• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Prognosis of oral squamous cell carcinoma and cytoplasmic expression of Maspin and its role

Research Project

Project/Area Number 19K19195
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionTottori University

Principal Investigator

KAWASAKI Makoto  鳥取大学, 医学部附属病院, 医員 (80816372)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsMaspin / squamous cell carcinoma / immunostaning / Subcellular localization / oral cancer / 口腔扁平上皮癌 / maspin / subcellular / prognosis / proliferation ability / 免疫染色 / oral carcinoma / 口腔癌 / 扁平上皮癌
Outline of Research at the Start

maspin(mammary serine Protease inhibitor)は正常乳腺で発現し、乳癌培養細胞では発現が消失している腫瘍抑制遺伝子として発見された。培養細胞系や動物実験などでは核局在型maspinは癌抑制遺伝子とされているが、ヒト乳癌などのさまざまな組織で細胞質局在型maspinの発現は独立した予後不良因子であることが報告されている。本研究では、口腔癌の予後とmaspinの発現の関連性を明らかにし、質量分析によるmaspin核内輸送タンパクの探索を行うことにより、maspinが細胞質に局在化する機構の解明や細胞質局在型maspinが口腔癌の発生・進展に及ぼす影響を探索する。

Outline of Final Research Achievements

We investigated the prognosis of patients who underwent surgery for oral squamous cell carcinoma at the Department of Dentistry and Oral Surgery, Tottori University Hospital, and investigated the localization of Maspin by immunostaining. When Maspin was localized in the cytoplasm, the prognosis was significantly worse compared with other patients. We also investigated the localization of Maspin using cell lines, and found that in the HSC4 cell line, in which Maspin is expressed in the cytoplasm and nucleus, suppression of Maspin expression increased the invasive ability. These results suggest that Maspin, which is expressed in the cytoplasm and nucleus, functions as a tumor suppressor.
These results were presented at academic conferences and as papers.

Academic Significance and Societal Importance of the Research Achievements

口腔扁平上皮癌においてMaspinと予後についての調査はいくらかあるが、その局在まで検討している文献は確認できなかった。他の癌腫では報告がある一方、口腔扁平上皮癌において細胞質に限局したMaspinが予後不良であることをわれわれが初めて報告した。
このことにより今後口腔扁平上皮癌の患者にMaspinの局在を調べ、Maspinが細胞質に限局した場合Maspinを抑制することのできる分子標的薬で患者の予後を改善できる可能性がある。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (3 results)

All 2021 2020 2019

All Journal Article (1 results) Presentation (2 results)

  • [Journal Article] Cytoplasmic-only Expression of Maspin Predicts Poor Prognosis in Patients With Oral Squamous Cell Carcinoma2021

    • Author(s)
      KAWASAKI MAKOTO、SAKABE TOMOHIKO、KODANI ISAMU、UMEKITA YOSHIHISA
    • Journal Title

      Anticancer Research

      Volume: 41 Issue: 9 Pages: 4563-4570

    • DOI

      10.21873/anticanres.15269

    • Related Report
      2021 Research-status Report
  • [Presentation] 口腔扁平上皮癌患者におけるmaspinの細胞内局在の臨床的意義2020

    • Author(s)
      川﨑 誠
    • Organizer
      第109回日本病理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 口腔扁平上皮癌におけるmaspinの細胞内局在の臨床的意義2019

    • Author(s)
      川﨑 誠
    • Organizer
      日本口腔外科学会
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi