2012 Fiscal Year Final Research Report
Functional and morphological analysis of mitochondria in osteoclastic bone resorption
Project/Area Number |
22591698
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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 |
Orthopaedic surgery
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Research Institution | Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology |
Principal Investigator |
TOKIMURA Fumiaki 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (80242147)
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Co-Investigator(Kenkyū-buntansha) |
MIYAZAKI Tsuyoshi 地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (50376480)
TANAKA Sakae 東京大学, 医学部附属病院・整形外科, 教授 (50282661)
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Co-Investigator(Renkei-kenkyūsha) |
TANAKA Sakae 東京大学, 医学部附属病院・整形外科, 教授 (50282661)
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Project Period (FY) |
2010 – 2012
|
Keywords | 骨関節破壊 / 破骨細胞 |
Research Abstract |
To explore the relationship between osteoclastic bone resorption and mitochondrial morphology, we constructed adenoviruses carrying wild type Drp1 or dominant negative form of Drp1 (Drp1K38A, a point mutation at Lys-38 to Ala). Infection of AxDrp1K38A did not have any effect on osteoclast survival. However, the expression of Drp1K38A caused cytoskeletal disorganization of osteoclasts and suppressed pit-forming activity of the cells in vitro. These results suggest a potential application of mitochondrial fission to control osteoclastic bone resorption.
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Research Products
(33 results)
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[Presentation] Muscle fiber type specific pathology in aging mouse.2012
Author(s)
Fukunaga, T., Kubo, S., Mori, S., Miyazaki, T., Higami, Y. And Shigemoto, K.
Organizer
第35回日本分子生物学会年会
Place of Presentation
福岡
Year and Date
20121211-14
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[Presentation] A novel murine model of myasthenia gravis with MuSK antibodies.2012
Author(s)
Mori, S., Kubo, S., Akiyoshi, T., Yamada, S., Miyazaki,T., Hotta, H., Desaki, J., Kishi, M., Konishi, T., Maruyama, N. And Shigemoto, K.
Organizer
12th International conference on myasthenia gravis and related disorders
Place of Presentation
New York
Year and Date
20120521-23
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