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Database construction of epigenetics-dependent gene induction by nitric oxide

Research Project

Project/Area Number 22K19380
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 47:Pharmaceutical sciences and related fields
Research InstitutionOkayama University

Principal Investigator

Uehara Takashi  岡山大学, 医歯薬学域, 教授 (00261321)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords一酸化窒素 / 酸化ストレス / エピゲノム / DNAメチル化 / トランスクリプトーム / 遺伝子発現 / 誘導遺伝子 / メチル化 / データベース
Outline of Research at the Start

NOによるエピジェネティクスを介した遺伝子発現をデータベース化することは初の試みである.さらに,細胞種間で共通に誘導される,あるいは,特異的に誘導されるものを同定することで,今後,病態サンプルを解析した際に,対象遺伝子のプロファイリングに貢献できると推定される.最終的には,NOによる遺伝子発現を比較・個別化を図ることで、エピゲノム変化が介在する疾患発症のメカニズム解明の一助を目指す.

Outline of Final Research Achievements

The aim of this study was to identify a group of genes epigenetically regulated by NO through changes in DNMT activity. We exposed various cultured cells to NO donor and identified a group of genes with altered expression levels.
The results revealed that: 1) NO alters the expression patterns of genes that differ among cell lines, 2) genes whose expression changes due to NO are not enriched in common pathways among cell lines, and 3) many genes are involved in cancer development and malignant transformation. These results suggested that NO may promote cancer development and malignant transformation by inducing DNA demethylation and broadly altering the expression of genes that differ from cell to cell.

Academic Significance and Societal Importance of the Research Achievements

NOによって発現が変動する遺伝子の機能的なプロファイリングを行った.同定した発現変動遺伝子をそれぞれの由来組織の機能・がんに関与するかを文献やデータベースによって調査し,発現変動遺伝子と細胞株の由来組織との関連を推定した.その結果,各細胞株の由来組織の機能に関連した発現変動遺伝子はあまり得られず,がんの発症や悪性化に関わることが知られている遺伝子が多く発現上昇している傾向が見られた.以上の結果より,NOはその組織の機能に関与する変化を引き起こす可能性が低く,特定の遺伝子発現の変化を介したがんの発症や悪性化を促す可能性が示唆された.

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (4 results)

All 2024 2023 Other

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

  • [Int'l Joint Research] The Scripps Research Institute(米国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Transcriptome analysis in various cell lines exposed to nitric oxide2024

    • Author(s)
      Tohta Mizushima, Sho Kubota, Yuta Iijima, Nobumasa Takasugi, Takashi Uehara
    • Journal Title

      Journal of Toxicological Sciences

      Volume: 49

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pivotal role for S-nitrosylation of DNA methyltransferase 3B in epigenetic regulation of tumorigenesis2023

    • Author(s)
      Okuda, K. et al.,
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 621-621

    • DOI

      10.1038/s41467-023-36232-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Remarks]

    • URL

      http://www.okayama-u.ac.jp/user/yakko/

    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

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