在高度敏感的患者中,通过可接受的不匹配计划分配脏的积极长期结果
Yara Strehler1, Nils Lachmann1, Matthias Niemann2
1Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.
概括
可接受的不匹配 (AM) 移植计划为高度敏感的患者提供及时移植,可接受的结果. 间接敏感的患者受益于介质素-2受体对手的诱导疗法,改善移植的存活率,而不会增加排斥或de novo捐赠者特异性抗体的形成.
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 移植 移植 移植
背景情况:
- 欧洲移植可接受不匹配 (AM) 计划为高度敏感的患者提供了移植.
- 长期的结果,包括移植的存活率和新的捐赠者特异性抗体 (dnDSA) 的形成,需要进一步的研究.
- 最佳的诱导疗法和人类白细胞抗原 (HLA) 表皮图匹配对dnDSA的影响尚未完全确定.
研究的目的:
- 在AM计划中评估移植的长期临床和免疫结果.
- 为了比较可接受不匹配 (AM),非敏感 (PRA-0) 和中间敏感 (PRA-6/84) 患者之间的结果.
- 评估诱导疗法和HLA表位组匹配对移植存活率和dndsa形成的影响.
主要方法:
- 在AM计划 (2000-2019) 中,对94名脏移植接受者的单心,回顾性研究.
- 与病例对照对照对照的非敏感 (PRA 0-5%) 和中间敏感 (PRA 6-84%) 患者的队列进行比较.
- 分析整体移植存活率,抗体中介排斥率和dndsa发病率.
主要成果:
- 在PRA-0和AM队伍中,10年移植存活率相似;PRA-6/84显示出比PRA-0.更糟糕的结果.
- 与AM和PRA-6/84组相比,PRA-0组的抗体介导排斥率较低.
- dnDSA发生率在PRA-0与AM相比较低,在AM和PRA-6/84之间没有差异. 介素-2受体对抗剂 (IL2RA) 诱导改善了PRA-6/84患者的存活率. 广泛的HLA不匹配和表位不匹配预测了dnDSA的形成.
结论:
- 该AM计划通过允许及时移植,具有可接受的风险概况和非劣质结果来证明其使用是合理的.
- 在中间敏感的患者中,IL2RA诱导改善了与耗尽诱导相比的移植存活率,而不会对排斥或dNSA产生不良影响.
- 在 silico 表位匹配可能会减少 dnDSA 的形成,特别是在高风险的 AM 患者中.
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