in contrast to lps-responsive macrophage , rifn-gamma-primed c3h/hej ( lpsd ) macrophages fail to become cytolytic in response to protein-free , phenol-water-extracted lps preparations , but become tumoricidal when exposed in vitro to protein-rich butanol-extracted lps or purified lipid a-associated proteins .
C0023810
lps
C0023767
lipid a