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Anti-inflammatory effect of pachymic acid promotes odontoblastic differentiation via HO-1 in dental pulp cells.
MedLine Citation:
PMID:  22849812     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: Heme oxygenase-1 (HO-1) is contributed to odontoblast differentiation in human dental pulp cells (HDPCs). In this study, pachymic acid from mushroom Formitopsis niagra is examined to determine whether it affects pulpal inflammation and promotes odontogenesis via HO-1 gene expression. MATERIALS AND METHODS: The HDPCs were given H(2) O(2) for inflammation. The anti-inflammatory character and odontoblast differentiation by pachymic acid were analyzed by Western blotting, alkaline phosphatase activity, and alizarin red S staining. To understand the mechanism of pachymic acid via HO-1 induction, the cells were treated with zinc protoporphyrin IX (ZnPP: HO-1 inhibitor). RESULTS: H(2) O(2) induced pulp inflammation and disturbed odontoblast differentiation. However, the HDPCs treated with pachymic acid affected anti-inflammatory effect and induction of odontoblast differentiation through increasing HO-1 expression. In addition, pachymic acid has potent cytoprotection and mineralization under H(2) O(2) treatment. Furthermore, pachymic acid significantly suppressed nuclear factor-kappa B (NF-κB) translocation into nucleus and induced NE-E2-related factor-2 (Nrf2) translocation into nucleus. Overall, NF-κB and Nrf2 translocation were regulated by the HO-1 pathway. CONCLUSIONS: The pachymic acid showed anti-inflammatory function and odontoblast differentiation via HO-1 pathway. These results suggested that pachymic acid may be applicable for prevention of oral inflammation or to improve dentin mineralization against several stresses.
Authors:
Y-H Lee; N-H Lee; G Bhattarai; G-E Kim; I-K Lee; B-S Yun; P-H Hwang; H-K Yi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-7
Journal Detail:
Title:  Oral diseases     Volume:  -     ISSN:  1601-0825     ISO Abbreviation:  Oral Dis     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-8-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508565     Medline TA:  Oral Dis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 John Wiley & Sons A/S.
Affiliation:
Department of Oral Biochemistry, BK21 program, Jeonju, Korea.
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