A function for IL-7R for CD4+CD25+Foxp3+ T regulatory cells.
A function for IL-7R for CD4+CD25+Foxp3+ T regulatory cells.
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DOI:
10.4049/jimmunol.181.1.225
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发表时间:
2008-07-01
期刊:
影响因子:
--
通讯作者:
Malek TR
中科院分区:
文献类型:
--
作者:
Bayer AL;Lee JY;de la Barrera A;Surh CD;Malek TR
The IL-2/IL-2R interaction is important for development and peripheral homeostasis of T regulatory (Treg) cells. IL-2- and IL-2R-deficient mice are not completely devoid of Foxp3+ cells, but rather lack population of mature CD4+CD25+Foxp3high Treg cells and contain few immature CD4+CD25negFoxp3low T cells. Interestingly, γc knockout mice have been shown to have a near complete absence of Foxp3+ Treg cells, including the immature CD25negFoxp3low subset. Therefore, other γc-cytokine(s) must be critically important during thymic development of CD4+CD25+Foxp3+ Treg cells apart from the IL-2. The present study was undertaken to determine whether the γc-cytokines IL-7 or IL-15 normally contribute to expression of Foxp3 and Treg cell production. These studies revealed that mice double deficient in IL-2Rβ and IL-7Rα contained a striking lack in the CD4+Foxp3+ population and the Treg cell defect recapitulated the γc knockout mice. In the absence of IL-7R signaling, IL-15/IL-15 interaction is dispensable for the production of CD4+CD25+Foxp3+ Treg cells, indicating that normal thymic Treg cell production likely depends on signaling through both IL-2 and IL-7 receptors. Selective thymic reconstitution of IL-2Rβ in mice double deficient in IL-2Rβ and IL-7Rα established that IL-2Rβ is dominant and sufficient to restore production of Treg cells. Furthermore, the survival of peripheral CD4+Foxp3low cells in IL-2Rβ−/− mice appears to depend upon IL-7R signaling. Collectively, these data indicate that IL-7R signaling contributes to Treg cell development and peripheral homeostasis.
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影响因子:
3
作者:
Jiang, Qi;Su, Hua;Knudsen, Geoffry;Helms, Whitney;Su, Lishan
通讯作者:
Su, Lishan
DOI:
10.1084/jem.20060772
发表时间:
2006-07-10
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
通讯作者:
--
影响因子:
15.3
作者:
Bayer, AL;Yu, AX;Adeegbe, D;Malek, TR
通讯作者:
Malek, TR
影响因子:
4.4
作者:
Burchill, Matthew A.;Yang, Jianying;Farrar, Michael A.
通讯作者:
Farrar, Michael A.
影响因子:
4.4
作者:
POWRIE, F;LEACH, MW;COFFMAN, RL
通讯作者:
COFFMAN, RL