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2022 Fiscal Year Final Research Report

Metabolic transomics analysis of malignant evolving cancers that have acquired drug resistance

Research Project

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Project/Area Number 21K15068
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 43050:Genome biology-related
Research InstitutionKyushu University

Principal Investigator

Kodama Manabu  九州大学, 生体防御医学研究所, 助教 (70883833)

Project Period (FY) 2021-04-01 – 2023-03-31
Keywordsメタボロミクス / 小細胞肺がん
Outline of Final Research Achievements

We established cDDP-resistant strains from three small cell lung cancer cell lines and performed metabolomics analysis to monitor metabolic changes.The results revealed that glucose uptake and nucleic acid synthesis were enhanced in drug-resistant cancers compared to drug-sensitive cancers.
The results showed that the combination of nucleic acid synthesis inhibitors, a nucleic acid synthesis inhibitor, effectively inhibited nucleic acid synthesis, and that the sensitivity of drug-resistant cancers to nucleic acid synthesis inhibition was enhanced compared to that of drug-sensitive cancers.

Free Research Field

がん代謝

Academic Significance and Societal Importance of the Research Achievements

小細胞肺がんは第一選択薬であるcDDPに対し一過性に感受性を示すものの、即座に抵抗性を獲得する。また小細胞肺がんでcDDP治療抵抗性を有する患者の生存予後は半年から一年前後であり、著しく予後不良である。これらの背景を踏まえ、我々はcDDP耐性小細胞肺がんの代謝解析を実施し、薬剤耐性小細胞肺がんでは感受性がんと比較し核酸合成阻害に対する感受性かが亢進していることを明らかにした。この研究結果から、核酸合成阻害を主体とした化学療法は臨床的に問題になっている小細胞肺がんのcDDP耐性を克服するための新たなる治療介入法となる可能性がある。

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Published: 2024-01-30  

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