Tumor suppression using placental perfusate and intermediary human natural killer cells derived from human placenta

human nucleated cells placental perfusate for use in a method for treating a tumor in an individual, wherein human nucleated cells placental perfusate comprise natural killer cells intermediate placental CD56 +, CD16 and are capable of being obtained by perfusion of a human placenta be has been drained from the umbilical cord and rinsed to remove residual blood to produce placental perfusate comprising nucleated placental cells; and isolating nucleated cells from placental perfusate said placental.