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.
Thomson, Angus W.
中科院分区:
医学4区
文献类型:
--
作者:
Dons, Eefje M.;Raimondi, Giorgio;Cooper, David K. C.;Thomson, Angus W.

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胸腺来源的、自然产生的CD4+FoxP3+调节性T细胞(NTreg)具有抑制活性,对于建立和维持健康状态下的免疫动态平衡非常重要。大量报道表明,它们可以抑制自身免疫性疾病的致病过程,抑制移植排斥反应和移植物抗宿主病。诱导调节性T细胞(ITreg)是由外周或体外的幼稚T细胞在转化生长因子-β(转化生长因子-β)和其他因素的影响下,通过引导幼稚T细胞获得抑制功能而产生的,目前还知之甚少。在这篇综述中,我们描述了幼稚T细胞被认为转化为iTreg的机制。我们还讨论了iTreg的抑制潜力,特别是与自然产生的同类产品的比较,重点是那些已经进行了直接比较的报告。根据目前的知识,我们考虑了在临床试验中使用iTreg和nTreg的理由。
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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