Study on mechanisms of odontoblasts processes formation and dentin development
Project/Area Number |
19390466
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Morphological basic dentistry
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Research Institution | Iwate Medical University |
Principal Investigator |
HARADA Hidemitsu Iwate Medical University, 歯学部, 教授 (70271210)
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Co-Investigator(Kenkyū-buntansha) |
石関 清人 若手医科大学, 歯学部, 准教授 (50057775)
藤原 尚樹 若手医科大学, 歯学部, 講師 (20190100)
鍵谷 忠慶 若手医科大学, 歯学部, 助教 (30405774)
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Co-Investigator(Renkei-kenkyūsha) |
ISHIZEKI Kiyoto 岩手医科大学, 歯学部, 准教授 (50057775)
FUJIWARA Naoki 岩手医科大学, 歯学部, 講師 (20190100)
KAGIYA Tadayoshi 岩手医科大学, 歯学部, 助教 (30405774)
|
Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
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Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2007: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
|
Keywords | 歯の発生 / 象牙芽細胞 / リアルタイムイメージング / RECK / ROCK / 細胞極性 / マトリックスメタロプロテアーゼ / アメロゲニン / 発生・分化 / 歯学 / 細胞・組織 / シグナル伝達 / 歯胚発生 / Rhoシグナリング / real time imaging / slice culture / FGF9 / NGF / スライスカルチャー / ネスチン |
Research Abstract |
We designed the real time imaging system in a slice tooth germ culture of actin promoter GFP transgenic mouse. Using the technique, we could capture the cell division and movement of mesenchymal cells in the dental papilla and demonstrate the formation of odontoblasts processes. We examined the role of Rho-associated kinase (ROCK) in odontoblasts differentiation using an organ culture of mouse incisor and mouse dental mesenchaml cell line. ROCK inhibitors and ROCK siRNA inhibited actin polymerization and E-cadherin expression on the cytoplasmic membrane. ROCK plays an important role in maintenance of cellular polarization through regulations of cytoskeleton and cell adhesion in the odontoblasts differentiation. Odotoblasts expressed the amelogenin, MMP inhibitors and MMP. Our data suggested that these factors play an important role in the maintenance of dentin canal.
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Report
(4 results)
Research Products
(83 results)
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[Journal Article] Apc inhibition of Wnt signaling regulates supernumerary tooth formation during embryogenesis and throughout adulthood.2009
Author(s)
Wang XP, 0'Connell DJ, Lund JJ, Saadi I, Kuraguchi M, Turbe-Doan A, Cavallesco R, Kim H, Park PJ, Harada H, Kucherlapati R, Maas RL
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Journal Title
Development 136(11)
Pages: 1939-49
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[Journal Article] Preparation and in vivo evaluation of apatite/collagen packed composite by alternate immersion method and Newton press.2009
Author(s)
Taira, M., Nezu, T., Sasaki, K., Saitoh, S., Kagiya, T., Harada, H., Takada, Y., Araki, Y.
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Journal Title
J. Biomed. Mater. Res. B Appl. Biomater. 90
Pages: 566-573
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[Journal Article] Microscopic observations and inflammatory cytokine productions of human macrophage phagocytising submicron titanium particles.2009
Author(s)
Taira, M., Kagiya, T., Harada, H., Sasaki, M., Kimura, S., Narushima, T., Nezu, T., Araki, Y.
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Journal Title
J. Mater. Sci. Mater. Med. 20
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[Journal Article] Critical role of heparin binding domains of ameloblastin for dental epithelium cell adhesion and ameloblastoma proliferation.2009
Author(s)
Sonoda A, Iwamoto T, Nakamura T, Fukumoto E, Yoshizaki K, Yamada A, Arakaki M, Harada H, Nonaka K, Nakamura S, Yamada Y, Fukumoto S.
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Journal Title
J Biol. Chem. 2;284(40)
Pages: 27176-84
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[Journal Article] Neurotrophic factor NT-4 regulates ameloblastin expression via full-length TrkB.2008
Author(s)
Yoshizaki K, Yamamoto S, Yamada A, Yuasa K, Iwamoto T, Fukumoto E, Harada H, Saito M, Nakasima A, Nonaka K, Yamada Y, Fukumoto S
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Journal Title
J Biol Chem 283(6)
Pages: 3385-3391
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[Journal Article] Establishment of immortalized dental follicle cells for generating periodontal ligament in vivo.2007
Author(s)
Yokoi, T., Saito, M., Kiyono, T., Iseki, S., Kosaka, K., Nishida, E., Tsubakimoto, T., Harada, H., Eto, K., Noguchi, T., Teranaka, T.
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Journal Title
Cell Tissue Res 327(2)
Pages: 301-11
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[Presentation] Gap junctional communication regulates ameloblast differentiation.2007
Author(s)
Yamada, A., Fukumoto, E.Yoshizaki, K., Yuasa, K., Yamamoto, S., Iwamoto, T., Furukawa, S., Harada, H., Saito, M., Nonaka, K., Fukumoto, S
Organizer
9th International Conference on Tooth Morphogenesis and Differentiation
Place of Presentation
Zurich, Switzerland
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[Presentation] Role of P38 kinase and JNK in tooth development.2007
Author(s)
Yamaguchi, Y., Ichioka, H., Toyosawa, S., Harada, H., Nishimura, R., T Yoneda T.
Organizer
9th International Conference on Tooth Morphogenesis and Differentiation
Place of Presentation
Zurich, Switzerland
Related Report
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[Presentation] Neurotrophic factor NT-4 regulates ameloblastin expression.2007
Author(s)
Yoshizaki, K., Yamada, A., Yuasa, K., Yamamoto, S., Iwamoto, T., Harada, H., Saito, M., Fukumoto, E., Nonaka, K., Fukumoto, S.
Organizer
9th International Conference on Tooth Morphogenesis and Differentiation
Place of Presentation
Zurich, Switzerland
Related Report
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[Presentation] Mechanisms on maintenance of dental stem cells and how to make a biotooth.2007
Author(s)
Harada, H., Fujiwara, N., Y-Tamaki, T., Kagiya, T., Tabata, Y., Ishizek.K.
Place of Presentation
Tsukuba, Japan
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[Presentation] Increased ameloblastin expression in dental epithelial cell line by co-culture with mesenchymal cell line.2007
Author(s)
Matsumoto, A., Xu, L., Saito, M., Harada, H., Taniguchi, A.
Organizer
1st ABMC
Place of Presentation
Tsukuba, Japan
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