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Neuroprotective effects and magnetic resonance imaging of mesenchymal stem cells labeled with SPION in a rat model of Huntington's disease
Journal article   Peer reviewed

Neuroprotective effects and magnetic resonance imaging of mesenchymal stem cells labeled with SPION in a rat model of Huntington's disease

Louise Moraes, Andreia Vasconcelos-dos-Santos, Fernando Cleber Santana, Mariana Araya Godoy, Paulo Henrique Rosado-de-Castro, Jasmin, Ricardo Luiz Azevedo-Pereira, Wagner Monteiro Cintra, Emerson Leandro Gasparetto, Marcelo Felippe Santiago, …
Stem cell research, Vol.9(2), pp.143-155
09/01/2012
DOI: 10.1016/j.scr.2012.05.005
PMID: 22742973

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Abstract

Bone marrow mesenchymal stem cells (MSC) have been tested and proven effective in some neurodegenerative diseases, but their tracking after transplantation may be challenging. Our group has previously demonstrated the feasibility and biosafety of rat MSC labeling with iron oxide superparamagnetic nanoparticles (SPION). In this study, we investigated the therapeutic potential of SPION-labeled MSC in a rat model of Huntington's disease, a genetic degenerative disease with characteristic deletion of striatal GABAergic neurons. MSC labeled with SPION were injected into the striatum 1 h after quinolinic acid injection. FJ-C analysis demonstrated that MSC transplantation significantly decreased the number of degenerating neurons in the damaged striatum 7 days after lesion. In this period, MSC transplantation enhanced the striatal expression of FGF-2 but did not affect subventricular zone proliferation, as demonstrated by Ki67 proliferation assay. In addition, MSC transplantation significantly reduced the ventriculomegaly in the lesioned brain. MRI and histological techniques detected the presence of the SPION-labeled cells at the lesion site. SPION-labeled MSC produced magnetic resonance imaging (MRI) signals that were visible for at least 60 days after transplantation. Our data highlight the potential of adult MSC to reduce brain damage under neurodegenerative diseases and indicate the use of nanoparticles in cell tracking, supporting their potential as valuable tools for cell therapy. (C) 2012 Elsevier B.V. All rights reserved.
Biotechnology & Applied Microbiology Cell & Tissue Engineering Cell Biology Life Sciences & Biomedicine Science & Technology

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