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Granulocyte colony-stimulating factor improves alternative activation of microglia under microenvironment of spinal cord injury.

Abstract：

:Granulocyte colony-stimulating factor (G-CSF) was investigated in the present study to examine whether it could affect the activation status of microglia under microenvironment of spinal cord injury and provide a potential therapeutic treatment for spinal cord injury. We established mouse spinal cord hemisection model and injected recombinant human G-CSF (rhG-CSF) subcutaneously. The results demonstrated that G-CSF could recruit microglia to the injury site in the first 72h after spinal cord injury. Moreover, G-CSF inhibits the expression of pro-inflammatory factors and promotes the expression of neurotrophic factors. Additionally, G-CSF also increases the expression of markers of M2 macrophage and inhibits the expression of markers of M1 macrophage in BV2 microglia in vitro model, favoring the M2 polarization of microglia under the microenvironment of spinal cord hemisection. NFκB signal pathway was involved in G-CSF-induced polarization of BV2 microglia. As a conclusion, we suggested that administration of G-CSF within the first 72h after spinal cord injury might reduce early inflammation-induced detrimental effect and promote an anti-inflammatory response that favors repair via improving alternative activation of microglia. Administration of G-CSF in the acute phase of spinal cord injury may be a promising strategy in restorative therapy after spinal cord injury.

journal_name

Neuroscience

journal_title

Neuroscience

authors

Guo Y,Zhang H,Yang J,Liu S,Bing L,Gao J,Hao A

doi

10.1016/j.neuroscience.2013.01.047

subject

Has Abstract

pub_date

2013-05-15 00:00:00

pages

1-10

eissn

0306-4522

issn

1873-7544

pii

S0306-4522(13)00084-5

journal_volume

238

pub_type

杂志文章

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