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首页> 外文期刊>Cytokine >Interferon-alpha and interleukin-6 in SLE serum induce the differentiation and maturation of dendritic cells derived from CD34+ hematopoietic precursor cells.
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Interferon-alpha and interleukin-6 in SLE serum induce the differentiation and maturation of dendritic cells derived from CD34+ hematopoietic precursor cells.

机译:SLE血清中的干扰素-α和白介素-6诱导源自CD34 +造血前体细胞的树突状细胞的分化和成熟。

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摘要

The objective of this study was to investigate the effects of the cytokines IFN-alpha, IL-6 and IL-10 present in the serum of systemic lupus erythematosus (SLE) patients on the differentiation and maturation of DCs derived from CD34(+) hematopoietic precursor cells (HPCs). CD34(+) HPCs cultured in SLE serum containing elevated levels of IFN-alpha or IL-6 differentiated into DCs showing an increased expression of HLA-DR, CD80 and CD86, decreased IL-12 secretion along with increased IL-10 production, and an increased ability to stimulate allogenic T-cell proliferation, compared with DCs cultured in normal serum. DCs cultured with high levels of IFN-alpha increased the proportion of both CD3(+)CD8(-)IFN-gamma(+) and CD3(+)CD8(+)IFN-gamma(+) T-cell subsets, and increased the production of IFN-gamma in the allogenic MLR. DCs cultured with high levels of IL-6 decreased the proportion of both IFN-gamma(+) T-cell subsets, and decreased the secretion of IFN-gamma, but increased the production of IL-10. The IL-10 present in SLE serum did not significantly alter the phenotype or function of the DCs. IFN-alpha and IL-6 present in SLE serum induce CD34(+) HPCs to differentiate into DCs with different regulatory effects on T-cell differentiation, which might be involved in the initiation and maintenance of SLE.
机译:这项研究的目的是调查系统性红斑狼疮(SLE)患者血清中存在的细胞因子IFN-α,IL-6和IL-10对CD34(+)造血细胞DC分化和成熟的影响前体细胞(HPC)。在含有升高水平的IFN-α或IL-6的SLE血清中培养的CD34(+)HPC分化为DC,显示HLA-DR,CD80和CD86的表达增加,IL-12分泌减少以及IL-10产生增加,以及与在正常血清中培养的DC相比,刺激同种异体T细胞增殖的能力增强。 DCs用高水平的IFN-α培养可增加CD3(+)CD8(-)IFN-γ(+)和CD3(+)CD8(+)IFN-γ(+)T细胞亚群的比例,并增加异体MLR中IFN-γ的产生。用高水平的IL-6培养的DC降低了两种IFN-γ(+)T细胞亚群的比例,并降低了IFN-γ的分泌,但增加了IL-10的产生。 SLE血清中存在的IL-10没有显着改变DC的表型或功能。 SLE血清中存在的IFN-α和IL-6诱导CD34(+)HPC分化为对T细胞分化具有不同调节作用的DC,这可能与SLE的启动和维持有关。

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