passages.id: split_4_test_2730_passage
passages.type: progene_text
passages.text: The expression of CD94 and the KIR isotypes CD158a , CD158b and KIR3DL1 by CD56 ( + ) T cells and NK cells was significantly and consistently reduced in tumour - bearing livers compared to healthy livers ( P < 0.05 in all cases ) .