成功进行补体因子 H 自身抗体相关的 HUS 伴 CFHR1 和 3 缺乏及补体因子 H 变异 G2850T 的肾移植。

Successful renal transplantation in factor H autoantibody associated HUS with CFHR1 and 3 deficiency and CFH variant G2850T.

机构信息

Department of Nephro-Urology, Great Ormond Street Hospital for Children NHS Trust, and Faculty of Medicine, Imperial College, London, UK.

出版信息

Am J Transplant. 2010 Jan;10(1):168-72. doi: 10.1111/j.1600-6143.2009.02870.x. Epub 2009 Nov 16.

Abstract

Factor H (CFH) autoantibodies are associated with atypical hemolytic uremic syndrome (aHUS). Peritransplantation plasma exchange therapy and intensification of immunosuppression, with adjuvant use of anti-CD20 monoclonal antibodies has recently been advocated for cases of CFH-autoantibody associated aHUS. In this report, we describe successful deceased donor renal transplantation in a case of CFH-autoantibody associated aHUS with combined CFHR1 and 3 deficiency in addition to the CFH sequence variant, (cG2850T, pGln950His). CFH-autoantibodies were detected 2 weeks prior to transplantation. Disease recurrence was not observed using basiliximab, an IL2-receptor antagonist and high-dose corticosteroids with mycophenolate mofetil. Adjuvant therapies such as Rituximab nor intensification of plasma therapy were employed. Consequently, careful consideration needs to be given to the use of additional immunosuppression in certain cases of CFH-autoantibody associated aHUS. Serial measurement of CFH-autoantibodies is required in the immediate pre- and posttransplantation period to further clarify their role as a factor in the recurrence of aHUS posttransplantation. Furthermore, delineation of the functional significance of CFH-autoantibodies is warranted in individual cases.

摘要

补体因子 H (CFH) 自身抗体与非典型溶血尿毒综合征 (aHUS) 相关。最近提倡在 CFH 自身抗体相关 aHUS 病例中,进行移植前血浆置换治疗和免疫抑制强化治疗,并辅助使用抗 CD20 单克隆抗体。在本报告中,我们描述了一例 CFH 自身抗体相关 aHUS 患者成功接受了死亡供体肾移植,该患者除了 CFH 序列变异 (cG2850T,pGln950His) 外,还合并 CFHR1 和 3 缺乏。在移植前 2 周检测到 CFH 自身抗体。使用巴利昔单抗、白细胞介素 2 受体拮抗剂、大剂量皮质类固醇和霉酚酸酯,未观察到疾病复发。未使用利妥昔单抗或强化血浆治疗等辅助治疗。因此,在某些 CFH 自身抗体相关 aHUS 病例中,需要慎重考虑额外使用免疫抑制的问题。在移植前和移植后立即进行 CFH 自身抗体的连续检测,以进一步阐明其在移植后 aHUS 复发中的作用。此外,有必要在个别病例中阐明 CFH 自身抗体的功能意义。

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