2022 Fiscal Year Final Research Report
Effect of lipid hydroperoxide on cancer progression and its mechanism of action
Project/Area Number |
20K05934
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 38050:Food sciences-related
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Research Institution | Tohoku University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
仲川 清隆 東北大学, 農学研究科, 教授 (80361145)
伊藤 隼哉 東北大学, 農学研究科, 助教 (50781647)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 過酸化脂質 / テロメラーゼ |
Outline of Final Research Achievements |
Cellular telomerase activity was increased by lipid hydroperoxide (2-10 μM) in HCT116 human colorectal cancer cells after culturing for 24 hours. As a molecular mechanism, lipid hydroperoxide activated the oncogene c-Myc and telomerase catalytic subunit hTERT via induction of the MAPK pathway, thereby enhancing telomerase activity. Utilizing organoids derived from cancer patients, we investigated the effects of lipid peroxide, and found that activation of telomerase was also observed in colorectal cancer organoids. Simultaneous treatment of HCT116 cells with lipid hydroperoxide and vitamin E (α-tocopherol) inhibited telomerase activation by lipid hydroperoxide.
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Free Research Field |
食品機能学
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Academic Significance and Societal Importance of the Research Achievements |
過酸化脂質による癌のテロメラーゼ活性化は過去に無い知見であり、抗酸化物質がその作用を抑制することも初めて明らかにしたことから、本研究の独自性・新規性は極めて高い。本研究により得られた成果は食品学、栄養学、生化学にとどまらず、薬学や医学の分野に大きく展開できると考えられ、高齢化が進む日本人の健康維持への貢献 (健康寿命の延伸やQOL(quality of life)の向上)、さらには増大する国民医療費の抑制にもつながるため、社会的意義と波及性が極めて大きい。即ち、本研究成果は、超高齢社会に適した食事・医薬の創生に貢献するものである。
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