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Characterization of IL-17-producing Treg cells in type 2 diabetes patients.
Immunologic Research ( IF 3.3 ) Pub Date : 2019-10-01 , DOI: 10.1007/s12026-019-09095-7
Lei Zhu 1 , Haihan Song 2 , Li Zhang 1 , Haiyan Meng 3
Affiliation  

The association between type 2 diabetes (T2D) pathogenesis and immune-mediated tissue damage and insulin resistance suggests that T2D patients might benefit from the suppression of pathogenic inflammation. Foxp3+ Treg cells are crucial suppressors of inflammation, but the differentiation of Foxp3+ Treg cells is not static and is subject to conversion into IL-17-producing Th17-like cells upon receiving external signals. In this study, we examined the production of IL-17 by Treg cells. Compared to non-T2D controls, T2D patients presented significantly higher levels of IL-17-expressing cells in both Foxp3- CD4 T cells and Foxp3+ Treg cells. The frequencies of IL-17-nonexpressing Foxp3+ Treg cells, on the other hand, were not changed. Interestingly, IL-17-expressing Foxp3+ Treg cells were mutually exclusive from IL-10-expressing and TGF-β-expressing Foxp3+ Treg cells, suggesting that multiple subpopulations exist within the Foxp3+ Treg cells from T2D patients. In T2D patients, the frequencies of IL-17-expressing Foxp3+ Treg cells were positively correlated with the body mass index (BMI) and the HbA1c levels of T2D patients. The frequencies of IL-10-expressing Treg cells, on the other hand, were inversely associated with the BMI of both non-T2D controls and T2D patients. In addition, the suppressive activity of Treg cells was significantly lower in T2D patients than in non-T2D controls. Together, our study uncovered a dysregulation in Foxp3+ Treg cells from T2D patients, characterized by high IL-17 expression and low suppression activity.

中文翻译:

2型糖尿病患者中产生IL-17的Treg细胞的特征。

2型糖尿病(T2D)发病机制与免疫介导的组织损伤和胰岛素抵抗之间的关联表明,T2D患者可能受益于病原性炎症的抑制。Foxp3 + Treg细胞是炎症的关键抑制因子,但是Foxp3 + Treg细胞的分化不是静态的,在接受外部信号后会转化为产生IL-17的Th17样细胞。在这项研究中,我们检查了Treg细胞产生的IL-17。与非T2D对照相比,T2D患者在Foxp3- CD4 T细胞和Foxp3 + Treg细胞中均表现出明显更高的IL-17表达细胞水平。另一方面,不表达IL-17的Foxp3 + Treg细胞的频率没有改变。有趣的是 表达IL-17的Foxp3 + Treg细胞与表达IL-10-的TGF-β和表达TGF-β的Foxp3 + Treg细胞互斥,这表明来自T2D患者的Foxp3 + Treg细胞内存在多个亚群。在T2D患者中,表达IL-17的Foxp3 + Treg细胞的频率与T2D患者的体重指数(BMI)和HbA1c水平呈正相关。另一方面,IL-10表达的Treg细胞的频率与非T2D对照和T2D患者的BMI呈负相关。另外,在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照中。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。这表明来自T2D患者的Foxp3 + Treg细胞内存在多个亚群。在T2D患者中,表达IL-17的Foxp3 + Treg细胞的频率与T2D患者的体重指数(BMI)和HbA1c水平呈正相关。另一方面,IL-10表达的Treg细胞的频率与非T2D对照和T2D患者的BMI呈负相关。另外,在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照中。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。这表明来自T2D患者的Foxp3 + Treg细胞内存在多个亚群。在T2D患者中,表达IL-17的Foxp3 + Treg细胞的频率与T2D患者的体重指数(BMI)和HbA1c水平呈正相关。另一方面,IL-10表达的Treg细胞的频率与非T2D对照和T2D患者的BMI呈负相关。另外,在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照中。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。IL-17表达的Foxp3 + Treg细胞的频率与T2D患者的体重指数(BMI)和HbA1c水平呈正相关。另一方面,IL-10表达的Treg细胞的频率与非T2D对照和T2D患者的BMI呈负相关。另外,在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照中。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。IL-17表达的Foxp3 + Treg细胞的频率与T2D患者的体重指数(BMI)和HbA1c水平呈正相关。另一方面,IL-10表达的Treg细胞的频率与非T2D对照和T2D患者的BMI呈负相关。另外,在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照中。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。在T2D患者中,Treg细胞的抑制活性明显低于非T2D对照。在一起,我们的研究发现了来自T2D患者的Foxp3 + Treg细胞失调,其特征在于高IL-17表达和低抑制活性。
更新日期:2019-11-01
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