TGF-beta-induced Foxp3+ regulatory T cells rescue scurfy mice.

TGF-beta-induced Foxp3+ regulatory T cells rescue scurfy mice.
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DOI:
10.1002/eji.200838346
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发表时间:
2008-07
影响因子:
5.4
通讯作者:
Shevach, Ethan M.
Shevach, Ethan M.
中科院分区:
医学3区
文献类型:
--
作者:
Huter, Eva N.;Punkosdy, George A.;Glass, Deborah D.;Cheng, Lily I.;Ward, Jerrold M.;Shevach, Ethan M.

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Scurfy 小鼠的 Foxp3 叉头结构域存在缺失,无法发育出胸腺来源的 Foxp3+ 调节性 T 细胞 (nTreg),并出现伴有多器官炎症的致命性淋巴增殖综合征。将胸腺来源的 Foxp3+ nTreg 转移到新生 Scurfy 小鼠体内可预防疾病的发展。在 TGFβ 和 IL-2 存在的情况下,通过 TCR 刺激常规 CD4+Foxp3− 可诱导 Foxp3 的表达和无能/抑制表型。为了确定 TGFβ 诱导的 Treg (iTR) 是否能够抑制 Scurfy 小鼠的疾病,我们用多克隆 iTR 重建了新生 Scurfy 小鼠。与未经治疗的 Scurfy 对照相比,经过 iTR 治疗的 Scurfy 小鼠没有表现出任何疾病迹象,并且外周淋巴结和脾脏中的细胞数量大幅减少。 iTR 在体内保留 FoxP3 的表达 21 天,迁移到皮肤中,并阻止皮肤、肝脏和肺部炎症的发展。因此,TGFβ 分化的 Foxp3+ Treg 似乎拥有胸腺来源的 nTreg 的所有功能特性,并代表了自身免疫和炎症疾病细胞免疫治疗的有效群体。
Scurfy mice have a deletion in the forkhead domain of Foxp3, fail to develop thymic-derived Foxp3+ regulatory T cells (nTreg), and develop a fatal lymphoproliferative syndrome with multi-organ inflammation. Transfer of thymic-derived Foxp3+ nTreg into neonatal Scurfy mice prevents the development of disease. Stimulation of conventional CD4+Foxp3− via the TCR in the presence of TGFβ and IL-2 induces the expression of Foxp3 and an anergic/suppressive phenotype. To determine whether the TGFβ-induced Treg (iTR) were capable of suppressing disease in the Scurfy mouse, we reconstituted newborn Scurfy mice with polyclonal iTR. iTR-treated Scurfy mice do not show any signs of disease and have drastically reduced cell numbers in peripheral lymph nodes and spleen in comparison to untreated Scurfy controls. The iTR retained their expression of FoxP3 in vivo for 21 days, migrated into the skin, and prevented the development of inflammation in skin, liver and lung. Thus, TGFβ-differentiated Foxp3+ Treg appear to possess all of the functional properties of thymic-derived nTreg and represent a potent population for the cellular immunotherapy of autoimmune and inflammatory diseases.
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