PMID- 19002464 OWN - NLM STAT- MEDLINE DCOM- 20090303 LR - 20220801 IS - 1863-2297 (Print) IS - 1863-2297 (Linking) VI - 30 IP - 4 DP - 2008 Dec TI - Clinical impact of natural killer cell reconstitution after allogeneic hematopoietic transplantation. PG - 489-503 LID - 10.1007/s00281-008-0136-1 [doi] AB - Although the optimal donor for allogeneic hematopoietic stem cell transplantation is a human leukocyte antigen (HLA)-matched sibling, 75% of patients do not have a match and alternatives are matched unrelated volunteers, unrelated umbilical cord blood units, and full HLA-haplotype-mismatched family members. This review will focus on the open issues of allogeneic hematopoietic transplantation and on the benefits of natural killer (NK) cell alloreactivity and its underlying mechanisms. Donor-versus-recipient NK cell alloreactivity derives from a mismatch between inhibitory receptors for self major histocompatibility complex (MHC) class I molecules on donor NK clones and the MHC class I ligands on recipient cells. These NK clones sense the missing expression of the self MHC class I allele on the allogeneic targets ("missing self") and mediate alloreactions. Here, we review the translation of NK cell allorecognition into the clinical practice of allogeneic hematopoietic transplantation and discuss how it has opened innovative perspectives in the cure of leukemia. FAU - Velardi, Andrea AU - Velardi A AD - Division of Hematology and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Perugia, Ospedale Santa Maria della Misericordia, Perugia, Italy. velardi@unipg.it FAU - Ruggeri, Loredana AU - Ruggeri L FAU - Mancusi, Antonella AU - Mancusi A FAU - Burchielli, Emanuela AU - Burchielli E FAU - Perruccio, Katia AU - Perruccio K FAU - Aversa, Franco AU - Aversa F FAU - Martelli, Massimo F AU - Martelli MF CN - Immunobiology Working Party of the European Group for Blood and Marrow Transplantation (EBMT) LA - eng GR - 1 P01 CA 100265-01A1/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20081111 PL - Germany TA - Semin Immunopathol JT - Seminars in immunopathology JID - 101308769 RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Animals MH - Graft Rejection/immunology MH - Graft vs Host Disease MH - Haplotypes MH - *Hematopoietic Stem Cell Transplantation MH - Histocompatibility Antigens Class I/immunology MH - Humans MH - Killer Cells, Natural/*immunology MH - Leukemia/therapy MH - Transplantation, Homologous/*immunology RF - 115 EDAT- 2008/11/13 09:00 MHDA- 2009/03/04 09:00 CRDT- 2008/11/13 09:00 PHST- 2008/08/31 00:00 [received] PHST- 2008/09/30 00:00 [accepted] PHST- 2008/11/13 09:00 [pubmed] PHST- 2009/03/04 09:00 [medline] PHST- 2008/11/13 09:00 [entrez] AID - 10.1007/s00281-008-0136-1 [doi] PST - ppublish SO - Semin Immunopathol. 2008 Dec;30(4):489-503. doi: 10.1007/s00281-008-0136-1. Epub 2008 Nov 11.