The cleavage effect of mesenchymal stem cell and its derived matrix metalloproteinase-2 on extracellular α-synuclein aggregates in parkinsonian models

Se Hee Oh, Ha Na Kim, Hyun Jung Park, Jin Young Shin, Dong Yeol Kim, Phil Hyu Lee

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Ample evidence has suggested that extracellular α-synuclein aggregates would play key roles in the pathogenesis and progression of Parkinsonian disorders (PDs). In the present study, we investigated whether mesenchymal stem cells (MSCs) and their derived soluble factors could exert neuroprotective effects via proteolysis of extracellularα-synuclein.Whenpreformedα-synuclein aggregates were incubated with MSC-conditioned medium, α-synuclein aggregates were disassembled, and insoluble and oligomeric forms ofα-synuclein were markedly decreased, thus leading to a significant increase in neuronal viability. In an animal study, MSC or MSC-conditioned medium treatment decreased the expression ofα-synuclein oligomers and the induction of pathogenicα-synuclein with an attenuation of apoptotic cell death signaling. Furthermore, we identified that matrix metalloproteinase-2 (MMP-2), a soluble factor derived from MSCs, played an important role in the degradation of extracellular α-synuclein. Our data demonstrated that MSCs and their derivedMMP-2exert neuroprotective properties through proteolysis of aggregated α-synuclein in PD-related microenvironments.

Original languageEnglish
Pages (from-to)949-961
Number of pages13
JournalStem Cells Translational Medicine
Volume6
Issue number3
DOIs
Publication statusPublished - 2017 Mar

All Science Journal Classification (ASJC) codes

  • Developmental Biology
  • Cell Biology

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