%0 Journal Article %T Cytokines drive the formation of memory-like NK cell subsets via epigenetic rewiring and transcriptional regulation. %A Foltz JA %A Tran J %A Wong P %A Fan C %A Schmidt E %A Fisk B %A Becker-Hapak M %A Russler-Germain DA %A Johnson J %A Marin ND %A Cubitt CC %A Pence P %A Rueve J %A Pureti S %A Hwang K %A Gao F %A Zhou AY %A Foster M %A Schappe T %A Marsala L %A Berrien-Elliott MM %A Cashen AF %A Bednarski JJ %A Fertig E %A Griffith OL %A Griffith M %A Wang T %A Petti AA %A Fehniger TA %J Sci Immunol %V 9 %N 96 %D 2024 Jun 28 %M 38941480 %F 30.63 %R 10.1126/sciimmunol.adk4893 %X Activation of natural killer (NK) cells with the cytokines interleukin-12 (IL-12), IL-15, and IL-18 induces their differentiation into memory-like (ML) NK cells; however, the underlying epigenetic and transcriptional mechanisms are unclear. By combining ATAC-seq, CITE-seq, and functional analyses, we discovered that IL-12/15/18 activation results in two main human NK fates: reprogramming into enriched memory-like (eML) NK cells or priming into effector conventional NK (effcNK) cells. eML NK cells had distinct transcriptional and epigenetic profiles and enhanced function, whereas effcNK cells resembled cytokine-primed cNK cells. Two transcriptionally discrete subsets of eML NK cells were also identified, eML-1 and eML-2, primarily arising from CD56bright or CD56dim mature NK cell subsets, respectively. Furthermore, these eML subsets were evident weeks after transfer of IL-12/15/18-activated NK cells into patients with cancer. Our findings demonstrate that NK cell activation with IL-12/15/18 results in previously unappreciated diverse cellular fates and identifies new strategies to enhance NK therapies.