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Toll-Like Receptors In Liver Disease, Jan Petrasek, Timea Csak, Gyongyi Szabo
Toll-Like Receptors In Liver Disease, Jan Petrasek, Timea Csak, Gyongyi Szabo
Gyongyi Szabo
Activation of inflammatory signaling pathways is of central importance in the pathogenesis of alcoholic liver disease (ALD) and nonalcoholic steatohepatitis (NASH). Recent studies demonstrated that Toll-like receptors, the sensors of microbial and endogenous danger signals, are expressed and activated in innate immune cells as well as in parenchymal cells in the liver and thereby contribute to ALD and NASH. In this review, we emphasize the importance of gut-derived endotoxin and its recognition by TLR4 in the liver. The significance of TLR-induced intracellular signaling pathways and cytokine production as well as the contribution of individual cell types to the inflammation is …