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Study of the mechanism underlying secretory leukocyte protease inhibitor (SLPI)-induced malignancy of cancer

Research Project

Project/Area Number 18K07226
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionNiigata University

Principal Investigator

Mikami Yoshikazu  新潟大学, 医歯学系, 准教授 (80434075)

Co-Investigator(Kenkyū-buntansha) 上原 範久  九州大学, 歯学研究院, 助教 (30368211)
早津 学  新潟大学, 医歯学系, 助教 (40468898)
水谷 祐輔  北海道大学, 総合IR室, 特任准教授 (40646238)
津田 啓方  日本大学, 歯学部, 准教授 (60325470)
福島 敦史  国立研究開発法人理化学研究所, 環境資源科学研究センター, 上級研究員 (80415281)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsSLPI / 細胞移動能 / 細胞接着 / Galectin4 / 口腔上皮がん / がん悪性化 / がん / 悪性化
Outline of Final Research Achievements

To elucidate the underlying mechanism of secretory leukocyte protease inhibitor (SLPI)-induced cell migration, we compared SLPI-deleted human gingival carcinoma Ca9-22 (ΔSLPI) cells and original (wild-type: wt) Ca9-22 cells using several microscopic imaging methods and gene expression analysis. Our results indicated reduced migration of ΔSLPI cells compared to wtCa9-22 cells. The lamellipodia/dorsal ruffles were smaller and moved slower in ΔSLPI cells compared to wtCa9-22 cells. Furthermore, well-developed intermediate filament bundles were observed at the desmosome junction of ΔSLPI cells. In addition, Galectin4 was strongly expressed in ΔSLPI cells, and its forced expression suppressed migration of wtCa9-22 cells. Taken together, SLPI facilitates cell migration by regulating lamellipodia/ruffles and desmosomes, in which Galectin4 plays an important role.

Academic Significance and Societal Importance of the Research Achievements

がんの転移は,生命予後やクオリティーオブライフの著しい低下を引き起こす。したがって,その予防・治療法の開発は急務である。そのためには,関与する因子の同定と作用機序の解明が必要不可欠である。本研究では,SLPIを発現するがん細胞によって構成されるがんが,高頻度に転移するという報告に着目し,SLPIのがん細胞悪性化機構を検討した。その結果,SLPIがいくつかの細胞接着因子の発現を抑制することによって,がん細胞の移動能と浸潤能を亢進することを明らかにした。これらの結果は,がん転移の予防・治療法の開発における新規標的因子の同定に貢献することが期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2018

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] SLPI facilitates cell migration by regulating lamellipodia/ruffles and desmosomes, in which Galectin4 plays an important role2020

    • Author(s)
      Mizutani Yusuke、Omagari Daisuke、Hayatsu Manabu、Nameta Masaaki、Komiyama Kazuo、Mikami Yoshikazu、Ushiki Tatsuo
    • Journal Title

      Cell Adhesion & Migration

      Volume: 14 Issue: 1 Pages: 195-203

    • DOI

      10.1080/19336918.2020.1829264

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gap junction with MLO-A5 osteoblast-like cell line induces ALP and BSP transcription of 3T3-L1 pre-adipocyte like cell line via Hspb1 while retaining adipogenic differentiation ability.2020

    • Author(s)
      Omagari D, Hayatsu M, Yamamoto K, Kobayashi M, Tsukano N, Nameta M, Mikami Y
    • Journal Title

      Bone

      Volume: 141 Pages: 115596-115596

    • DOI

      10.1016/j.bone.2020.115596

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dual effect of polyphosphate on mineralization of rat osteoblast ROS17/2.8 cells in a dose-dependent manner2018

    • Author(s)
      Mikami Y, Omagari D, Mizutani Y, Hayatsu M, Ushiki T, Tsuda H
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 138 Issue: 3 Pages: 209-213

    • DOI

      10.1016/j.jphs.2018.10.002

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Scanning ion conductance microscopy for visualizing the surface topography of rat tissue sections.2021

    • Author(s)
      Mizutani Y, Hayatsu M, Mikami Y, Ushiki T.
    • Organizer
      第126回日本解剖学会総会・全国学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] GAP JUNCTION WITH MLO-A5 OSTEOBLAST-LIKE CELLS INDUCE ALP AND BSP TRANSCRIPTION OF 3T3-L1 PRE-ADIPOCYTE-LIKE CELLS VIA HSPB1 WHILE RETAINING ADIPOGENIC DIFFERENTIATION ABILITY2021

    • Author(s)
      Mikami Y, Tsukano N, Hayatsu M.
    • Organizer
      International Society for Stem Cell Research(ISSCR) Annual Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 口腔上皮がん細胞Ca9-22細胞の悪性化機構の検討2021

    • Author(s)
      三上剛和
    • Organizer
      第63回歯科基礎医学会学術大会アップデートシンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Secretory leukocyte protease inhibitor による細胞移動能の制御機構に関する研究2020

    • Author(s)
      三上剛和, 福島敦史, 水谷祐輔,早津学,小宮山一雄,牛木辰男
    • Organizer
      第125回日本解剖学会総会・全国学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] イオン伝導顕微鏡による細胞・組織イメージング2018

    • Author(s)
      水谷 祐輔、早津 学、三上 剛和、牛木 辰男
    • Organizer
      第124回日本解剖学会総会・全国学術集会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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