Persistent measles virus genome in autoimmune chronic active hepatitis: Cause or coincidence?

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Abstract
A radiolabelled 50-base oligonucleotide complementary with the measles virus gene encoding the nucleocapsid was used as a probe to identify persistent measles virus genome in the lymphocytes from patients with autoimmune chronic active hepatitis (AICAH). Positive hybrids were found in 12 of 18 patients, and correlated strongly with high antibody titers to measles. Among the 45 controls, positive hybrids were found in one patient with measles, 1 of 3 patients with lupus erythematosis and 2 of 4 patients with cryptogenic cirrhosis. Persistence of part of the measles virus genome in AICAH may have important implications in the pathogenesis of the liver disease, and possibly in other disorders such as systemic lupus erythematosis, multiple sclerosis and Paget’s disease where an abnormal immune response to measles has been observed.