Connexin 43 signaling enhances the generation of Foxp3+ regulatory T cells.
Connexin 43 signaling enhances the generation of Foxp3+ regulatory T cells.
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DOI:
10.4049/jimmunol.1003785
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发表时间:
2011-07-01
期刊:
影响因子:
--
通讯作者:
Kraj P
中科院分区:
文献类型:
--
作者:
Kuczma M;Lee JR;Kraj P
Despite their importance for the functioning of the immune system, thymic development and peripheral maintenance of Foxp3+ regulatory (TR) cells are poorly understood. We have found that connexin 43 (C×43), expressed by thymic TR cells progenitors, supports TR development. Mice with deletion of the C×43 gene induced in T cells produce only very few TR cells and had elevated proportion of activated T cells in the lymph nodes suggesting impaired peripheral tolerance. Reduction of the TR cell numbers was accompanied by increased presence of CD4+CD25+GITR+Foxp3− T cells which did not produce inflammatory cytokines and lost suppressor function. These results strongly argue that we have discovered a novel signaling pathway, controlled by C×43, that enhances the generation of TR cells. We propose that a possible mechanism of C×43 activity is by regulating Foxp3 expression in TR lineage cells.
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DOI:
10.1186/1478-811x-7-4
发表时间:
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期刊:
Cell communication and signaling : CCS
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