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

Regulation of rheumatoid synovial fibroblasts focusing on layilin-dependent epithelial-mesenchymal transition-like changes

Research Project

Project/Area Number 16K09910
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Collagenous pathology/Allergology
Research InstitutionSt. Marianna University School of Medicine

Principal Investigator

KATO TOMOHIRO  聖マリアンナ医科大学, 医学部, 教授 (80233807)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords滑膜線維芽細胞 / 関節リウマチ / 上皮間葉移行様変化 / ライリン / 滑膜細胞 / Layilin / 上皮間葉移行 / 上皮間葉
Outline of Final Research Achievements

Firstly, in proteomic analysis, we successfully identified 24 protein spots affected by layilin-silencing in human synovial fibroblasts. As a result, 15 (62.5%) out of the 24 protein spots were assigned to epithelial-mesenchymal transition (EMT)-related proteins. These data suggest that layilin is deeply involved in EMT and EMT-like changes. Secondly, we found that layilin up-regulated the expression of snail family transcriptional repressor 1 (SNAI1) via down-regulation of metastasis-associated protein 3 (MTA3) and that enhanced the cellular invasive ability. Thirdly, using the CRISPR-Cas9 method, we successfully established the first layilin-deficient (homo, LAYN-/-) mice to clarify the physiological and pathogenic roles of layilin. This is expected to be a useful tool for the clarification.

Academic Significance and Societal Importance of the Research Achievements

滑膜細胞のEMT様変化自体を研究している論文は数が少なく、これからの分野である。また、ライリンの機能に関しても明らかにされていない点が多い。その中で、RAで高値となるTNF-αがライリンを介して EMTを起こすという独創的な仮説を提唱し、本研究でその実験的根拠を一部見出した点に学術的意義がある。本研究の長期的目標は、滑膜細胞のEMT様変化抑制、それによる異常増殖抑制・骨浸潤抑制によりRAの治療を行うということである。著効はするが高価でかつ易感染性などの副作用のある現在の生物学的製剤とは全く機序の異なる治療が可能となるところが実用上の極めて大きな意義である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017 2016

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results)

  • [Journal Article] Effects of salazosulfapyridine on the profile of cell surface proteins, revealed by biotinylation of cell surface proteins and 2-dimentional electrophoresis2019

    • Author(s)
      Omoteyama Kazuki、Sato Toshiyuki、Arito Mitsumi、Sato Masaaki、Suematsu Naoya、Kurokawa Manae S.、Kato Tomohiro
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics

      Volume: 1867 Issue: 1 Pages: 47-56

    • DOI

      10.1016/j.bbapap.2018.05.007

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A proteomic analysis of serum-derived exosomes in rheumatoid arthritis2018

    • Author(s)
      Tsuno Hirotaka、Arito Mitsumi、Suematsu Naoya、Sato Toshiyuki、Hashimoto Atsushi、Matsui Toshihiro、Omoteyama Kazuki、Sato Masaaki、Okamoto Kazuki、Tohma Shigeto、Kurokawa Manae S.、Kato Tomohiro
    • Journal Title

      BMC Rheumatology

      Volume: 2 Issue: 1 Pages: 35-35

    • DOI

      10.1186/s41927-018-0041-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Roles of layilin in human synovial fibroblasts revealed by proteomic analysis2017

    • Author(s)
      Shimazaki K, Arito M, Sato T, Omoteyama K, Sato M, Kurokawa MS, Suematsu N, Niki H, Kato T.
    • Journal Title

      Integrative Molecular Medicine

      Volume: 4 Issue: 6

    • DOI

      10.15761/imm.1000316

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 悪性神経膠腫細胞におけるライリンの役割2018

    • Author(s)
      有戸光美、梶友紘、土屋貴大、佐藤政秋、佐藤利行、表山和樹、黒川真奈絵、末松直也、田中雄一郎、加藤智啓
    • Organizer
      第91回日本生化学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] プロテオミクス法を用いた、ヒト滑膜繊維芽細胞株におけるライリンの機能解析2018

    • Author(s)
      嶋﨑孝輔、有戸光美、佐藤利行、表山和樹、佐藤政秋、黒川真奈絵、末松直也、仁木久照、加藤智啓
    • Organizer
      日本質量分析学会・日本プロテオーム学会 2018年合同大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 滑膜細胞におけるLayilinの機能探索2017

    • Author(s)
      有戸光美、嶋﨑孝輔, 黒川真奈絵, 佐藤利行, 表山和樹, 加藤智啓
    • Organizer
      第61回日本リウマチ学会総会・学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 腎尿細管上皮細胞のTNF-α;誘導性上皮間葉移行に対するlayilinの役割2016

    • Author(s)
      有戸光美、安達崇之、末松直也、池森敦子、表山和樹、佐藤利行、黒川真奈絵、岡本一起、木村健二郎、柴垣有吾、加藤智啓
    • Organizer
      第89 回日本生化学会大会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2016-09-25
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi