Polarized, Amelogenin Expressing Ameloblast-Like Cells from Cervical Loop/Dental Pulp Cocultures in Bioreactors. Academic Article uri icon


  • The growth of long and polarized ameloblast-like cells has long been heralded as a major prerequisite for enamel tissue engineering. In this study, we have designed three-dimensional bioreactor/scaffold microenvironments to propagate and assess the ability of cervical loop derivatives to become long and polarized ameloblast-like cells. Our studies demonstrated that cervical loop/periodontal progenitor coculture in a growth-factor-enriched medium resulted in the formation of ameloblast-like cells expressing high levels of amelogenin and ameloblastin. Coculture of cervical loop cells with dental pulp cells on tailored collagen scaffolds enriched with leucine-rich amelogenin peptide (LRAP) and early enamel matrix resulted in singular, elongated, and polarized ameloblast-like cells that expressed and secreted ameloblastin and amelogenin enamel proteins. Bioreactor microenvironments enriched with enamel matrix and LRAP also proved advantageous for the propagation of HAT-7 cells, resulting in a 20-fold higher expression of amelogenin and ameloblastin enamel proteins compared with controls growing on plain scaffolds. Together, studies presented here highlight the benefits of microgravity culture systems combined with ameloblast-specific microenvironments and tailored scaffolds for the growth of ameloblast-like cells.

published proceedings

  • Stem Cells Dev

altmetric score

  • 0.25

author list (cited authors)

  • Pandya, M., Lyu, H., Luan, X., & Diekwisch, T.

citation count

  • 1

complete list of authors

  • Pandya, Mirali||Lyu, Huling||Luan, Xianghong||Diekwisch, Thomas GH

publication date

  • January 2021