Foxp3+ regulatory T cells impede the priming of protective CD8+ T cells.
Foxp3+ regulatory T cells impede the priming of protective CD8+ T cells.
复制标题
DOI:
10.4049/jimmunol.1100374
复制
发表时间:
2011-09-01
期刊:
影响因子:
--
通讯作者:
Way SS
中科院分区:
文献类型:
--
作者:
Ertelt JM;Rowe JH;Mysz MA;Singh C;Roychowdhury M;Aguilera MN;Way SS
T cell activation is controlled by incompletely defined opposing stimulation and suppression signals that together sustain the balance between optimal host defense against infection and peripheral tolerance. Herein, we explored the impacts of Foxp3+ regulatory T cell (Treg) suppression in priming antigen-specific T cell activation under non-infection and infection conditions. We find the transient ablation of Foxp3+ Tregs unleashes the robust expansion and activation of peptide stimulated CD8+ T cells that provide protection against Listeria monocytogenes (Lm) infection in an antigen-specific fashion. By contrast, Treg-ablation had non-significant impacts on the CD8+ T cell response primed by infection with recombinant Lm. Similarly, non-recombinant Lm administered with peptide stimulated the expansion and activation of CD8+ T cells that paralleled the response primed by Treg-ablation. Interestingly, these adjuvant properties of Lm did not require CD8+ T cell stimulation by IL-12 produced in response to infection, but instead were associated with sharp reductions in Foxp3+ Treg suppressive potency. Therefore, Foxp3+ Tregs impose critical barriers that when overcome naturally during infection or artificially with ablation allows the priming of protective antigen-specific CD8+ T cells.
登录
查看更多内容
DOI:
10.1084/jem.20021910
发表时间:
2003-05-05
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Curtsinger JM;Lins DC;Mescher MF
通讯作者:
Mescher MF
影响因子:
32.4
作者:
Fontenot, JD;Rasmussen, JP;Rudensky, AY
通讯作者:
Rudensky, AY
影响因子:
7
作者:
Curtsinger JM;Mescher MF
通讯作者:
Mescher MF
影响因子:
48
作者:
Buch, T;Heppner, FL;Waisman, A
通讯作者:
Waisman, A
DOI:
10.1126/science.1183021
发表时间:
2010-01-15
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Iwasaki A;Medzhitov R
通讯作者:
Medzhitov R