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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

In vivo regulation of inducible no synthase in immune-mediated liver injury in mice.

Inducible nitric oxide synthase (iNOS) has been shown to play an important role in the development of liver injury. iNOS deficiency protects mice from hemorrhage/resuscitation as well as from cytokine-mediated liver injury, for example, after administration of concanavalin A (con A). Here we investigated the in vivo effects of tumor necrosis factor (TNF)-alpha and/or interferon (IFN)-gamma, two mediators of con A-induced liver injury, the TNF receptor (TNFR) usage leading to iNOS expression, and its connection with nuclear factor kappaB (NF-kappaB) activation. In conclusion, iNOS expression in vivo is dependent on both TNF-alpha and IFN-gamma. Although con A-induced liver injury depends on both TNFR1 and TNFR2, TNF-dependent iNOS expression is mediated exclusively by TNFR1 and requires NF-kappaB activation.[1]


  1. In vivo regulation of inducible no synthase in immune-mediated liver injury in mice. Koerber, K., Sass, G., Kiemer, A.K., Vollmar, A.M., Tiegs, G. Hepatology (2002) [Pubmed]
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