CD4+ but not CD8+ cells are essential for allorejection.

CD4+ but not CD8+ cells are essential for allorejection.
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DOI:
10.1084/jem.184.5.2013
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发表时间:
1996-11-01
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Fathman CG
Fathman CG
中科院分区:
其他
文献类型:
--
作者:
Krieger NR;Yin DP;Fathman CG

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具有靶向基因破坏的基因敲除小鼠的产生为研究免疫应答提供了有价值的工具。在这里,我们描述了使用CD4和CD8基因敲除小鼠来研究CD4+和CD8+细胞在引发同种异体移植排斥反应中的作用。短暂的抗CD4单克隆抗体耗竭疗法的预处理允许心脏永久存活,但不是皮肤,同种异体移植物穿过主要组织相容性屏障移植。然而,皮肤和心脏移植物在CD4敲除小鼠中被永久接受。在皮肤移植前1天将CD4+细胞转移到CD4敲除受体小鼠中重建排斥反应,表明CD4+细胞是启动同种异体移植排斥反应所必需的。移植到CD8基因敲除受者体内的主要组织相容性复合物异种心脏和皮肤移植物在10 d内发生排斥反应。这项研究表明,CD4+ T细胞,而不是CD8+ T细胞是绝对需要启动同种异体移植排斥反应。
The generation of knockout mice with targeted gene disruption has provided a valuable tool for studying the immune response. Here we describe the use of CD4 and CD8 knockout mice to examine the role of CD4+ and CD8+ cells in initiating allotransplantation rejection. Pretreatment with a brief course of depletive anti-CD4 monoclonal antibody therapy allowed permanent survival of heart, but not skin, allografts transplanted across a major histocompatibility barrier. However, skin as well as heart grafts were permanently accepted in the CD4 knockout mice. Transfer of CD4+ cells into CD4 knockout recipient mice 1 d before skin engraftment reconstituted rejection, demonstrating that CD4+ cells are necessary for initiating rejection of allogeneic transplants. Major histocompatibility complex disparate heart and skin allografts transplanted into CD8 knockout recipients were rejected within 10 d. This study demonstrates that CD4+ but not CD8+ T cells are absolutely required to initiate allograft rejection.
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