外源性IL-10对单核细胞定向分化为树突状细胞的影响
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江苏省自然科学基金资助(BK2004148)


Effect of IL-10 on the differentiation of monocyte-derived dendritic cells
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    摘要:

    目的:研究外源性IL-10对单核来源的树突状细胞(dendritic cells,DCs)的影响,为进一步认识IL-10在系统性红斑狼疮(system lupus erythematosus,SLE)发病机制中的作用提供线索-方法:应用GM-CSF+IL-4+TNF-α体系诱导培养单核细胞来源的DCs,同时在该体系中加入与SLE患者血清浓度相当的外源性IL-10(30 pg/ml)-用流式细胞术检测DCs的表型(CD14-CD11c-CD1a-HLA-DR-CD80-CD86和CD83),CCK-8法检测DCs刺激同种异体淋巴细胞增殖能力,ELISA法检测DCs分泌IL-12p40-IL-10和INF-γ水平-结果:30 pg/ml的外源性IL-10可使单核细胞来源的DCs(monocyte derived-DCs,MDDCs)HLA-DR-CD80-CD86和CD83的表达以及IL-12p40和IFN-γ的分泌水平受到抑制,并使其刺激同种异体T细胞增殖能力下降-结论:外源性IL-10对单核细胞定向分化为DCs产生了抑制作用-进一步证实IL-10在SLE发病机制中发挥了重要作用-

    Abstract:

    Objective:To further investigate the realation between IL-10 and the pathogenesis of SLE. Methods:MDDCs was cultured with 30 pg/ml IL-10 and 0 pg/ml IL-10. The phenotypes of these DCs(CD14,CD11c,CD1a,HLA-DR,CD80,CD86 and CD83) were analyzed by flow cytometer. The stimulating allogenic lymphocytes proliferation abilities of these DCs were checked by CCK-8. ELISA was used to measure IL-12p40,IL-10 and INF-γconcentrations of the MDDCs culture supernatants. Results:The expression of HLA-DR,CD86,CD80 and CD83 of MDDCs cultured with 30 pg/ml IL-10 was lower than that of MDDCs without IL-10. MDDCs treated with 30 pg/ml IL-10 showed decreased abilities of stimulating allogenic T cells proliferation. The IL-12p40,IL-10 and INF-γconcentrations were no significant alteration. Conclusion:Exogenous IL-10 inhibited the differentiation and function of MDDCs. These results further showed that IL-10 plays an important role in the pathogenesis of SLE.

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姜朋涛,邢美芬,张 戎,孙志达,杨晓帆,王慧娟,顾 镭,张缪佳,季晓辉.外源性IL-10对单核细胞定向分化为树突状细胞的影响[J].南京医科大学学报(自然科学版),2008,28(11):1398-1401

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  • 收稿日期:2008-05-29
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