The impact of donor human leukocyte antigen-Bw4 allele on natural killer cell reconstitution and transplant-related mortality in haploidentical transplantation
明 赵, 郑丽 徐, 星星 余, 亦扬 丁, 英军 常, 晓辉 张, 晓军 黄, 翔宇 赵

TL;DR
This study shows that donor HLA-Bw4 expression improves NK cell recovery and reduces transplant-related mortality in haploidentical stem cell transplants.
Contribution
The study identifies HLA-Bw4 as a novel factor influencing NK cell reconstitution and transplant outcomes in haploidentical transplantation.
Findings
Donor HLA-Bw4 promotes faster NK cell recovery and functional restoration.
HLA-Bw4 expression is associated with reduced transplant-related mortality, especially infection-related mortality.
Post-transplant cyclophosphamide does not affect the benefits of HLA-Bw4 expression.
Abstract
探讨在接受来自母体或旁系供者的非去T细胞单倍体造血干细胞移植时,供者HLA-Bw4表达对NK细胞重建和移植预后的影响。 本研究前瞻性入组了32例接受来自母体或旁系的供者非去T细胞单倍体移植患者(队列1),评估供者HLA-Bw4表达对NK细胞重建的影响;同时回顾性研究了278例接受来自母体或旁系的供者非去T细胞单倍体移植患者(队列2),分析供者HLA-Bw4对HSCT预后的影响。同时还分别比较了在接受移植后环磷酰胺(PT-Cy)和不接受PT-Cy的情况下,供者HLA-Bw4表达对HSCT预后影响的差异。 编码HLA-Bw4的供者促进了NK细胞的重建和功能恢复,PT-Cy体内应用并未影响供者HLA-Bw4促进NK细胞重建。编码HLA-Bw4的供者与移植相关死亡率(Transplantation-related mortality,TRM),尤其是感染相关的TRM(infection-related TRM)降低相关,PT-Cy体内应用并未影响供者HLA-Bw4降低TRM。 在进行来自母体或旁系供者的非体外去T细胞单倍体移植时,编码HLA-Bw4的供者有助于快速NK细胞重建和功能恢复,并且与较低的TRM(尤其是感染相关TRM)显著相关。这些结果表明,供者HLA-Bw4的表达对于单倍体移植患者的临床结果具有重要意义。因此,在供受者选择和移植策略中,考虑供者HLA-Bw4可能具有临床意义。
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Taxonomy
TopicsTransplantation: Methods and Outcomes
