| Project/Area Number |
12671339
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Cerebral neurosurgery
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| Research Institution | Akita University |
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Principal Investigator |
KINOUCHI Hiroyuki Akita University, School of Medicine, Lecturer, 医学部, 講師 (30241623)
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| Co-Investigator(Kenkyū-buntansha) |
ITOH Hideaki Akita University, School of Medicine, Associate Professor, 医学部, 助教授 (80168369)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2000: ¥2,100,000 (Direct Cost: ¥2,100,000)
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| Keywords | PC12 / electroporation / heat shock protein / cerehral ischemia / fransfection / DNA / HSP / apoptosis / heat shock protein / HSP70 / transfection / 熱ショック蛋白 / hsp / トランスフェクション / 遺伝子組み換え |
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| Research Abstract |
Gene transfer into rat brain: Rats (4, 8, or 12 weeks old) were anesthetized and fixed onto a stereotaxic operating table. A burr hole was opened and 20μg of plasmid DNA (pBK-CMV-HSP70) was injected into the hippocampus or striatum using a cannula. The injection time was changed from 10 sec to 10 min. Subsequently, a pair of stainless steel electrodes was inserted the region. Electric pulses were generated with a Square Electro Porator (CUY21) and were administered at 10 Hz. Electric pulses were 2ms in duration at 50, 100, or 150 V. However, at any condition, the sufficient gene transfer was not obtained. Only a couple of neurons showed β-galactosidase positive coincidentally.
Transfection of HSP70 gene into PC12 cells: Human HSP75 cDNA was transfected using the pBK-CMV vector. Production of HSP70 protein was confirmed by Western blot analysis. The PC12 cells overexpressing HSP70 were exposed to hydrogen peroxide (50, 100, 150μM). MTT assay after 24h of exposure revealed the significant viability of HSP70-transfected PC12. The protective effect of HSP70 against oxidative injury was revealed.
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