在新的捐赠者特异性抗体 (DSA) 开发后的移植结果与DSA的持久性相关
A Jaffer1, O Shaw2, D Stringer3
1Centre for Nephrology, Urology and Transplantation, Department of Inflammation Biology, King's College London, London, UK.
Transplant immunology
|October 11, 2025
概括
移植后持续存在的新型捐赠者特异性抗体 (DSA) 会增加抗体中介排斥 (ABMR) 和移植失败 (GF) 的风险. 早期发现和治疗持久性DSA对于改善移植结果至关重要.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學.
- 移植免疫学 移植免疫学
- 临床医学 临床医学
背景情况:
- 新生捐赠者特异性抗体 (DSA) 与移植排斥和移植损失有关.
- 在OuTSMART试验中,新的DSA被确定为不良结果的危险因素.
- 这项研究调查了基于移植后DSA de novo持续性的结果.
研究的目的:
- 为了比较移植接受者持久de novo DSA与那些有过渡性或无法检测的DSA的结果.
- 为了确定与抗体介导排斥 (ABMR) 和移植失败 (GF) 相关的风险因素,在新的DSA的背景下.
主要方法:
- 在随机化中对132名脏移植患者进行了后期分析,他们接受了de novo DSA.
- 根据连续HLA抗体测试,患者被分为持久性DSA (DSA+/+) 和非持久性DSA (DSA+/-) 组.
- 包括ABMR和移植失败在内的结果被使用生存分析对组进行了比较.
主要成果:
- 与非持久性DSA (DSA+/-) 相比,持久性DSA (DSA+/+) 的平均光强度 (MFI) 显著更高.
- DSA+/+组的ABMR (15.4%对2.6%) 和移植失败率 (20.5%对6.6%) 显着更高.
- 持续的DSA和HLA类I和II抗体的存在是ABMR和移植失败的独立风险因素.
结论:
- 移植后持续的de novoDSA与MFI升高有关.
- 持续的de novo DSA显著增加了抗体介导排斥和移植失败的风险.
- 这些发现强调了监测和管理持续性DSA的重要性,以改善长期移植存活率.
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