PMID- 32983145 OWN - NLM STAT- MEDLINE DCOM- 20210422 LR - 20210422 IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 11 DP - 2020 TI - Influence of KIR and NK Cell Reconstitution in the Outcomes of Hematopoietic Stem Cell Transplantation. PG - 2022 LID - 10.3389/fimmu.2020.02022 [doi] LID - 2022 AB - Natural killer (NK) cells play a significant role in immune tolerance and immune surveillance. Killer immunoglobin-like receptors (KIRs), which recognize human leukocyte antigen (HLA) class I molecules, are particularly important for NK cell functions. Previous studies have suggested that, in the setting of hematopoietic stem cell transplantation (HSCT), alloreactive NK cells from the donor could efficiently eliminate recipient tumor cells and the residual immune cells. Subsequently, several clinical models were established to determine the optimal donors who would exhibit a graft-vs. -leukemia (GVL) effect without developing graft-vs. -host disease (GVHD). In addition, hypotheses about specific beneficial receptor-ligand pairs and KIR genes have been raised and the favorable effects of alloreactive NK cells are being investigated. Moreover, with a deeper understanding of the process of NK cell reconstitution post-HSCT, new factors involved in this process and the defects of previous models have been observed. In this review, we summarize the most relevant literatures about the impact of NK cell alloreactivity on transplant outcomes and the factors affecting NK cell reconstitution. CI - Copyright (c) 2020 Gao, Ye, Gao, Huang and Zhao. FAU - Gao, Fei AU - Gao F AD - Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. AD - Institute of Hematology, Zhejiang University, Hangzhou, China. AD - Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China. FAU - Ye, Yishan AU - Ye Y AD - Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. AD - Institute of Hematology, Zhejiang University, Hangzhou, China. AD - Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China. FAU - Gao, Yang AU - Gao Y AD - Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. AD - Institute of Hematology, Zhejiang University, Hangzhou, China. AD - Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China. FAU - Huang, He AU - Huang H AD - Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. AD - Institute of Hematology, Zhejiang University, Hangzhou, China. AD - Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China. FAU - Zhao, Yanmin AU - Zhao Y AD - Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. AD - Institute of Hematology, Zhejiang University, Hangzhou, China. AD - Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20200902 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (Biomarkers) RN - 0 (HLA Antigens) RN - 0 (Ligands) RN - 0 (Receptors, KIR) SB - IM MH - Alleles MH - Animals MH - Biomarkers MH - Graft Survival MH - Graft vs Host Disease/etiology/metabolism MH - HLA Antigens/genetics/immunology MH - *Hematopoietic Stem Cell Transplantation/adverse effects/methods MH - Humans MH - *Immune Reconstitution MH - Killer Cells, Natural/*immunology/*metabolism MH - Ligands MH - Protein Binding MH - Receptors, KIR/genetics/*metabolism MH - Treatment Outcome PMC - PMC7493622 OTO - NOTNLM OT - GVHD OT - KIR OT - NK cell reconstitution OT - hematopoietic stem cell transplantation OT - infection OT - relapse EDAT- 2020/09/29 06:00 MHDA- 2021/04/23 06:00 PMCR- 2020/01/01 CRDT- 2020/09/28 05:41 PHST- 2020/05/27 00:00 [received] PHST- 2020/07/27 00:00 [accepted] PHST- 2020/09/28 05:41 [entrez] PHST- 2020/09/29 06:00 [pubmed] PHST- 2021/04/23 06:00 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2020.02022 [doi] PST - epublish SO - Front Immunol. 2020 Sep 2;11:2022. doi: 10.3389/fimmu.2020.02022. eCollection 2020.