P-JAK2 and P-STAT3 protein expression and cell apoptosis following focal cerebral ischemia-reperfusion injury in rats / 南方医科大学学报
Journal of Southern Medical University
;
(12): 208-218, 2007.
Article
Dans Chinois
| WPRIM
| ID: wpr-298203
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the changes in phosphorylated JAK2 and STAT3 protein expression of and cell apoptosis following focal cerebral ischemia-reperfusion injury in rats.</p><p><b>METHODS</b>A rat models of focal cerebral ischemia-reperfusion injury was established by middle cerebral artery occlusion using modified filament method. Immunohistochemistry and Western blot analysis were used to detect the expression of P-JAK2 and P-STAT3 proteins, and TUNEL assay was employed to examine the cell apoptosis.</p><p><b>RESULTS</b>P-JAK2 and P-STAT3 protein expression increased significantly after cerebral ischemia-reperfusion injury in rats. The immunoreactivity was prominent in the peripheral of the ischemic region and reached the peak level at 24 h of reperfusion, followed by slight decrement. The apoptotic cells increased obviously after cerebral ischemia-reperfusion injury, also reaching the peak level at 24 h of reperfusion.</p><p><b>CONCLUSION</b>The expression of phosphorylated JAK2 and STAT3 may be involved in the ischemic cellular events including apoptosis. JAK2/STAT3 signaling pathway plays a role in the pathophysiological process of cerebral ischemia/reperfusion cell injury and repair.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Phosphorylation
/
Immunohistochimie
/
Lésion d'ischémie-reperfusion
/
Technique de Western
/
Rat Sprague-Dawley
/
Apoptose
/
Méthode TUNEL
/
Infarctus du territoire de l'artère cérébrale moyenne
/
Facteur de transcription STAT-3
/
Kinase Janus-2
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2007
Type:
Article
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