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Newly developed malignant degree evaluation and metabolic target therapy prediction for breast cancer using proteome and metabolome analysis

Research Project

Project/Area Number 22K08707
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionTohoku University

Principal Investigator

Tada Hiroshi  東北大学, 医学系研究科, 准教授 (50436127)

Co-Investigator(Kenkyū-buntansha) 権田 幸祐  東北大学, 医学系研究科, 教授 (80375435)
石田 孝宣  東北大学, 医学系研究科, 教授 (00292318)
原田 成美  東北大学, 大学病院, 助教 (70547413)
北村 成史  東北大学, 医学系研究科, 准教授 (50624912)
Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2023: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords乳癌 / メタボローム / プロテオーム
Outline of Research at the Start

近年、がんの「代謝経路・産物(メタボローム)」が癌の生存・増殖および物耐性の機構として注目されています。本研究ではこのメタボロームの解析と生体内のがん関連蛋白などを検出する蛍光ナノ粒子による高感度蛋白定量法を組み合わせ、乳癌細胞、マウス及びヒト乳癌組織のなかで、がんの抗がん剤耐性に関連したアミノ酸トランスポーターという物質の細胞・組織内での時間的・空間的不均一性を1細胞レベルに網羅的に評価する「プロテオーム・メタボローム比較解析」を開発し、新規乳癌悪性度診断及びメタボローム標的治療の最適治療アプローチに繋げることを目的としています。

Outline of Final Research Achievements

In this study, we investigated the metabolic characteristics of refractory breast cancer to develop new diagnostic and therapeutic approaches. When the three cell lines were treated with the chemotherapeutic agent doxorubicin, HCC38 showed high sensitivity, whereas MDA‐MB‐231 and MCF‐7 exhibited resistance. In the resistant lines, the mitochondrial membrane potential decreased, and activation of mitophagy suggested a mechanism for suppressing reactive oxygen species. Although HCC38 was glycolysis‐dominant, MDA‐MB‐231 and MCF‐7 were dependent on oxidative phosphorylation. Clinical specimen analysis revealed that DRP1 and Parkin were highly expressed in hormone receptor-negative cases, low expression of p62 was associated with an increased risk of recurrence, and FDG-PET exhibited limitations in its predictive accuracy.

Academic Significance and Societal Importance of the Research Achievements

本研究は、悪性度の高い乳がんが薬剤耐性を示す新たなメカニズムを明らかにしたものです。薬剤が効きにくい乳癌細胞では、従来多くのがん細胞が利用する糖代謝(グリコリシス)とは異なり、ミトコンドリアの酸化リン酸化でエネルギーを生成し、さらにミトコンドリアを分解・再利用するマイトファジー機構で薬剤ダメージを抑制していました。この特徴は、FDG-PETなどの従来画像診断では把握しづらい代謝様式であり、悪性度の高い乳がんの薬剤耐性を理解する学術的意義があります。これらミトコンドリア機能を標的とした新規診断法や治療薬の開発は、難治性TNBC患者の治療成績向上に繋がると期待されます。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (2 results)

All 2024

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Mitochondrial dynamics as a novel treatment strategy for triple‐negative breast cancer2024

    • Author(s)
      Wang Yuechen、Harada‐Shoji Narumi、Kitamura Narufumi、Yamazaki Yuto、Ebata Akiko、Amari Masakazu、Watanabe Mika、Miyashita Minoru、Tada Hiroshi、Abe Takaaki、Suzuki Takashi、Gonda Kohsuke、Ishida Takanori
    • Journal Title

      Cancer Medicine

      Volume: 13 Issue: 2 Pages: 6987-6987

    • DOI

      10.1002/cam4.6987

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Real-world analysis on molecular targeted therapy recommendations and attainment rates in cancer gene panel testing for metastatic breast cancer2024

    • Author(s)
      Hiroshi Tada, Minoru Miyashita, Narumi Harada, Yohei Hamanaka, Akiko Ebata, Miku Sato, Tokiwa Motonari, Mika Yanagaki, Asumi Yamazaki, Tomomi Kon, Takanori Ishida
    • Organizer
      ESMO 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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