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Elucidating the mechanisms to induce ameloblastoma and its trial for the clinical setting

Research Project

Project/Area Number 20K09906
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57020:Oral pathobiological science-related
Research InstitutionKyushu University

Principal Investigator

Fujii Shinsuke  九州大学, 歯学研究院, 講師 (60452786)

Co-Investigator(Kenkyū-buntansha) 清島 保  九州大学, 歯学研究院, 教授 (20264054)
自見 英治郎  九州大学, 歯学研究院, 教授 (40276598)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsArl4c / エナメル上皮腫 / BRAF V600E / Raf1 / 破骨細胞 / ARL4C / BRAFV600E
Outline of Research at the Start

「エナメル上皮腫におけるArl4cの機能解析とその臨床応用」を目指し、以下の2点を明らかにすることを計画している。
①エナメル上皮腫の腫瘍形成・破骨細胞誘導におけるArl4cの機能の解明
②モデル動物を用いたArl4cを標的とするエナメル上皮腫の抗腫瘍効果の解析
申請者らが同定した新規がん関連遺伝子Arl4cのエナメル上皮腫における機能解析を行い、Arl4cを分子標的とした新規治療法の開発を目指す点が本研究の概要である。

Outline of Final Research Achievements

Ameloblastoma is an odontogenic neoplasm characterized by slow intraosseous growth with progressive jaw resorption. Recent reports revealed that ameloblastoma harbors an oncogenic BRAF V600E mutation with MAPK pathway activation. However, the precise mechanism by which MAPK pathway induces ameloblastoma is unclear. In immunohistochemical analyses of tissue specimens obtained from ameloblastoma patients, ARL4C was frequently expressed with both BRAF V600E and RAF1. ARL4C-depleted tumour cells exhibited decreased proliferation and migration capabilities. Finally, when ameloblastoma cells were co-cultured with mouse bone marrow cells and primary osteoblasts, ameloblastoma cells induced osteoclast formation. ARL4C elevation in ameloblastoma further promoted its formation capabilities. These results suggest that the RAF1-MEK/ERK-ARL4C axis, which may function in cooperation with the BRAF V600E-MEK/ERK pathway, promotes ameloblastoma development.

Academic Significance and Societal Importance of the Research Achievements

エナメル上皮腫は口腔特有の良性腫瘍であるが、臨床的には良性腫瘍の範疇をこえるような病態を呈することがある。本研究において、エナメル上皮腫では、少なくとも2種類のシグナル伝達が活性化していることを見出した。本研究結果より、臨床の病態に関連するエナメル上皮種の新たな病因論が明らかになったと考えられた。BRAF V600E阻害剤はすでに皮膚癌に応用されており、エナメル上皮腫にも適応されつつある。より効果的な治療効果をもたらすためには、RAF1阻害剤の併用が望まれる。本研究成果はエナメル上皮腫の新たな診断方法や予後の判定法の確立および治療への応用に発展できると考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (29 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (6 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (14 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results) Remarks (3 results)

  • [Int'l Joint Research] University College London(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Turku(フィンランド)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University Complutense Madrid(スペイン)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University College London(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Turku(フィンランド)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University Complutense Madrid(スペイン)

    • Related Report
      2021 Research-status Report
  • [Journal Article] The Semaphorin 3A-AKT axis-mediated cell proliferation in salivary gland morphogenesis and adenoid cystic carcinoma pathogenesis.2022

    • Author(s)
      Fujii S, Fujimoto T, Hasegawa K, Nagano R, Ishibashi T, Kurppa KJ, Mikami Y, Kokura M, Tajiri Y, Kibe T, Wada H, Wada N, Kishida S, Higuchi Y, Kiyoshima T.
    • Journal Title

      Pathol Res Pract.

      Volume: 236 Pages: 153991-153991

    • DOI

      10.1016/j.prp.2022.153991

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Wnt signaling promotes tooth germ development through YAP1-TGF-β signaling.2022

    • Author(s)
      Nagano R, Fujii S, Hasegawa K, Maeda H, Kiyoshima T.
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: 630 Pages: 64-70

    • DOI

      10.1016/j.bbrc.2022.09.012

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clear cell squamous cell carcinoma of the tongue exhibits characteristics as an undifferentiated squamous cell carcinoma.2022

    • Author(s)
      Hasegawa K, Fujii S, Kurppa KJ, Maehara T, Oobu K, Nakamura S, Kiyoshima T.
    • Journal Title

      Pathol Res Pract.

      Volume: 235 Pages: 153909-153909

    • DOI

      10.1016/j.prp.2022.153909

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lipomatous mixed tumor of the skin with cystic formation affecting the upper lip: A case report.2022

    • Author(s)
      Nagano R, Fujii S, Wada H, Matsumura-Kawashima M, Mikami Y, Moriyama M, Chikui T, Yoshiura K, Nakamura S, Kiyoshima T.
    • Journal Title

      Exp Ther Med.

