Relation between Acute GVHD and NK Cell Subset Reconstitution Following Allogeneic Stem Cell Transplantation.

Relation between Acute GVHD and NK Cell Subset Reconstitution Following Allogeneic Stem Cell Transplantation.
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DOI:
10.3389/fimmu.2016.00595
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发表时间:
2016
影响因子:
7.3
通讯作者:
Wolff D
Wolff D
中科院分区:
医学2区
文献类型:
--
作者:
Ullrich E;Salzmann-Manrique E;Bakhtiar S;Bremm M;Gerstner S;Herrmann E;Bader P;Hoffmann P;Holler E;Edinger M;Wolff D

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异基因干细胞移植(allo-SCT)的主要挑战之一是降低移植物抗宿主病(GVHD)的风险,同时增强移植物抗白血病(GVL)效应。异基因SCT后自然杀伤(NK)细胞的重建是值得注意的,因为它们已知能够诱导GVL而不发生GVHD。在本研究中,我们调查了急性移植物抗宿主病(aGVHD)的发病率和严重程度与异基因造血干细胞移植后NK细胞亚群的早期重建之间的关系。我们使用流式细胞术分析了来自107例患者的342份样本,重点关注未成熟的CD 56 high和成熟的细胞毒性CD 56 dim NK细胞。allo-SCT后免疫重建的纵向分析表明,aGVHD的发生与整个NK细胞群(特别是CD 56高亚群)的延迟扩增有关。值得注意的是,CD 56 high NK细胞的重建紊乱也与aGVHD的严重程度相关。
One of the major challenges of allogeneic stem cell transplantation (allo-SCT) is to reduce the risk of graft-versus-host disease (GVHD) while boosting the graft-versus-leukemia (GVL) effect. The reconstitution of natural killer (NK) cells following allo-SCT is of notable interest due to their known capability to induce GVL without GVHD. Here, in this study, we investigate the association between the incidence and severity of acute graft-versus-host disease (aGVHD) and the early reconstitution of NK cell subsets following allo-SCT. We analyzed 342 samples from 107 patients using flow cytometry, with a focus on immature CD56high and mature cytotoxic CD56dim NK cells. Longitudinal analysis of immune reconstitution after allo-SCT showed that the incidence of aGVHD was associated with a delayed expansion of the entire NK cell population, in particular the CD56high subset. Notably, the disturbed reconstitution of the CD56high NK cells also correlated with the severity of aGVHD.
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