The BH3-only proteins Bim and Puma cooperate to impose deletional tolerance of organ-specific antigens.

The BH3-only proteins Bim and Puma cooperate to impose deletional tolerance of organ-specific antigens.
复制标题

DOI:
10.1016/j.immuni.2012.05.030
复制
发表时间:
2012-09-21
期刊:
影响因子:
32.4
通讯作者:
Strasser A
Strasser A
中科院分区:
医学1区
文献类型:
--
作者:
Gray DH;Kupresanin F;Berzins SP;Herold MJ;O'Reilly LA;Bouillet P;Strasser A

文献摘要

参考文献

被引文献

相似文献

尽管仅促凋亡的 BH3 蛋白 Bim 是删除自身反应性胸腺细胞所必需的,但 Bim 缺陷的小鼠不会死于广泛的器官特异性自身免疫性疾病。为了确定其他 BH3-only 蛋白在缺乏 Bim 的情况下是否能保证耐受性,我们筛选了缺乏 Bim 和其他 BH3-only 蛋白的小鼠。大多数品系没有表现出额外的缺陷,然而,同时缺乏 Puma 和 Bim 的小鼠在多个器官中自发产生自身免疫,并且它们的 T 细胞可以转移器官特异性自身免疫。 Puma/Bim 双缺陷小鼠具有显着的成熟单阳性胸腺细胞积累,表明胸腺缺失的进一步缺陷是疾病的基础。外周新抗原胸腺细胞缺失的转基因小鼠模型证实,Bim 和 Puma 的缺失使得更多数量的自身反应性胸腺细胞逃脱缺失。我们的数据显示,Puma 与 Bim 合作,对外周自身抗原施加胸腺缺失检查点,并巩固了仅细胞凋亡缺陷就足以引起自身免疫性疾病的观念。
Although the pro-apoptotic BH3-only protein, Bim, is required for deletion of autoreactive thymocytes, Bim-deficient mice do not succumb to extensive organ-specific autoimmune disease. To determine whether other BH3-only proteins safeguard tolerance in the absence of Bim, we screened mice lacking Bim alongside other BH3-only proteins. Most strains showed no additional defects, however, mice deficient for both Puma and Bim spontaneously developed autoimmunity in multiple organs and their T-cells could transfer organ-specific autoimmunity. Puma/Bim double-deficient mice had a striking accumulation of mature single positive thymocytes, suggesting a further defect in thymic deletion was the basis for disease. Transgenic mouse models of thymocyte deletion to peripheral neo-antigens confirmed that the loss of Bim and Puma allowed increased numbers of autoreactive thymocytes to escape deletion. Our data show that Puma cooperates with Bim to impose a thymic deletion checkpoint to peripheral self-antigens and cement the notion that defects in apoptosis alone are sufficient to cause autoimmune disease.
DOI: 10.1084/jem.20050693
发表时间: 2005-09-19
期刊: The Journal of experimental medicine
影响因子: --
作者:
Jiang W;Anderson MS;Bronson R;Mathis D;Benoist C
通讯作者: Benoist C
胸腺和最近的胸腺移民在维持成年外周淋巴细胞库中的作用。
DOI: 10.1084/jem.187.11.1839
发表时间: 1998-06-01
影响因子: 15.3
作者:
Berzins, S P;Boyd, R L;Miller, J F
通讯作者: Miller, J F
DOI: 10.1084/jem.20070795
发表时间: 2007-10-29
期刊: The Journal of experimental medicine
影响因子: --
作者:
Gray D;Abramson J;Benoist C;Mathis D
通讯作者: Mathis D
DOI: 10.1126/science.1075958
发表时间: 2002-11-15
期刊: SCIENCE
影响因子: 56.9
作者:
Anderson, MS;Venanzi, ES;Mathis, D
通讯作者: Mathis, D
DOI: 10.1084/jem.20041457
发表时间: 2004-10-18
期刊: The Journal of experimental medicine
影响因子: --
作者:
Gallegos AM;Bevan MJ
通讯作者: Bevan MJ