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Metabolomics Identifies an Inflammatory Cascade Involved in Dioxin- and Diet-Induced Steatohepatitis
被引:74
作者:
Matsubara, Tsutomu
[1
]
Tanaka, Naoki
[1
]
Krausz, Kristopher W.
[1
]
Manna, Soumen K.
[1
]
Kang, Dong Wook
[2
]
Anderson, Erik R.
[3
]
Luecke, Hans
[2
]
Patterson, Andrew D.
[1
]
Shah, Yatrik M.
[3
]
Gonzalez, Frank J.
[1
]
机构:
[1] NCI, Lab Metab, Ctr Canc Res, NIH, Bethesda, MD 20892 USA
[2] NIDDKD, Bioorgan Chem Lab, NIH, Bethesda, MD 20892 USA
[3] Univ Michigan, Dept Mol & Integrat Physiol & Internal Med, Div Gastroenterol, Sch Med, Ann Arbor, MI 48109 USA
关键词:
ARYL-HYDROCARBON RECEPTOR;
2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN TCDD;
DEFICIENT MICE;
DBA/2J MICE;
INDUCTION;
TOXICITY;
TERATOGENESIS;
DISRUPTION;
MICROARRAY;
EXPRESSION;
D O I:
10.1016/j.cmet.2012.10.006
中图分类号:
Q2 [细胞生物学];
学科分类号:
071009 ;
090102 ;
摘要:
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is among the most potent environmentally toxic compounds. Serum metabolomics identified azelaic acid monoesters as significantly increased metabolites after TCDD treatment, due to downregulation of hepatic carboxylesterase 3 (CES3, also known as triglyceride hydrolase) expression in an arylhydrocarbon receptor (AhR)-dependent manner in mice. The decreased CES3 expression was accomplished by TODD-stimulated TGF beta-SMAD3 and IL6-STAT3 signaling, but not by direct AhR signaling. Methionine- and choline-deficient (MCD) diet-treated mice also showed enhanced serum azelaic acid monoester levels after attenuation of hepatic CES3 expression, while db/db mice did not, thus suggesting an association with steatohepatitis. Forced expression of CES3 reversed serum azelaic acid monoester/azelaic acid ratios and hepatic TGF beta mRNA levels in TCDD- and MCD diet-treated mice and ameliorated steatohepatitis induced by MCD diet. These results support the view that azelaic acid monoesters are possible indicators of TCDD exposure and steatohepatitis and suggest a link between CES3, TGF beta, and steatohepatitis.
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页码:634 / 644
页数:11
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