Effect of the treatment of focal brain ablation in rat with bone marrow mesenchymal stromal cells on sensorimotor recovery and cytokine production

Abstract Increased efficacy of the multipotent mesenchymal stromal cells (MSCs) for the treatment of CNS injuries has been shown when they are administrated within a collagen scaffold, an environment in three dimensions (3D), when compared to the cultivation over a plastic surface (2D). We evaluated...

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Published in:Journal of the neurological sciences 2015-01, Vol.348 (1), p.166-173
Main Authors: de Freitas, Helder Teixeira, Rebel, Mariana Gomes, Coelho, Bárbara Paula, da Silva, Viviane Gomes, Galaxe-Almeida, Gisela Garcia Cabral, Giraldi-Guimarães, Arthur
Format: Article
Language:English
Subjects:
Animals
Behavior, Animal - physiology
Bone Marrow
Brain Injuries - therapy
Brain injury
Cell therapy
Cerebral cortex
Collagen
Collagen scaffold
Cytokines - blood
Functional recovery
Male
Mesenchymal Stem Cell Transplantation - methods
Mesenchymal stem cells
Movement - physiology
Neurology
Rats
Rats, Wistar
Recovery of Function - physiology
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Summary:Abstract Increased efficacy of the multipotent mesenchymal stromal cells (MSCs) for the treatment of CNS injuries has been shown when they are administrated within a collagen scaffold, an environment in three dimensions (3D), when compared to the cultivation over a plastic surface (2D). We evaluated the MSC therapeutic effect in the 2D and 3D conditions using the model of focal cortical ablation. Male Wistar rats were submitted to the ablation by aspiration. Intravenous injection (IV) of MSC cultured in 2D, and the intralesional administration (IL) of MSC cultured in 2D or 3D were tested. Administrations were made 24 h after ablation. Unskilled and skilled forelimb movements were evaluated by sensorimotor tests. The level of cytokines was measured two days after ablation in the 2D IV groups. Only the MSC 3D IL promoted recovery of the skilled movements. MSC 2D IV promoted recovery of the unskilled movements in all tests, and the MSC 3D IL promoted it only in the adhesive test. MSC 2D IL was unable to promote any recovery. DAPI-stained MSC was found in the perilesional parenchyma at the third post-ablation day after 2D and 3D IL. A significant reduction in the levels of cytokines by the MSC 2D IV was observed in the plasma. Our study strengthens the evidences of the MSC as a prospective therapeutic approach for the CNS injuries.
ISSN:0022-510X
1878-5883
DOI:10.1016/j.jns.2014.11.032