Journal
JOURNAL OF NEUROIMMUNOLOGY
Volume 249, Issue 1-2, Pages 40-48Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jneuroim.2012.04.018
Keywords
Mesenchymal stem cells; Mesenchymal stromal cells; Astrocytes; Inflammation; Lipopolysaccharide; Cytokines
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Funding
- National Fund for Scientific Research (FNRS, Belgium) [7.4.531.06F, 3.4.560.07.F, 1.A198.08]
- DIANE research program
- EURON Marie Curie Fellowship [EURON MEST-CT-2005-020589]
- Televie [7.4.510.09F]
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The therapeutic benefits associated with mesenchymal stem cells (MSCs) largely result from their immunomodulatory and neurotrophic properties. In this study, we evaluated the effects of MSCs on astrocyte cultures exposed to lipopolysaccharide. In response to this inflammatory trigger, astrocytes showed an increased expression of pro-inflammatory genes (IL-1 beta, TNF alpha, IL-6), which was attenuated by pre-exposure to MSC conditioned medium. Furthermore, mediators released by MSCs increased cell proliferation and altered the regulation of intermediate filaments (GFAP, vimentin), pro-inflammatory enzymes (iNOS. COX-2) and receptors (TLR4, CD14, mGluR3, mGluR5). These data demonstrate that MSCs influence diverse cell types participating in the response to neuroinflammation. (C) 2012 Elsevier B.V. All rights reserved.
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