Abstract:
:Indoleamine 2,3-dioxygenase (IDO) converts tryptophan to l-kynurenine, and it is noted as a relevant molecule in promoting tolerance and suppressing adaptive immunity. In this study, to investigate the effects of IDO in carbon tetrachloride (CCl(4) )-induced hepatitis model, the levels of IDO enzymic activities in the mock group, the control group and the 1-methyl-D-tryptophan (1-MT)-treated group were confirmed by determination of l-kynurenine concentrations. Serum alanine aminotransferase levels in 1-MT-treated rats after CCl(4) injection significantly increased compared with those in mock and control groups. In CCl(4)-induced hepatitis models, tumour necrosis factor-α (TNF-α) is critical in the development of liver injury. The mRNA expression and secretion levels of TNF-α in the liver from 1-MT-treated rats were more enhanced compared with those in the mock and the control groups. Moreover, the levels of cytokine and chemokine from mock, control group and 1-MT-treated rats after treated with CCl(4) were analyzed by ELISA, and the level of interleukin-6 was found to increase in 1-MT-treated rats. It was concluded that the deficiency of IDO exacerbated liver injury in CCl(4)-induced hepatitis and its effect may be connected with TNF-α and interleukin-6.
journal_name
Cell Biochem Functjournal_title
Cell biochemistry and functionauthors
Li D,Cai H,Hou M,Fu D,Ma Y,Luo Q,Yuan X,Lv M,Zhang X,Cong X,Lv Zdoi
10.1002/cbf.2803subject
Has Abstractpub_date
2012-06-01 00:00:00pages
309-14issue
4eissn
0263-6484issn
1099-0844journal_volume
30pub_type
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