PMID: 15387909Sep 25, 2004Paper

The experimental study on the expression of toll-like receptor 2 in fulminant hepatic failure

Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology
Chun-Gen YanQing Guo

Abstract

In order to explore the role of toll-like receptors 2 (TLR2) in initiating inflammatory response, the expression of TLR2 of the liver and IL-18, TNF-alpha and IFN-gamma of plasma in fulminant hepatic failure was analysed. D-galactosamine (D-Gal, 900 mg/kg) and lipopolysaccharide (LPS, 10 microg/kg) were administered intraperitoneally into the BALB/C mice. To evaluate the hepatic injury, serum transaminase (ALT and AST) and plasma IL-18, TNF-alpha and IFN-gamma were determined and the mortality was observed at various time points following the intraperitoneal injection. The level of TLR2 mRNA was measured by semiquantitative RT-PCR. The protein expression of TLR2 in the liver was detected by immunohistochemistry. The data was analyzed by SAS software. After 4 hours of intraperitoneal injection of D-Gal/LPS, the serum transaminase and plasma IL-18, TNF-alpha and IFN-gamma levels were elevated. The treated mice began to die at 7 hours. The mortality reached up to 80% at 10 h. TLR2 mRNA was expressed at a low level in liver tissues of normal mice, while it was significantly increased and maintained at a higher level following intraperitoneal injection with D-Gal/LPS. The expression of TLR2 protein was similar to that of the TLR2 mR...Continue Reading

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