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.
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DOI:
10.1016/j.immuni.2012.05.030
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发表时间:
2012-09-21
期刊:
影响因子:
32.4
通讯作者:
Strasser A
中科院分区:
文献类型:
--
作者:
Gray DH;Kupresanin F;Berzins SP;Herold MJ;O'Reilly LA;Bouillet P;Strasser A
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.
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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:
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通讯作者:
Benoist C
影响因子:
15.3
作者:
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通讯作者:
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发表时间:
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期刊:
The Journal of experimental medicine
影响因子:
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作者:
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通讯作者:
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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:
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期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Gallegos AM;Bevan MJ
通讯作者:
Bevan MJ