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We have previously shown that interferon and tumor necrosis factor noncytopathically abolish hepatitis B virus (HBV) replication from the hepatocyte and kidney tubular epithelial cells in vivo. Here we show that a persistent lymphocytic choriomeningitis virus (LCMV) infection is cleared from the hepatocyte noncytopathically when the same cytokines are induced in the liver by antigen-nonspecific stimuli. These results indicate that, like HBV, LCMV is also susceptible to intracellular inactivation by cytokine-induced antiviral mechanisms that are operative in the hepatocyte. In contrast, LCMV is not cleared from intrahepatic nonparenchymal cells or splenocytes, indicating that, unlike the hepatocyte, these cells do not produce the factors required to inactivate LCMV. Antiviral mechanisms like these may have evolved to maintain the functional integrity of vital organs in the face of massive infection.

Type

Journal article

Journal

J Exp Med

Publication Date

17/05/1999

Volume

189

Pages

1555 - 1564

Keywords

Adenoviridae, Alanine Transaminase, Animals, Antigens, CD, Cytokines, Gene Expression, Interferons, Interleukins, Kidney Tubules, Liver, Lymphocytic Choriomeningitis, Lymphocytic choriomeningitis virus, Mice, Mice, Inbred BALB C, Mice, Inbred C57BL, RNA, Viral, Spleen, T-Lymphocytes, Tumor Necrosis Factor-alpha, Viral Proteins