passages.id: split_5_test_2115_passage
passages.type: progene_text
passages.text: Our results show that CD56 + hi NK - cells display greater light - scatter properties than CD56 + lo NK - cells at the same time they have higher levels of CD25 and CD122 IL-2 chains , together with a higher reactivity for HLA-DR and CD45RO and lower levels of CD45RA , supporting that , as opposed to the majority of the CD56 + lo population , CD56 + hi NK-cells might correspond to a subset of activated circulating NK-lymphocytes .