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Proinflammatory cytokines induce odontogenic differentiation of Dental Pulp derived Stem Cells.
MedLine Citation:
PMID:  21976040     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Post-natal dental pulp stem cells (DPSCs) represent a unique precursor population in the dental pulp, which have multipotential and harbor great potential for tissue engineering purposes. However, for therapy applications, transplanted cells are often exposed to unfavorable conditions such as cytokines released from necrotic or inflammatory cells in injured tissues. It is not clear how stem cells exposed to these conditions changes in their characteristics. In this study, the effects of pro-inflammatory cytokines, such as IL-1 and TNF, on DPSCs were investigated. Cells were treated with IL-1, TNF, or both for 3, 7, and 12 days. The cultures were evaluated for cell proliferation, ALP activity, and real-time PCR. We found that a short treatment (3 days) of pro-inflammatory cytokines induced the odontogenic differentiation of DPSCs. Furthermore, post 3-day's treatment with pro-inflammatory cytokines, the cell-scaffold complexes were implanted subcutaneously in mice for 8 weeks. Histological analysis demonstrated that the cultures gave obviously mineralized tissue formation, especially for both IL-1 and TNF applied. These data suggest that IL-1 and TNF produced in the early inflammatory reaction may induce the mineralization of DPSCs. J. Cell. Biochem. © 2011 Wiley Periodicals, Inc.
Authors:
Xuechao Yang; Siyuan Zhang; Xin Pang; Mingwen Fan
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-4
Journal Detail:
Title:  Journal of cellular biochemistry     Volume:  -     ISSN:  1097-4644     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8205768     Medline TA:  J Cell Biochem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley Periodicals, Inc.
Affiliation:
Key Laboratory of Oral Biomedicine of Ministry of Education and Department of Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei Province, P.R. China.
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