PMID- 30203710 OWN - NLM STAT- MEDLINE DCOM- 20190208 LR - 20201229 IS - 1536-0121 (Electronic) IS - 1535-3508 (Print) IS - 1535-3508 (Linking) VI - 17 DP - 2018 Jan-Dec TI - The Molecular Imaging of Natural Killer Cells. PG - 1536012118794816 LID - 10.1177/1536012118794816 [doi] LID - 1536012118794816 AB - The recent success of autologous T cell-based therapies in hematological malignancies has spurred interest in applying similar immunotherapy strategies to the treatment of solid tumors. Identified nearly 4 decades ago, natural killer (NK) cells represent an arguably better cell type for immunotherapy development. Natural killer cells are cytotoxic lymphocytes that mediate the direct killing of transformed cells with reduced or absent major histocompatibility complex (MHC) and are the effector cells in antibody-dependent cell-mediated cytotoxicity. Unlike T cells, they do not require human leukocyte antigen (HLA) matching allowing for the adoptive transfer of allogeneic NK cells in the clinic. The development of NK cell-based therapies for solid tumors is complicated by the presence of an immunosuppressive tumor microenvironment that can potentially disarm NK cells rendering them inactive. The molecular imaging of NK cells in vivo will be crucial for the development of new therapies allowing for the immediate assessment of therapeutic response and off-target effects. A number of groups have investigated methods for detecting NK cells by optical, nuclear, and magnetic resonance imaging. In this review, we will provide an overview of the advances made in imaging NK cells in both preclinical and clinical studies. FAU - Shapovalova, Mariya AU - Shapovalova M AD - 1 Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN, USA. FAU - Pyper, Sean R AU - Pyper SR AD - 2 Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA. FAU - Moriarity, Branden S AU - Moriarity BS AD - 2 Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA. FAU - LeBeau, Aaron M AU - LeBeau AM AD - 1 Department of Pharmacology, University of Minnesota Medical School, Minneapolis, MN, USA. LA - eng GR - R21 CA216652/CA/NCI NIH HHS/United States PT - Journal Article PT - Review PL - England TA - Mol Imaging JT - Molecular imaging JID - 101120118 SB - IM MH - Humans MH - Intravital Microscopy MH - Killer Cells, Natural/*cytology MH - Luminescent Measurements MH - Magnetic Resonance Imaging MH - *Molecular Imaging PMC - PMC6134484 OTO - NOTNLM OT - cancer imaging OT - cell tracking OT - cellular imaging and trafficking OT - molecular imaging of immune cell therapies COIS- Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2018/09/12 06:00 MHDA- 2019/02/09 06:00 PMCR- 2018/09/11 CRDT- 2018/09/12 06:00 PHST- 2018/09/12 06:00 [entrez] PHST- 2018/09/12 06:00 [pubmed] PHST- 2019/02/09 06:00 [medline] PHST- 2018/09/11 00:00 [pmc-release] AID - 10.1177_1536012118794816 [pii] AID - 10.1177/1536012118794816 [doi] PST - ppublish SO - Mol Imaging. 2018 Jan-Dec;17:1536012118794816. doi: 10.1177/1536012118794816.