Document Detail

The promotional effect of IL-22 on mineralization activity of periodontal ligament cells.
MedLine Citation:
PMID:  22537848     Owner:  NLM     Status:  Publisher    
OBJECTIVES: Interleukin (IL)-22 acts on non-immune cells to induce anti-microbial responses, protection from tissue damage, and enhance cell regeneration. However, little is known about the involvement of IL-22 in periodontal biology. This study investigated the biological effects of IL-22 on periodontal ligament (PDL) cells as part of studies to assess the involvement of IL-22 in periodontal disease. MATERIALS AND METHODS: Gene expression levels of IL-22 and its receptors in PDL cells and gingival tissue samples were evaluated by real-time PCR. Proliferative responses and mineralized-matrix forming activities of PDL cells were examined in the presence and absence of IL-22. RESULTS: In contrast to the expression of IL-22 receptors detected in PDL tissues and their cell lines, gingival tissues showed modest or no gene expressions of IL-22. The production of several cytokines including IL-11, IL-8 and CCL2 was upregulated by IL-22 treatment of PDL cells in a dose-dependent manner. IL-22 treatment had no effect on the proliferative response in PDL cells. Meanwhile, IL-22 precipitated mineralized nodule formation and induced gene expressions of RUNX2, MSX2 and osteocalcin in PDL cells, suggesting that IL-22 enhances the mineralized matrix-forming activities of PDL cells. CONCLUSION: IL-22 has the potential to promote mineralizing activity in PDL cells and to develop appropriate regenerative therapy.
Nahoko Kato-Kogoe; Toshihiro Nishioka; Mutsuki Kawabe; Fusa Kataoka; Koji Yamanegi; Naoko Yamada; Masaki Hata; Tadashi Yamamoto; Keiji Nakasho; Masahiro Urade; Nobuyuki Terada; Hideki Ohyama
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-24
Journal Detail:
Title:  Cytokine     Volume:  -     ISSN:  1096-0023     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9005353     Medline TA:  Cytokine     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Department of Pathology, Hyogo College of Medicine, Nishinomiya, Japan.
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