来自捐赠者的无细胞DNA动态与脏异位移植排斥后的临床结果之间的关联:一项前性多中心研究
Suphamai Bunnapradist1, Nicolae Leca2, Ziad S Zaky3
1UCLA School of Medicine, Los Angeles, California, USA.
概括
在移植拒绝后监测捐赠者衍生的无细胞DNA (dd-cfDNA) 有助于预测患者的结果. 具体的dd-cfDNA趋势表明,正确的移植功能和恢复的可能性更高,有助于临床管理.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 免疫学 免疫学 免疫学
- 移植科学 移植科学
背景情况:
- 活性排斥 (AR) 是移植功能障碍和损失的主要原因.
- 来自捐赠者的无细胞DNA (dd-cfDNA) 是检测AR的有希望的非侵入性生物标志物.
- 拒绝后患者的分层是个性化管理的关键.
研究的目的:
- 在移植受体 (KTRs) 中,研究生物检测证明的急性排斥 (BPAR) 后,来自供体的无细胞DNA (dd-cfDNA) 趋势的预后价值.
- 为了将dd-cfDNA动态与BPAR后12个月的临床结果相关联.
- 确定dd-cfDNA监测是否可以帮助用BPAR对KTR进行分层.
主要方法:
- 未来的多中心研究涉及移植接受者 (KTRs) 诊断出活检证明的急性排斥 (BPAR).
- 在BPAR诊断后8周内监测来自供体的无细胞DNA (dd-cfDNA) 水平.
- 基于dd-cfDNA趋势和与临床结果 (移植损失,随后的BPAR,移植功能恢复) 相关的患者分类在12个月.
主要成果:
- 在具有BPAR的66个KTR中,76%经历了负面结果,而24%的结果是积极的.
- 确定了四种不同的dd-cfDNA趋势:两个有利的,两个不利的.
- 有利的dd-cfDNA趋势与1年后显著更高的积极结果 (60倍) 和功能恢复 (13倍) 的几率密切相关.
结论:
- 拒绝后的捐赠者衍生的无细胞DNA (dd-cfDNA) 趋势在统计学上与移植接受者的临床结果有关.
- 活检证明急性排斥后的dd-cfDNA监测可以帮助医生分层患者,并可能指导管理决策.
- 这种生物标志物提供了一种动态的,非侵入性的方法来评估移植拒绝后的预后.
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