顺序相同与不匹配的非相关供体HCT与移植后环胺预防的结果
Yosra M Aljawai1, Jeremy Ramdial1, Gabriela Rondon1
1Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX.
Blood advances
|June 15, 2025
概括
捐赠者的年龄,不仅仅是捐赠者的类型,显著影响血液细胞移植 (HCT) 后的存活率. 较老的捐赠者,特别是在哈普罗相同的HCT中,与较年轻的不匹配的非相关捐赠者相比,总体存活率较低.
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:
- 有限的比较数据存在于 haploidentical 与不匹配的无关捐赠者 (MMUD) 血造细胞移植 (HCT) 使用移植后环胺用于移植与宿主疾病 (GVHD) 预防.
- 捐赠者的年龄是HCT结果中研究不足的一个因素.
研究的目的:
- 为了比较 haploidentical 和 MMUD HCT 接受者之间的整体存活期 (OS).
- 调查捐赠者的年龄对HCT的OS的影响.
主要方法:
- 追溯分析了660名平分标识型和195名MMUD HCT接受者.
- 使用了考克斯的比例危险建模,治疗权重的逆概率 (IPTW) 和匹配对分析.
- 纳入了来自国际血液和骨髓移植研究中心 (CIBMTR) 的外部MMUD验证队列.
主要成果:
- 在多变量分析 (HR 1.20; P = .16) 中,均和MMUD HCT之间的OS没有显著差异.
- 捐赠者的年龄与OS有非线性关联.
- 较老的平分异性捐赠者 (>50岁) 与较年轻的MMUD接受者 (<30岁) 相比显示出较低的OS (HR 1.91;P = .005).
结论:
- 捐赠者的年龄似乎是一个比捐赠者类型更突出的因素影响HCT后的OS.
- 供体类型对OS的影响可能会根据供体年龄进行调整.
- 需要对更大的队列进行进一步的研究,以澄清供体类型,供体年龄和HLA因子之间的相互作用.
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