在淋巴细胞恶性瘤的异构骨髓移植中接受者克隆性血液形成
Philip H Imus1, Sergiu Pasca1, Hua-Ling Tsai1
1Division of Hematologic Malignancy, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins Hospital, Baltimore, MD.
Blood advances
|April 19, 2024
概括
在接受异构血液和骨髓移植 (alloBMT) 的老年人中,克隆造血 (CH) 显著恶化了生存率,主要是由于非复发性死亡率的增加. 接受者的先前存在的CH是影响alloBMT结果的关键因素.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 移植医学 移植医学
背景情况:
- 全基血和骨髓移植 (alloBMT) 是血液恶性瘤的重要治疗方法,在老年人群中越来越多地使用.
- 衰老与更高的克隆性造血症 (CH) 患病率有关,这是一种血液造血干细胞获得突变的疾病.
- 虽然已知供体CH的影响,但受体CH对alloBMT结果的影响仍未得到充分探索.
研究的目的:
- 调查移植前受体克隆性血液形成 (CH) 对老年人异性血液和骨髓移植 (alloBMT) 后的结果的影响.
- 为了确定CH是否影响总体存活率,非复发死亡率和复发率,在这个患者队列中.
主要方法:
- 追溯分析97名60岁及以上的患者,这些患者在2017年至2022年期间接受了针对淋巴细胞恶性瘤的alloBMT治疗.
- 在移植之前在接受者中检测克隆性血液形成 (CH).
- 综合存活率 (OS) 和非复发性死亡率 (NRM) 的比较,包括患有和没有CH的患者.
主要成果:
- 在62%的老年alloBMT接受者中检测到克隆性血液形成 (CH),患病率随年龄增长而增加.
- 移植前的CH与明显更差的3年整体存活率 (47%对78%) 和更高的1年非复发死亡率 (35%对11%) 相关.
- 增加的CH负担和突变数与更差的存活率和NRM相关,但CH没有影响复发率.
结论:
- 受体克隆造血 (CH) 是对接受异构血液和骨髓移植 (alloBMT) 的老年人不良结果的强有力的,独立的预测因素.
- 冠状动脉病的负面影响主要是由非复发性死亡率的增加驱动的,而不是疾病复发.
- 需要进一步的研究来制定减轻患者CH对移植成功的不良影响的策略.
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