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In vitro effects of ascorbic acid and β-glycerophosphate on human gingival fibroblast cells.
MedLine Citation:
PMID:  22677409     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Ascorbic acid (AA) and β-glycerophosphate (βG) are considered in vitro osteogenic factors important to the differentiation of osteoblastic progenitor and dental pulp cells into mineralized tissue-forming cells. So, the present study investigated in vitro if these mineralizing inducible factors (AA and βG) could influence differentiation of human gingival fibroblasts when compared with human pulp cells and osteogenic cells derived from rat calvaria cultured. The expression of osteopontin (OPN) and osteoadherin (OSAD) was analyzed by indirect immunofluorescence, immunocytochemistry as well as Western-blotting. In addition, the main ultrastructural aspects were also investigated. No mineralized matrix formation occurred on gingival fibroblasts induced with AA+βG. On these cells, no expression of OPN and OSAD was observed when compared with pulp cells, pulp cells induced with AA+βG as well as osteogenic cells. Ultrastructure analysis additionally showed that gingival fibroblasts exhibited typical fibroblast morphology with no nodule formation. The present findings showed that AA and βG could not promote a mineralized cell differentiation of human gingival fibroblasts and confirm that human dental pulp cells, as the osteogenic cells, are capable to form a mineralized extracellular.
Authors:
Elizabeth F Martinez; Tatiani A G Donato; Victor E Arana-Chavez
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-5
Journal Detail:
Title:  Tissue & cell     Volume:  -     ISSN:  1532-3072     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0214745     Medline TA:  Tissue Cell     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Laboratory of Oral Biology, School of Dentistry, University of São Paulo, Av. Prof. Lineu Prestes, 2227, CEP 05508-900, São Paulo, SP, Brazil; Laboratory of Cell Culture, São Leopoldo Mandic Institute and Research Center, Rua José Rocha Junqueira, 13, CEP 13045-610, Campinas, SP, Brazil.
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