Vascular protection and restorative therapy in ischemic stroke

Toru Yamashita, Kentaro Deguchi, Shoko Nagotani, Koji Abe

Research output: Contribution to journalReview articlepeer-review

29 Citations (Scopus)


Possible strategies for treating stroke include: 1) thrombolytic therapy with tissue plasminogen activator (tPA): restoring cerebral blood flow in the acute phase of ischemic stroke but sometimes causing hemorrhagic transformation (HT); 2) stem cell therapy: the repair of disrupted neuronal networks with newly born neurons in the chronic phase of ischemic stroke. Firstly, we estimated the vascular protective effect of a free radical scavenger, edaravone, in the tPA-treated rat model of middle cerebral artery occlusion. Edaravone prevented dramatically decreased the hemorrhagic transformation and improved the neurologic score and survival rate of tPA-treated rats. Secondly, we attempted to restore brain tissue using a novel biomaterial, polydimethysiloxane- tetraethoxysilane (PDMS-TEOS) hybrid with or without vascular endothelial growth factor (VEGF), and we could show that implantation of a PDMS-TEOS scaffold with VEGF might be effective for treating old brain infarction or trauma. In the future, we will combine these strategies to develop more effective therapies for treatment of strokes.

Original languageEnglish
Pages (from-to)95-97
Number of pages3
JournalCell Transplantation
Issue number1
Publication statusPublished - 2011


  • Cerebral ischemia
  • Free radicals
  • Neural stem cells
  • Scaffold
  • Tissue plasminogen activator (tPA)

ASJC Scopus subject areas

  • Biomedical Engineering
  • Cell Biology
  • Transplantation


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