同种异体器官移植联合造血干细胞移植与免疫耐受

Organ aliografts combined with hematopoietic stem cell transplantation and immunotolerance

过去10年,我们对移植免疫排斥机制的理解有了很大提高.在一些同种异体器官移植联合造血干细胞移植的病例,不用免疫抑制剂治疗,受体对移植物仍然保持长期免疫耐受,有作者把这一耐受现象归功于联合了造血干细胞移植.本文就从对这些案例的分析出发,回顾同种异体器官移植后供体特异性移植耐受形成的理论基础和历史沿革,最后阐明供体特异性移植耐受与造血干细胞移植之间并没有直接联系.

Our understanding of the immunological mechanisms of rejection has greatly improved over the past 10 years. The allografts have maintained long survival without immunosuppressive treatment in the several organ-transplant recipients combined with hematopoietic stem cell transplantation. The authors attributed the successful outcome to the cotransplantation of donor stem cells. The review will analyze firstly conditions of the recipients, and then review the theoretical basis and history regarding donor-specific tolerance of allograft, and it will also clarify that there is no direct link between the donor-specific transplantation tolerance and hematopoietic stem cell transplantation.