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2023 Fiscal Year Final Research Report

Development of new preventive strategies for Cisplatin-Induced ototoxicity

Research Project

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Project/Area Number 22K20739
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0802:Biomedical structure and function and related fields
Research InstitutionOsaka University

Principal Investigator

Wakai Eri  大阪大学, 大学院医学系研究科, 助教 (40964896)

Project Period (FY) 2022-08-31 – 2024-03-31
Keywordsシスプラチン / 難聴
Outline of Final Research Achievements

Cisplatin-induced ototoxicity is observed in 40-80% of patients receiving chemotherapy with cisplatin and has unfavorable influences on the patient's quality of life. In this study, we used FAERS data to identify protective agents against cisplatin-induced ototoxicity and examined the protective effects of potential agents in a mouse model. Lansoprazole was selected as a candidate drug from the FAERS database as a potential protective agent against cisplatin-induced ototoxicity. Cisplatin-treated mice showed increased ABR thresholds in the high-frequency range at 32 kHz compared to controls. Co treatment with cimetidine reduced ABR thresholds compared to cisplatin alone. However,  co-treatment with lansoprazole did not change ABR thresholds compared to cisplatin alone.

Free Research Field

薬理学

Academic Significance and Societal Importance of the Research Achievements

本研究では、FDA大規模有害事象報告(FAERS)データベースの解析から副作用の少ないランソプラゾールを見出した。さらにその効果をマウス内耳に対して組織学的・分子生物学的・in vivo生理学的手法により検証した。このような、臨床のデータサイエンスと多角的な実験科学的アプローチを融合した治療薬開発は、内耳疾患ではかつてない先進的な試みである。また、安全性が認められている既存承認薬を活用することにより、臨床の現場での使用を迅速に実現できる。シスプラチン難聴は成人・小児を問わず深刻な副作用であることから、本研究は社会的意義が極めて高い。

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Published: 2025-01-30  

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