添加带血输血与无关的捐赠者移植相匹配,作为无形性贫血的首选:来自单一中心的比较研究
Tonglin Hu1,2,3, Xinru Jia1,2, Chuanao Xin1,2
1Department of Hematology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, Zhejiang, China.
Annals of medicine
|March 17, 2026
概括
与带血匹配的无血缘捐赠者的造血干细胞移植为无形性贫血提供了很好的结果,与匹配的兄弟捐赠者相比,优于其他替代方案. 这种方法有效地管理混合的仿真和移植对宿主疾病.
科学领域:
- 造血干细胞移植 (HSCT) 的方法
- 无形性贫血 (AA) 是一种疾病.
- 免疫学和移植
背景情况:
- 匹配的兄弟捐赠者 (MSD) 是重症无形成性贫血 (AA) 的HSCT首选者.
- 当MSDs不可用时,但与增加的移植与宿主疾病 (GVHD) 相关时,考虑替代性捐赠者,如非相关的捐赠者 (URDs) 和单一的 (Haplo) 捐赠者.
- 添加到URD-HSCT的带血液 (UCB) 输血的疗效和安全性需要与AA中的MSD-HSCT和Haplo-HSCT进行比较.
研究的目的:
- 为了比较UCB输血的疗效和安全性,在患有严重无形性贫血的患者中添加了URD-HSCT (URD-cord-HSCT) 与MSD-HSCT和Haplo-HSCT.
- 评估不同类型的捐赠者对治疗的反应和生存结果.
主要方法:
- 在1:1:2的比例下,追溯招募接受URD-cord-HSCT (n=26),MSD-HSCT (n=26) 或Haplo-HSCT (n=52) 的患者.
- 研究期间:2014年1月至2023年12月.
- 评估临床特征,治疗反应和生存结果,包括移植,整体存活率 (OS),无事件存活率 (EFS),混合嵌合体 (MC) 和急性GVHD.
主要成果:
- 在两组中没有观察到中性粒细胞和血小板移植的显著差异.
- 三年后的OS率分别为88.0% (URD-cord-HSCT),92.1% (MSD-HSCT) 和74.8% (Haplo-HSCT);EFS率分别为77.3%,92.1%和69.0% (p > 0.10).
- 完全与HLA匹配的URD-cord-HSCT (MUD-cord-HSCT) 与Haplo-HSCT和单个HLA基因基因不匹配的URD-cord-HSCT (MMUD-cord-HSCT) 相比显示出更好的OS (100%) 和EFS (85.7%) (p <0.05). 与MSD-HSCT (24.48%,p=0.01) 相比,MUD-cord-HSCT的MC发病率显著较低 (0%),与MMUD-cord-HSCT和Haplo-HSCT相比,II-IV级急性GVHD的发病率较低.
结论:
- 带血液输血添加到匹配的无关献血者HSCT (MUD-cord-HSCT) 提供了一个最佳的解决方案,用于管理混合奇美和GVHD在无形性贫血.
- MUD-cord-HSCT表现出与匹配的兄弟捐赠者HSCT相比或优于其结果,比不匹配的URD-HSCT和单双相同的HSCT生存率明显更好.
- MUD-cord-HSCT代表了对严重无形成性贫血的高度有效的替代捐赠者策略,提供了优异的生存率和减少并发症.
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