VGF, Which Is Induced Transcriptionally in Stroke Brain, Enhances Neurite Extension and Confers Protection Against Ischemia In Vitro.

Abstract:

: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.

journal_name

Transl Stroke Res

authors

Sakamoto M,Miyazaki Y,Kitajo K,Yamaguchi A

doi

10.1007/s12975-015-0401-2

subject

Has Abstract

pub_date

2015-08-01 00:00:00

pages

301-8

issue

4

eissn

1868-4483

issn

1868-601X

journal_volume

6

pub_type

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