Non-organ specific autoantibodies associated with chronic C virus hepatitis.

Abstract:

:Recently antibodies to hepatitis C virus were detected in sera of chronic active hepatitis patients, with anti-smooth muscle autoantibodies or with anti-liver/kidney microsomal type 1 autoantibodies. As the latter were used to differentiate autoimmune chronic active hepatitis from chronic non-A, non-B virus hepatitis, it was mainly important to discover if autoantibodies were associated with chronic hepatitis C virus infection. The sera of 272 chronic hepatitis C patients were screened by indirect immunofluorescence for non-organ specific autoantibodies. Antinuclear antibodies and anti-smooth muscle autoantibodies were more frequent in chronic hepatitis C patients than in blood donors (n = 100). Anti-liver/kidney microsomal type 1 autoantibodies were not detected in the sera of the blood donors, in the 74 hepatitis B patients or in the 30 alcoholic hepatitis or cirrhotic patients' sera tested as controls. They were detected in 14 chronic hepatitis C patients. These antibodies were compared in immunodiffusion to anti-liver/kidney microsomal type 1 autoantibodies sera obtained from type-2 autoimmune chronic active hepatitis patients and an identity reaction was observed. Chronic hepatitis C patients without or with anti-liver/kidney microsomal type 1 autoantibodies, did not differ in age, sex ratio, transaminases and gammaglobulin level, risk factors for hepatitis C virus infection, association with other autoimmune diseases. These patients differed significantly from type-2 autoimmune chronic active hepatitis patients. We conclude that: (i) in some chronic hepatitis C patients the pattern and the titer of autoantibodies may create confusion with an autoimmune chronic active hepatitis; (ii) There is no serological evidence for a hepatitis C virus infection in true type-2 autoimmune chronic active hepatitis.

journal_name

J Hepatol

journal_title

Journal of hepatology

authors

Abuaf N,Lunel F,Giral P,Borotto E,Laperche S,Poupon R,Opolon P,Huraux JM,Homberg JC

doi

10.1016/s0168-8278(05)80281-8

subject

Has Abstract

pub_date

1993-07-01 00:00:00

pages

359-64

issue

3

eissn

0168-8278

issn

1600-0641

pii

S0168-8278(05)80281-8

journal_volume

18

pub_type

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