2012年6月
Bmp signalling in filiform tongue papillae development
ARCHIVES OF ORAL BIOLOGY
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- 巻
- 57
- 号
- 6
- 開始ページ
- 805
- 終了ページ
- 813
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.archoralbio.2011.11.014
- 出版者・発行元
- PERGAMON-ELSEVIER SCIENCE LTD
Objective: Tongue papillae are critical organs in mastication. There are four different types of tongue papillae; fungiform, circumvallate, foliate, and filiform papillae. Unlike the other three taste papillae, non-gustatory papillae, filiform papillae cover the entire dorsal surface of the tongue and are important structures for the mechanical stress of sucking. Filiform papillae are further classified into two subtypes with different morphologies, depending on their location on the dorsum of the tongue. The filiform papillae at the intermolar eminence have pointed tips, whereas filiforrn papillae with rounded tips are found in other regions (anterior tongue). It remains unknown how the shape of each type of filiform papillae are determined during their development. Bmp signalling pathway has been known to regulate mechanisms that determine the shapes of many ectodermal organs. The aim of this study was to investigate the role of Bmp signalling in filiform papillae development.
Design: Comparative in situ hybridization analysis of six Bmps (Bmp2-Bmp7) and two Bmpr genes (Bmpr1a and Bmpr1b) were carried out in filiform papillae development. We further examined tongue papillae in mice over-expressing Noggin under the keratin14 promoter (K14-Noggin).
Results: We identified a dynamic temporo-spatial expression of Bmps in filiform papillae development. The K14-Noggin mice showed pointed filiform papillae in regions of the tongue normally occupied by the rounded type.
Conclusions: Bmp signalling thus regulates the shape of filiform papillae. (C) 2011 Elsevier Ltd. All rights reserved.
Design: Comparative in situ hybridization analysis of six Bmps (Bmp2-Bmp7) and two Bmpr genes (Bmpr1a and Bmpr1b) were carried out in filiform papillae development. We further examined tongue papillae in mice over-expressing Noggin under the keratin14 promoter (K14-Noggin).
Results: We identified a dynamic temporo-spatial expression of Bmps in filiform papillae development. The K14-Noggin mice showed pointed filiform papillae in regions of the tongue normally occupied by the rounded type.
Conclusions: Bmp signalling thus regulates the shape of filiform papillae. (C) 2011 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.archoralbio.2011.11.014
- ISSN : 0003-9969
- PubMed ID : 22186069
- Web of Science ID : WOS:000305600900031