Document Detail

A two-step strategy for neuronal differentiation in vitro of human dental follicle cells.
MedLine Citation:
PMID:  19394129     Owner:  NLM     Status:  MEDLINE    
Human dental follicle cells (DFCs) derived from wisdom teeth are precursor cells for cementoblasts. In this study, we recognized that naïve DFCs express constitutively the early neural cell marker beta-III-tubulin. Interestingly, DFCs formed beta-III-tubulin-positive neurosphere-like cell clusters (NLCCs) on low-attachment cell culture dishes in serum-replacement medium (SRM). For a detailed examination of the neural differentiation potential, DFCs were cultivated in different compositions of SRM containing supplements such as N2, B27, G5 and the neural stem cell supplement. Moreover, these cell culture media were combined with different cell culture substrates such as gelatin, laminin, poly-L-ornithine or poly-L-lysine. After cultivation in SRM, DFCs differentiated into cells with small cell bodies and long cellular extrusions. The expression of nestin, beta-III-tubulin, neuron-specific enolase (NSE) and neurofilament was up-regulated in SRM supplemented with G5, a cell culture supplement for glial cells, and the neural stem cell supplement. DFCs formed NLCCs and demonstrated an increased gene expression of neural cell markers beta-III-tubulin, NSE, nestin and for small neuron markers such as neuropeptides galanin (GAL) and tachykinin (TAC1) after cultivation on poly-L-lysine. For a further neural differentiation NLCC-derived cells were sub-cultivated on laminin and poly-L-ornithine cell culture substrate. After 2 weeks of differentiation, DFCs exposed neural-like cell morphology with small neurite-like cell extrusions. These cells differentially express neurofilament and NSE, but only low levels of beta-III-tubulin and nestin. In conclusion, we demonstrated the differentiation of human DFCs into neuron-like cells after a two-step strategy for neuronal differentiation.
Florian Völlner; Wolfgang Ernst; Oliver Driemel; Christian Morsczeck
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-04-25
Journal Detail:
Title:  Differentiation; research in biological diversity     Volume:  77     ISSN:  1432-0436     ISO Abbreviation:  Differentiation     Publication Date:  2009 Jun 
Date Detail:
Created Date:  2009-06-09     Completed Date:  2009-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401650     Medline TA:  Differentiation     Country:  England    
Other Details:
Languages:  eng     Pagination:  433-41     Citation Subset:  IM    
Institute of Human Genetics, Franz-Josef Strauss Allee 11, University of Regensburg, 93053 Regensburg, Germany.
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MeSH Terms
Biological Markers
Cell Differentiation / physiology*
Cells, Cultured
Culture Media, Serum-Free
Dental Sac / cytology*
Galanin / metabolism
Gelatin / metabolism
Intermediate Filament Proteins / genetics,  metabolism
Laminin / metabolism
Nerve Tissue Proteins / genetics,  metabolism
Neurons / cytology,  physiology*
Peptides / metabolism
Phosphopyruvate Hydratase / genetics,  metabolism
Polylysine / metabolism
Substrate Specificity
Tachykinins / metabolism
Time Factors
Tubulin / genetics,  metabolism
Young Adult
Reg. No./Substance:
0/Biological Markers; 0/Culture Media, Serum-Free; 0/Intermediate Filament Proteins; 0/Laminin; 0/Nerve Tissue Proteins; 0/Peptides; 0/Tachykinins; 0/Tubulin; 0/nestin; 25104-12-5/polyornithine; 25104-18-1/Polylysine; 88813-36-9/Galanin; 9000-70-8/Gelatin; EC Hydratase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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