thioglycolate-elicited peritoneal exudate macrophages from c3h/hej mice were rendered cytolytic for p815 mastocytoma cells in a two-signal tumoricidal assay that used recombinant interferon-gamma ( rifn-gamma ; 1 to 10 u/ml ) as a `` '' priming '' '' signal and butanol-extracted lipopolysaccharide ( but-lps ; 0.1 to 5 micrograms/ml ) as a `` '' trigger '' '' signal .
C1536403
cytolytic
C0007634
cells