Intravenous administration of xenogenic adipose-derived mesenchymal stem cells (ADMSC) and ADMSC-derived exosomes markedly reduced brain infarct volume and preserved neurological function in rat after acute ischemic stroke

Kuan Hung Chen, Chih Hung Chen, Christopher Glenn Wallace, Chun Man Yuen, Gour Shenq Kao, Yi Ling Chen, Pei Lin Shao, Yung Lung Chen, Han Tan Chai, Kun Chen Lin, Chu Feng Liu, Hsueh Wen Chang, Mel S. Lee, Hon Kan Yip*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

196 Scopus citations

Abstract

We tested the hypothesis that combined xenogenic (from mini-pig) adiposederived mesenchymal stem cell (ADMSC) and ADMSC-derived exosome therapy could reduce brain-infarct zone (BIZ) and enhance neurological recovery in rat after acute ischemic stroke (AIS) induced by 50-min left middle cerebral artery occlusion. Adult-male Sprague-Dawley rats (n = 60) were divided equally into group 1 (sham-control), group 2 (AIS), group 3 [AIS-ADMSC (1.2×106 cells)], group 4 [AISexosome (100μg)], and group 5 (AIS-exosome-ADMSC). All therapies were provided intravenously at 3h after AIS procedure. BIZ determined by histopathology (by day- 60) and brain MRI (by day-28) were highest in group 2, lowest in group 1, higher in groups 3 and 4 than in group 5, but they showed no difference between groups 3 and 4 (all p < 0.0001). By day-28, sensorimotor functional results exhibited an opposite pattern to BIZ among the five groups (p < 0.005). Protein expressions of inflammatory (inducible nitric oxide synthase/tumor necrosis factor-a/nuclear factor-κB/interleukin-1β/matrix metalloproteinase-9/plasminogen activator inhibitor-1/RANTES), oxidative-stress (NOX-1/NOX-2/oxidized protein), apoptotic (caspase-3/Poly-ADP-ribose polymerase), and fibrotic (Smad3/transforming growth factor-β) biomarkers, and cellular expressions of brain-damaged (γ-H2AX+/XRCC1-CD90+/p53BP1-CD90+), inflammatory (CD11+/CD68+/glial fibrillary acid protein+) and brain-edema (aquaporin-4+) markers showed a similar pattern of BIZ among the groups (all n < 0.0001). In conclusion, xenogenic ADMSC/ADMSC-derived exosome therapy was safe and offered the additional benefit of reducing BIZ and improving neurological function in rat AIS.

Original languageEnglish
Pages (from-to)74537-74556
Number of pages20
JournalOncotarget
Volume7
Issue number46
DOIs
StatePublished - 2016

Keywords

  • Brain infarct size
  • Exosomes
  • Ischemic stroke
  • Neurological function
  • Pathology Section
  • Xenogenic adipose-derived mesenchymal stem cell

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