Astrocytic thrombin-evoked VEGF release is dependent on p44/42 MAPKs and PAR1.
Biochem Biophys Res Commun
; 509(2): 585-589, 2019 02 05.
Article
em En
| MEDLINE
| ID: mdl-30606478
ABSTRACT
Intracerebral haemorrhage (ICH) often causes severe neurological deficits in survived patients, although its underlying mechanisms remain elusive. A common feature of ICH is the accumulation of thrombin around the lesion site. Previous studies showed that thrombin promotes VEGF release and angiogenesis at a late stage post ICH [1]. In current study, we explored the source for thrombin-induced VEGF release by adding thrombin or its receptor agonist peptide to the neuronal or astrocytic primarily cultures. We identified that astrocytes specifically respond to thrombin by up-regulating and releasing VEGF. Furthermore, such release is dependent on p44/42 MAPKs and PAR1, a thrombin specific receptor. Our study therefore helps clarifying the underlying mechanisms of thrombin-induced VEGF release in ICH, which will further provide novel insights into the designing principles for treating ICH and traumatic brain injuries.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Trombina
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Astrócitos
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Proteína Quinase 1 Ativada por Mitógeno
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Fator A de Crescimento do Endotélio Vascular
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Receptor PAR-1
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Proteína Quinase 3 Ativada por Mitógeno
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article