THE DECREASE OF PKCα IS ASSOCIATED WITH HEPATIC APOPTOSIS AT EARLY AND LATE PHASES OF POLYMICROBIAL SEPSIS

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Abstract
The present study investigates the relationship between the PKC-α and hepatic apoptosis during sepsis. Cecal ligation and puncture- (CLP) induced animal model of polymicrobial sepsis was used, with early and late sepsis referring to those animals sacrificed at 9 and 18 h, respectively, after CLP. The expressions of PKCα and Bcl-2 family proteins as well as poly(ADP-ribose) polymerase (PARP) cleavage were quantified to evaluate the possible factors involved in the hepatic cell death during sepsis. The apoptosis of hepatocytes under septic condition or hepatocytes treated with PKCα antisense was evaluated by gel electrophoresis and/or flow cytometry after Annexin-V-Fluos and propidium iodide staining. The results indicated that (1) the protein expression of membrane-associated PKCα was decreased at early (P

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