Abstract:
:Mitochondrial antigens were purified from rat liver and characterized by immunoblotting. Sera from 19 well defined patients with primary biliary cirrhosis (PBC) reacted with two mitochondrial polypeptides of 68 Kd and 45 Kd. Antibodies to these antigens were not detected in any of the sera of patients with cirrhosis of the liver, chronic active hepatitis or other autoimmune diseases. The two polypeptides were derived from the soluble fraction of the mitochondrial matrix. An enzyme-linked immunosorbent assay (ELISA) employing these rat liver mitochondrial antigens is described. Positive results were obtained with all except one PBC sera (95%), five out of 47 patients with cirrhosis (11%), one out of 20 patients with chronic active hepatitis (5%), and two out of 19 patients with various autoimmune disorders (11%). The titers detected in PBC were markedly higher than those recorded in patients with other liver and autoimmune diseases. Strong correlation was found between immunoblotting and the ELISA in determining antimitochondrial antibodies. The ELISA presented is easily performed and seems to be a useful diagnostic tool for antimitochondrial antibodies in patients with PBC.
journal_name
Autoimmunityjournal_title
Autoimmunityauthors
Zurgil N,Konikoff F,Bakimer R,Slor H,Shoenfeld Ydoi
10.3109/08916938909014705subject
Has Abstractpub_date
1989-01-01 00:00:00pages
289-97issue
4eissn
0891-6934issn
1607-842Xjournal_volume
4pub_type
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