      Volume: 24 Issue: 5 Pages: 664-664

    • DOI

      10.3892/etm.2022.11600

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] RAF1-MEK/ERK pathway-dependent ARL4C expression promotes ameloblastoma cell proliferation and osteoclast formation.2021

    • Author(s)
      Fujii S, Ishibashi T, Kokura M, Fujimoto T, Matsumoto S, Shidara S, Kurppa KJ, Pape J, Caton J, Morgan PR, Heikinheimo K, Kikuchi A, Jimi E, Kiyoshima T.
    • Journal Title

      J Pathol.

      Volume: 256(1) Issue: 1 Pages: 119-133

    • DOI

      10.1002/path.5814

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] YAP signaling induces PIEZO1 to promote oral squamous cell carcinoma cell proliferation2020

    • Author(s)
      Hasegawa Kana、Fujii Shinsuke、Matsumoto Shinji、Tajiri Yudai、Kikuchi Akira、Kiyoshima Tamotsu
    • Journal Title

      The Journal of Pathology

      Volume: 253 Issue: 1 Pages: 80-93

    • DOI

      10.1002/path.5553

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 口腔腫瘍において 異常活性化したシグナル伝達とその機能解析2023

    • Author(s)
      藤井慎介
    • Organizer
      第41回日本口腔腫瘍学会総会・学術大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] エナメル上皮腫における低分子量Gタンパク質ARL4Cの発現は腫瘍細胞増殖と破骨細胞形成を促進する2022

    • Author(s)
      藤井 慎介、自見 英治郎、清島 保
    • Organizer
      第111回日本病理学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 低分子量Gタンパク質ARL4Cの発現はエナメル上皮腫における腫瘍細胞増殖と破骨細胞形成を促進する2022

    • Author(s)
      藤井 慎介、自見 英治郎、清島 保
    • Organizer
      第64回歯科基礎医学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] RAF1-MEK/ERK pathway-dependent ARL4C expression promotes ameloblastoma cell proliferation and osteoclast formation2022

    • Author(s)
      Shinsuke Fujii, Eijiro Jimi, Tamotsu Kiyoshima
    • Organizer
      Kyudai Oral Bioscience&OBT Research Center 6th Joint International Symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] RAF1-MEK/ERK pathway-dependent ARL4C expression promotes ameloblastoma cell proliferation and osteoclast formation2022

    • Author(s)
      Shinsuke Fujii, Takuma Ishibashi, Megumi Kokura, Tatsufumi Fujimoto, Shinji Matsumoto, Satsuki Shidara, Kari J Kurppa, Judith Pape, Javier Caton, Peter R Morgan, Kristiina Heikinheimo, Akira Kikuchi, Eijiro Jimi, Tamotsu Kiyoshima
    • Organizer
      TMD 2022 14th Tooth Morphogenesis and Differentitaton
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 口腔がんにおいて 異常活性化したシグナル伝達とその機能解析2021

    • Author(s)
      藤井 慎介
    • Organizer
      学術研究賞(A演説)
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 口腔扁平上皮癌における「腫瘍実質-間質連関」による細胞増殖制御機構の解明2021

    • Author(s)
      藤井 慎介、清島 保
    • Organizer
      第63回歯科基礎医学会学術大会, 2021.10.
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] YAP-PIEZO1シグナルは口腔扁平上皮癌の細胞増殖を制御する2021

    • Author(s)
      藤井 慎介、長谷川 佳那、清島 保
    • Organizer
      第110回日本病理学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 口腔扁平上皮癌における増殖および分化転換の新規分子基盤の解明2020

    • Author(s)
      藤井 慎介、清島 保
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 歯原性腫瘍におけるWntシグナルネットワークの破綻2020

    • Author(s)
      藤井 慎介、清島 保
    • Organizer
      第109回日本病理学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Sema3A-AKT Axis In Salivary Gland And Adenoid Cystic Carcinoma Developments2020

    • Author(s)
      Tatsufumi Fujimoto, Shinsuke Fujii, Tamotsu Kiyoshima
    • Organizer
      第68回JADR学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 軸索ガイダンス因子Sema3aによる唾液腺発生制御メカニズムの解明2020

    • Author(s)
      藤本 龍史、藤井 慎介、清島 保
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 新規癌関連遺伝子のエナメル上皮腫における高発現とその機能解析2020

    • Author(s)
      石橋 拓馬、藤井 慎介、清島 保
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] ヒト口腔扁平上皮癌に高発現した機械受容器TRPV4はCaMK II/AKTシグナル伝達を介して癌細胞の増殖を制御する2020

    • Author(s)
      田尻 祐大、藤井 慎介、清島 保
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
  • [Remarks] 九州大学大学院歯学研究院口腔顎顔面病態学口腔病理学分野 HP

    • URL

      https://www.dent.kyushu-u.ac.jp/about/field/field4/field4_01/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 九州大学研究成果プレスリリース

    • URL

      https://www.kyushu-u.ac.jp/ja/researches/view/671

    • Related Report
      2021 Research-status Report
  • [Remarks] 口腔顎顔面病態病理学分野(九州大学)

    • URL

      http://www.dent.kyushu-u.ac.jp/about/field/field4/field4_01/

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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