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Features of the clear zone of odontoclasts in the Chinook salmon (Oncorhynchus tshawytscha)

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Title: Features of the clear zone of odontoclasts in the Chinook salmon (Oncorhynchus tshawytscha)
Authors: Domon, Takanori Browse this author →KAKEN DB
Taniguchi, Yumi Browse this author
Fukui, Ami Browse this author
Suzuki, Reiko Browse this author
Takahashi, Shigeru Browse this author →KAKEN DB
Yamamoto, Tsuneyuki Browse this author
Wakita, Minoru Browse this author
Keywords: Odontoclast
Clear zone
Chinook salmon
Issue Date: 2006
Publisher: Springer
Journal Title: Anatomy and Embryology
Volume: 211
Issue: 2
Start Page: 87
End Page: 93
Publisher DOI: 10.1007/s00429-005-0061-1
PMID: 16328359
Abstract: This study aims to clarify the features of the clear zone of odontoclasts on shedding teeth of a teleost fish, Chinook salmon, Oncorhynchus tshawytscha (Walbaum), using a light microscope to determine the orientation between a cell body and a resorptive lacuna, followed by transmission electron microscopy. Ultrathin sections of LR White embedded material were incubated in rabbit anti-actin polyclonal antibody and then were incubated with 15 nm gold-conjugated goat anti-rabbit IgG. The clear zones of odontoclasts showed a variable structure with electron-dense structures on sections, but distinct clear zones were not always seen on odontoclasts. In odontoclasts sectioned in the direction perpendicularly to the surface of a resorptive lacuna, some cells showed a wide clear zone, but two types of clear zones were usually observed: a part composed of some cytoplasmic processes and one composed of several complicatedly interwoven processes. Gold particles were localized on the clear zones, especially in electron-dense structures; very few gold particles were detected in ruffled borders. These results show that the clear zone of odontoclasts in Chinook salmon contains actin. Our results suggest that the clear zone of an odontoclast in Chinook salmon is not always a wide annular structure.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 土門 卓文

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