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Impaired Function of Bone Marrow Mesenchymal Stem Cells from Immune Thrombocytopenia Patients in Inducing Regulatory Dendritic Cell Differentiation Through the Notch-1/Jagged-1 Signaling Pathway

机译:骨髓间充质干细胞从免疫血小板减少症患者抑制调控性树突式细胞分化通过Notch-1 / Jagged-1信号通路的功能受损

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摘要

Immune thrombocytopenia (ITP) is an autoimmune disease in which dendritic cells (DCs) play a crucial role in the breakdown of self-tolerance. Studies have identified the function of mesenchymal stem cells (MSCs) in promoting the development of regulatory DCs (regDCs). Our previous work revealed that MSCs in ITP exerted senescence, apoptosis, and impaired immunosuppressive effects on T and B cells. However, it is unclear whether the effects of MSCs on regDC induction are altered in ITP. Our data demonstrated that MSCs in ITP were impaired in inhibiting CD1a(+) DC and CD14(+) DC differentiation from CD34(+) hematopoietic progenitor cells (CD34(+) HPCs). DCs differentiated with MSCs in ITP exhibited an increased expression of costimulatory molecules CD80/CD86 and secretion of proinflammatory interleukin-12 (IL-12). Accordingly, the tolerogenic characteristics were deficient in DCs induced by MSCs in ITP. DCs differentiated with MSCs in ITP exhibited an impaired ability to inhibit CD3(+) T cell proliferation, to suppress T helper (Th)1 cell differentiation, and to induce anergic and regulatory T cells (Tregs). The expression of Notch signaling components was measured in MSCs in ITP. Reduced expression of the ligand Jagged-1, the receptor Notch-1 intracellular domain (NICD-1), and the target gene Hes-1 was identified in MSCs in ITP. The addition of biologically active Jagged-1 to CD34(+) HPCs was observed to promote regDC differentiation. When cultured on Jagged-1-coated plates, MSCs in ITP showed an enhancement of the Notch-1 pathway activation, Jagged-1 expression, and the function in inducing regDCs. Pretreatment with all-trans retinoic acid (ATRA) was found to partially restore the capacity of MSCs in both ITP patients and healthy controls in inducing CD34(+)-derived regDCs. Our data elucidated that MSCs in ITP were impaired in inducing CD34(+)-regDCs, associated with the Notch-1/Jagged-1 signaling pathway. ATRA could partially correct the impairment of MSCs, suggesting that ATRA could serve as a potential therapeutic alternative for ITP.
机译:免疫血小板减少症(ITP)是一种自身免疫性疾病,其中树突细胞(DCS)在自耐受的分解中发挥着至关重要的作用。研究已经确定了间充质干细胞(MSCs)在促进调节DCS(REGDC)的发育方面的功能。我们以前的工作透露,ITP中的MSCs在T衰老,凋亡和免疫抑制作用对T和B细胞的影响受损。但是,目前尚不清楚MSCS对RegDC诱导的影响是否在ITP中改变。我们的数据证明ITP中的MSCs在抑制CD34(+)造血祖细胞(CD34(+)HPCs)的CD1a(+)DC和CD14(+)DC分化中受损。与ITP中的MSCs分化的DCS表现出增强的共刺激分子CD80 / CD86表达和促炎白细胞介素-12(IL-12)的分泌。因此,ITP中MSCs诱导的DC缺乏耐受性特征。与ITP中的MSCs分化的DC表现出抑制CD3(+)T细胞增殖的损害能力,以抑制T辅助剂(TH)1细胞分化,并诱导干燥剂和调节T细胞(Tregs)。在ITP中的MSC中测量缺口信号传导组分的表达。减少配体锯齿-1,受体Notch-1细胞内结构域(NicD-1)的表达,并在ITP中的MSC中鉴定了靶基因HES-1。观察到添加生物活性锯齿状-1至CD34(+)HPC以促进RegDC分化。当在锯齿状-1涂层板上培养时,ITP中的MSCs显示出诱导Notch-1途径激活,锯齿状-1表达和诱导RegDC的功能的增强。发现所有反式视黄酸(ATRA)的预处理是在ITP患者和诱导CD34(+)衍生的RegDC中的ITP患者和健康对照中的MSCs中的能力部分恢复MSCs的能力。我们的数据阐明了ITP中的MSCs在诱导CD34(+) - RegDCs,与Notch-1 / Jagged-1信号传导途径相关的CD34(+)regDC。 ATRA可以部分纠正MSC的减值,这表明ATRA可以作为ITP的潜在治疗替代品。

著录项

  • 来源
    《Stem cells and development》 |2017年第22期|共14页
  • 作者单位

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

    Peking Univ Peoples Hosp Inst Hematol 11 Xizhimen South St Beijing 100044 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 基础医学;
  • 关键词

    immune thrombocytopenia; mesenchymal stem cells; regulatory dendritic cells; notch signaling pathway; all-trans retinoic acid;

    机译:免疫血小板减少;间充质干细胞;调控性树突状细胞;缺口信号通路;全反式视黄酸;

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