TOX acts an oncological role in mycosis fungoides.

TOX acts an oncological role in mycosis fungoides.
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DOI:
10.1371/journal.pone.0117479
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Sun Q
Sun Q
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Yu X;Luo Y;Liu J;Liu Y;Sun Q

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蕈样肉芽肿 (MF) 是一种低度淋巴瘤,其特征是非典型 CD4+ 皮肤归巢 T 淋巴细胞的克隆扩增。在此,我们研究了胸腺细胞选择相关的 HMG-box (TOX) 在 MF 发病机制中的作用,该基因先前发现在 MF 皮肤活检中不受调节。 TOX 编码高迁移率族家族 (HMG) 结构域 DNA 结合核蛋白,可调节发育中 T 细胞的分化。首先,我们证实,与良性炎症性皮炎(BID)和正常皮肤相比,MF 中的 TOX 表达水平升高。此外,TOX水平随着MF从斑块期进展到肿瘤期而增加。 TOX 的过度表达加速了 MF 细胞系的体外增殖和迁移,而 AKT 抑制剂可阻断这种增殖和迁移。总之,我们的研究证实TOX在MF病灶中高表达并加速MF的增殖和迁移。 TOX 是 MF 的诊断标志物,可能在疾病进展中发挥致病作用。
Mycosis fungoides (MF) is a low-grade lymphoma characterized by clonal expansion of atypical CD4+ skin-homing T lymphocytes. Herein, we examined the role of thymocytes selection associated HMG-box (TOX), a gene previously found to be unregulated in MF skin biopsies, in MF pathogenesis. TOX encodes a high-mobility group family (HMG) domain DNA binding nuclear protein, which regulates the differentiation of developing T-cells. First, we confirmed that TOX expression levels in MF were increased compared with those in benign inflammatory dermatitis (BID) and normal skin. In addition, TOX level increased with the progression MF from patch stage to tumor stage. Overexpression of TOX accelerated the proliferation and migration of MF cell lines in vitro, which were blocked by AKT inhibitors. In conclusion, our study confirmed that TOX was highly expressed in MF lesions and accelerates the proliferation and migration of MF. TOX is a diagnostic marker for MF and may play a pathogenic role in disease progression.
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