passages.id: split_1_test_2831_passage
passages.type: progene_text
passages.text: The LILR transgenes were expressed in a similar , but not identical , pattern to that observed in humans : LILRB1 was expressed in B cells , most NK cells , and a small number of T cells ; LILRB4 was expressed in a B cell subset ; and LILRA1 was found on a ring of cells surrounding B cell areas on spleen sections , consistent with other data showing monocyte / macrophage expression .