| Project/Area Number |
16K07708
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Bioorganic chemistry
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
Konoki Keiichi
Kitagawa Wataru
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | クラスター効果 / monensin / イオンチャネル / cluster effect / ionophore / proton channel / 抗菌剤 / 有機合成化学 / 天然物化学 / ポリエーテル |
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| Outline of Final Research Achievements |
Monensin (Mon) is an ionophore natural product exhibiting potent cytotoxic activity. Meanwhile, computational analysis anticipated that its methyl ester (MME) might act as an ion channel when MMEs aggregate to be an octamer. This result would suggest that clusterization of bioactive compounds might change their mechanism of activity, by which the intensity of activity of some bioactive natural products could also be improved compared to the original compounds. Thus, we embarked on the synthetic study of a monensin octamer to prove the anticipation. If this methodology could be applied to various bioactive compounds, this can lead to a novel concept for drug discovery research.
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| Academic Significance and Societal Importance of the Research Achievements |
薬剤（多剤）耐性菌への対処は人類にとって喫緊の課題となっている。その一方で，新たに開発される（発見される）薬剤の種類は頭打ちの傾向にあり，新たな創薬方法論の開発が期待される。これまでは化学構造の変換による方法がもっぱら実施されていたが，物理的な効果により既存の天然物の活性強度を簡便に強化できれば, 無名の低活性天然物が強力な抗菌剤へと生まれ変わる可能性がある。これにより，薬剤候補化合物数の増加に貢献できるとともに，既存の化学構造改変法と異なる新たな創薬方法論を提示できる。
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