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Respiratory syncytial virus (RSV) is a leading cause of infant mortality, and there are currently no licensed vaccines to protect this vulnerable population. A comprehensive understanding of infant antibody responses to natural RSV infection would facilitate vaccine development. Here, we isolated more than 450 RSV fusion glycoprotein (F)-specific antibodies from 7 RSV-infected infants and found that...
Non-alcoholic fatty liver disease is associated with hepatocellular carcinoma. In the March 10 issue of Nature, Greten and colleagues report that this metabolic disruption affects tumor surveillance by depleting CD4+ T helper cells through lipotoxic mechanisms associated with NAFLD.
In this issue of Immunity, Miller et al. (2008) use multiple independent techniques to demonstrate that antiviral T cell responses after acute human infection are much larger than previously realized.
CD8 + cytotoxic T lymphocytes (CTL) are thought to control hepatitis C virus (HCV) replication and so we investigated why this response fails in persistently infected individuals. The HCV quasispecies in three persistently infected chimpanzees acquired mutations in multiple epitopes that impaired class I MHC binding and/or CTL recognition. Most escape mutations appeared during acute infection...
To investigate the type of immunity responsible for resolution of hepatitis C virus (HCV) infection, we monitored antibody and intrahepatic cytotoxic T lymphocyte (CTL) responses during acute (<20 weeks) infection in chimpanzees. Two animals who terminated infection made strong CTL but poor antibody responses. In both resolvers, CTL targeted at least six viral regions. In contrast, animals developing...
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