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2022 Fiscal Year Final Research Report

Screening of compound library for inhibitors of PRIP

Research Project

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Project/Area Number 20K21681
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionKyushu University

Principal Investigator

Matsuda Miho  九州大学, 歯学研究院, 准教授 (40291520)

Project Period (FY) 2020-07-30 – 2023-03-31
Keywords骨芽細胞分化 / 阻害剤 / PRIP
Outline of Final Research Achievements

We tried to search for inhibitors of PRIP, a novel molecule regulating bone metabolism, to investigate the effects of the inhibiters on bone volume and the density in vivo. PRIP (phospholipase C-related, but catalytically inactive protein) is involved in the regulation of bone formation through negatively controlling osteoblast differentiation, and the inhibitors of PRIP would be able to suppress the decrease of bone volume and the density, or maintain bone health. We constructed the GFP vector driven by osteocalcin gene promoter, to generate GFP knock-in MC3T3-E1 cells. Now search for the inhibitors are in progress, using the knock-in cells and the compound library.

Free Research Field

骨代謝制御 生殖制御

Academic Significance and Societal Importance of the Research Achievements

超高齢社会の日本で増加する骨粗鬆症は、骨折だけでなく各種骨関連疾患を引き起こすため、その治療法の確立は急務である。近年、様々な作用機序の治療薬が登場しているが、例えばビスフォスフォネートによる顎骨壊死やエストロゲン製剤による視力障害など副作用を有するものが多い。また、低ホスファターゼ症へのALP補充療法においても、乳児型での高カルシウム血症発症などの副作用が根本的治療を阻んでいる。このような中、新規骨代謝関連分子であるPRIPの阻害剤が見いだされれば、骨代謝制御の新たな分子基盤の解明に貢献し骨関連疾患のメカニズム解明にも繋がり、それに基づく治療法開発のbreak throughになりえる。

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Published: 2024-01-30  

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