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Development of novel treatment for triple negative breast cancer by controlling microtubule dynamics

Research Project

Project/Area Number 20K16199
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49020:Human pathology-related
Research InstitutionGunma University of Health and Welfare

Principal Investigator

Handa Tadashi  群馬医療福祉大学, 医療技術学部, 准教授 (90866229)

Project Period (FY) 2020-04-01 – 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 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsStathmin1 / EMT / phosphorylated STMN1 / TNBC / STMN1 / pSTMN1 / CSCs / リン酸化STMN1 / ホルモン依存性乳癌 / 乳癌 / 組織マイクロアレイ
Outline of Research at the Start

これまで申請者と所属研究グループは、様々な固形癌で Stathmin1(STMN1)の発現意義と機能を検討し報告してきた。乳癌では、STMN1高発現がTNBC患者の予後不良、がん悪性度亢進、がん幹細胞マーカー発現と有意に関連があることを報告した。またリン酸化STMN1についての先行研究で、乳癌臨床検体において各種リン酸化STMN1の蓄積が予後不良、予後良好のどちらにも関与することが報告されている。このような研究背景からこれまで検討されていない難治性のTNBCに着目し、TNBCにおけるリン酸化STMN1発現意義とSTMN1リン酸化酵素の阻害剤の新規治療ツールとしての可能性を検討することとした。

Outline of Final Research Achievements

Stathmin1 (STMN1) is closely regulated by phosphorylation at four sites, but no studies have examined phosphorylated STMN1 (pSTMN1) expression and clinicopathological factors in breast cancer patients. In this study, we analyzed the expression levels of four pSTMN1s (Ser16, Ser25, Ser38, and Ser63) immunohistochemically in 213 breast cancer cases.
We also included the expression levels of STMN1, which we previously reported in our study, in our detailed examination.
Patients with higher expression levels of STMN1 had higher expression levels of Ser38, and there was a significant positive correlation. Furthermore, among the four types of phosphorylated STMN1, Ser38 was found to be the phosphorylation site most involved in the malignancy of TNBC.

Academic Significance and Societal Importance of the Research Achievements

pSTMN1(Ser16、Ser25、Ser38、Ser63)は主に乳癌の細胞質で発現し、非癌乳腺組織では低発現であった。中でもpSTMN1(Ser38)の過剰発現は、トリプルネガティブ乳癌(TNBC)の表現型、間葉系マーカー、癌幹細胞マーカーの高発現など腫瘍の進行性の特徴と関連していた。
以上のことからSTMN1のリン酸化は、STMN1の機能制御を介して、臨床病理学的因子、乳癌のサブタイプ、間葉系マーカーや乳がん幹細胞マーカーの発現と関連している可能性がある。またSTMN1のSer38リン酸化は、間葉系マーカーの発現や癌幹細胞性に関連する高悪性度TNBCの新規バイオマーカーとなる可能性がある。

Report

(6 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022 2021 2020

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (5 results) Book (1 results)

  • [Journal Article] Significance of MUC1 and β-Catenin Localization in Mucinous Carcinoma of the Breast2024

    • Author(s)
      SUGAWARA-KOMATSU KEI、FUJII TAKAAKI、KUROZUMI SASAGU、ISHIKAWA HITOSHI、KATAYAMA AYAKA、HANDA TADASHI、TOUGOU MARIA、SANO TAKAAKI、MATSUMOTO HIROSHI、KUROSUMI MASAFUMI、HORIGUCHI JUN、SHIRABE KEN、OYAMA TETSUNARI
    • Journal Title

      Anticancer Research

      Volume: 44 Pages: 2689~2698

    • DOI

      10.21873/anticanres.17076

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association Between High Expression of Phosphorylated-STMN1 and Mesenchymal Marker Expression and Cancer Stemness in Breast Cancer2023

    • Author(s)
      HANDA TADASHI、YOKOBORI TAKEHIKO、OBAYASHI SAYAKA、FUJII TAKAAKI、SHIRABE KEN、OYAMA TETSUNARI
    • Journal Title

      Anticancer Research

      Volume: 43 Pages: 5341~5348

    • DOI

      10.21873/anticanres.16737

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Blood Cell Destruction by Measuring Occlusion Distance2023

    • Author(s)
      Kato Shota、Handa Tadashi、Yoshioka Jun、Nakadate Kazuhiko、Nomura Yasutomo、Kijima Hitoshi
    • Journal Title

      WSEAS TRANSACTIONS ON BIOLOGY AND BIOMEDICINE

      Volume: 20 Pages: 313~320

    • DOI

      10.37394/23208.2023.20.32

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of PD-L1 Expression during the Progression of Submucosal Gastric Cancer2020

