移植策略影响了在预防性和先发性供体淋巴细胞输液后GvHD的风险
Eva A S Koster1, Peter A von dem Borne2, Joost G K van der Hem2
1Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands. e.a.s.koster@lumc.nl.
Annals of hematology
|October 20, 2025
概括
在异性干细胞移植 (alloSCT) 后的捐赠淋巴细胞输液 (DLI) 可以对抗白血病,但会导致移植对主体疾病 (GvHD). 诸如感染和DLI中的虚构因素会影响结果,这表明剂量调整可以改善GvHD/GvL平衡.
科学领域:
- 血液学 血液学 血液学
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
背景情况:
- 在全源干细胞移植 (alloSCT) 后的捐赠淋巴细胞输液 (DLI) 可以增强移植对抗白血病 (GvL),但有可能导致移植对抗宿主疾病 (GvHD).
- 了解影响DLI全活性超出标准参数的因素对于优化治疗至关重要.
- 之前的研究已经确定病毒感染,混合奇默症和淋巴衰竭是T细胞耗尽alloSCT后的关键GvHD预测因素.
研究的目的:
- 为了研究病毒感染,混合奇默症和淋巴缺血对DLI全活性的影响.
- 为了评估GvHD和GvL结局在接受DLI的患者中移植后循环胺基alloSCT.
- 为了确定基于患者特定条件的DLI剂量调整是否可以改善GvHD/GvL平衡.
主要方法:
- 对83名患有急性白血病/骨髓质疏松综合征的患者进行了回顾性分析,这些患者在alloSCT后接受了预防性或先发性DLI.
- 在 DLI 时评估病毒感染,骨髓嵌合症和淋巴衰竭.
- 评估需要全身治疗的GvHD的2年累积发病率和GvL反应 (复发率).
主要成果:
- 需要全身治疗的GvHD的低2年累积发病率 (7%).
- 观察到病毒感染 (5%),混合嵌合症 (≥5%患者细胞,6%) 和淋巴缺血症 (17%).
- 在DLI时≥1%的混合嵌合症患者中,高转化率转化为全捐赠者嵌合症 (79%),在这些反应者中没有观察到复发,这表明有效的GvL.
结论:
- 在输液时,DLI全活性受到患者的免疫和化学状态的显著影响.
- 移植策略影响了与DLI相关的因素,突出了个性化DLI方法的需要.
- 根据输注前条件优化DLI剂量可能会增强GvL效应,同时最大限度地减少GvHD,改善患者的治疗结果.
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