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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/14738

Title: Cell Type-Associated Differences in Migration, Survival and Immunogenicity Following Grafting in CNS Tissue
Authors: Praet, Jelle
Reekmans, Kristien
Lin, Dan
De Vocht, Nathalie
Bergwerf, Irene
Tambuyzer, Bart
Daans, Jasmijn
Hens, Niel
Goossens, Herman
Pauwels, Patrick
Berneman, Zwi
Van der Linden, Annemie
Ponsaerts, Peter
Issue Date: 2012
Citation: Cell Transplantation, 21 (9), p. 1867-1881
Abstract: Cell transplantation has been suggested to display several neuroprotective and/or neuroregenerative effects in animal models of central nervous system (CNS) trauma. However, while most studies report on clinical observations, currently little is known regarding the actual fate of the cell populations grafted and whether or how the brain's innate immune system, mainly directed by activated microglia and astrocytes, interacts with autologous cellular implants. In this study, we grafted well-characterized neural stem cell, mouse embryonic fibroblast, dendritic cell, bone marrow mononuclear cell, and splenocyte populations, all isolated or cultured from C57BL/6-eGFP transgenic mice, below the capsula externa (CE) of healthy C57BL/6 mice and below the inflamed/demyelinated CE of cuprizone-treated C57BL/6 mice. Two weeks postgrafting, an extensive quantitative multicolor histological analysis was performed in order (i) to quantify cell graft localization, migration, survival, and toxicity and (ii) to characterize endogenous CNS immune responses against the different cell grafts. Obtained results indicate dependence on the cell type grafted: (i) a different degree of cell graft migration, survival, and toxicity and (ii) a different organization of the endogenous immune response. Based on these observations, we warrant that further research should be undertaken to understand-and eventually control-cell graft-induced tissue damage and activation of the brain's innate immune system. The latter will be inevitable before cell grafting in the CNS can be performed safely and successfully in clinical settings.
URI: http://hdl.handle.net/1942/14738
DOI: 10.3727/096368912X636920
ISI #: 000312431600005
ISSN: 0963-6897
Category: A1
Type: Journal Contribution
Validation: ecoom, 2014
Appears in Collections: Research publications

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