2009 Fiscal Year Final Research Report
Clarification of the mechanisms of regeneration of periodontal ligament using human clonal periodontal ligament progenitor cell line
| Project/Area Number |
19390486
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Conservative dentistry
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| Research Institution | Kyushu University |
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Principal Investigator |
MAEDA Hidefumi Kyushu University, 大学病院, 講師 (10284514)
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| Co-Investigator(Kenkyū-buntansha) |
AKAMINE Akifumi 九州大学, 大学院・歯学研究院, 教授 (00117053)
FUJII Shinsuke 九州大学, 大学病院, 助教 (60452786)
TOMOKIYO Atsushi 九州大学, 大学病院, 助教 (20507777)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 歯内治療学 |
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| Research Abstract |
In this project, we have developed two clonal human periodontal ligament (PDL) stem/progenitor cell lines, and characterized them as cell elements responsible for PDL regeneration. Although both of cell lines expressed the same surface markers as bone marrow-derived mesenchymal stem cells, these cell lines specifically included Periostin and Scleraxis specific for PDL tissues. As scaffold elements, the materials containing calcium components effectively induced the differentiation of these two undifferentiated cell lines into cementoblastic/osteoblastic cells. Furthermore, as signaling elements, we clarified the efficacies of Basic Fibroblast Growth Factor and Transforming Growth Factor-β1 in PDL regeneration. And Angiotensin II that played important roles in regulating cardiovascular systems was suggested to affect tissue regeneration valuably. We also disclosed the functions of PDL stem/progenitor cells, indicating that our developed cell lines secreted Nerve Growth Factor to induce the neural differentiation, and neural migration, and inhibit apoptosis of neural cells. These results suggested that PDL tissue regeneration was accomplished by combining these three elements functionally.
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Research Products
(27 results)
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[Journal Article] Artepillin C derived from propolis induces neurite outgrowth in PC12m3 cells via ERK and p38 MAPK pathways.2008
Author(s)
Kano Y, Horie N, Doi S, Aramaki F, Maeda H, Hiragami F, Kawamura K, Motoda H, Koike Y, Akiyama J, Eguchi S, Hashimoto K
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Journal Title
Neurochem Res 33(9)
Pages: 1795-803
Peer Reviewed
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[Remarks] ホームページ等該当なし
