B细胞成熟抗原向的T细胞激活疗法与B细胞枯竭结合,用于治疗耐火性HLA敏感化
Juliette Leon1, Olivier Aubert1, Magali Devriese2
1Département des maladies du rein et métabolisme, transplantation et immunologie clinique, Hôpital Necker, Assistance-Publique Hôpitaux de Paris, Université Paris-Cité, Paris, France; INSERM UMR 1151, Institut Necker Enfants Malades, Paris, France.
Kidney international
|February 15, 2026
概括
一种新型的双剂免疫疗法有效地消除了高度敏感的移植候选人的高位抗人类白细胞抗原 (HLA) 抗体. 这种方法为患有过度敏感的患者提供了希望,使移植成功.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學.
- 移植 移植 移植 移植
背景情况:
- 预先形成的抗人类白细胞抗原 (HLA) 抗体对移植成功构成重大挑战.
- 目前的脱敏疗法对于具有极高抗体水平的患者通常是无效的,导致长时间透析.
- 这一案例凸显了高度敏感的移植候选人对先进免疫疗法的未满足需求.
研究的目的:
- 报告一个移植候选人的新型免疫治疗策略,其HLA敏感度极高 (cPRA>99.9%).
- 评估针对高度敏感患者的B细胞和血细胞的组合疗法的疗效和安全性.
主要方法:
- 一名37岁的妇女患有NPHS2相关的性综合征和移植失败史,在同情使用下接受治疗.
- 一种救援疗法将奥比努图祖马布 (抗CD20) 与埃拉拉纳塔马布 (抗BCMA) 结合起来,以耗尽记忆B细胞和血细胞.
- 免疫抑制包括巴西西马布诱导和三重药物维护与everolimus.
主要成果:
- 组合疗法耐受良好,只有暂时的细胞因子释放综合征.
- 计算的面板反应性抗体 (cPRA) 在六个月内从99.96%降至0%.
- 该患者成功地通过低水平的捐赠者特异性抗体 (DSAs) 进行移植,没有反弹,并在移植后的十个月内保持出色的移植功能.
结论:
- 这种双剂免疫疗法实现了前所未有的高位抗HLA抗体的消耗.
- 该战略代表了一种有希望的方法,用于管理移植候选人的过度敏感性.
- 在持续的移植功能和没有排斥的情况下,实现了成功的移植.
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