The effects of SOCS3 on neural stem cell fate and feasibility of the SOCS3-overexpressingneural stem cells for stake therapy
Project/Area Number |
18591594
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Cerebral neurosurgery
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Research Institution | Ehime University |
Principal Investigator |
HATA Ryuji Ehime University, Graduate School of Medicine, Associate Professor (90258153)
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Co-Investigator(Kenkyū-buntansha) |
ONISHI Takanori Ehime University, Graduate School of Medicine, Professor (70233210)
KUMON Yoshiaki Ehime University, Graduate School of Medicine, Associate Professor (80127894)
TANAKA Jyunya Ehime University, Graduate School of Medicine, Professor (70217040)
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Project Period (FY) |
2006 – 2007
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Project Status |
Completed (Fiscal Year 2007)
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Budget Amount *help |
¥4,010,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥510,000)
Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
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Keywords | SOCS3 / Cerebral ischemia / Neurogenesis / Neural stem cell / Neurogenesis / cerebral ischemia / neurogenesis / neural stem cell |
Research Abstract |
To investigate the effects of suppressors of cytokine signaling 3 (SOCS3) on neural stem cell fate, stem cells were infected with an adenoviral vector expressing SOCS3. Three days later, western blot analysis and immunocytochemical analysis revealed that the protein level of MAP2 and the number of MAP2-positive cells were significantly increased in SOCS3-transfected cells, while the protein level of GFAP and the number of GFAP-positive cells were significantly decreased. Furthermore, promoter assay revealed a significant reduction in the transcriptional level of signal transducer and activator of transcription 3 (Stat3) in the transfected cells. In addition, the mRNA levels of Notch family member (notchl) and inhibitory bHLH factors (hes5 and id3) were significantly up-regulated at one day after overexpression of SOCS3. At three days after transfection, the mRNA level of hes5 was significantly decreased, while that of notchl was still up-regulated. Moreover, all of SOCS3-positive cells expressed Nestin protein but did not express both MAP2 and GFAP proteins. These data indicate that overexpression of SOCS3 induced neurogenesis and inhibited astrogliogenesis in neural stem cells. Our data also show that SOCS3 promoted maintenance of neural stem cells. Furthermore, we evaluated the feasibility of the SOCS3-overexpressing neural stem cells for stroke therapy. Rats were subjected to focal cerebral ischemia for 60 min. Following reperfusion, neural stem cells over-expressing SOCS3 (1.0 x 10^5/5ul) were injected into common carotid artery. One day later, we evaluated the infarct size by TTC staining. However, there was no difference in infarct volume between the SOCS3-treated group and vehicle-treated group. We are now trying to evaluate other methods to transplant NSC into the brain, although we failed to demonstrate the feasibility SOCS3-overexpressing neural stem cells for stroke therapy this time.
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Report
(3 results)
Research Products
(43 results)
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[Journal Article] Intravenous Infusion of Dihydroginsenoside Rbl Prevents Compressive Spinal Cord Injury and Ischemic Brain Damage through Upregulation of VEGF and Bcl-xL.2007
Author(s)
Sakanaka M, Zhu P, Zhang Bo, Wen TG, Cao F, Ma YJ, Samukawa K, Mitsuda N, Tanaka J, Kuramoto M, Uno H, Hata R.
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Journal Title
Journal of Neurotrauma 24
Pages: 1037-1054
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Hematopoietic stem cells prevent hair cell death after transient cochlear ischemia through paracrine effects2007
Author(s)
Yoshida T, Hakuba N, Morizane I, Fujita K, Cao F, Zhu P, Uchida N, Kameda K, Sakanaka M, Gyo K, Hata R
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Journal Title
Neuroscience 145
Pages: 923-930
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Intravenous Infusion of Dihydroginsenoside Rbl Prevents Compressive Spinal Cord Injury and Ischemic Brain Damage through Upregulation of VEGF and Bcl-xL2007
Author(s)
Sakanaka, M., Zhu, P., Zhang, Bo., Wen, TC., Cao, F., Ma, YJ., Samukawa, K., Mitsuda, N., Tanaka, J., Kuramoto, M., Uno, H., Hata, R
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Journal Title
Journal of Neurotrauma 24
Pages: 1037-1054
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Hematopoietic stem cells prevent hair cell death after transient cochlear ischemia through paracrine effects2007
Author(s)
Yoshida, T., Hakuba, N., Morizane, I., Fujita, K., Cao, F., Zhu, P., Uchida, N., Kameda, K., Sakanaka, M., Gyo, K., Hata, R
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Journal Title
Neuroscience 145
Pages: 923-30
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Ginsenoside Rb1 protects against damage to the spiral ganglion cells after cochlear ischemia2007
Author(s)
Fujita, K., Hakuba, N., Hata, R., Morizane, I., Yoshida, T., Shudou, M., Sakanaka, M., Gyo, K
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Journal Title
Neurosci Lett 415
Pages: 113-7
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Intravenous Infusion of Dihydroginsenoside Rb 1 Prevents Compressive Spinal Cord Injury and Ischemic Brain Damage through Upregulation of VEGF and Bcl-xL2007
Author(s)
Sakanaka M, Zhu P, Zhang Bo, Wen TC, Cao F, Ma YJ, Samukawa K, Mitsuda N, Tanaka J, Kuramoto M, Uno H, Hata R.
