有哪些信誉好的足球投注网站human neural stem cells genetically modified to overexpress akt1 provide neuroprotection and functional improvement in mouse stroke model人类神经干细胞转基因过度表现akt1提供神经保护和功能改善小鼠中风模型.pdfVIP
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human neural stem cells genetically modified to overexpress akt1 provide neuroprotection and functional improvement in mouse stroke model人类神经干细胞转基因过度表现akt1提供神经保护和功能改善小鼠中风模型
Human Neural Stem Cells Genetically Modified to Overexpress Akt1 Provide Neuroprotection and Functional Improvement in Mouse Stroke Model Hong J. Lee1,2., Mi K. Kim1., Hee J. Kim1,3, Seung U. Kim1,2* 1 Division of Neurology, Department of Medicine, UBC Hospital, University of British Columbia, Vancouver, Canada, 2 Medical Research Institute, Chungang University College of Medicine, Seoul, Korea, 3 Department of Pharmacology, Dankook University School of Medicine, Cheonan, Korea Abstract In a previous study, we have shown that human neural stem cells (hNSCs) transplanted in brain of mouse intracerebral hemorrhage (ICH) stroke model selectively migrate to the ICH lesion and induce behavioral recovery. However, low survival rate of grafted hNSCs in the brain precludes long-term therapeutic effect. We hypothesized that hNSCs overexpressing Akt1 transplanted into the lesion site could provide long-term improved survival of hNSCs, and behavioral recovery in mouse ICH model. F3 hNSC was genetically modified with a mouse Akt1 gene using a retroviral vector. F3 hNSCs expressing Akt1 were found to be highly resistant to H O -induced cytotoxicity in vitro. Following transplantation in ICH mouse brain, F3.Akt1 2 2 hNSCs induced behavioral improvement and significantly increased cell survival (50–100% increase) at 2 and 8 weeks post- transplantation as compared to parental F3 hNSCs. Brain transplantation of hNSCs overexpressing Akt1 in ICH animals provided functional recovery, and survival and differentiation of grafted hNSCs. These results indicate that the F3.Akt1 human NSCs should be a great value as a cellular source for the cellular therapy in animal models of human neurological
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