Regulation gone wrong: a subset of Sézary patients have malignant regulatory T cells.

Regulation gone wrong: a subset of Sézary patients have malignant regulatory T cells.
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DOI:
10.1038/jid.2009.290
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发表时间:
2009-12
期刊:
The Journal of investigative dermatology
影响因子:
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通讯作者:
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中科院分区:
其他
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皮肤T细胞淋巴瘤是一组异质性的非霍奇金淋巴瘤,来源于T细胞的群体,家庭和居住在皮肤。关于CTCL是否可能代表调节性T细胞的恶性肿瘤,一种可以抑制局部免疫反应的特定T细胞亚群,有相互矛盾的报道。在本期JID中,作者Heid等人提出了令人信服的证据,证明Sézary患者特定亚组中的恶性T细胞是FOXP3+调节性T细胞。这些患者中的克隆性恶性T细胞具有Treg相关转录因子FOXP3的表达增加,FOXP3基因座的去甲基化,并且来自这些患者中的至少一些的T细胞可以在体外抑制T细胞增殖。
Cutaneous T cell lymphomas are a heterogeneous group of non-Hodgkin’s lymphomas derived from the population of T cells that home to and inhabit the skin. There have been conflicting reports as to whether CTCL may represent a malignancy of regulatory T cells, a particular T cell subset that can suppress local immune reactions. In this issue of the JID, authors Heid et al. present convincing evidence that the malignant T cells in a specific subgroup of Sézary patients are FOXP3+ regulatory T cells. Clonal malignant T cells in these patients have increased expression of the Treg associated transcription factor FOXP3, demethylation of the FOXP3 gene locus, and T cells from at least some of these patients could suppress T cell proliferation in vitro.
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