Circulating and tumor-infiltrating Foxp3⁺ regulatory T cell subset in Chinese patients with extranodal NK/T cell lymphoma.

Circulating and tumor-infiltrating Foxp3⁺ regulatory T cell subset in Chinese patients with extranodal NK/T cell lymphoma.
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中国结外 NK/T 细胞淋巴瘤患者的循环和肿瘤浸润性 Foxp3™ 调节性 T 细胞亚群。

DOI:
10.7150/ijbs.7.1027
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发表时间:
2011
影响因子:
9.2
通讯作者:
Li J
Li J
中科院分区:
生物学2区
文献类型:
--
作者:
Peng RJ;Huang ZF;Zhang YL;Yuan ZY;Xia Y;Jiang WQ;Zeng YX;Li J

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相似文献

Foxp 3+调节性T淋巴细胞(Tlymphocyte,Tlymphocyte)通常作为一种免疫抑制因子,与恶性肿瘤的生存率降低相关。本研究旨在探讨淋巴结NK/T细胞淋巴瘤(ENKTL)患者外周血单个核细胞(PBMCs)和肿瘤组织中Foxp 3+亚群的分布及特点。结果表明,外周血单个核细胞Foxp 3+亚群的百分率显著高于健康人(P<0.001)。Foxp 3+亚群表达CD 45 RO、CTLA 4、GITR、CCR 7,具有IL-10高IFN γ+TGFβ+IL-2低IL-17低细胞因子分泌表型。有趣的是,在ENKTL中发现了EBV抗原特异性的CD 8 + Foxp 3 + T细胞的存在。此外,Foxp 3 + TIL的高密度与ENKTL患者的无进展生存期(PFS)改善相关(P<0.05)。总的来说,我们的研究表明,EBV抗原可以诱导ENKTL中的抗原特异性CD 8 + Foxp 3 + TILs,并且Foxp 3 + TILs是ENKTL中PFS的独立因素。
Foxp3+ regulatory T lymphocytes (Tregs) usually act as an immune suppressor and correlate with poorer survival in malignancies. This study aims to investigate the distribution and characterization of Foxp3+ subset in peripheral blood mononuclear cells (PBMCs) and tumor tissues from extranodal NK/T cell lymphoma (ENKTL). Our study showed the percentage of Foxp3+ subset from PBMC was significantly higher than that of healthy individuals (P<0.001). The Foxp3+ subset from PBMCs expressed CD45RO, CTLA4, GITR, CCR7, and had an IL-10highIFNγ+TGFβ+IL-2lowIL-17low cytokine secreting phenotype. Interestingly, the existence of EBV antigen-specific CD8+Foxp3+ Tregs was discovered in ENKTL. Furthermore, the high density of Foxp3+ TILs was associated with improved progression-free survival (PFS) in ENKTL patients (P<0.05). Collectively, our study implicates that EBV antigens could induce antigen-specific CD8+Foxp3+ Tregs in ENKTL, and Foxp3+ TILs is an independent factor for PFS in ENKTL.
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