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Elucidation of the molecular mechanisms that regulate protein transport in cilia.

Research Project

Project/Area Number 20K07326
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48040:Medical biochemistry-related
Research InstitutionOsaka University

Principal Investigator

Chaya Taro  大阪大学, 蛋白質研究所, 准教授 (50747087)

Project Period (FY) 2020-04-01 – 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 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords繊毛 / リン酸化 / タンパク質輸送 / キナーゼ / 繊毛病 / 網膜 / ゲノム編集 / マウス
Outline of Research at the Start

繊毛は細胞の表面に形成される微小管を軸とした細胞小器官であり、生物の発生過程や恒常性維持において重要な役割を担う。ヒトにおいて繊毛の機能不全は網膜色素変性症などの繊毛病と呼ばれる一群の疾患を引き起こすことが知られているが、その発症メカニズムは不明な点が多く、根本的な治療法も存在しない。繊毛の形成や機能発現において、繊毛内における蛋白質の輸送(IFT)は中心的な役割を担っている。しかし、IFTを制御するメカニズムに関してはほとんど不明である。本研究ではIFTの制御機構の解明を目指す。

Outline of Final Research Achievements

To elucidate the pathophysiological mechanism of ciliopathy, we screened for molecules that interact with ciliopathy-causing kinases Ick and Mak, and identified Sdccag8, a known ciliopathy gene, as a candidate factor. Immunoprecipitation revealed that Ick and Mak interact with the C-terminal region of Sdccag8 (Sdccag8-C). In addition, we found that Sdccag8-C is required for the localization of Sdccag8 to the basal body and for cilia formation. Our results suggest that Sdccag8 functionally interacts with Ick and Mak.

Academic Significance and Societal Importance of the Research Achievements

ヒトのSDCCAG8遺伝子において、SDCCAG8のC末端領域(Sdccag8-C)を欠失すると予想される変異が網膜変性をはじめとした多様な臓器の障害と関連することが報告されている。私たちの結果より、Sdccag8-CはSdccag8の中心体や基底小体への局在に必要なIckやMakとの結合モジュールを構成し、繊毛形成とそれに関連した臓器の発生や恒常性維持に必須であることが示唆された。本研究により、SDCCAG8遺伝子の変異と関連した繊毛病の病態メカニズムに対する知見を得ることができた。

Report

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

    (19 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (6 results) Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] King's College London/Royal Veterinary College/The Francis Crick Institute(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Milan(イタリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Mater Dei Hospital(マルタ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Ghent University(ベルギー)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] The Children's Hospital of Philadelphia(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2021 Research-status Report
  • [Journal Article] Multiple knockout mouse and embryonic stem cell models reveal the role of miR-124a in neuronal maturation2022

    • Author(s)
      Chaya Taro、Maeda Yamato、Sugimura Ryo、Okuzaki Daisuke、Watanabe Satoshi、Varner Leah R.、Motooka Daisuke、Gyoten Daichi、Yamamoto Haruka、Kato Hidemasa、Furukawa Takahisa
    • Journal Title

      Journal of Biological Chemistry

      Volume: 298 Issue: 9 Pages: 102293-102293

    • DOI

      10.1016/j.jbc.2022.102293

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The carboxyl-terminal region of SDCCAG8 comprises a functional module essential for cilia formation as well as organ development and homeostasis2022

    • Author(s)
      Tsutsumi R, Chaya T, Tsujii T, Furukawa T
    • Journal Title

      Journal of Biological Chemistry

      Volume: 298(3) Issue: 3 Pages: 101686-101686

    • DOI

      10.1016/j.jbc.2022.101686

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deficiency of the neurodevelopmental disorder-associated gene <i>Cyfip2</i> alters the retinal ganglion cell properties and visual acuity2021

    • Author(s)
      Chaya Taro、Ishikane Hiroshi、Varner Leah R、Sugita Yuko、Maeda Yamato、Tsutsumi Ryotaro、Motooka Daisuke、Okuzaki Daisuke、Furukawa Takahisa
    • Journal Title

