Abstract
To investigate the interaction between the peripheral nervous and the immune system in vivo, we used two mouse models of T cell and TNF-α dependent liver injury inducible by either concanavalin A or a combination of d-galactosamine and staphylococcal enterotoxin B. Mice depleted of peptidergic sensory nerve fibres by capsaicin were protected from liver injury. Moreover, TNF-α production was significantly reduced. Examination of the effect of catecholamines on liver injury showed that the β 2-adrenergic agonist salbutamol prevented, whereas chemical sympathectomy by 6-hydroxydopamine, deteriorated the disease. Hence, strategies reducing the activity of peptidergic sensory nerve fibres or stimulating β 2-adrenoreceptors, may be of benefit in immune-mediated liver disease.
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