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Exosomes derived from mesenchymal stem cells repair a Parkinson’s disease model by inducing autophagy
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Exosomes derived from mesenchymal stem cells repair a Parkinson’s disease model by inducing autophagy
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Exosomes derived from mesenchymal stem cells repair a Parkinson’s disease model by inducing autophagy
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Journal Article
Exosomes derived from mesenchymal stem cells repair a Parkinson’s disease model by inducing autophagy
2020
Overview
Parkinson’s disease (PD) is a progressively debilitating neurodegenerative condition that leads to motor and cognitive dysfunction. At present, clinical treatment can only improve symptoms, but cannot effectively protect dopaminergic neurons. Several reports have demonstrated that human umbilical cord mesenchymal stem cells (hucMSCs) afford neuroprotection, while their application is limited because of their uncontrollable differentiation and other reasons. Stem cells communicate with cells through secreted exosomes (Exos), the present study aimed to explore whether Exos secreted by hucMSCs could function instead of hucMSCs. hucMSCs were successfully isolated and characterized, and shown to contribute to 6-hydroxydopamine (6-OHDA)-stimulated SH-SY5Y cell proliferation; hucMSC-derived Exos were also involved in this process. The Exos were purified and identified, and then labeled with PKH 26, it was found that the Exos could be efficiently taken up by SH-SY5Y cells after 12 h of incubation. Pretreatment with Exos promoted 6-OHDA-stimulated SH-SY5Y cells to proliferate and inhibited apoptosis by inducing autophagy. Furthermore, Exos reached the substantia nigra through the blood–brain barrier (BBB) in vivo, relieved apomorphine-induced asymmetric rotation, reduced substantia nigra dopaminergic neuron loss and apoptosis, and upregulated the level of dopamine in the striatum. These results demonstrate that hucMSCs-Exos have a treatment capability for PD and can traverse the BBB, indicating their potential for the effective treatment of PD.
Publisher
Nature Publishing Group UK,Springer Nature B.V
Subject
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/ Animals
/ Biomedical and Life Sciences
/ Blood-Brain Barrier - physiopathology
/ Dopamine
/ Exosomes
/ Humans
/ Mesenchymal Stem Cells - metabolism
/ Mice
/ Parkinson Disease - genetics
