PMID- 28993188 OWN - NLM STAT- MEDLINE DCOM- 20180706 LR - 20180706 IS - 1879-1166 (Electronic) IS - 0198-8859 (Linking) VI - 78 IP - 11-12 DP - 2017 Nov TI - The effect of killer cell immunoglobulin-like receptor genotype on outcome of hematopoietic stem cell transplantation from matched sibling. PG - 684-691 LID - S0198-8859(17)30513-X [pii] LID - 10.1016/j.humimm.2017.10.004 [doi] AB - The alloreactivity of natural killer (NK) cell after allogeneic hematopoietic stem cell transplantation (AHSCT) is regulated by the interaction between donor killer immunoglobulin-like receptors (KIRs) and recipient human leukocyte antigen (HLA)-class I molecules. The aim was to identify KIR genes, haplotypes and their HLA-class I ligands and to investigate their association with transplantation outcome. The study included 65 patient/donor pairs who received AHSCT from HLA-matched identical siblings. KIR genotyping was done for donors using reverse sequence specific oligonucleotide probes (rSSO) coupled with luminex technology, while HLA-C genotyping was performed in patients using rSSO strip assay. In multivariate analysis, KIR2DS4 was associated with significant reduced incidence of relapse (p = .002). A trend towards reduced incidence of relapse was also observed with more than two KIR B motifs (p = .09), whereas a significant increased relapse was associated with homozygous HLA-C2 ligand compared to combined C1/C2 and C1/C1 (p = .04). Activating KIR2DS3 was associated with rapid leukocyte engraftment (p = .02). While, KIR 2DL5 was associated with decreased CMV infection (p = .03) and better platelets engraftment (p = .05). KIR genes, haplotypes and HLA-C alleles have an impact on HSCT outcome. Better selection of donors with favorable KIR genotype can improve HLA-matched sibling HSCT outcome especially for AML patients. CI - Copyright (c) 2017 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved. FAU - Elfishawi, Sally M AU - Elfishawi SM AD - Bone Marrow Transplantation Laboratory Unit, National Cancer Institute, Cairo University, Egypt. FAU - Mossallam, Ghada I AU - Mossallam GI AD - Bone Marrow Transplantation Laboratory Unit, National Cancer Institute, Cairo University, Egypt. Electronic address: ghada.mossallam@nci.cu.edu.eg. FAU - El-Fattah, Raafat Abd AU - El-Fattah RA AD - Department of Medical Oncology, National Cancer Institute, Cairo University, Egypt. FAU - El-Haddad, Alaa AU - El-Haddad A AD - Department of Pediatric Oncology, National Cancer Institute, Cairo University, Egypt. FAU - Kamel, Azza M AU - Kamel AM AD - Bone Marrow Transplantation Laboratory Unit, National Cancer Institute, Cairo University, Egypt. LA - eng PT - Journal Article DEP - 20171007 PL - United States TA - Hum Immunol JT - Human immunology JID - 8010936 RN - 0 (HLA-C Antigens) RN - 0 (KIR2DS3 protein, human) RN - 0 (KIR2DS4 protein, human) RN - 0 (Receptors, KIR) RN - 0 (Receptors, KIR2DL5) SB - IM MH - Adolescent MH - Adult MH - Child MH - Female MH - Genotype MH - HLA-C Antigens/genetics MH - *Hematopoietic Stem Cell Transplantation MH - Histocompatibility MH - Histocompatibility Testing MH - Humans MH - Leukemia, Myeloid, Acute/*therapy MH - Male MH - Middle Aged MH - Polymorphism, Genetic MH - Receptors, KIR/*genetics MH - Receptors, KIR2DL5/*genetics MH - Siblings MH - Transplantation Tolerance MH - Young Adult OTO - NOTNLM OT - Allogeneic hematopoietic stem cell transplantation OT - Killer immunoglobulin-like receptor OT - NK cell OT - Relapse EDAT- 2017/10/11 06:00 MHDA- 2018/07/07 06:00 CRDT- 2017/10/11 06:00 PHST- 2016/12/02 00:00 [received] PHST- 2017/07/25 00:00 [revised] PHST- 2017/10/04 00:00 [accepted] PHST- 2017/10/11 06:00 [pubmed] PHST- 2018/07/07 06:00 [medline] PHST- 2017/10/11 06:00 [entrez] AID - S0198-8859(17)30513-X [pii] AID - 10.1016/j.humimm.2017.10.004 [doi] PST - ppublish SO - Hum Immunol. 2017 Nov;78(11-12):684-691. doi: 10.1016/j.humimm.2017.10.004. Epub 2017 Oct 7.