Cited by 103Mesenchymal stem cell researchParkinson's Disease Mechanisms and TreatmentsNerve injury and regeneration

Bone Marrow Mesenchymal Stem Cells' Secretome Exerts Neuroprotective Effects in a Parkinson's Disease Rat Model

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Mendes-Pinheiro, Bárbara, Anjo, Sandra I., Manadas, Bruno, Da Silva, Jorge D., Marote, Ana, Behie, Leo A., Teixeira, Fábio G., Salgado, António J.·2019·Frontiers in Bioengineering and Biotechnology

Abstract

Parkinson’s disease (PD) is characterized by a selective loss of dopamine (DA) neurons in the human midbrain causing motor dysfunctions. The exact mechanism behind dopaminergic cell death is still not completely understood and, so far, no cure or neuroprotective treatment for PD is available. Recent studies have brought attention to the wide array of bioactive molecules produced by mesenchymal stem cells (MSCs), generally referred to as the secretome. Herein, we evaluated whether human MSCs-bone marrow derived (hBMSCs) secretome would be beneficial in a PD pre-clinical model, when compared directly with cell transplantation of hBMSCs alone. We used a 6-hydroxydpomanie (6-OHDA) rat PD model, and motor behavior was evaluated at different time points after treatments (1, 4 and 7 weeks). The impact of the treatments in the recovery of DA neurons was estimated by determining TH-positive neuronal densities in the substantia nigra and fibers in the striatum, respectively, at the end of the behavioral characterization. Furthermore, we determined the effect of the hBMSCs secretome on the neuronal survival of human neural progenitors in vitro, and characterized the secretome through proteomic-based approaches. This work demonstrates that the injection of hBMSCs secretome potentiated the histological recovery of DA neurons, when compared to transplantation of hBMSCs themselves, a fact that probably explains the improved behavioral performance of secretome-injected animals in the staircase test. Moreover, we observed that hBMSCs secretome induces higher levels of in vitro neuronal differentiation. Finally, the proteomic analysis revealed that hBMSCs secrete a variety of important exosome-related molecules such as those related with the ubiquitin-proteasome and histone systems. Overall, this work provided important insights on the potential use of hBMSCs secretome as a therapeutic tool for PD, and further confirms the importance of the secreted molecules rather than the transplantation of hBMSCs for the observed positive effects. These could be likely through normalization of defective processes in PD, namely proteostasis or altered gene transcription, which lately can lead to neuroprotective effects.

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Crossref · 10.3389/fbioe.2019.00294

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  • Administration of hBM-MSC-derived secretome significantly reduces dopaminergic loss in substantia nigra and striatum in 6-OHDA animal models.

    “Regarding Parkinsońs disease, studies with 6-hydroxydopamine (6-OHDA) animal models revealed that the administration of hBM-MSC-derived secretome significantly reduced dopaminergic loss in substantia nigra and striatum.”

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  1. Paxinos G. Watson C. (2007). The Rat Brain in Stereotaxic Coordinates. 6th Edn. Amsterdam; Boston, MA: Elsevier.

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Authors
Mendes-Pinheiro, B., Anjo, S. I., Manadas, B., Da Silva, J. D., Marote, A., Behie, L. A., Teixeira, F. G., & Salgado, A. J.
Affiliations
  • University of Minho (PT)
  • Centro de Neurociências e Biologia Celular (PT)
  • University of Calgary (CA)
Corresponding author
Salgado, António J.
Venue
Frontiers in Bioengineering and Biotechnology
Published
2019-11-01
Volume
7
Pages
294-294
ISSN
2296-4185 (ISSN-L)
OpenAlex
W2988721710
Cited by
103
References
69
Citations by year
2026: 4 · 2025: 17 · 2024: 9 · 2023: 15 · 2022: 22 · 2021: 19 · 2020: 15 · 2019: 1 · 2018: 1
FWCI
7.81
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Bioengineering and Biotechnology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Universidade do Minho
  • Fundação para a Ciência e a Tecnologia (01-0145, POCI-01-0145, POCI- 01-0145-FEDER-029751, POCI-01- 0145-FEDER-016428., POCI‐01‐0145‐FEDER‐007038, SFRH/BPD/118408/2016, POCI-01-0145-FEDER-, POCI-01-0145-FEDER-032619, IF/00111, IF/00111/2013, PTDC/NEU-SCC/7051/2014, SFRH/BD/120124/2016, POCI-01-0145-FEDER-029311, POCI-01-, POCI-01-0145-FEDER-016795, SAICTPAC/0010/2015, SFRH/BD/120124/)
Topics
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
Keywords
Parkinson's disease, bone marrow mesenchymal stem cells, secretome, neuroprotection, dopaminergic neuron loss, cell transplantation, exosomes, proteomics, neuronal differentiation, substantia nigra, striatum, ubiquitin-proteasome system, proteostasis, staircase test

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