PMID- 35965181 OWN - NLM STAT- MEDLINE DCOM- 20220915 LR - 20220915 IS - 1879-1166 (Electronic) IS - 0198-8859 (Linking) VI - 83 IP - 10 DP - 2022 Oct TI - Donor selection based on NK alloreactivity for patients with hematological malignancies. PG - 695-703 LID - S0198-8859(22)00141-0 [pii] LID - 10.1016/j.humimm.2022.07.006 [doi] AB - Natural killer (NK) cells are an important defender against infections and tumors. Their function is regulated by the balance of inhibitory and activating receptors. Among all inhibitory NK receptors: killer immunoglobulin-like receptors (KIR) and CD94/NKG2A recognize human leukocyte antigen (HLA) Class I molecules, allowing NK cells to be 'licensed' to avoid autoreactivity, but be fully functional at the same time. Licensed NK cells can target malignant cells with altered or downregulated/missing 'self' antigens. NK cell attacking malignant cells is one of the mechanisms of graft-versus-leukemia (GVL) effect. Numerous studies have demonstrated that NK cells improve hematopoietic stem cell transplantation (HCT) survival by reducing relapse mortality through GVL effect. Therapeutic strategies, such as adoptive alloreactive NK cell transfer, CAR-NK cells, antibodies against NKG2A and KIR2DL1-3, have been utilized to treat hematological malignancies in HCT. In this review, NK cell functions, NK cell receptors and ligands, as well as common alloreactive NK donor selection algorithms for patients with hematological malignancies in the setting of HCT are discussed. The goal of this review is to provide insights on the controversial results and provide better understanding and resources on how to perform alloreactive donor NK cell selection in HCT. CI - Copyright (c) 2022 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved. FAU - Jennifer Zhang, Qiuheng AU - Jennifer Zhang Q AD - UCLA Immunogenetics Center, Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles 90095, USA. Electronic address: jqzhang@mednet.ucla.edu. LA - eng PT - Journal Article PT - Review DEP - 20220811 PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (Receptors, KIR) SB - IM MH - Donor Selection MH - *Hematologic Neoplasms/therapy MH - *Hematopoietic Stem Cell Transplantation/methods MH - Humans MH - Killer Cells, Natural MH - Receptors, KIR/genetics OTO - NOTNLM OT - GVHD OT - GVL OT - Hematopoietic stem cell transplant OT - KIR OT - Natural killer cell COIS- Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/08/15 06:00 MHDA- 2022/09/16 06:00 CRDT- 2022/08/14 22:05 PHST- 2022/05/31 00:00 [received] PHST- 2022/07/12 00:00 [revised] PHST- 2022/07/26 00:00 [accepted] PHST- 2022/08/15 06:00 [pubmed] PHST- 2022/09/16 06:00 [medline] PHST- 2022/08/14 22:05 [entrez] AID - S0198-8859(22)00141-0 [pii] AID - 10.1016/j.humimm.2022.07.006 [doi] PST - ppublish SO - Hum Immunol. 2022 Oct;83(10):695-703. doi: 10.1016/j.humimm.2022.07.006. Epub 2022 Aug 11.