Heba Al-Zer1, Christian Apel2, Max Heiland3, Reinhard E Friedrich3, Ole Jung3, Nadja Kroeger3, Wolfgang Eichhorn3, Ralf Smeets3. 1. Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany h.al-zer@uke.de alzer_heba@yahoo.com. 2. Department of Tissue Engineering and Textile Implants, Institute of Applied Medical Engineering, Helmholtz Institute of the RWTH Aachen University, Aachen, Germany. 3. Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, University of Hamburg, Hamburg, Germany.
Abstract
BACKGROUND/AIM: As already described in previous studies, neural crest stem cells (NCSCs) can be found in adult human dental pulp. The present study investigated the methodology for enrichment and differentiation-induction of the above mentioned cells. MATERIALS AND METHODS: Dental pulp was extracted from human wisdom teeth of four patients and subsequently cultured as explants on fibronectin-coated plates in neurobasal medium supplemented with B27, basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), insulin, l-glutamine and neuregulin-β1. The cells were then characterized by immunofluorescence, while their differentiation-potential was tested by the attempt to induce cells into different lineages, i.e. osteogenic, melanocytic and glial. RESULTS: The enriched cell population expressed nestin, CD271 and SOX10, which are well-known markers for NCSCs. Consequently, the cells were successfully induced to differentiate into osteoblasts, melanocytes and Schwann cells, expressing the corresponding differentiation markers. CONCLUSION: Human adult dental pulp contains a population of stem cells with neural crest ontogeny, which can thus be recruited for multiple regenerative therapies.
BACKGROUND/AIM: As already described in previous studies, neural crest stem cells (NCSCs) can be found in adult human dental pulp. The present study investigated the methodology for enrichment and differentiation-induction of the above mentioned cells. MATERIALS AND METHODS: Dental pulp was extracted from human wisdom teeth of four patients and subsequently cultured as explants on fibronectin-coated plates in neurobasal medium supplemented with B27, basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), insulin, l-glutamine and neuregulin-β1. The cells were then characterized by immunofluorescence, while their differentiation-potential was tested by the attempt to induce cells into different lineages, i.e. osteogenic, melanocytic and glial. RESULTS: The enriched cell population expressed nestin, CD271 and SOX10, which are well-known markers for NCSCs. Consequently, the cells were successfully induced to differentiate into osteoblasts, melanocytes and Schwann cells, expressing the corresponding differentiation markers. CONCLUSION:Human adult dental pulp contains a population of stem cells with neural crest ontogeny, which can thus be recruited for multiple regenerative therapies.
Authors: Chelsea M Graham; Karlea L Kremer; Simon A Koblar; Monica A Hamilton-Bruce; Stephen B Pyecroft Journal: Stem Cell Rev Rep Date: 2018-08 Impact factor: 5.739