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2022 Fiscal Year Final Research Report

Study of Protein-Protein Interaction Induced by Marine Natural Products

Research Project

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Project/Area Number 20H02865
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Kigoshi Hideo  筑波大学, 数理物質系, 教授 (90169839)

Co-Investigator(Kenkyū-buntansha) 吉田 将人  筑波大学, 数理物質系, 准教授 (80511906)
大好 孝幸  筑波大学, 数理物質系, 助教 (90639303)
Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsアプリロニンA / アクチン / チューブリン / 高活性アナログ
Outline of Final Research Achievements

Marine macrolide aplyronine A induces protein-protein interaction between two cytoskeletal proteins, actin and tubulin, and exhibits a potent antitumor activity. To clarify the mechanism of action and develop highly active analogs, we have synthesized aplyronine analogs and an analog of scytophycin, which possesses similar structure to aplyronine and binds to actin.
As a result, we synthesized in 40 steps an aplyronine analog that exhibits biological activity similar to that of aplyronine. And we synthesized scytophycin macrolactone analog, which possesses a chemically reactive epoxide group, which is expected to be a key functional group as a chemical probe.

Free Research Field

天然物化学

Academic Significance and Societal Importance of the Research Achievements

天然有機小分子と生体高分子の超分子を精密に解析して得られる知見は、有機小分子による分子認識機構を解明するとともに、天然有機小分子の生物学役割を理解し、医薬学的応用研究に展開する上で必須である。しかも、天然物の持つ構造多様性は、コンビナトリアル化学などの他の手法では入手できないので、天然物創薬分野へのアカデミアの挑戦が期待されている。本研究は、これまでにない型の抗腫瘍性作用機序を明らかにするための基礎的知見となる。この研究が完了すれば、新しい型(ぴか新)の抗がん剤に繋がる情報となる。

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Published: 2024-01-30  

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