Prevention trumps treatment of antibody-mediated transplant rejection.

Prevention trumps treatment of antibody-mediated transplant rejection.
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对于抗体介导的移植排斥反应,预防胜于治疗。

DOI:
10.1172/jci42532
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发表时间:
2010
期刊:
The Journal of clinical investigation
影响因子:
--
通讯作者:
Iwakoshi,Neal
Iwakoshi,Neal
中科院分区:
--
文献类型:
--
作者:
Knechtle,StuartJ;Kwun,Jean;Iwakoshi,Neal

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实体器官移植的巨大成功和免疫抑制疗法的进步背后的现实是,移植的长期存活率保持相对不变,这在很大程度上是由于慢性和潜伏的同种抗体介导的移植物损伤。一半的心脏移植受者会在10年内出现慢性排斥反应——这是一个令人生畏的数据,特别是对于那些希望通过忍受移植的严酷来延长寿命的年轻患者。目前的免疫抑制药典在预防晚期同种异体抗体相关的慢性排斥反应方面相对无效。在这一期的jci中,Kelishadi等人报道了食蟹猴在心脏移植前先删除B细胞,再加上传统的移植后环孢素免疫抑制治疗,不仅显著减轻了急性移植排斥反应,还显著减轻了同种异体抗体的产生和慢性移植排斥反应。这种先发制人的成功暗示了B细胞在移植排斥反应中的核心作用,这种方法可能有助于延缓或预防实体器官移植后的慢性排斥反应。
Belying the spectacular success of solid organ transplantation and improvements in immunosuppressive therapy is the reality that long-term graft survival rates remain relatively unchanged, in large part due to chronic and insidious alloantibody-mediated graft injury. Half of heart transplant recipients develop chronic rejection within 10 years — a daunting statistic, particularly for young patients expecting to achieve longevity by enduring the rigors of a transplant. The current immunosuppressive pharmacopeia is relatively ineffective in preventing late alloantibody-associated chronic rejection. In this issue of theJCI, Kelishadi et al. report that preemptive deletion of B cells prior to heart transplantation in cynomolgus monkeys, in addition to conventional posttransplant immunosuppressive therapy with cyclosporine, markedly attenuated not only acute graft rejection but also alloantibody elaboration and chronic graft rejection. The success of this preemptive strike implies a central role for B cells in graft rejection, and this approach may help to delay or prevent chronic rejection after solid organ transplantation.
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