passages.id: split_4_validation_342_passage
passages.type: progene_text
passages.text: In the present study , we analyze the modulatory effect of IL-2 alone or a combination of IL-12 with IL-18 on surface expression of killer cell immunoglobulin - like receptors KIR2DL1 , KIR2DL2 , and KIR3DL2 in NK cells .