[Cell mediated cytolysis: identification, enumeration and characterization of killer cells].

Killer cells responsible of the cell mediated cytolysis are identified by a microtechnique: effector cells are individually associated to target cells and incubated at 37 degrees C; killers are identified by their associated target lysis. Thus killer cells are enumerated in the effector cell suspensions. Furthermore, isolated killer can be characterized and their lethal action studied.