PMID- 24618042 OWN - NLM STAT- MEDLINE DCOM- 20141126 LR - 20211021 IS - 1096-3618 (Electronic) IS - 1044-5323 (Print) IS - 1044-5323 (Linking) VI - 26 IP - 2 DP - 2014 Apr TI - Clinical utility of natural killer cells in cancer therapy and transplantation. PG - 161-72 LID - S1044-5323(14)00015-3 [pii] LID - 10.1016/j.smim.2014.02.002 [doi] AB - Natural killer (NK) cells recognize deranged cells that display stress receptors or loss of major histocompatibility complex (MHC) class I. During development, NK cells become "licensed" only after they encounter cognate human leukocyte antigen (HLA) class I, leading to the acquisition of effector function. NK cells can be exploited for cancer therapy in several ways. These include targeting with monoclonal antibodies alone or combined with ex vivo and in vivo NK cell activation to facilitate adoptive immunotherapy using donor-derived NK cell products to induce graft-vs-tumor effects. In the adoptive transfer setting, persistence and in vivo expansion requires lymphodepleting chemotherapy to prevent rejection and provide homeostatic cytokines (such as IL-15) that activate NK cells. IL-15 has the advantage of avoiding regulatory T-cell expansion. Clinical applications are currently being tested. To enhance in vivo expansion, IL-2 has been used at low doses. However, low dose administration also leads to the stimulation of regulatory T cells. Monoclonal antibodies and bispecific killer engagers (BiKEs) may enhance specificity by targeting CD16 on NK cells to tumor antigens. Inhibition of CD16 shedding may also promote enhanced cytotoxicity. Future strategies include exploiting favorable donor immunogenetics or ex vivo expansion of NK cells from blood, progenitors, or pluripotent cells. Comparative clinical trials are needed to test these approaches. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Knorr, David A AU - Knorr DA AD - Blood and Marrow Transplant Program, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, United States. FAU - Bachanova, Veronika AU - Bachanova V AD - Blood and Marrow Transplant Program, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, United States. FAU - Verneris, Michael R AU - Verneris MR AD - Blood and Marrow Transplant Program, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, United States; Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, United States. FAU - Miller, Jeffrey S AU - Miller JS AD - Blood and Marrow Transplant Program, Department of Medicine, University of Minnesota, Minneapolis, MN 55455, United States. Electronic address: mille001@umn.edu. LA - eng GR - KL2 TR000113/TR/NCATS NIH HHS/United States GR - P01 CA065493/CA/NCI NIH HHS/United States GR - P01 CA111412/CA/NCI NIH HHS/United States GR - UL1 TR000114/TR/NCATS NIH HHS/United States PT - Journal Article PT - Review DEP - 20140305 PL - England TA - Semin Immunol JT - Seminars in immunology JID - 9009458 SB - IM MH - Cell- and Tissue-Based Therapy/methods MH - Hematopoietic Stem Cell Transplantation MH - Humans MH - *Immunotherapy, Adoptive MH - Killer Cells, Natural/cytology/*immunology/metabolism/*transplantation MH - Neoplasms/*immunology/*therapy PMC - PMC3984606 MID - NIHMS566650 OTO - NOTNLM OT - Acute myeloid leukemia OT - Adoptive cell therapy OT - Immunomodulation OT - Immunotherapy OT - NK cells EDAT- 2014/03/13 06:00 MHDA- 2014/12/15 06:00 PMCR- 2015/04/01 CRDT- 2014/03/13 06:00 PHST- 2014/01/22 00:00 [received] PHST- 2014/01/30 00:00 [revised] PHST- 2014/02/04 00:00 [accepted] PHST- 2014/03/13 06:00 [entrez] PHST- 2014/03/13 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] PHST- 2015/04/01 00:00 [pmc-release] AID - S1044-5323(14)00015-3 [pii] AID - 10.1016/j.smim.2014.02.002 [doi] PST - ppublish SO - Semin Immunol. 2014 Apr;26(2):161-72. doi: 10.1016/j.smim.2014.02.002. Epub 2014 Mar 5.