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.
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DOI:
10.4049/jimmunol.1302886
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发表时间:
2014-04-01
期刊:
影响因子:
--
通讯作者:
Sykes M
中科院分区:
文献类型:
--
作者:
Kalscheuer H;Onoe T;Dahmani A;Li HW;Hölzl M;Yamada K;Sykes M
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.
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影响因子:
32.4
作者:
Ernst, B;Lee, DS;Surh, CD
通讯作者:
Surh, CD
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
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
影响因子:
6.2
作者:
Devos, Timothy;Sprangers, Ben;Billiau, An D.
通讯作者:
Billiau, An D.