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Expression and localization of Nell-1 during murine molar development
Ronghua Tang1, Qiang Wang, Jianxin Du
1Shandong Provincial Key Laboratory of Oral Biomedicine, School and Hospital of Stomatology, Shandong University, 44-1 Wenhuaxi Road, Jinan 250012, Shandong, People's Republic of China.
Journal of Molecular Histology
|December 25, 2012
Summary
Nel-like molecule-1 (Nell-1) is crucial for tooth development, showing distinct expression patterns during murine molar formation. This secreted protein is involved in ameloblast and odontoblast differentiation and matrix mineralization.
Area of Science:
- Developmental Biology
- Molecular Biology
- Histology
Background:
- Nel-like molecule-1 (Nell-1) is a secreted protein vital for osteoblast differentiation and bone regeneration.
- Its role and expression during tooth development remain largely uncharacterized.
Purpose of the Study:
- To investigate the spatiotemporal expression patterns of Nell-1 during murine molar development.
- To elucidate the potential functions of Nell-1 in tooth formation processes.
Main Methods:
- Immunohistochemistry was employed to detect Nell-1 protein expression.
- Murine molars at various embryonic and postnatal stages were analyzed.
Main Results:
- Nell-1 expression was observed throughout murine molar development, with distinct patterns at different stages.
- Protein localization included enamel organs, mesenchyme, ameloblasts, odontoblasts, and Hertwig's epithelial root sheath.
- Expression varied from embryonic day 13.5 through postnatal stages, including during tooth eruption.
Conclusions:
- Nell-1 exhibits dynamic spatiotemporal expression during murine tooth development.
- These patterns suggest Nell-1 plays significant roles in ameloblast and odontoblast differentiation, extracellular matrix secretion and mineralization, crown morphogenesis, and root formation.
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