Multiple regulation of skeletal formation
Project/Area Number |
15K11027
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Morphological basic dentistry
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Research Institution | Tsurumi University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
二藤 彰 鶴見大学, 歯学部, 教授 (00240747)
出野 尚 鶴見大学, 歯学部, 助教 (40435699)
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Project Period (FY) |
2015-04-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | 骨芽細胞 / 破骨細胞 / 転写因子 / 骨形成 |
Outline of Final Research Achievements |
1)Annexin A5 (Anxa5) plays a critical role in the regulation of bone ridge outgrowth at enthesis. The sizes of bone ridges at the entheses of the long bones were increased in Anxa5 null mice. 8 weeks after hindlimb unloading, Anxa5 null mice showed a decrease in bone overgrowth to similar extents to wild-type mice, suggesting that Anxa5 regulates biological responses to mechanical forces. 2) Osterix (Osx) is a transcription factor that is necessary for osteoblast differentiation. Sirt7 null mice developed osteopenia characterized by decreased bone formation. Interaction of SIRT7 with OSX thorough C-terminal region results in activation of OSX activity. 3) Adenovirus-mediated gene transduction to osteoclast precursors inhibited osteoclast formation in vitro. Adenoviruses without a protein coding cDNA did not affect osteoclast formation, suggesting that modification protein production in osteoclast precursors has a negative impact on osteoclast formation.
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Academic Significance and Societal Importance of the Research Achievements |
脊椎動物の骨形成過程には内軟骨性骨形成と内膜性骨形成の2つの異なる過程がある。両過程において骨芽細胞が骨基質の産生と石灰化と骨基質を溶解する破骨細胞の分化を制御する。骨芽細胞と破骨細胞の機能的平衡状態が破綻すると、骨粗鬆症、骨硬化症あるいは癌細胞の骨転移などの骨格病変を引き起こす。加えて、骨組織は靭帯と腱組織により筋肉組織と結合することにより機能的な動きを獲得して生理的な役割を果たす。本研究では骨芽細胞分化とenthesisの発達、並びに破骨細胞分化の制御機構に焦点を当てており、新たな知見を得た。この応用を目指すことによって、骨格と筋組織の調和のとれた成長とその障害が解明されると期待できる。
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Report
(5 results)
Research Products
(34 results)
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[Journal Article] Annexin A5 involvement in bone overgrowth at the enthesis2018
Author(s)
Shimada Akemi, Ideno Hisashi, Arai Yoshinori, Komatsu Koichiro, Wada Satoshi, Yamashita Teruhito, Amizuka Norio, Poschl Ernst, Brachvogel Bent, Nakamura Yoshiki, Nakashima Kazuhisa, Mizukami Hiroaki, Ezura Yoichi, Nifuji Akira
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Journal Title
Journal of Bone and Mineral Research
Volume: 印刷中
Issue: 8
Pages: 1532-1543
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Essential roles of G9a in cell proliferation and differentiation during tooth development.2017
Author(s)
Kamiunten T, Ideno H, Shimada A, Arai Y, Terashima T, Tomooka Y, Nakamura Y, Nakashima K, Kimura H, Shinkai Y, Tachibana M, Nifuji A
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Journal Title
Experimental Cell Research.
Volume: 印刷中
Issue: 2
Pages: 170-180
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] H3K9MTase G9a regulates tooth development in mice2017
Author(s)
Ideno Hisashi, Kamiunten Taichi, Shimada Akemi, Terashima Tatsuo, Nakashima Kazuhisa, Tomooka Yasuhiro, Nakamura Yoshiki, Kimura Hiroshi, Tachibana Makoto, Nifuji Akira
Organizer
The American Society for Bone and Mineral Research
Related Report
Int'l Joint Research
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[Presentation] Histone methyltransferase G9a is essential for osteoblastic differentiation and proliferation in vitro, and skull bone formation in vivo2015
Author(s)
H. Ideno, K. Komatsu, A. Shimada, T. Kamiunten, Y. Arai, K. Nakashima, R. Araki, Y. Nakamura, M. Abe, M. Tachibana, H. Kimura, A. Nifuji
Organizer
American Society of Cell Biology annual meeting
Place of Presentation
San Diego Convention Center (San Diego, USA)
Year and Date
2015-12-12
Related Report
Int'l Joint Research
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[Presentation] Deletion of G9a, histone methyltransferase, causes impaired bone formation.2015
Author(s)
Ideno H, Komatsu K, Shimada A, Kamiunten T, Arai Y, Nakashima K, Araki R, Nakamura Y, Abe M, Tachibana M, Kimura H, Nifuji A
Organizer
Joint ANZBMS, MEPSA and MBSANZ Annual Scientific Meeting
Place of Presentation
Hotel Grand Chancellor (Hobart,Tasmania)
Year and Date
2015-11-01
Related Report
Int'l Joint Research
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[Presentation] Annexin A5 inhibits bony outgrowth at tendon/ligament insertion sites.2015
Author(s)
Shimada A, Arai Y, Wada S, Ideno H, Kamiunten T, Nakashima K, Komatsu K, Yamashita T, Ezura Y, Amizuka N, Pöschl E, Brachvogel B, Nakamura Y, Nifuji A
Organizer
ASBMR 2015 annual meeting
Place of Presentation
Washington State Convention Center (Seattle, USA)
Year and Date
2015-10-09
Related Report
Int'l Joint Research
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