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Coexpression of Ang1 and Tie2 in Odontoblasts of Mouse Developing and Mature Teeth—A New Insight into Dentinogenesis


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タイトル: Coexpression of Ang1 and Tie2 in Odontoblasts of Mouse Developing and Mature Teeth—A New Insight into Dentinogenesis
著者: Nakajima, Kazunori / Shibata, Yasuaki / Hishikawa, Yoshitaka / Suematsu, Takashi / Mori, Masako / Fukuhara, Shigetomo / Koji, Takehiko / Sawase, Takashi / Ikeda, Tohru
発行日: 2014年 2月27日
出版者: 日本組織細胞化学会 / Japan Society of Histochemistry and Cytochemistry
引用: ACTA HISTOCHEMICA ET CYTOCHEMICA, 47(1), pp.19-25; 2014
抄録: Agiopoieten regulates vascular angiogenesis and stabilization, and is reported to promote bone formation by facilitating angiogenesis. To estimate the role of Ang1 in odontogenesis, we explored the distribution of Ang1 and the receptor, Tie2 in the mouse developing and mature first molar of the mandible. At embryonic day 18, when differentiation of odontoblasts begins, immunosignals for Ang1 were intensely detected in the basement membrane and the distal side, which faced the basement membrane of odontoblasts. In situ hybridization revealed that Ang1 was expressed in odontoblasts and ameloblasts facing the basement membrane. Tie2 was localized in the distal side of odontoblasts. After birth, Ang1 was detected in the predentin, whereas both Ang1 and Tie2 were colocalized in odontoblasts and odontoblast processes. These distributions were retained up to 8 weeks. In contrast to odontoblasts, ameloblasts, cementoblasts and osteoblasts expressed Ang1 but did not express Tie2. Colocalization of Ang1 and Tie2 in odontoblasts and selective expression of Tie2 in odontoblasts among cells responsible for calcified tissue formation suggested the involvement of autocrine signals of Ang1-Tie2 in dentinogenesis.
キーワード: Angiopoietin-1 / Dentinogenesis / Odontoblast / Tie2 / Tooth
URI: http://hdl.handle.net/10069/34405
ISSN: 00445991
DOI: 10.1267/ahc.13043
権利: © 2014 The Japan Society of Histochemistry and Cytochemistry.
資料タイプ: Journal Article
原稿種類: publisher
出現コレクション:040 学術雑誌論文

引用URI : http://hdl.handle.net/10069/34405

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