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利用dd-cfDNA监测,在美国的一名脏移植患者中,促进免疫抑制最小化. 退伍军人人口中的老兵
Laura Cotiguala1, Anne Przybylski1, Cara Joyce1,2
1Edward Hines Jr. VA Hospital, Hines, Illinois, USA.
Pharmacotherapy
|January 22, 2026
概括
捐赠者衍生的无细胞DNA (dd-cfDNA) 监测有助于指导移植受体 (KTR) 的免疫抑制最小化. 大约50%的低风险KTR可以容忍降低免疫抑制,表明dd-cfDNA.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 移植免疫学 移植免疫学
- 分子诊断学 分子诊断
背景情况:
- 来自捐赠者的无细胞DNA (dd-cfDNA) 是移植排斥的生物标志物.
- 它在指导免疫抑制管理中的作用需要进一步研究.
- 这项研究研究了dd-cfDNA在免疫抑制最小化和监测中的实用性.
研究的目的:
- 评估在移植接受者 (KTR) 中以dd-cfDNA为指导的免疫抑制最小化疗法的有效性.
- 根据dd-cfDNA水平,排斥和抗体发育来定义免疫耐受性.
- 评估KTR接受免疫抑制降低的免疫耐受率.
主要方法:
- 38名KTR患者的回顾性病例系列,接受了对塔克罗利斯和普雷尼松的免疫抑制最小化.
- 基线dd-cfDNA≤0.5%是最小化所需的.
- 免疫耐受性定义为没有免疫事件 (dd-cfDNA变化,BPAR,de novo DSA) 在最小化后.
主要成果:
- 在免疫抑制最小化后,21个 (55.3%) 的KTR实现了免疫耐受性.
- 17个KTR是不耐受的,主要是由于dd-cfDNA升高 (94%) 或de novo DSA/BPAR.
- 不容忍的KTR显示了更多的HLA不匹配和早期最小化的趋势.
结论:
- 大约50%的低风险KTR基线dd-cfDNA<0.5%的耐受性免疫抑制最小化.
- dd-cfDNA对于识别最小化候选物和最小化后监测是有价值的.
- 这种方法有助于在移植中有效地管理免疫抑制.
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