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2022 Fiscal Year Final Research Report

Identification and Functional Analysis of the Target Molecule of Terrein, a Small Molecule Compound for Application in the Super-Aging Society

Research Project

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Project/Area Number 19K10108
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57030:Conservative dentistry-related
Research InstitutionOkayama University

Principal Investigator

Omori Kazuhiro  岡山大学, 医歯薬学域, 准教授 (20549860)

Co-Investigator(Kenkyū-buntansha) 中山 真彰  岡山大学, 医歯薬学域, 准教授 (10579105)
竹内 恒  国立研究開発法人産業技術総合研究所, 生命工学領域, 研究グループ長 (20581284)
高柴 正悟  岡山大学, 医歯薬学域, 教授 (50226768)
萬代 大樹  岐阜医療科学大学, 薬学部, 准教授 (60534427)
Project Period (FY) 2019-04-01 – 2023-03-31
Keywordsterrein / 歯周病 / IL-6 / TNF-alph / RANKL / PKC
Outline of Final Research Achievements

In this study, we focused on terrein, a fungal secondary metabolite with anti-inflammatory properties, and investigated its effects on inflammatory bone-destroying pathologies both in vitro and in vivo, and explored the potential of terrein as a therapeutic agent for bone-destroying diseases. Our results showed that 1) terrein significantly suppressed the expression of NFATc1, a key factor for RANKL-induced osteoclast differentiation, and 2) the PKC pathway was involved in the suppression of NFATc1 expression. Furthermore, 3) TNF-alpha production was suppressed and alveolar bone resorption was inhibited in a mouse ligature-induced periodontitis model. These results provide a partial explanation for the anti-inflammatory and osteoclast differentiation inhibitory effects of terrein.

Free Research Field

歯科保存学分野

Academic Significance and Societal Importance of the Research Achievements

一連の研究成果は真菌二次代謝産物terreinの破骨細胞分化抑制効果,さらにその分子メカニズムの一端をin vitroおよびin vivoで証明したものである。今後,terreinの抗炎症作用,破骨細胞分化抑制作用に着目して,様々な疾患モデルマウスでの検討を行なっていく上で重要な研究成果であると考える。なお,報告者が知る限り,有機合成したterreinを用いた研究を行なっているのは国内外で本研究グループのみである。そのため,有機化学と分子生物学との融合アプローチが可能な点において本研究分野のパイオニアを目指せると考える。

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Published: 2024-01-30  

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