Abstract：
:The goal of this study was to evaluate the influence of KIR-HLA genotypes on the outcome of patients undergoing treatment for haematological malignancies by non-T-depleted lymphocyte haematopoietic stem cell transplantation (HSCT) from HLA-matched sibling donors. The prospective study was conducted at the Center of Hematology, University of Campinas, and 50 patients and their donors were followed up from 2008 to 2014. KIR and HLA class I genes were genotyped and patients grouped based on the presence of KIR ligands combined with KIR genotype of their respective donors. Patients with all KIR ligands present (n=13) had a significantly higher (p=0.04) incidence of acute graft-versus-host-disease (GVHD) than patients with one or more KIR ligands missing (n=37). The overall survival following transplantation of patients with myeloid malignancies (n=27) was significantly higher (p=0.035) in the group with one or more KIR ligands missing (n=18) than in the group with all ligands present (n=9). Presence of KIR2DS2 was associated with a worsening of HSCT outcome while reactivation of cytomegalovirus (CMV) infection improved the outcome of patients with one or more KIR ligands missing. Our results indicate that KIR-HLA interactions affect the outcome of the HLA-matched transplantation, particularly in patients with myeloid malignancies.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Cardozo DM,Marangon AV,da Silva RF,Aranha FJP,Visentainer JEL,Bonon SHA,Costa SCB,Miranda ECM,de Souza CA,Guimarães Fdoi
10.1016/j.humimm.2016.07.003subject
Has Abstractpub_date
2016-10-01 00:00:00pages
861-868issue
10eissn
0198-8859issn
1879-1166pii
S0198-8859(16)30156-2journal_volume
77pub_type
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