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Epigenetic regulation of inflammatory response by environmental stress.

Research Project

Project/Area Number 16K19631
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pediatrics
Research InstitutionTokyo Metropolitan Children's Medical Center (Department of Clinical Research)

Principal Investigator

HACHIYA Rumi  東京都立小児総合医療センター(臨床研究部), なし, 医員 (50365318)

Research Collaborator OGAWA Yoshihiro  
SUGANAMI Takayoshi  
SHIRAKAWA Ibuki  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsマクロファージ / エピジェネティクス / サイトカイン / 慢性炎症 / 肥満 / 糖尿病 / 環境因子 / 自然免疫
Outline of Final Research Achievements

We have demonstrated that SET domain, bifurcated 1 (Setdb1) in macrophages potently suppresses Toll-like receptor 4 (TLR4)-mediated expression of proinflammatory cytokines which is stimulated by lipopolysaccharide. In this study our aim was to clarify the role of Setdb1 in inflammation by environmental stress which is related to obese adipose tissue inflammation. We made Setdb1 knock-down macrophage cell line and demonstrated that Setdb1 suppresses inflammation by saturated fatty acid. Moreover, we identified the factor which is regulated by Setdb1 by in silico analysis.

Academic Significance and Societal Importance of the Research Achievements

学術的には、Setdb1という我々自身が独自に同定した分子を解析の手掛かりとすることにより、いまだに知見の少ないマクロファージの炎症におけるエピジェネティック制御機構の一端にアプローチできた。また、社会的には、メタボリックシンドロームの治療法として、肥満脂肪組織の炎症を主たる標的とするものは未だ開発されていないが、炎症性サイトカイン発現を抑制するエピジェネティック分子であるSetdb1は、治療標的としての可能性が期待でき、本研究の成果はその基礎的知見となり得る。

Report

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

    (3 results)

All 2018 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] The H3K9 methyltransferase Setdb1 regulates TLR4-mediated inflammatory responses in macrophages.2016

    • Author(s)
      R. Hachiya, T. Shiihashi, I. Shirakawa, Y. Iwasaki, Y. Matsumura, Y. Oishi, Y. Nakayama, Y. Miyamoto, I. Manabe, K. Ochi, M. Tanaka, N. Goda, J. Sakai, T. Suganami, Y. Ogawa.
    • Journal Title

      Sci. Rep.

      Volume: 6 Issue: 1 Pages: 28845-28845

    • DOI

      10.1038/srep28845

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 飽和脂肪酸による炎症におけるマクロファージH3K9メチル化酵素Setdb1の意義2018

    • Author(s)
      蜂屋瑠見、白川伊吹、菅波孝祥、長谷川行洋、小川佳宏
    • Organizer
      第52回日本小児内分泌学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] マクロファージの新規炎症抑制因子ヒストンメチル化酵素Setdb12016

    • Author(s)
      蜂屋瑠見、白川伊吹、菅波孝祥、小川佳宏
    • Organizer
      第37回日本肥満学会
    • Place of Presentation
      東京ファッションタウン(東京都江東区)
    • Year and Date
      2016-10-08
    • Related Report
      2016 Research-status Report

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

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