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Analysis of the role of UBD-dependent intracellular protein regulation in the pathogenesis of inflammatory bowel disease.

Research Project

Project/Area Number 19K23990
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0903:Organ-based internal medicine and related fields
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Kawamoto Ami  東京医科歯科大学, 医学部附属病院, 特任助教 (70849124)

Project Period (FY) 2019-08-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords炎症性腸疾患 / ユビキチン / UBD / Notch / 腸上皮細胞 / ヒト腸上皮 / TNF-α
Outline of Research at the Start

本研究では腸上皮における「UBD依存的ユビキチン様蛋白・プロテアソーム系(UBD依存的UBL-PSM系)」に着目し、同機構が制御する細胞内標的タンパクを探索・同定すると共に、炎症性腸疾患の発症等における機能的意義の解明を目指す。この為、ヒト腸上皮内「UBD依存的UBL-PSM系」標的分子の網羅的探索・同定 及びヒト腸上皮内「UBD依存的UBL-PSM系」の標的分子を介した機能の解析を実施する。

Outline of Final Research Achievements

Our present study regarding the newly identified intracellular proteolysis system, UBD-dependent UBL-PSM system, identified 62 candidate target proteins by iTRAQ analysis. Also, in addition to p62, two additional candidate target proteins of the UBL-PSM system were revealed by immunoprecipitation analysis. These findings suggest that UBD, a protein induced under an inflammatory environment in human intestinal epithelial cells, may exhibit its function through multiple target proteins.

Academic Significance and Societal Importance of the Research Achievements

今回の結果より、ヒト腸上皮細胞に於いて炎症環境で発現誘導される分子UBDは、複数の標的分子を有する可能性が示された。同標的分子群の蛋白分解制御を介し腸上皮機能を調節するという新たな炎症性腸疾患の病態の可能性も提示した。標的分子のさらなる探索等を通じ、炎症性腸疾患における「UBD依存的UBL-PSM系」の理解が一層進展し、新規治療法の開発につながることが期待できる。

Report

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

    (3 results)

All 2021 2020

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

  • [Journal Article] Notch and TNF-α signaling promote cytoplasmic accumulation of OLFM4 in intestinal epithelium cells and exhibit a cell protective role in the inflamed mucosa of IBD patients2021

    • Author(s)
      Kuno Reiko、Ito Go、Kawamoto Ami、Hiraguri Yui、Sugihara Hady Yuki、Takeoka Sayaka、Nagata Sayaka、Takahashi Junichi、Tsuchiya Mao、Anzai Sho、Mizutani Tomohiro、Shimizu Hiromichi、Yui Shiro、Oshima Shigeru、Tsuchiya Kiichiro、Watanabe Mamoru、Okamoto Ryuichi
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 25 Pages: 100906-100906

    • DOI

      10.1016/j.bbrep.2020.100906

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Functional analysis of isoflavones using patient-derived human colonic organoids2021

    • Author(s)
      Tsuchiya Mao、Ito Go、Hama Minami、Nagata Sayaka、Kawamoto Ami、Suzuki Kohei、Shimizu Hiromichi、Anzai Sho、Takahashi Junichi、Kuno Reiko、Takeoka Sayaka、Hiraguri Yui、Sugihara Hady Yuki、Mizutani Tomohiro、Yui Shiro、Oshima Shigeru、Tsuchiya Kiichiro、Watanabe Mamoru、Okamoto Ryuichi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 542 Pages: 40-47

    • DOI

      10.1016/j.bbrc.2021.01.021

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Organoid-based regenerative medicine for inflammatory bowel diasease.2020

    • Author(s)
      Okamoto R, Shimizu H, Suzuki K, Kawamoto A, Takahashi J, Kawai M, Nagata S, Hiraguri Y, Takeoka S, Sugihara HY, Yui S, Watanabe M
    • Journal Title

      Regen Ther.

      Volume: 13 Pages: 1-6

    • DOI

      10.1016/j.reth.2019.11.004

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2019-09-03   Modified: 2022-01-27  

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