Suppression by T(FR) cells leads to durable and selective inhibition of B cell effector function.

Suppression by T(FR) cells leads to durable and selective inhibition of B cell effector function.
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DOI:
10.1038/ni.3578
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发表时间:
2016-12
期刊:
影响因子:
30.5
通讯作者:
Sharpe AH
Sharpe AH
中科院分区:
医学1区
文献类型:
--
作者:
Sage PT;Ron-Harel N;Juneja VR;Sen DR;Maleri S;Sungnak W;Kuchroo VK;Haining WN;Chevrier N;Haigis M;Sharpe AH

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T滤泡调节(TFR)细胞抑制T滤泡辅助(TFH)细胞介导的抗体产生。TFR细胞发挥其关键免疫调节功能的机制在很大程度上是未知的。本研究表明,TFR细胞在TFH和B细胞中诱导出一种明显的抑制状态,在这种状态下,效应物的转录特征得到维持,但关键的效应物分子和代谢途径被抑制。TFR细胞对B细胞抗体产生和代谢的抑制是持久的,即使在没有TFR细胞的情况下也持续存在。这种持久的抑制部分是由于表观遗传变化。IL-21可以克服TFR细胞介导的抑制,抑制TFR细胞,刺激B细胞。通过确定TFR细胞介导的抑制机制,我们已经确定了调节TFR细胞功能和抗体产生的方法。
T follicular regulatory (TFR) cells inhibit T follicular helper (TFH) cell-mediated antibody production. The mechanisms by which TFR cells exert their key immunoregulatory functions are largely unknown. Here we show that TFR cells induce a distinct suppressive state in TFH and B cells, in which effector transcriptional signatures are maintained, but key effector molecules and metabolic pathways are suppressed. TFR cell suppression of B cell antibody production and metabolism is durable, and persists even in the absence of TFR cells. This durable suppression is due, in part, to epigenetic changes. IL-21 can overcome TFR cell-mediated suppression, inhibiting TFR cells and stimulating B cells. By determining mechanisms of TFR cell-mediated suppression, we have identified methods for modulating TFR cell function and antibody production.
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