• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Depletion of ribosomal proteins and mRNA-specific translation control: studying the molecular pathogenesis of congenital anemia

Research Project

Project/Area Number 19K08869
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionUniversity of Miyazaki

Principal Investigator

Uechi Tamayo  宮崎大学, 医学部, 准教授 (10381104)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsリボソームタンパク質 / 先天性貧血 / ゼブラフィッシュ / 翻訳 / 貧血 / ゲノム編集 / リボソーム / リボソーム病
Outline of Research at the Start

細胞内のタンパク質合成の場であるリボソームは全身に存在している。しかし、リボソームの異常は様々な疾患を引き起こす。これはリボソームの機能が組織によって異なることを示唆する。リボソームタンパク質(RP)の異常による先天性貧血では、赤血球造血に関わる因子の産生が特異的に低下する可能性が示された。本研究ではその詳細な分子機構の解明を目指す。まず、ゼブラフィッシュにおいて複数のRP遺伝子の変異モデルを作製する。それらを用いて特定のタンパク質の発現や糖鎖修飾が変動することを明らかにする。さらに、ヒト細胞を用いて同様の現象が見られることを確認し、貧血発症のメカニズムを明らかにする。

Outline of Final Research Achievements

The ribosome is a cellular component responsible for synthesizing proteins and found within all cells. However, abnormalities in the ribosome can lead to specific tissue abnormalities. We speculated that this is because of the presence of different translation regulatory mechanisms in each tissue. To investigate the molecular mechanism of congenital anemia, a representative disease, we developed zebrafish anemia model by suppressing the expression of a specific ribosomal protein gene and attempted to elucidate the mechanism that causes anemia. As a result, we found that not only genes involved in hematopoiesis but also a gene involved in the biosynthesis of glycans showed decreased translation efficiency. Additionally, we confirmed that overexpression of the gene leads to the recovery of red blood cell count. We concluded that the gene-specific translation regulatory mechanism involving ribosomal proteins is necessary for normal erythropoiesis.

Academic Significance and Societal Importance of the Research Achievements

ヒトのリボソームは79種類のタンパク質と4種類のRNAで構成され、RNAは約200箇所で化学修飾を受ける複雑な構造体である。タンパク質や修飾の翻訳における役割は未解明であり、リボソームの組み立てを担う因子も含めて、いずれかの異常は様々な先天性疾患との関連が示唆され、将来的にがんを発症しやすいこともわかってきた。これらリボソーム病の発症メカニズムの解明は、治療法の開発や創薬に必須である。先天性貧血モデルを用いて新たな知見が得られたことは、リボソーム病の解明に向けた重要な基盤情報になると考える。

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

    (11 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results)

  • [Journal Article] Cytosolic dsDNA of mitochondrial origin induces cytotoxicity and neurodegeneration in cellular and zebrafish models of Parkinson’s disease.2021

    • Author(s)
      Matsui, H.*, Ito, J., Matsui, N., Uechi, T., Onodera, O., Kakita, A.
    • Journal Title

      Nat. Commun.

      Volume: - Issue: 1 Pages: 3101-3101

    • DOI

      10.1038/s41467-021-23452-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Role of Alternative mRNA Splicing in Heart Development2020

    • Author(s)
      Douglas C. Bittel, Email authorNataliya Kibiryeva, Naoya Kenmochi, Prakash Patil, Tamayo Uechi, Brenda Rongish, Mike Filla, Jennifer Marshall, Michael Artman, Rajasingh Johnson, James E. O’BrienJr
    • Journal Title

      Molecular Mechanism of Congenital Heart Disease and Pulmonary Hypertension

      Volume: - Pages: 339-351

    • DOI

      10.1007/978-981-15-1185-1_53

    • ISBN
      9789811511844, 9789811511851
    • Related Report
      2020 Research-status Report
  • [Journal Article] Zebrafish Models of Diamond-Blackfan Anemia: A Tool for Understanding the Disease Pathogenesis and Drug Discovery2019

    • Author(s)
      Tamayo Uechi, Naoya Kenmochi
    • Journal Title

      pharmaceuticals

      Volume: 12 Issue: 4 Pages: 151-151

    • DOI

      10.3390/ph12040151

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Abnormal development of zebrafish after knockout and knockdown of ribosomal protein L10a2019

    • Author(s)
      Kunwadee Palasin, Tamayo Uechi, Maki Yoshihama, Naparee Srisowanna, Narantsog Choijookhuu, Yoshitaka Hishikawa, Naoya Kenmochi & Wilaiwan Chotigeat
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 18130-18130

    • DOI

      10.1038/s41598-019-54544-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] リボソームタンパク質とmRNA選択的な翻訳調節:ゼブラフィッシュを用いた解析2022

    • Author(s)
      上地珠代,中島由香里,長友麻里子,吉浜麻生,鈴木穣,剣持直哉
    • Organizer
      第45回日本分子生物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ゼブラフィッシュを用いたリボソーム病の発症機構の解明2022

    • Author(s)
      上地珠代,長友麻里子,剣持直哉
    • Organizer
      第45回日本分子生物学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 先天性貧血とmRNA選択的な翻訳効率の変動:ゼブラフィッシュを用いた解析2021

    • Author(s)
      上地珠代,吉浜麻生,中島由香里,長友麻里子,鈴木穣,剣持直哉
    • Organizer
      第44回分子生物学学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 先天性貧血とリボソームの異常―ゼブラフィッシュを用いて未知の翻訳機構の解明をめざす2021

    • Author(s)
      上地珠代
    • Organizer
      第27回八幡平造血セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Translational efficiency of mRNAs required for hematopoiesis were decreased in a zebrafish model of Diamond-Blackfan anemia2020

    • Author(s)
      Tamayo Uechi, Maki Yoshihama, Yukari Nakajima, Mariko Nagatomo, Yutaka Suzuki, Naoya Kenmochi
    • Organizer
      第43会日本分子生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] リボソームRNAの修飾欠損によるtRNA結合の変化2019

    • Author(s)
      上地珠代, Mary McMahon, Davide Ruggero
    • Organizer
      第42会日本分子生物学会年会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Molecular Pathogenesis of Diamond-Blackfan Anemia and Drug Screening for the Disease Using Zebrafish as a Model Animal2019

    • Author(s)
      Tamayo Uechi, Maki Yoshihama, Yukari Nakajima, Mariko Nagatomo, Yutaka Suzuki, Etsuro Ito, Naoya Kenmochi
    • Organizer
      RNA 2019 (The 24th Annual Meeting of the RNA Society)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi