低剂量ATG/PTCy用于预防杂交移植中的移植与宿主疾病:单中心体验
Jian Hong1, Xinglin Liang1, Jing Ni2
1Department of Hematology, the First Affiliated Hospital of Anhui Medical University, Hefei, China.
Frontiers in oncology
|June 24, 2025
概括
低剂量抗胸细胞球蛋白 (ATG) 与移植后环胺 (PTCy) 结合是一种可行的移植对宿主疾病 (GVHD) 预防方法,用于单独的干细胞移植. 在这种疗法中,移植前的淋巴细胞水平显著影响了急性GVHD的发生.
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:
- 抗胸细胞球蛋白 (ATG) 和移植后环胺 (PTCy) 用于移植对宿主疾病 (GVHD) 预防,用于单一血型造血干细胞移植 (haplo-HSCT).
- 之前的研究表明,不同剂量的ATG和PTCy具有有希望的结果.
研究的目的:
- 评估低剂量ATG/PTCy治疗方案在Haplo-HSCT中用于GVHD预防的疗效和安全性.
- 评估不同ATG剂量和输注前绝对淋巴细胞计数 (ALC) 对GVHD结局的影响.
主要方法:
- 追溯分析51名白血病患者接受低剂量ATG (5或7.5毫克/千克) 和PTCy (29毫克/千克) 的Haplo-HSCT.
- 评估ATG前ALC水平对急性GVHD发病率的影响.
主要成果:
- 急性GVHD (I-IV,II-IV,III-IV等级) 的100天累计发病率分别为42.9%,34.7%和12.2%.
- 两年生存率:整体生存率为66.7%,无病生存率为54.8%.
- 较低的ATG前ALC (<0.585×10^9/L) 与急性GVHD发病率显著降低有关.
结论:
- 低剂量ATG/PTCy疗法可用于Haplo-HSCT中的GVHD预防.
- 移植前的绝对淋巴细胞计数是影响这种疗法的急性GVHD风险的关键因素.
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