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2022 Fiscal Year Final Research Report

Study of effects of radical scavenger edaravone and adipose stem cell exosome on X-Ray induced salivary gland damages

Research Project

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Project/Area Number 18K09824
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionThe Nippon Dental University

Principal Investigator

Nasu Masanori  日本歯科大学, 生命歯学部, 教授 (50130688)

Co-Investigator(Kenkyū-buntansha) 堀江 哲郎  日本歯科大学, 生命歯学部, 講師 (10508675)
三橋 扶佐子  日本歯科大学, 生命歯学部, 助教 (60187896)
井出 吉昭  日本歯科大学, 生命歯学部, 准教授 (70409225)
小林 朋子  日本歯科大学, 生命歯学部, 講師 (10548283)
Project Period (FY) 2018-04-01 – 2023-03-31
Keywordsエダラボン / 培養細胞 / 放射線 / X線防御効果
Outline of Final Research Achievements

We focused on the free radical scavenging ability of edaravone and studied its mitigating effect on the effects of radiation injury on normal cells during radiotherapy. In this study, we investigated the radioprotective effect of edaravone on X-irradiated vascular endothelial cells. As a result, although edaravone itself was cytotoxic, the concentration range of edaravone that exhibited radioprotective effects was clarified. In addition, the reactive oxygen species (ROS) produced by cells irradiated with X-rays were measured using CellROX, a reagent that detects ROS species. The results suggest the usefulness of edaravone as a radioprotective agent.

Free Research Field

放射線

Academic Significance and Societal Importance of the Research Achievements

我々は本研究において、エダラボンの放射線治療における放射線障害の軽減作用について検討を行った。エダラボンは脳梗塞時の能保護やALSの治療薬として、ラジカルスカベンジャーで唯一承認された薬品である。承認済み薬品のため、安全性の検討が広くなされ、放射線障害軽減も認められると、非常に有用な薬品となる。またエダラボンは脂肪親和性が強くこれまで投与ルートも点滴に限られてきたが、昨年、懸濁状態を変え、経口投与が可能となった製剤が承認された。今後のエダラボンの臨床使用の範囲拡大が期待される。

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Published: 2024-01-30  

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