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首页> 外文期刊>Cellular immunology >Comparison of immunomodulatory properties of mesenchymal stem cells derived from adult human tissues.
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Comparison of immunomodulatory properties of mesenchymal stem cells derived from adult human tissues.

机译:成人组织间充质干细胞免疫调节特性的比较。

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Mesenchymal stem cells (MSCs), which evoke only minimal immune reactivity, may have anti-inflammatory and immunomodulatory effects. In this study, we conducted a comparative analysis of the immunomodulatory properties of MSCs derived from adult human tissues including bone marrow (BM), adipose tissues (AT), umbilical cord blood (CB), and cord Wharton's jelly (WJ). Using a multiple cytokine detection assay, we showed that there were no significant differences in levels of secreted factors from non-stimulated MSCs. We compared the immunosuppressive effect of BM-MSCs, AT-MSCs, CB-MSCs, and WJ-MSCs on phytohemagglutinin-induced T-cell proliferation. AT-MSCs, CB-MSCs, and WJ-MSCs effectively suppressed mitogen-induced T-cell proliferation as effectively as did BM-MSCs. Levels of interferon (IFN)-gamma and tumor necrosis factor (TNF)-alpha secreted from activated T-cells increased over time, but these levels were significantly reduced when cocultured with each type of MSCs. In addition, the expression of hepatocyte growth factor, IL-10, transforming growth factor-beta(1), cyclooxygenase (COX)-1, and COX-2 were unchanged in MSCs treated with IFN-gamma and/or TNF-alpha, while indoleamine 2,3-dioxygenase (IDO) expression increased. IFN-gamma and/or TNF-alpha produced by activated T-cells were correlated with induction of IDO expression by MSCs, which, in turn, suppressed T-cell proliferation. These findings suggest that MSCs derived from AT, CB, or WJ could be substituted for BM-MSCs for treatment of allogeneic conflicts.
机译:间质干细胞(MSCs)仅引起最小的免疫反应,可能具有抗炎和免疫调节作用。在这项研究中,我们对源自成年人类组织(包括骨髓(BM),脂肪组织(AT),脐带血(CB)和脐带沃顿氏胶冻(WJ))的MSC的免疫调节特性进行了比较分析。使用多细胞因子检测测定法,我们显示来自非刺激的MSC的分泌因子水平没有显着差异。我们比较了BM-MSC,AT-MSC,CB-MSC和WJ-MSC对植物血凝素诱导的T细胞增殖的免疫抑制作用。 AT-MSC,CB-MSC和WJ-MSC与BM-MSC一样有效抑制丝裂原诱导的T细胞增殖。从活化的T细胞分泌的干扰素(IFN)-γ和肿瘤坏死因子(TNF)-α的水平随时间增加,但与每种类型的MSC共培养时,这些水平显着降低。此外,在用IFN-γ和/或TNF-α处理的MSC中,肝细胞生长因子,IL-10,转化生长因子-β(1),环氧合酶(COX)-1和COX-2的表达没有变化,而吲哚胺2,3-二加氧酶(IDO)的表达增加。活化的T细胞产生的IFN-γ和/或TNF-α与MSC诱导IDO表达相关,从而抑制了T细胞增殖。这些发现表明,源自AT,CB或WJ的MSC可以替代BM-MSC来治疗同种异体冲突。

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