In vitro stimulation of macrophages by quadrol [N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine].

Mouse peritoneal macrophages, when exposed to Quadrol [N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine] in vitro, show a dose dependent enhanced spreading over a four-hour period. In vitro Quadrol induced phagocytosis of polystyrene beads was found to be time and concentration dependent. The rate and extent of the enhancement of phagocytosis was comparable to that observed for lipopolysaccharide and tuftsin.