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Epigenome-wide association study of human intervertebral disc degeneration

Research Project

Project/Area Number 19K09597
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionMie University

Principal Investigator

Akeda Koji  三重大学, 医学部附属病院, 講師 (20422826)

Co-Investigator(Kenkyū-buntansha) 奥村 克純  三重大学, 生物資源学研究科, 招へい教授 (30177183)
島岡 要  三重大学, 医学系研究科, 教授 (40281133)
須藤 啓広  三重大学, 医学系研究科, 教授 (60196904)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords椎間板変性 / エピジェネティクス / DNAメチル化 / 細胞周期関連遺伝子 / 椎間板 / エピジェネティックス / RNAシークエンス / DNAのメチル化 / 腰痛
Outline of Research at the Start

椎間板変性は腰痛の発症と関連する。エピジェネティクスはDNAのメチル化修飾(DNAメチル化)を始めとした遺伝子発現を調節する機構であり、細胞分化や組織の安定化に寄与する。しかし、これまで椎間板変性とエピジェネティクスの関連性は明らかになっていない。本研究の目的はヒト椎間板組織のエピゲノムワイド関連解析からDNAメチル化特性を椎間板変性度別に解析し、椎間板変性の鍵となる候補遺伝子を同定することである。

Outline of Final Research Achievements

Genome-wide analysis of the DNA methylation profile has identified 220 differentially methylated loci associated with human intervertebral disc (IVD) degeneration. Among these, two cell-cycle associated genes, growth arrest and DNA damage 45 gamma (GADD45G) and cytoplasmic activation/proliferation-associated protein-1 (CAPRIN1), were focused on. The expression of cell-cycle-associated proteins (GADD45G and CAPRIN1) was enhanced in human NP cells at an advanced stage of degeneration, suggesting that it may be regulated during the progression of IVD degeneration to maintain the integrity of human NP tissues by controlling cell proliferation and apoptosis under epigenetic alteration.

Academic Significance and Societal Importance of the Research Achievements

椎間板変性は遺伝性を背景に環境因子が影響すると考えられているが、その関連性は不明である。エピジェネティクスはDNAのメチル化修飾(DNAメチル化)を始めとした遺伝子発現を調節する機構であり、細胞分化や組織の安定化に寄与する。DNAメチル化様式に変化を生じたCAPRIN1, GADD45Gはヒト椎間板において発現しており、椎間板変性の進行に関連することが示された。エピジェネティクスの変化を背景に細胞周期関連遺伝子の発現の変化が椎間板変性の原因の一つである可能性が考えられた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Expression of GADD45G and CAPRIN1 in Human Nucleus Pulposus: Implications for Intervertebral Disc Degeneration2023

    • Author(s)
      Kawaguchi Koki、Akeda Koji、Yamada Junichi、Hasegawa Takahiro、Takegami Norihiko、Fujiwara Tatsuhiko、Sudo Akihiro
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 6 Pages: 5768-5768

    • DOI

      10.3390/ijms24065768

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Genome-wide Analysis of DNA Methylaton Identifies Differentially Methylated Loci Associated With Human Intervertebral Disc Degeneration.2019

    • Author(s)
      Ikuno A, Akeda K, Takebayashi S I, Shimaoka M, Okumura K, and Sudo A.
    • Journal Title

      PLoS One

      Volume: 14 Issue: 9 Pages: e0222188-e0222188

    • DOI

      10.1371/journal.pone.0222188

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression of the RANK/RANKL/OPG system in the human intervertebral disc: implication for the pathogenesis of intervertebral disc degeneration2019

    • Author(s)
      Sano Tomohiko、Akeda Koji、Yamada Junichi、Takegami Norihiko、Sudo Takao、Sudo Akihiro
    • Journal Title

      BMC Musculoskeletal Disorders

      Volume: 20 Issue: 1 Pages: 1-13

    • DOI

      10.1186/s12891-019-2609-x

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Expression Of Cytoplasmic Activation/proliferation-associated Protein-1 (carpin1) In The Human Nucleus Pulposus2023

    • Author(s)
      Junichi Yamada; Koji Akeda; Koki Kawaguchi; Takahiro Hasegawa; Norihiko Takegami; Tatsuhiko Fujiwara; Akihiro Sudo
    • Organizer
      Orthopaedic Reseach Society 2023 Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Expression Of Growth Arrest And Dna Damage 45 Gamma (gadd45g) In Human Nucleus Pulposus2023

    • Author(s)
      Koki Kawaguchi; Koji Akeda; Takahiro Hasegawa; Junichi Yamada; Norihiko Takegami; Tatsuhiko Fujiwara; Akihiro Sudo
    • Organizer
      Orthopaedic Reseach Society 2023 Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒト椎間板髄核におけるCaspase recruitment domain-containing protein 14 (CARD14) の発現2023

    • Author(s)
      川口航希、明田浩司、長谷川貴栄、山田淳一、竹上徳彦、藤原達彦、須藤啓広
    • Organizer
      第52回日本脊椎脊髄病学会学術集
    • Related Report
      2022 Annual Research Report
  • [Presentation] ヒト椎間板におけるCytoplasmic activation/proliferation associated protein-1 (caprin-1)の発現2022

    • Author(s)
      山田淳一、明田浩司、川口航希、長谷川貴栄、竹上徳彦、藤原達彦、須藤啓広
    • Organizer
      第37回日本整形外科学会基礎学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ヒト椎間板におけるGrowth arrest and DNA damage inducible 45 gamma (GADD45G)の発現2022

    • Author(s)
      川口航希、明田浩司、長谷川貴栄、山田淳一、竹上徳彦、藤原達彦、須藤啓広
    • Organizer
      第37回日本整形外科学会基礎学術集会
    • Related Report
      2022 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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