Journal
CURRENT INFECTIOUS DISEASE REPORTS
Volume 17, Issue 2, Pages -Publisher
SPRINGER
DOI: 10.1007/s11908-014-0460-7
Keywords
Autoimmune liver disease; Primary biliary cirrhosis; Human betaretrovirus; Mouse mammary tumor virus; Viral pathogenesis; Combination antiretroviral therapy
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A human betaretrovirus resembling mouse mammary tumor virus has been characterized in patients with primary biliary cirrhosis. The agent triggers a disease-specific phenotype in vitro with aberrant cell-surface expression of mitochondrial antigens. The presentation of a usually sequestered self-protein is thought to lead to the loss of tolerance and the production of anti-mitochondrial antibodies associated with the disease. Similar observations have been made in mouse models, where mouse mammary tumor virus infection has been linked with the development of cholangitis and production of anti-mitochondrial antibodies. The use of combination antiretroviral therapy has been shown to impact on histological and biochemical disease in mouse models of autoimmune biliary disease and in clinical trials of patients with primary biliary cirrhosis. However, the HIV protease inhibitors are not well tolerated in patients with primary biliary cirrhosis, and more efficacious regimens will be required to clearly link reduction of viral load with improvement of cholangitis.
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