移植前敏感化及其对心脏移植排斥和存活结果的影响
Kyung-Hwa Shin1, Soo Yong Lee2, Min Ho Ju3
1Department of Laboratory Medicine, Pusan National University School of medicine, Yangsan, Republic of Korea; Department of Laboratory Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.
Transplant immunology
|July 24, 2025
概括
高计算的面板反应性抗体 (cPRA) 水平显著预测心脏移植 (HT) 接受者的抗体介导排斥 (AMR). 移植前cPRA评估对于识别高风险患者和改善HT结果至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 移植医学 移植医学
- 心脏病学 心脏病学
背景情况:
- 心脏移植 (HT) 接受者因敏感化而面临更高的拒绝风险.
- 通过计算面板反应性抗体 (cPRA) 评估敏感性是移植兼容性和结果预测的关键.
- 了解cPRA和人类白细胞抗原 (HLA) - 捐赠者特异性抗体 (DSA) 的影响对于识别高风险HT接受者至关重要.
研究的目的:
- 调查cPRA和先前存在的/de novo DSAs对HT结果的影响.
- 为了识别具有高排斥风险的HT接受者.
- 为了将cPRA水平与排斥和生存相关联.
主要方法:
- 对121名成年HT接受者的回顾性研究 (2014-2023年).
- 对cPRA值,流量细胞计交叉匹配 (FCXM) 和DSAs的分析.
- cPRA和DSA与抗体介导排斥 (AMR) 和T细胞介导排斥 (TCMR) 的关联.
主要成果:
- 51.2%的人患有TCMR,7.4%的人患有AMR.
- cPRA ≥50%与AMR,先前存在的DSA (pDSA) 和阳性FCXM相关.
- 更高的cPRA与更高的排斥风险和更短的无AMR生存时间相关.
结论:
- 高cPRA (≥50%) 显著预测AMR风险.
- cPRA与pDSA以及阳性FCXM相关.
- 移植前cPRA评估对于优化HT管理和改善结果至关重要.
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