Apoptotic cell death in the response of D-galactosamine-sensitized mice to lipopolysaccharide as an experimental endotoxic shock model.
AUTOR(ES)
Morikawa,, A
RESUMO
The apoptotic cell death induced in D-galactosamine-sensitized mice by administration of lipopolysaccharide was characterized. Administration of lipopolysaccharide caused apoptotic cell death in livers of D-galactosamine-sensitized mice. Apoptotic cells were also detected in the kidney, thymus, spleen, and lymph node. Severe hepatic apoptosis in D-galactosamine-sensitized mice was reproduced by transfer of the sera from mice injected with D-galactosamine and lipopolysaccharide. The hepatocyte apoptosis induced by lipopolysaccharide was completely prevented by an anti-tumor necrosis factor alpha antibody but not by an anti-gamma interferon antibody. Administration of recombinant tumor necrosis factor into D-galactosamine-sensitized mice also caused hepatocyte apoptosis. Lipopolysaccharide-induced hepatocyte apoptosis in D-galactosamine-sensitized mice did not seem to be mediated by Fas antigen. It was suggested that lipopolysaccharide- induced hepatic injury and failure in D-galactosamine-sensitized mice was due to the apoptotic cell death of hepatocytes caused by tumor necrosis factor alpha released in the circulation.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=173830Documentos Relacionados
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