Protein transduction method for cerebrovascular disorders

Tomoyuki Ogawa, Shigeki Ono, Tomotsugu Ichikawa, Seiji Arimitsu, Keisuke Onoda, Koji Tokunaga, Kenji Sugiu, Kazuhito Tomizawa, Hideki Matsui, Isao Date

Research output: Contribution to journalReview articlepeer-review

5 Citations (Scopus)


Many studies have shown that a motif of 11 consecutive arginines (11R) is one of the most effective protein transduction domains (PTD) for introducing proteins into the cell membrane. By conjugating this "11R", all sorts of proteins can effectively and harmlessly be transferred into any kind of cell. We therefore examined the transduction efficiency of 11R in cerebral arteries and obtained results showing that 11R fused enhanced green fluorescent protein (11R-EGFP) immediately and effectively penetrated all layers of the rat basilar artery (BA), especially the tunica media. This method provides a revolutionary approach to cerebral arteries and ours is the first study to demonstrate the successful transductionof a PTD fused protein into the cerebral arteries. In this review, we present an outline of our studies and other key studies related to cerebral vasospasm and 11R, problems to be overcome, and predictions regarding future use of the 11R protein transduction method for cerebral vasospasm (CV).

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalActa medica Okayama
Issue number1
Publication statusPublished - Feb 2009


  • 11 consecutive arginines (11R)
  • Cerebral vasospasm
  • Enhanced green fluorescent protein (EGFP)

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)


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