Induced regulatory T cells: mechanisms of conversion and suppressive potential.
Induced regulatory T cells: mechanisms of conversion and suppressive potential.
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DOI:
10.1016/j.humimm.2011.12.011
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发表时间:
2012-04
期刊:
影响因子:
2.7
通讯作者:
Thomson, Angus W.
中科院分区:
文献类型:
--
作者:
Dons, Eefje M.;Raimondi, Giorgio;Cooper, David K. C.;Thomson, Angus W.
关键词:
Thymus-derived, naturally-occurring CD4+ FoxP3+ regulatory T cells (nTreg) have suppressive activity that is important for the establishment and maintenance of immune homeostasis in the healthy state. Abundant reports have shown that they can suppress pathogenic processes in autoimmune diseases and inhibit transplant rejection and graft-versus-host disease. Far less is known about induced regulatory T cells (iTreg) that are generated from naïve T cells in the periphery or in vitro, by directing naïve T cells to acquire suppressive function under the influence of transforming growth factor-β (TGF-β) and other factors. In this review, we describe mechanisms by which naïve T cells are thought to be converted into iTreg. We also discuss the suppressive potential of iTreg, particularly in comparison to their naturally-occurring counterparts, focusing on those reports in which direct comparisons have been made. Based on current knowledge, we consider the rationale for using iTreg versus nTreg in clinical trials.
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