Classification and prediction of survival in patients with the leukemic phase of cutaneous T cell lymphoma.

Classification and prediction of survival in patients with the leukemic phase of cutaneous T cell lymphoma.
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皮肤T细胞淋巴瘤白血病阶段患者的生存分类和预测。

DOI:
10.1084/jem.20021726
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发表时间:
2003-06-02
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Showe LC
Showe LC
中科院分区:
其他
文献类型:
--
作者:
Kari L;Loboda A;Nebozhyn M;Rook AH;Vonderheid EC;Nichols C;Virok D;Chang C;Horng WH;Johnston J;Wysocka M;Showe MK;Showe LC

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我们已经使用cDNA阵列研究白血病形式的皮肤T细胞淋巴瘤,主要是塞扎里综合征(SS)患者外周血单核细胞的基因表达模式。当通过学生t检验比较具有高血液肿瘤负荷(Sezary细胞>60%的淋巴细胞)的患者和健康对照的表达数据时,在P < 0.01,我们发现385个基因差异表达。高度过表达的基因包括Th 2细胞特异性转录因子加塔-3和Jun B,以及整联蛋白β1、蛋白聚糖2、Rho B癌基因和双特异性磷酸酶1。高度低表达的基因包括CD 26、Stat-4和IL-1受体。通常不在淋巴组织中表达的质体蛋白-T的信使仅在患者样本中检测到,并且可能提供用于诊断的新标记物。使用惩罚判别分析,我们已经确定了一组8个基因,可以区分SS患者的循环肿瘤细胞少至5%。这表明,即使在疾病早期,Sezary细胞产生趋化因子和细胞因子,诱导外周血中的表达谱与SS不同。最后,我们表明,使用10个基因,我们可以确定一类患者谁将在六个月内死亡的采样,无论他们的肿瘤负荷。
We have used cDNA arrays to investigate gene expression patterns in peripheral blood mononuclear cells from patients with leukemic forms of cutaneous T cell lymphoma, primarily Sezary syndrome (SS). When expression data for patients with high blood tumor burden (Sezary cells >60% of the lymphocytes) and healthy controls are compared by Student's t test, at P < 0.01, we find 385 genes to be differentially expressed. Highly overexpressed genes include Th2 cells–specific transcription factors Gata-3 and Jun B, as well as integrin β1, proteoglycan 2, the RhoB oncogene, and dual specificity phosphatase 1. Highly underexpressed genes include CD26, Stat-4, and the IL-1 receptors. Message for plastin-T, not normally expressed in lymphoid tissue, is detected only in patient samples and may provide a new marker for diagnosis. Using penalized discriminant analysis, we have identified a panel of eight genes that can distinguish SS in patients with as few as 5% circulating tumor cells. This suggests that, even in early disease, Sezary cells produce chemokines and cytokines that induce an expression profile in the peripheral blood distinctive to SS. Finally, we show that using 10 genes, we can identify a class of patients who will succumb within six months of sampling regardless of their tumor burden.
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