      Human Molecular Genetics

      Volume: 31 Issue: 4 Pages: 535-547

    • DOI

      10.1093/hmg/ddab268

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Broad locations of antigenic regions for anti-TRPM1 autoantibodies in paraneoplastic retinopathy with retinal ON bipolar cell dysfunction2021

    • Author(s)
      Gyoten D, Ueno S, Okado S, Chaya T, Yasuda S, Morimoto T, Kondo M, Kimura K, Hayashi T, Leroy BP, Woo SJ, Mukai R, Joo K, Furukawa T.
    • Journal Title

      Exp Eye Res

      Volume: 212 Pages: 108770-108770

    • DOI

      10.1016/j.exer.2021.108770

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A recessive PRDM13 mutation results in congenital hypogonadotropic hypogonadism and cerebellar hypoplasia2021

    • Author(s)
      Whittaker D.E., Oleari R, Gregory L.C., Le Q.P., Williams H.J., Torpiano J.G., Formosa N, Cachia M.J., Field D, Lettieri A, Ocaka L.A., Paganoni A.J.J., Rajabali S.H., Riegman K.L.H., De M.L.B., Chaya T, Robinson I.C.A.F., Furukawa T, Cariboni A, Basson M.A, Dattani M.T.
    • Journal Title

      Journal of Clinical Investigation

      Volume: 131 Issue: 24

    • DOI

      10.1172/jci141587

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Functional analysis of Samd11, a retinal photoreceptor PRC1 component, in establishing rod photoreceptor identity2021

    • Author(s)
      Kubo Shun、Yamamoto Haruka、Kajimura Naoko、Omori Yoshihiro、Maeda Yamato、Chaya Taro、Furukawa Takahisa
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 4180-4180

    • DOI

      10.1038/s41598-021-83781-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Post-translational modification enzymes as key regulators of ciliary protein trafficking2021

    • Author(s)
      Chaya Taro、Furukawa Takahisa
    • Journal Title

      The Journal of Biochemistry

      Volume: - Issue: 6 Pages: 633-642

    • DOI

      10.1093/jb/mvab024

    • NAID

      40022686979

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The potential role of Arhgef33 RhoGEF in foveal development in the zebra finch retina2020

    • Author(s)
      Sugiyama Takefumi、Yamamoto Haruka、Kon Tetsuo、Chaya Taro、Omori Yoshihiro、Suzuki Yutaka、Abe Kentaro、Watanabe Dai、Furukawa Takahisa
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 21450-21450

    • DOI

      10.1038/s41598-020-78452-6

    • NAID

      120006952776

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Functional analysis of the ciliary protein transport regulating kinase ICK in retinal photoreceptor cells2023

    • Author(s)
      Taro Chaya, Ryotaro Tsutsumi, Yamato Maeda, Takahisa Furukawa
    • Organizer
      the Cold Spring Harbor Asia conference on Cilia & Centrosomes
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Functional mechanisms of cilia and their roles in sensory perceptions2022

    • Author(s)
      Taro Chaya, Ryotaro Tsutsumi, Takahisa Furukawa
    • Organizer
      第95回日本薬理学会年会 感覚研究コンソーシアム共催シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 繊毛内におけるタンパク質輸送制御のメカニズムと生理的意義の解明2020

    • Author(s)
      茶屋 太郎
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 繊毛病の発症メカニズム解明と治療法開発を目指して2020

    • Author(s)
      茶屋 太郎
    • Organizer
      感覚研究コンソーシアム 第1回ピッチイベント
    • Related Report
      2020 Research-status Report
    • Invited
  • [Remarks] 大阪大学蛋白質研究所分子発生学研究室ホームページ

    • URL

      http://www.protein.osaka-u.ac.jp/furukawa_lab/

    • Related Report
      2022 Annual Research Report 2021 Research-status Report 2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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