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2021 Fiscal Year Final Research Report

Therapeutic strategy for IDH mutant gliomas with DNA hypermutation phenotype

Research Project

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Project/Area Number 19K09488
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionYokohama City University

Principal Investigator

TATEISHI Kensuke  横浜市立大学, 附属病院, 助教 (00512055)

Project Period (FY) 2019-04-01 – 2022-03-31
Keywords脳腫瘍 / 神経膠腫 / IDH変異 / DNA修復異常 / NAD+ / テモゾロミド / アルキル化剤
Outline of Final Research Achievements

We performed in vitro and in vivo experiments to elucidate the mechanism of DNA hypermutation and malignant transformation of gliomas after alkylating agent treatment. We also explored therapeutic targets for gliomas with DNA hypermutation. In this study, we could establish endogenous and exogenous IDH gliomas with DNA hypermutation. Using these models, we investigated the effects of DNA hypermutation on tumor progression. We also explored for therapeutic target molecules. We published peer reviewed international journals to demonstrate these data.

Free Research Field

脳神経外科学

Academic Significance and Societal Importance of the Research Achievements

IDH変異神経膠腫は30-40代の働き盛りの世代に好発して発症する疾患である。治療はアルキル化剤テモゾロミドを用いることが多いが、治療に伴うDNA修復異常が問題となっている。本研究ではDNA修復異常がもたらす影響を調べたところ治療によって生じるDNA高変異は腫瘍の増悪に及ぼす影響は強くないことをモデルを通じて明らかにした。このことは治療によるDNAレベルの異常は必ずしも患者さんの治療計画に影響を及ぼさないことが明らかになった。

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Published: 2023-01-30  

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