MURAL - Maynooth University Research Archive Library

    Murine mesenchymal stem cells suppress dendritic cell migration, maturation and antigen presentation

    English, Karen and Barry, Frank P. and Mahon, Bernard P. (2008) Murine mesenchymal stem cells suppress dendritic cell migration, maturation and antigen presentation. Immunology Letters, 115. pp. 50-58.

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    Mesenchymal stem cells (MSC) possess a wide range of immunosuppressive functions. Among these is the ability to inhibit CD4+ T cell proliferation. Dendritic cells (DC) play a role in initiating cell-mediated immunity; however, the immunosuppressive influence of MSC on professional antigen presenting cells remains unclear.DC exposed to TNF- and cultured with murine MSC failed to show regular upregulation of maturation markers. Similarly, the presence of MSC abrogated the capacity of ovalbumin-pulsed DC to support antigen specific CD4+ T cell proliferation, or for DC to display an MHC class II- peptide complex recognizable by specific antibody. Interestingly, culture of MSC with DC resulted in reduced expression of CCR7 by DC following stimulation. Likewise, DC matured in the presence of MSC, showed significantly less migration to CCL19. In contrast, murine MSC prevented loss of expression of the tissue anchoring protein E-cadherin by DC. Modulation of DC maturation and function was not permanent and could be restored after removal of MSC. These data demonstrate that MSC modulate the three cardinal features of DC maturation, providing the first demonstration of MSC interference with DC migration

    Item Type: Article
    Keywords: Mesenchymal stem cell; Dendritic cell; Immunosuppression; CCR7; E-cadherin;
    Academic Unit: Faculty of Science and Engineering > Biology
    Faculty of Science and Engineering > Research Institutes > Institute of Immunology
    Item ID: 1290
    Depositing User: Bernard Mahon
    Date Deposited: 12 Mar 2009 11:57
    Journal or Publication Title: Immunology Letters
    Publisher: Elsevier
    Refereed: Yes
      Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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