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Odontogenic ameloblasts-associated protein (ODAM), via phosphorylation by bone morphogenetic protein receptor type IB (BMPR-IB), is implicated in ameloblast differentiation.

Cited 14 time in Web of Science Cited 15 time in Scopus
Issue Date
2012-05
Publisher
WILEY-LISS
Citation
JOURNAL OF CELLULAR BIOCHEMISTRY Vol.113 No.5, pp. 1754-1765
Keywords
복합학ODAMBMPR-IBMAPKAMELOBLASTDIFFERENTIATION
Abstract
To elucidate the function of the odontogenic ameloblast-associated protein (ODAM) in ameloblasts, we identified more than 74 proteins that
interact with ODAM using protoarray. Of the identified proteins, bone morphogenetic protein receptor type-IB (BMPR-IB) was physiologically
relevant in differentiating ameloblasts. ODAM and BMPR-IB exhibited similar patterns of expression in vitro, during ameloblast differentiation.
ODAM and BMPR-IB interacted through the C-terminus of ODAM, which resulted in increased ODAM phosphorylation in the presence of
bone morphogenetic protein 2 (BMP-2). Immunoprecipitation assays using Ser-Xaa-Glu (SXE) mutants of ODAM demonstrated that the
phosphorylation of ODAM by BMPR-IB occurs at this motif, and this phosphorylation is required for the activation of MAPKs. ODAM
phosphorylation was detected in ameloblasts during ameloblast differentiation and enamel mineralization in vitro and involved in the
activation of downstream factors of MAPKs. Therefore, the BMP-2-BMPR-IB-ODAM-MAPK signaling cascade has important roles in
ameloblast differentiation and enamel mineralization. Our data suggest that ODAM facilitates the progression of tooth development in
cooperation with BMPR-IB through distinct domains of ODAM
ISSN
0730-2312
Language
English
URI
https://hdl.handle.net/10371/81400
DOI
https://doi.org/10.1002/jcb.24047
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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