| Project/Area Number |
22590247
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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 |
General pharmacology
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| Research Institution | Tokyo Medical University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUOKA Masaaki 東京医科大学, 医学部, 教授 (70222297)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | アルツハイマー病 / 神経細胞死 / アミロイド前駆体蛋白質 / プレセニリン / ヒューマニン / アミロイド前駆体タンパク質 / 神経変性疾患 / サイトカイン / 細胞内シグナル伝達 / 受容体 / 治療薬 / 細胞内シグナル伝 |
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| Research Abstract |
In this research program, we have examined the neuronal cell death mechanism underlysing Alzhemer’s disease (AD), and identified an antagonist of Humanin (HN) which inhibited AD-relevant neuronal cell death and an endogenous agonist of HN receoptor complex composed of WSX-1, ciliary neurotrophic factor receptor/gp130. The results were: (1) MOCA is the key molecule that unifies APP-mediated death signal to PS-mediated death signal, (2) V-set transmembrane domain containing 2 like inhibited HN’s activity via direct binding, and (3) A series of experiments also showed that calmodulin-like skin protein (CLSP), highly expressed in skin tissues, is transported across blood-brain barrier to the central nervous system. CLSP inhibited familial AD-linked V642I-APP-induced neuronal cell death via its binding to HN receptor following activation of JAK2/STAT3 axisThese results suggest that CLSP play a main role in inhibiting AD-related neuronal death and dysfunction in vivo as a physiological defense factor.
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