2023 Fiscal Year Final Research Report
Possible periodontal regenerative therapy by stem cell mobilization
Project/Area Number |
21K16991
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 57030:Conservative dentistry-related
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Research Institution | Osaka University |
Principal Investigator |
Sakashita Hiromi 大阪大学, 大学院医学系研究科, 特任助教(常勤) (90779092)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | 歯周組織再生 / 幹細胞 / 歯根膜 / HMGB1ペプチド / PDGFRα |
Outline of Final Research Achievements |
The periodontal ligament contains a stem cell population and plays an essential role in periodontal tissue homeostasis and regeneration. However, the detailed mechanism remains unclear. This study focused on PDGFRα positive cells as the stem cell population and traced their lineage in vivo. We also investigated the role of PDGFRα signaling in this lineage. We found that PDGFRα positive cells, independently of PDGFRα signaling, differentiated into periodontal ligament fibroblasts, osteoblasts, and cementoblasts in a cell-autonomous manner.
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Free Research Field |
歯周病学
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Academic Significance and Societal Importance of the Research Achievements |
歯周組織におけるPDGFRα陽性細胞やPDGFRαシグナルの役割を明らかにした本研究成果により、PDGFRα陽性細胞をターゲットにした歯周組織再生療法開発に向けた基盤情報が得られました。今後、同細胞が誘導される機序を解明することにより、より効率的な再生療法の開発が期待できます。また歯周組織において初めて、少数の細胞に遺伝子変異を起こすと同時に、同細胞の運命を生体内で追跡する、モザイク変異解析を応用しました。
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