Cellular immunology, 2011, Vol.271 (1), p.147-156
2011
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- Autor(en) / Beteiligte
- Titel
- Ligation of TLR2 and TLR4 on murine bone marrow-derived mesenchymal stem cells triggers differential effects on their immunosuppressive activity
- Ist Teil von
- Cellular immunology, 2011, Vol.271 (1), p.147-156
- Ort / Verlag
- Netherlands: Elsevier Inc
- Erscheinungsjahr
- 2011
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- ► We investigated effects of ligation of TLR2 or TLR4 on activity of murine MSC. ► TLR2 ligation, but not TLR4, inhibited chemotaxis of MSC. ► TLR2 ligation, but not TLR4, impaired MSC-mediated immunosuppression on allo-MLR. ► TLR2 activation, but not TLR4, reduced MSC-mediated expansion of Treg cells. ► Compared with TLR4 , TLR2 activation induced lower level of CXCL-10. Mesenchymal stem cells (MSCs) have potent regulatory effects on immune and inflammatory responses. Recently the findings of functional TLR expression on MSC implicates these receptors in the function established for MSCs. Here we specially investigated the effects of TLR2, 4 ligation in mice MSC on migration, modulation of allogeneic mixed lymphocytes reaction (allo-MLR) and inducing Treg cells. We demonstrated that ligation of TLR2, but not TLR4, could significantly inhibit migration of MSC, impair MSC-mediated immunosuppression on allo-MLR, and reduce MSC-mediated expansion of CD4+CD25+Foxp3+ regulatory T cells. Compared with TLR4 activated MSCs and non-TLR activated MSC, TLR2 activation induced a relatively lower level of CXCL-10 mRNA and protein expressions which has been elucidated to act in concert with other soluble factor in MSC-mediated immunomodulation. These data indicate that TLR2 and TLR4 ligation had different effects on immunomodulatory capability of murine BMSCs, which should be considered in their use for treating inflammatory diseases.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0008-8749eISSN: 1090-2163DOI: 10.1016/j.cellimm.2011.06.014Titel-ID: cdi_proquest_miscellaneous_904495412
- Format
- –
- Schlagworte
- Adipocytes - immunology, Adipocytes - metabolism, Allogeneic mixed lymphocytes reaction, Animals, Antigens, Ly - genetics, Antigens, Ly - metabolism, Bone Marrow Cells - immunology, Bone Marrow Cells - metabolism, Cell Movement - immunology, Cell Proliferation, Cells, Cultured, Chemokine CXCL10 - genetics, Chemokine CXCL10 - metabolism, Chemotaxis - drug effects, Chemotaxis - immunology, Cysteine - analogs & derivatives, Cysteine - pharmacology, Dose-Response Relationship, Drug, Flow Cytometry, Lipoproteins - pharmacology, Lymphocyte Activation - immunology, Lymphocyte Culture Test, Mixed, Membrane Proteins - genetics, Membrane Proteins - metabolism, Mesenchymal stem cells, Mesenchymal Stromal Cells - immunology, Mesenchymal Stromal Cells - metabolism, Mice, Mice, Inbred C57BL, Nitric Oxide Synthase Type II - genetics, Nitric Oxide Synthase Type II - metabolism, Osteocytes - immunology, Osteocytes - metabolism, Reverse Transcriptase Polymerase Chain Reaction, T-Lymphocytes, Regulatory - immunology, T-Lymphocytes, Regulatory - metabolism, TLR2, TLR4, Toll-Like Receptor 2 - immunology, Toll-Like Receptor 2 - metabolism, Toll-Like Receptor 4 - immunology, Toll-Like Receptor 4 - metabolism