.e., liver cell membrane specific antigen (LCM), liver specific lipoprotein (LSP), and Tamm-Horsfall glycoprotein (THGP). In autoimmune chronic active hepatitis (autoimmune CAH), the positive rate and mean titer (normal range, less than 5.5 units) for anti-LCM were 100% and 13.5 units before corticosteroid treatment and 100% and 9.9 units during the treatment. The corresponding values for anti-LSP were 84% and 11.8 units, and 81% and 8.9 units, and those for anti-THGP were 84% and 12.3 units, and 81% and 7.9 units. In an autoimmune CAH patient, elevation of the plasma levels of autoantibodies during the treatment apparently preceded the elevation of alanine aminotransferase (ALT). However, the ALT elevation induced by transcatheter arterial embolization was not associated with the elevation of these autoantibodies in an autoimmune CAH patient with hepatocellular carcinoma. In primary biliary cirrhosis, drug-induced hepatitis, and non-hepatic immunological disorders, the production of the three autoantibodies did not directly correlate with liver cell damage. These findings suggest that the elevation of autoantibodies against LCM, LSP, and THGP can be a useful guide for the prednisolone treatment of autoimmune CAH.
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