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White matter injury restoration after stem cell administration in subcortical ischemic stroke

AutorOtero-Ortega, Laura; Gutiérrez-Fernández, María; Navarro Hernanz, Teresa; López, Juan A.; Cerdán, Sebastián ; Díez-Tejedor, Exuperio
Fecha de publicación2015
EditorBioMed Central
CitaciónStem Cell Research and Therapy 6(1): 121 (2015)
Resumen[Introduction]: An animal model of subcortical ischemic stroke with white matter affectation was induced in rats by injection of endothelin-1. At 24 hours, 2 × 10 6 ADMSC were administered intravenously to the treatment group. Functional evaluation, lesion size, fiber tract integrity, cell death, proliferation, white matter repair markers (Olig-2, NF, and MBP) and NogoA were all studied after sacrifice (7 days and 28 days). ADMSC migration and implantation in the brain as well as proteomics analysis and functions of the secretome were also analyzed. [Results]: Neither ADMSC migration nor implantation to the brain was observed after ADMSC administration. In contrast, ADMSC implantation was detected in peripheral organs. The treatment group showed a smaller functional deficit, smaller lesion area, less cell death, more oligodendrocyte proliferation, more white matter connectivity and higher amounts of myelin formation. The treated animals also showed higher levels of white matter-associated markers in the injured area than the control group. Proteomics analysis of the ADMSC secretome identified 2,416 proteins, not all of them previously described to be involved in brain plasticity. [Conclusions]: White matter integrity in subcortical stroke is in part restored by ADMSC treatment; this is mediated by repair molecular factors implicated in axonal sprouting, remyelination and oligodendrogenesis. These findings are associated with improved functional recovery after stroke.
DescripciónThis is an Open Access article distributed under the terms of the Creative Commons Attribution License.-- et al.
Versión del editorhttp://dx.doi.org/10.1186/s13287-015-0111-4
URIhttp://hdl.handle.net/10261/124641
DOI10.1186/s13287-015-0111-4
Identificadoresdoi: 10.1186/s13287-015-0111-4
e-issn: 1757-6512
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