Journal article Open Access
Intracerebral transplantation of interleukin 13-producing mesenchymal stem cells limits microgliosis, oligodendrocyte loss and demyelination in the cuprizone mouse model
Le Blon, Debbie; Guglielmetti, Caroline; Hoornaert, Chloé; Quarta, Alessandra; Daans, Jasmijn; Dooley, Dearbhaile; Lemmens, Evi; Praet, Jelle; De Vocht, Nathalie; Reekmans, Kristien; Santermans, Eva; Hens, Niel; Goossens, Herman; Verhoye, Marleen; Van der Linden, Annemie; Berneman, Zwi; Hendrix, Sven; Ponsaerts, Peter
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<dct:title>Intracerebral transplantation of interleukin 13-producing mesenchymal stem cells limits microgliosis, oligodendrocyte loss and demyelination in the cuprizone mouse model</dct:title>
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<dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2016</dct:issued>
<dcat:keyword>Interleukin 13</dcat:keyword>
<dcat:keyword>Mesenchymal stem cells</dcat:keyword>
<dcat:keyword>Neuroinflammation</dcat:keyword>
<dcat:keyword>Transplantation</dcat:keyword>
<dcat:keyword>Magnetic resonance imaging</dcat:keyword>
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<dct:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">10.13039/501100000780</dct:identifier>
<foaf:name>European Commission</foaf:name>
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<dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2016-11-09</dct:issued>
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<dct:description><p><strong>Background: </strong>Promoting the neuroprotective and repair-inducing effector functions of microglia and macrophages, by means of M2 polarisation or alternative activation, is expected to become a new therapeutic approach for central nervous system (CNS) disorders in which detrimental pro-inflammatory microglia and/or macrophages display a major contribution to the neuropathology. In this study, we present a novel in vivo approach using intracerebral grafting of mesenchymal stem cells (MSC) genetically engineered to secrete interleukin 13 (IL13-MSC).</p><p><strong>Methods: </strong>In the first experimental setup, control MSC and IL13-MSC were grafted in the CNS of eGFP<sup>+</sup> bone marrow chimaeric C57BL/6 mice to histologically evaluate IL13-mediated expression of several markers associated with alternative activation, including arginase1 and Ym1, on MSC graft-recognising microglia and MSC graft-infiltrating macrophages. In the second experimental setup, IL13-MSC were grafted on the right side (or on both the right and left sides) of the <i>splenium</i> of the <i>corpus callosum</i> in wild-type C57BL/6 mice and in C57BL/6 CX<sub>3</sub>CR1<sup>eGFP/+</sup>CCR2<sup>RFP/+</sup> transgenic mice. Next, CNS inflammation and demyelination was induced by means of a cuprizone-supplemented diet. The influence of IL13-MSC grafting on neuropathological alterations was monitored by non-invasive <i>T</i> <sub>2</sub>-weighted magnetic resonance imaging (MRI) and quantitative histological analyses, as compared to cuprizone-treated mice with control MSC grafts and/or cuprizone-treated mice without MSC injection.</p><p><strong>Results: </strong>In the first part of this study, we demonstrate that MSC graft-associated microglia and MSC graft-infiltrating macrophages are forced into alternative activation upon grafting of IL13-MSC, but not upon grafting of control MSC. In the second part of this study, we demonstrate that grafting of IL13-MSC, in addition to the recruitment of M2 polarised macrophages, limits cuprizone-induced microgliosis, oligodendrocyte death and demyelination. Furthermore, we here demonstrate that injection of IL13-MSC at both sides of the splenium leads to a superior protective effect as compared to a single injection at one side of the splenium.</p><p><strong>Conclusions: </strong>Controlled and localised production of IL13 by means of intracerebral MSC grafting has the potential to modulate cell graft- and pathology-associated microglial/macrophage responses, and to interfere with oligodendrocyte death and demyelinating events in the cuprizone mouse model.</p></dct:description>
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<dct:title>Imaging of Neuroinflammation in Neurodegenerative Diseases</dct:title>
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Indexed in
- Publication date:
- November 9, 2016
- DOI:
-
- Keyword(s):
- Interleukin 13 Mesenchymal stem cells Neuroinflammation Transplantation Magnetic resonance imaging
- Published in:
- Journal of Neuroinflammation: 13 pp. 288 (1).
- Grants:
-
European Commission:
- Communities:
- License (for files):
- Creative Commons Attribution 4.0 International