The capability of activated macrophages to kill tumor cells in vitro is now well documented.
The tumoricidal activation of macrophages against intestinal tumor cells by different agents
is described and the main hypothesis on the mechanisms of tumor cell killing in vitro are
discussed. These in vitro results suggest that the macrophage can constitute an efficient
effector cell in the defense against intestinal tumors. The distribution and ratio of
macrophages in normal intestine and intestinal tumors is described. At the moment, potent …