RT Journal Article T1 Trans-endocytosis of intact IL-15Rα–IL-15 complex from presenting cells into NK cells favors signaling for proliferation A1 Antón Hurtado, Olga María A1 Peterson, Mary A1 Hollander, Michael A1 Dorward, David A1 Arora, Gunjan A1 Traba, Javier A1 Rajagopalan, Sumati A1 Snapp, Erik A1 Garcia, Christopher A1 Waldmann, Thomas A1 Long, Eric AB Interleukin 15 (IL-15) is essential for natural killer (NK) cell survival and proliferation. The IL-15 receptor consists of 3 subunits: the α chain and the β and common γ chains, which are shared with the IL-2 receptor. NK cells express the β-γchains and are activated in trans by cells presenting IL-15 bound to IL-15Rα, such as dendritic cells. We show here that the release of soluble IL-15Rα–IL-15 complex from presenting cells contributes to efficient signaling for NK cell survival, whereas uptake of the entire membrane-associated-IL-15Rα–IL-15 complex from presenting cells into NK cells contributes to proliferation. Thus, outcomes are dictated not only by signal strength, but also by location where IL-15 trans-presentation occurs in NK cells. PB National Academy of Sciences SN 0027-8424 YR 2019 FD 2019 LK https://hdl.handle.net/20.500.14352/96970 UL https://hdl.handle.net/20.500.14352/96970 LA eng NO Anton, Olga M., et al. «Trans -Endocytosis of Intact IL-15Rα–IL-15 Complex from Presenting Cells into NK Cells Favors Signaling for Proliferation». Proceedings of the National Academy of Sciences, vol. 117, n.o 1, enero de 2020, pp. 522-31. https://doi.org/10.1073/pnas.1911678117. NO National Institute of Health (USA) NO National Institute of Allergy and Infectious Diseases (USA) NO National Cancer Institute (USA) DS Docta Complutense RD 18 abr 2025