使用冷保存的全源干细胞移植的结果与新鲜的造血原生细胞产品相比
Bo Angela Wan1, Lorenzo Lindo2, Yasser Abou Mourad3
1Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Cytotherapy
|May 31, 2024
概括
低温保存的造血原生细胞 (cryo-HPCs) 在全基移植中显示出与新鲜的HPCs相似的生存结果. 然而,冷保存与移植失败和移植延迟的增加有关,生存率低于90%是不良结果的关键预测因素.
科学领域:
- 血液学 血液学 血液学
- 移植免疫学 移植免疫学
- 在瘤学瘤学.
背景情况:
- 全基性造血干细胞移植 (alloHSCT) 是血液恶性瘤的关键治疗方法.
- 从历史上看,由于担心生命力丧失,新鲜的造血原生细胞 (HPC) 产品比冷保存的HPC (冷-HPC) 更受青.
研究的目的:
- 在COVID-19大流行期间使用冷HPC分析alloHSCT结果.
- 将这些结果与接受新鲜HPC的历史队伍进行比较.
主要方法:
- 英国哥伦比亚省成人alloHSCT患者的回顾性图表审查 (2017年6月至2021年11月).
- 在冷HPC和新鲜HPC组之间比较基线特征,总生存率 (OS),移植和移植与宿主疾病 (GVHD).
- 单变量和多变量分析以确定OS,复发,死亡率和移植失败的预测因素.
主要成果:
- 与新鲜的HPC相比,冷HPC的12个月整体存活率 (75%与77%) 和复发率相似.
- 接受冷HPCs的患者经历了中性粒细胞和血小板移植的延迟 (2-3天长时间).
- 化HPC与增加的初级移植失败有关 (P=0.04),而新鲜HPC的中度/重度慢性GVHD较高 (32%对17%).
- 生命力 <90%到达时显著预测的OS,初级移植失败和二次移植失败.
结论:
- 在多变量分析中,冷保存不能独立预测生存或移植.
- 活力低于90%是潜在的移植失败的关键指标.
- 输液中心可行性评估可以指导HPC产品回忆的决策,以减轻移植失败风险.
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