Abstract：
:Drug-induced liver injury (DILI) is a major safety concern in drug development and clinical drug therapy. The pathogenesis of DILI usually involves the participation of the parent drug or metabolites that either directly affect the cell biochemistry or elicit an immune response. However, in most cases the mechanisms are unknown. Alpha-naphthylisothiocyanate (ANIT) is known as a hepatotoxicant that causes biliary cell and hepatocyte damage and induces intense neutrophil infiltration in the liver. To investigate whether an immune-mediated mechanism is involved in ANIT-induced liver injury, we examined the plasma AST, ALT and T-Bil levels, hepatic expression of transcriptional factors, cytokines and CXC chemokine genes, plasma IL-17 level and histopathological changes in liver after ANIT administration in mice. Hepatic mRNA expression of retinoid related orphan receptor gamma t (ROR gamma t) and macrophage inflammatory protein (MIP-2) and plasma IL-17 level was significantly increased in ANIT-administered mice as well as the plasma AST, ALT and T-Bil. Neutralization of IL-17 using anti-IL-17 antibody (100 microg/mouse, single i.p.) suppressed the hepatotoxic effect of ANIT. Co-administration of recombinant IL-17 (1 microg/mouse, single i.p.) to ANIT-administered mice resulted in a remarkable increase of the plasma AST, ALT and T-Bil levels. In conclusion, it was firstly demonstrated that IL-17 is involved in the ANIT-induced liver injury in mice.
journal_name
Toxicologyjournal_title
Toxicologyauthors
Kobayashi M,Higuchi S,Mizuno K,Tsuneyama K,Fukami T,Nakajima M,Yokoi Tdoi
10.1016/j.tox.2010.05.011subject
Has Abstractpub_date
2010-09-10 00:00:00pages
50-7issue
1-3eissn
0300-483Xissn
1879-3185pii
S0300-483X(10)00243-Xjournal_volume
275pub_type
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