Journal
TRANSLATIONAL STROKE RESEARCH
Volume 6, Issue 4, Pages 301-308Publisher
SPRINGER
DOI: 10.1007/s12975-015-0401-2
Keywords
Stroke; VGF; Photothrombosis; Ischemia
Categories
Funding
- Japan Society for the Promotion of Science [25461267]
- Grants-in-Aid for Scientific Research [25461267] Funding Source: KAKEN
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Ischemic stroke is a devastating neural event as currently no therapies other than physical rehabilitation are available to enhance recovery after stroke. To identify endogenous mediators to repair stroke brain, we performed the expression profiling analysis of transcripts in the mouse photothrombotic stroke brain. Based on real-time PCR analysis, we found VGF, identified as a nerve growth factor (NGF)-regulated transcript, was induced transcriptionally in stroke brain at 1-7 days after insult. The immunoreactivites of VGF were observed in the neurons around the ischemic core of stroke brain. Experiments with various inhibitors and plasmid transfections indicated that cAMP response element binding protein-mediated complex signaling pathways are possibly implicated in the NGF-mediated VGF expressions in vitro. Furthermore, the over-expression of VGF promoted neurite extensions and conferred protections from ischemic stress in vitro. These findings raise the possibility the application of VGF could be one of the promising therapeutic strategies to enhance recovery after stroke.
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