多模式,多学科的方法,以克服技术上的挑战,在状细胞疾病的儿科干细胞收获与预制的供体特异性抗体
Mohit Chowdhry1, S Minu Lekshmi1, Uday Kumar Thakur1
1Department of Transfusion Medicine and Transplant Immunology, Indraprastha Apollo Hospitals, New Delhi, India.
Asian journal of transfusion science
|November 17, 2025
概括
患有捐赠者特异性抗体 (DSA) 的儿童状细胞病的治疗需要采用多模式的方法. 红细胞交换和治疗性血交换对于成功的干细胞移植至关重要.
科学领域:
- 血液学 血液学 血液学
- 免疫学 免疫学 免疫学
- 干细胞移植 干细胞移植
背景情况:
- 状细胞疾病 (SCD) 涉及血红蛋白S (HbS) 聚合,血管封闭和内皮功能障碍.
- 在患有预形成的供体特异性抗体 (DSA) 的患者中管理SCD对干细胞移植提出了独特的挑战.
- 一个10岁的女孩患有状细胞贫血和DSA,需要专门的治疗策略.
研究的目的:
- 描述了一种多模式的方法,用于患有状细胞贫血的儿科患者和接受干细胞移植的预先形成的DSA.
- 在患有高HbS水平的患者自身干细胞采集期间解决并发症.
- 在异性干细胞移植之前降低DSA水平.
主要方法:
- 最初的自身干细胞采集由于与HbS水平升高相关的过度凝固而被中止.
- 进行红细胞交换 (RCE),以促进成功的自身干细胞收获.
- 治疗性血交换 (TPE) 的五个周期用于降低DSA平均光强度 (MFI).
主要成果:
- 红细胞交换成功实现了随后的自身干细胞采集.
- 治疗性血交换有效降低了供体特异性抗体水平.
- 患者耐受了所有手术,没有任何不良事件.
结论:
- 涉及RCE和TPE的多模式方法在治疗接受干细胞移植的DSA状细胞病患者中是有效的.
- 移植前的干预措施可以克服采集挑战并降低抗体水平.
- 这种策略为复杂的儿科SCD病例提供了可行的选择.
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