早期捐赠者来源的无细胞DNA的提升与移植后未来拒绝和移植功能障碍的风险增加有关
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Updated: Jan 23, 2026

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Mouse Kidney Transplantation: Models of Allograft Rejection
Published on: October 11, 2014
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Sandesh Parajuli1, Emily E Zona1, Neetika Garg1
1Division of Nephrology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI.
Transplantation direct
|January 22, 2026
概括
早期来源于捐赠者的无细胞DNA (dd-cfDNA) 信号的提升增加了移植接受者 (KTRs) 的排斥风险. dd-cfDNA监测可以通过识别有风险的患者进行更密切的监测来改善长期结果.
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 分子诊断学
背景情况:
- 捐赠者衍生的无细胞DNA (dd-cfDNA) 是移植损伤的生物标志物.
- 在移植接受者 (KTRs) 中早期dd-cfDNA升高的长期影响尚不清楚.
研究的目的:
- 研究早期dd-cfDNA水平与KTRs的长期结果之间的关联.
- 为了确定dd-cfDNA监测是否提供了超越传统方法的预后价值.
主要方法:
- 从2019年2月到2022年3月,对255个KTR进行了回顾性分析.
- 在移植后90天内根据最高dd-cfDNA水平 (<0.5%,0.5%,1%,≥1%) 划分成各组.
- 在2年内监测移植功能障碍,de novo捐赠者特异抗体,排斥,死亡和移植失败.
主要成果:
- 较高的dd-cfDNA水平 (≥0.5%) 与明显较低的排斥自由度相关 (P=0.001).
- 与较高的dd-cfDNA水平 (P=0.122) 观察到较低的无移植功能趋势.
- 排斥的危险比率随着dd-cfDNA水平的增加而显著增加 (HR=2.12,P=0.01).
结论:
- 在KTR中早期的dd-cfDNA升高与排斥风险增加和移植功能低下相关.
- dd-cfDNA监测可以提供预后见解,补充活检发现.
- 通过dd-cfDNA监测识别高风险患者可以指导更密切的患者管理.
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