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2023 Fiscal Year Final Research Report

5ALA-photodynamic therapy targeting cancer specific metabolisms

Research Project

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Project/Area Number 21K07191
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionMie University

Principal Investigator

Hori Hiroki  三重大学, 医学系研究科, 教授 (40252366)

Co-Investigator(Kenkyū-buntansha) 森山 貴也  三重大学, 医学部附属病院, その他 (50625689)
Project Period (FY) 2021-04-01 – 2024-03-31
Keywords神経芽腫細胞 / 光線力学療法 / 5アミノレブリン酸 / 解糖系阻害薬 / 6アミノニコチン酸 / 脂質酸化
Outline of Final Research Achievements

We conducted a study to assess whether inhibitors of glycolysis can enhance the cytotoxic effect of 5-aminolevulic acid-photodynamic therapy against neuroblastoma cells and found that 6-aminonicotinamide (6AN), an inhibitor of glucose-6-phosphate dehydrogenase, is a promising agent for its combination. 6AN reduced ratios of NADPH/NADP+ and GSH/GSSG which might promote accumulation of lipid peroxidation. This cytotoxic effect was induced with necrosis following damages of cell membrane by the lipid oxidation.

Free Research Field

小児がん

Academic Significance and Societal Importance of the Research Achievements

小児がん治療後晩期合併症を軽減し、低中所得国でも安価で実施できる新しいがん治療の選択肢を提供することを目的に本研究を実施した。研究結果は、G6PD阻害薬が5ALA-PDTによる細胞死誘導を効果的に増強することを示した。解糖系阻害薬は分子標的薬等と比較して安価であり、経済的で副作用の少ない光線力学療法の開発に本研究成果が活用されることが期待される。

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Published: 2025-01-30  

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