Acute liver injury attenuation of a novel recombinant sTNFR through blocking hepatic apoptosis.
2015
AbstractContext: Tumor necrosis factor (TNF) α plays a key role in acute liver injury (ALI) induced by injection of d-galactosamine (D-Gal)/lipopolysaccharide (LPS). A novel recombinant trimeric sTNFRII, sTNFRII-gAD, has been tested to be effective in ameliorating ALI, when administered prior to ALI establishment. This study aims to validate the protective effect of sTNFRII-gAD when given after ALI setup and further explore its effect on hepatic apoptosis.Materials and methods: The treatments were carried out concomitantly with ALI establishment with clinically approved sTNFRII-Fc (the dimeric sTNFRII) as a positive control. Lethality, liver weight, and serum alanine transaminase were measured, and histological analysis was performed to evaluate liver injury induced by D-Gal/LPS. Additionally, Terminal-deoxynucleoitidyl transferase-mediated nick end labeling (TUNEL) and Western blot analyses of caspase-3 were used to examine hepatocellular apoptosis.Results: sTNFRII-gAD given after D-Gal/LPS injection tur...
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