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Ectodermal and ectomesenchymal marker expression in primary cell lines of complex and compound odontomas: a pilot
David A Trejo-Remigio1, Luis F Jacinto-Alemán2, Elba R Leyva-Huerta3
1Department of Oral Medicine and Pathology, Graduate Dental School, National Autonomous Mexico University, Mexico City, Mexico.
Minerva Stomatologica
|April 25, 2019
Summary
Compound and complex odontomas show distinct cellular marker profiles, indicating heterogeneous behavior in these odontogenic tumors. This research aids in understanding odontoma development and potential therapeutic targets.
Area of Science:
- Oral Pathology
- Developmental Biology
- Tumor Biology
Background:
- Odontomas are odontogenic tumors with hamartoma features, classified as compound or complex.
- Understanding their cellular behavior is crucial for diagnosis and treatment.
Purpose of the Study:
- To characterize ectodermal and ectomesenchymal profile markers in primary cell cultures of complex and compound odontomas.
- To compare the proliferation and marker expression between these two odontoma types.
Main Methods:
- Primary cell cultures were established from compound (OdCm) and complex (OdCx) odontomas.
- MTT assays, immunocytochemistry, and RT-PCR were performed for various markers (e.g., CD34, Sox2, Amel, Pax9, RUNX2, BSP, OPN).
- Paraffin-embedded samples were used for validation.
Main Results:
- Compound odontoma cultures showed higher proliferation and an ectomesenchymal profile with predominant expression of Amel, BSP, Pax9, EDAR, Barx, and Msx2.
- Complex odontoma cultures showed predominant expression of Sox2, CD34, RUNX2, and OPN.
- Significant differences in OPN and CD34 expression were observed via PCR.
Conclusions:
- Both odontoma types exhibit heterogeneous cellular behavior.
- Compound odontomas display markers related to enamel knot formation, late odontogenesis, and ectomesenchymal interactions.
- Complex odontomas show significant CD34 and OPN expression, potentially contributing to their distinct mineralized structure.
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