Transgenic expression of HuR increases vasogenic edema and impedes functional recovery in rodent ischemic stroke.
Neurosci Lett
; 661: 126-131, 2017 Nov 20.
Article
em En
| MEDLINE
| ID: mdl-28982595
ABSTRACT
BACKGROUND AND PURPOSE:
Ischemic stroke produces significant morbidity and mortality, and acute interventions are limited by short therapeutic windows. Novel approaches to neuroprotection and neurorepair are necessary. HuR is an RNA-binding protein (RBP) which modulates RNA stability and translational efficiency of genes linked to ischemic stroke injury.METHODS:
Using a transgenic (Tg) mouse model, we examined the impact of ectopic HuR expression in astrocytes on acute injury evolution after transient middle cerebral artery occlusion (tMCAO).RESULTS:
HuR transgene expression was detected in astrocytes in perilesional regions and contralaterally. HuR Tg mice did not improve neurologically 72h after injury, whereas littermate controls did. In Tg mice, increased cerebral vascular permeability and edema were observed. Infarct volume was not affected by the presence of the transgene.CONCLUSIONS:
Ectopic expression of HuR in astrocytes worsens outcome after transient ischemic stroke in mice in part by increasing vasogenic cerebral edema. These findings suggest that HuR could be a therapeutic target in cerebral ischemia/reperfusion.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Edema Encefálico
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Isquemia Encefálica
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Recuperação de Função Fisiológica
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Infarto da Artéria Cerebral Média
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Proteína Semelhante a ELAV 1
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article