肝移植中的循环无细胞DNA:移植前和移植后的移植功能障碍生物标志物
Monica Sorbini1, Tullia Carradori1, Damiano Patrono2
1Department of Medical Sciences, University of Turin, Turin, Italy.
Artificial organs
|November 18, 2024
概括
来自捐赠者的无细胞DNA (dd-cfDNA) 和线粒体cfDNA (mt-cfDNA) 显示出对监测肝移植 (LT) 移植健康状况的前景. 增加的dd-cfDNA表明受伤,而机器输液中的mt-cfDNA与功能和结果相关.
科学领域:
- 移植免疫学 移植免疫学
- 发现生物标志物的发现.
- 器官保存技术 器官保存技术
背景情况:
- 肝移植 (LT) 面临着由于器官稀缺和移植后监测困难的挑战.
- 机器输液增强了器官的保存,但需要可靠的生物标志物来评估移植.
- 来自捐赠者的无细胞DNA (dd-cfDNA) 和线粒体cfDNA (mt-cfDNA) 显示出评估移植损伤和活力的潜力.
研究的目的:
- 评估来自供体的无细胞DNA (dd-cfDNA) 作为肝移植受体中移植功能障碍的生物标志物.
- 在机器输液液中评估线粒体cfDNA (mt-cfDNA),作为移植状态的指标.
- 为了将这些无细胞DNA标记与移植功能和临床结果相关联,在LT后的六个月内.
主要方法:
- 一项前性观察队列研究包括45名肝移植接受者.
- dd-cfDNA在LT前后的血液样本中使用滴滴数字PCR量化.
- 总cfDNA和mt-cfDNA被测量为来自双低温氧化器 perfusion (D-HOPE) 的 perfusate 在定期间隔.
主要成果:
- 在LT后的dd-cfDNA水平达到峰值,与转氨酶水平和组织学损伤相关.
- 增加的dd-cfDNA水平与术后并发症和排斥有关.
- 在D-HOPE期间的透mt-cfDNA水平与LT后的移植功能相关,并且在早期全移植功能障碍和严重并发症的情况下更高.
结论:
- dd-cfDNA被证实是肝移植后移植损伤的标志物.
- 在D-HOPE期间透mt-cfDNA与移植功能和临床结果相关.
- 整合这些cfDNA测试可以提高肝移植管理和输液期间的生存能力评估.
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