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PADI2 suppresses proliferation of colon cancer cells through protein citrullination

Research Project

Project/Area Number 16K07107
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Tumor biology
Research InstitutionTohoku University

Principal Investigator

Funayama Ryo  東北大学, 医学系研究科, 助教 (20452295)

Research Collaborator Nakayama keiko  
TANIGUCHI hajime  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsシトルリン化 / PADI2 / 大腸がん / 翻訳後修飾
Outline of Final Research Achievements

PADI2 was expressed in normal colon epithelial cells and downregulated during colon carcinogenesis. Overexpression of PADI2 suppressed proliferation of colon cancer cells in vitro concomitant with increased protein citrullination. The growth defect was not caused by increased apoptosis but by suppression of cell cycle progression. Some citrullinated proteins were found in normal colon tissues. Our data thus suggest that PADI2 suppresses proliferation of colon epithelial cells through protein citrullination, and that downregulation of PADI2 expression might contribute to colon carcinogenesis.

Academic Significance and Societal Importance of the Research Achievements

タンパク質のシトルリン修飾の異常は関節リウマチやアルツハイマー病の進行に関与しているが、シトルリン修飾の異常がどのように病態を引き起こすのかは不明である。本研究では、大腸がんの進行の過程でシトルリン化酵素PADI2の発現量が低下することを見出した。また、PADI2によるタンパク質のシトルリン化は大腸上皮細胞の増殖を抑制することを明らかにした。タンパク質のシトルリン修飾状態の変化が細胞の増殖能を通して大腸組織のがん化に影響することを明らかにした点に意義がある。

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 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] Protein-arginine deiminase 2 suppresses proliferation of colon cancer cells through protein citrullination.2017

    • Author(s)
      Funayama R, Taniguchi H, Mizuma M, Fujishima F, Kobayashi M, Ohnuma S, Unno M, Nakayama K.
    • Journal Title

      Cancer Sci.

      Volume: 108 Issue: 4 Pages: 713-718

    • DOI

      10.1111/cas.13179

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Wnt-beta-catenin signaling regulates ABCC3 (MRP3) transporter expression in colorectal cancer.2016

    • Author(s)
      Kobayashi, M., Funayama, R., Ohnuma, S., Unno, M., Nakayama, K.
    • Journal Title

      Cancer Sci.

      Volume: 107 Issue: 12 Pages: 1776-1784

    • DOI

      10.1111/cas.13097

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] PADI2 suppresses proliferation of colon cancer cells through protein citrullination2019

    • Author(s)
      Keiko Nakayama, Ryo Funayama, Hajime Taniguchi
    • Organizer
      11th AACR-JCA Joint Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 大腸がんにおけるFibulin 2スプライスバリアントの役割2018

    • Author(s)
      舟山亮, 遠山慎吾, 高唯真, 中山啓子
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 次世代シーケンサーを用いた大腸がん組織のトランスクリプトーム解析.2018

    • Author(s)
      舟山亮, 中山啓子.
    • Organizer
      第1回若手研究者交流会.
    • Related Report
      2017 Research-status Report
  • [Presentation] 大腸がんにおけるタンパク質シトルリン化酵素PADI2の役割.2016

    • Author(s)
      舟山亮, 谷口肇, 水間正道, 藤島史喜, 小林実, 大沼忍, 海野倫明, 中山啓子.
    • Organizer
      第39回日本分子生物学会年会.
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-12-01
    • Related Report
      2016 Research-status Report
  • [Remarks] 東北大学大学院医学系研究科細胞増殖制御分野ホームページ

    • URL

      http://www.devgen.med.tohoku.ac.jp/index.html

    • Related Report
      2018 Annual Research Report 2017 Research-status Report 2016 Research-status Report

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

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