期刊
BLOOD
卷 116, 期 14, 页码 2411-2419出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2010-05-283051
关键词
-
类别
资金
- National Institutes of Health/NCI [P01 111412]
- National Cancer Institute (NCI) [U24-CA76518]
- National Heart, Lung and Blood Institute (NHLBI) [5U01HL069294]
- National Institute of Allergy and Infectious Diseases (NIAID)
- Health Resources and Services Administration (HRSA/DHHS) [HHSH234200637015C]
- Office of Naval Research [N00014-06-1-0704, N00014-08-1-0058]
Killer-cell immunoglobulin-like receptor (KIR) genes form a diverse, immunogenetic system. Group A and B KIR haplotypes have distinctive centromeric (Cen) and telomeric (Tel) gene-content motifs. Aiming to develop a donor selection strategy to improve transplant outcome, we compared the contribution of these motifs to the clinical benefit conferred by B haplotype donors. We KIR genotyped donors from 1409 unrelated transplants for acute myelogenous leukemia (AML; n = 1086) and acute lymphoblastic leukemia (ALL; n = 323). Donor KIR genotype influenced transplantation outcome for AML but not ALL. Compared with A haplotype motifs, centromeric and telomeric B motifs both contributed to relapse protection and improved survival, but Cen-B homozygosity had the strongest independent effect. With Cen-B/B homozygous donors the cumulative incidence of relapse was 15.4% compared with 36.5% for Cen-A/A donors (relative risk of relapse 0.34; 95% confidence interval 0.2-0.57; P < .001). Overall, significantly reduced relapse was achieved with donors having 2 or more B gene-content motifs (relative risk 0.64; 95% confidence interval 0.48-0.86; P = .003) for both HLA-matched and mismatched transplants. KIR genotyping of several best HLA-matched potential unrelated donors should substantially increase the frequency of transplants by using grafts with favorable KIR gene content. Adopting this practice could result in superior disease-free survival for patients with AML. (Blood. 2010;116(14): 2411-2419)
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据