Xenograft tolerance and immune function of human T cells developing in pig thymus xenografts.

Xenograft tolerance and immune function of human T cells developing in pig thymus xenografts.
复制标题

DOI:
10.4049/jimmunol.1302886
复制
发表时间:
2014-04-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
通讯作者:
Sykes M
Sykes M
中科院分区:
其他
文献类型:
--
作者:
Kalscheuer H;Onoe T;Dahmani A;Li HW;Hölzl M;Yamada K;Sykes M

文献摘要

参考文献

被引文献

相似文献

异种胸腺组织移植可以在高度不同的猪到鼠模型中诱导异种移植耐受。胎猪胸腺(SWTHY)在体外可以支持多种人类T细胞谱系的产生,并且对猪具有耐受性。我们在这里展示了SWTHY在接受相同人类CD34+细胞的免疫缺陷小鼠中产生的所有人类T细胞亚群,包括Tregs,其数量与人胸腺(HU THY)移植的数量相似。外周T细胞对小鼠、人和猪的捐赠者具有特异性的耐受性,对非捐赠者的人和猪的抗原有强烈的反应。特异性耐受性是观察到的猪皮肤移植物共享你的供体MHC。外周Tregs的功能相似,但幼稚类型Tregs所占比例低于Hu Tregs。Tregs有助于供体-猪的特异性耐受。在西南地区产生的外周人类T细胞显示CD8+T细胞比例降低,淋巴细胞减少驱动的增殖和记忆型转化,记忆型细胞加速衰退,对蛋白质抗原的反应减少。因此,胸腺移植是一种有效的人类T细胞异种耐受方法。然而,免疫功能可以通过允许通过自体HLA分子进行积极选择的策略来进一步增强。
Transplantation of xenogeneic thymus tissue allows xenograft tolerance induction in the highly disparate pig-to-mouse model. Fetal swine thymus (SW THY) can support generation of a diverse human T cell repertoire that is tolerant of the pig in vitro. We demonstrate here that SW THY generates all human T cell subsets, including Tregs, in similar numbers as human thymus (HU THY) grafts in immunodeficient mice receiving the same human CD34+ cells. Peripheral T cells are specifically tolerant to the mouse and to the human and porcine donors, with robust responses to non-donor human and pig antigens. Specific tolerance is observed to pig skin grafts sharing the THY donor MHC. SW THY-generated peripheral Tregs show similar function, but include lower percentages of naïve-type Tregs compared to HU THY-genereated Tregs. Tregs contribute to donor-pig specific tolerance. Peripheral human T cells generated in SW THY exhibit reduced proportions of CD8+ T cells and reduced lymphopenia-driven proliferation and memory-type conversion, accelerated decay of memory-type cells and reduced responses to protein antigens. Thus, SW thymus transplantation is a powerful xenotolerance approach for human T cells. However, immune function may be further enhanced by strategies to permit positive selection by autologous HLA molecules.
DOI: 10.1016/s1074-7613(00)80092-8
发表时间: 1999-08-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Ernst, B;Lee, DS;Surh, CD
通讯作者: Surh, CD
人T细胞的稳态膨胀和表型转化取决于与APC的外周相互作用。
DOI: 10.4049/jimmunol.0901711
发表时间: 2010-06-15
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Onoe T;Kalscheuer H;Chittenden M;Zhao G;Yang YG;Sykes M
通讯作者: Sykes M
人CD25(+)CD4(+)T调节细胞抑制幼稚和记忆T细胞增殖,可以在体外扩展而不会失去功能。
DOI: 10.1084/jem.193.11.1295
发表时间: 2001-06-04
影响因子: 15.3
作者:
Levings, M K;Sangregorio, R;Roncarolo, M G
通讯作者: Roncarolo, M G
DOI: 10.1084/jem.186.8.1223
发表时间: 1997-10-20
期刊: The Journal of experimental medicine
影响因子: --
作者:
Brocker T
通讯作者: Brocker T
DOI: 10.1097/tp.0b013e3181613f0c
发表时间: 2008-02-27
期刊: TRANSPLANTATION
影响因子: 6.2
作者:
Devos, Timothy;Sprangers, Ben;Billiau, An D.
通讯作者: Billiau, An D.