    • Author(s)
      Ubukata Yasunari、Ogata Kyoichi、Sohda Makoto、Yokobori Takehiko、Shimoda Yuki、Handa Tadashi、Nakazawa Nobuhiro、Kimura Akiharu、Kogure Norimichi、Sano Akihiko、Sakai Makoto、Ogawa Hiroomi、Kuwano Hiroyuki、Shirabe Ken、Oyama Tetsunari、Saeki Hiroshi
    • Journal Title

      Oncology

      Volume: 99 Pages: 15~22

    • DOI

      10.1159/000509033

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mac-2-binding protein glycan isomer enhances the aggressiveness of hepatocellular carcinoma by activating mTOR signaling2020

    • Author(s)
      Dolgormaa Gantumur、Harimoto Norifumi、Ishii Norihiro、Yamanaka Takahiro、Hagiwara Kei、Tsukagoshi Mariko、Igarashi Takamichi、Watanabe Akira、Kubo Norio、Araki Kenichiro、Handa Tadashi、Yokobori Takehiko、Oyama Tetsunari、Kuwano Hiroyuki、Shirabe Ken
    • Journal Title

      British Journal of Cancer

      Volume: 123 Pages: 1145~1153

    • DOI

      10.1038/s41416-020-0971-y

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Diagnostic value of 18F-FDG-PET to predict the tumour immune status defined by tumoural PD-L1 and CD8+tumour-infiltrating lymphocytes in oral squamous cell carcinoma2020

    • Author(s)
      Togo Maria、Yokobori Takehiko、Shimizu Kimihiro、Handa Tadashi、Kaira Kyoichi、Sano Takaaki、Tsukagoshi Mariko、Higuchi Tetsuya、Yokoo Satoshi、Shirabe Ken、Oyama Tetsunari
    • Journal Title

      British Journal of Cancer

      Volume: 122 Pages: 1686~1694

    • DOI

      10.1038/s41416-020-0820-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nintedanib inhibits intrahepatic cholangiocarcinoma aggressiveness via suppression of cytokines extracted from activated cancer-associated fibroblasts2020

    • Author(s)
      Yamanaka Takahiro、Harimoto Norifumi、Yokobori Takehiko、Muranushi Ryo、Hoshino Kouki、Hagiwara Kei、Gantumur Dolgormaa、Handa Tadashi、Ishii Norihiro、Tsukagoshi Mariko、Igarashi Takamichi、Tanaka Hiroshi、Watanabe Akira、Kubo Norio、Araki Kenichiro、Shirabe Ken
    • Journal Title

      British Journal of Cancer

      Volume: 122 Pages: 986~994

    • DOI

      10.1038/s41416-020-0744-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 感染予防に対する意識調査-学生視点から-2022

    • Author(s)
      松崎 菜央、半田 正、菅野 佳之、村上 博和
    • Organizer
      第16回日本臨床検査学教育学会学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 高大接続授業から生命倫理教育と多職種連携を考える2022

    • Author(s)
      岡野 康幸、半田 正
    • Organizer
      第34回日本生命倫理学会年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 乳癌サブタイプにおけるリン酸化STMN1発現の臨床的意義2021

    • Author(s)
      半田正、小山徹也
    • Organizer
      第68回日本臨床検査医学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Triple negative breast cancer(TNBC)における新規治療標的候補Fibrillin 2(FBN2)発現の臨床的意義2020

    • Author(s)
      金澤 彩乃, 半田 正, 片山 彩香, 横堀 武彦, 山根 有人, 川端 麗香, 藤井 孝明, 佐野 孝昭, 西山 正彦, 小山 徹也
    • Organizer
      第109回日本病理学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 胃癌の初期浸潤における免疫チェックポイントタンパク発現の意義2020

    • Author(s)
      生方 泰成, 下田 雄輝, 半田 正, 緒方 杏一, 中澤 信博, 佐野 彰彦, 原 圭吾, 酒井 真, 宗田 真, 大曽根 勝也, 岡田 拓久, 加藤 隆二, 茂木 陽子, 小川 博臣, 横堀 武彦, 小山 徹也, 調 憲, 佐伯 浩司
    • Organizer
      第120回日本外科学会定期学術集会
    • Related Report
      2020 Research-status Report
  • [Book] 病理学実習の手引き-自分だけの国試対策ノート-2024

    • Author(s)
      半田正
    • Total Pages
      222
    • Publisher
      ビジネス実用社
    • ISBN
      978-4-910911-21-2
    • Related Report
      2024 Annual Research Report

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Published: 2020-04-28   Modified: 2026-01-16  

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