論文

査読有り 筆頭著者 国際誌
2017年10月

NSI-189, a small molecule with neurogenic properties, exerts behavioral, and neurostructural benefits in stroke rats.

Journal of cellular physiology
  • Naoki Tajiri
  • David M Quach
  • Yuji Kaneko
  • Stephanie Wu
  • David Lee
  • Tina Lam
  • Ken L Hayama
  • Thomas G Hazel
  • Karl Johe
  • Michael C Wu
  • Cesar V Borlongan
  • 全て表示

232
10
開始ページ
2731
終了ページ
2740
記述言語
英語
掲載種別
DOI
10.1002/jcp.25847

Enhancing neurogenesis may be a powerful stroke therapy. Here, we tested in a rat model of ischemic stroke the beneficial effects of NSI-189, an orally active, new molecular entity (mol. wt. 366) with enhanced neurogenic activity, and indicated as an anti-depressant drug in a clinical trial (Fava et al., , Molecular Psychiatry, DOI: 10.1038/mp.2015.178) and being tested in a Phase 2 efficacy trial (ClinicalTrials.gov, , ClinicalTrials.gov Identifier: NCT02695472) for treatment of major depression. Oral administration of NSI-189 in adult Sprague-Dawley rats starting at 6 hr after middle cerebral artery occlusion, and daily thereafter over the next 12 weeks resulted in significant amelioration of stroke-induced motor and neurological deficits, which was maintained up to 24 weeks post-stroke. Histopathological assessment of stroke brains from NSI-189-treated animals revealed significant increments in neurite outgrowth as evidenced by MAP2 immunoreactivity that was prominently detected in the hippocampus and partially in the cortex. These results suggest NSI-189 actively stimulated remodeling of the stroke brain. Parallel in vitro studies further probed this remodeling process and demonstrated that oxygen glucose deprivation and reperfusion (OGD/R) initiated typical cell death processes, which were reversed by NSI-189 treatment characterized by significant attenuation of OGD/R-mediated hippocampal cell death and increased Ki67 and MAP2 expression, coupled with upregulation of neurogenic factors such as BDNF and SCF. These findings support the use of oral NSI-189 as a therapeutic agent well beyond the initial 6-hr time window to accelerate and enhance the overall functional improvement in the initial 6 months post stroke.

リンク情報
DOI
https://doi.org/10.1002/jcp.25847
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/28181668
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5518191
ID情報
  • DOI : 10.1002/jcp.25847
  • ISSN : 0021-9541
  • PubMed ID : 28181668
  • PubMed Central 記事ID : PMC5518191

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