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Journal of Molecular Histology

, Volume 45, Issue 6, pp 627–640 | Cite as

Expression of cytokeratin 8, vimentin, syndecan-1 and Ki-67 during human tooth development

  • D. Kero
  • D. Kalibovic Govorko
  • K. Vukojevic
  • M. Cubela
  • V. Soljic
  • M. Saraga-Babic
Original Paper

Abstract

Spatio-temporal immunolocalizations of cytokeratin 8 (CK8), vimentin, syndecan-1 and Ki-67 were analyzed in ten human incisors and canine tooth germs between the 7th and 20th developmental weeks. CK8 expression was mild to moderate in the epithelial tooth parts, while it shifted from absent or mild in its mesenchymal parts, but few cells, sparsely distributed throughout the tooth germ, strongly expressed CK8. As development progressed, CK8 expression increased to strong in preameloblasts, while expression of vimentin increased to moderate in the epithelial and mesenchymal tooth parts, particularly in the dental papilla and sac. Co-expression of CK8 and vimentin was observed in some parts of the tooth germ, and was increasing in the differentiating preameloblasts and preodontoblasts. Syndecan-1 showed characteristic shift of expression from epithelial to mesenchymal tooth parts, being particularly strong in dental papilla, sac and cervical loops, while co-expression of Ki-67/syndecan-1 was strong in the dental papilla. Our study demonstrated spatio-temporal expression and restricted co-expression of the investigated markers, indicating participation of CK8 and vimentin in cell proliferation and migration, and differentiation of preodontoblasts and preameloblasts. Our data also suggest involvement of syndecan-1 in morphogenesis of the developing tooth crown and cervical loops, and together with CK8 and vimentin in differentiation of preameloblasts and preodontoblasts.

Keywords

Human tooth germ Cytokeratin 8 Vimentin Syndecan-1 Ki-67 

Notes

Acknowledgments

The authors thank Mrs. Asja Miletic for expert technical assistance. This work was supported by the Ministry of Science, Education and Sports of the Republic of Croatia (grant no. 021-2160528-0507, main investigator Mirna Saraga-Babic).

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • D. Kero
    • 1
  • D. Kalibovic Govorko
    • 1
  • K. Vukojevic
    • 2
    • 3
  • M. Cubela
    • 2
  • V. Soljic
    • 2
  • M. Saraga-Babic
    • 3
  1. 1.School of Dental MedicineUniversity of SplitSplitCroatia
  2. 2.Department of Histology and Embriology, School of MedicineUniversity of MostarMostarBosnia and Herzegovina
  3. 3.Department of Anatomy, Histology and Embriology, School of MedicineUniversity of SplitSplitCroatia

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