although some data suggest that macrophages in the reticuloendothelial system ( res ) are important sources of thromboxane a2 ( txa2 ) and prostacyclin ( pgi2 ) during endotoxic shock , we are unaware of data documenting the ability of hepatic macrophages ( kupffer cells ) to release either txa2 or pgi2 when exposed to lipopolysaccharide ( endotoxin , lps ) .
C0014264
endotoxin
C0023810
lps