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Journal Title
Journal of Neurotrauma 24
Pages: 1037-1054
Related Report
Peer Reviewed
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[Journal Article] Hematopoietic stem cells prevent hair cell death after transient cochlear ischemia through paracrine effects2007
Author(s)
Yoshida T, Hakuba N, Morizane I, Fujita K, Cao F, Zhu P, Uchida N, Kameda K, Sakanaka M, Gyo K, Hata R.
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Journal Title
Neuroscience 145
Pages: 923-30
Related Report
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[Journal Article] Prevention of ischemic neuronal death by intravenous infusion of aginseng saponin,ginsenoside Rb(1),that upregulates Bcl-x(L)expression2006
Author(s)
Zhang B, Hata R, Zhu P, Sato K, Wen TC, Yang L, Fujita H, Mitsuda N, Tanaka J, Samukawa K, Maeda N, and Sakanaka M.
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Journal Title
J Cereb Blood Flow Metab 26
Pages: 708-721
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Overexpression of SOCS3 inhibits astrogliogenesis and promotes maintenance of neural stem cells2006
Author(s)
Cao, F., Hata, R., Zhu, P., Ma, YJ., Tanaka, J., Hanakawa, Y., Hashimoto, K., Niinobe, M., Yoshikawa, K., Sakanaka, M
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Journal Title
J Neurochem 98
Pages: 459-70
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Prevention of ischemic neuronal death by intravenous infusion of a ginseng saponin, ginsenoside Rb(1), that upregulates Bcl-x(L) expression2006
Author(s)
Zhang, B., Hata, R., Zhu, P., Sato, K., Wen, TC., Yang, L., Fujita, H., Mitsuda, N., Tanaka, J., Samukawa, K., Maeda, N., Sakanaka, M
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Journal Title
J Cereb Blood Flow Metab 26
Pages: 708-721
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Prevention of ischemic neuronal death by intravenous infusion of a ginseng saponin, ginsenoside Rb(1), that upregulates Bcl-x(L) expression.2006
Author(s)
Zhang B, Hata R, Zhu P, Sato K, Wen TC, Yang L, Fujita H, Mitsuda N, Tanaka J, Samukawa K, Maeda N, Sakanaka M.
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Journal Title
J Cereb Blood Flow Metab 26
Pages: 708-721
Related Report
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[Presentation] Hematopoietic stem cells prevent hair cell death after transient cochlear ischemia through paracrine effects2007
Author(s)
Yoshida, T., Hata, R., Hakuba, N., Cao, F., Zhu, P., Sakanaka, M., Gyo, K
Organizer
The 23rd International Symposium on Cerebral Blood Flow, Metabolism & Function
Place of Presentation
Osaka
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Presentation] Protective effects of dihydrogeninsenoside Rbl on ischemic brain damage and compressive spinal cord injury through upregulation of VEGF and Bcl-XL2007
Author(s)
Hata, R., Cao, F., Zhu, P., Samukawa, K., Sakanaka, M
Organizer
The 23rd International Symposium on Cerebral Blood Flow, Metabolism & Function
Place of Presentation
Osaka
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Targeted disruption of organic cation transporter 3 in mice reduces ischemic brain injury through down-regulation of IL 6 and MCP-12007
Author(s)
Zhu, P., Hata, R., Ogasawara, M., Cao, F., Maeyama, K., Sakanaka, M
Organizer
The 23rd International Symposium on Cerebral Blood Flow, Metabolism & Function
Place of Presentation
Osaka
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Risk of conversion from mild memory impairment to Altzhemier' disease in a Japanese community (from the Nakayama Study)2007
Author(s)
Matsumoto, N., Hata, R., Ishikawa, T., Fukuhara, R., Hokoishi, K., Ikeda, M., Tanabe, H
Organizer
International Psychogeriatric Association 25th Anniversary Meeting
Place of Presentation
Osaka
Description
「研究成果報告書概要(欧文)」より
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