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Primary cilia-mediated signaling for cell growth and differentiation

Research Project

Project/Area Number 21H02696
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49010:Pathological biochemistry-related
Research InstitutionMie University

Principal Investigator

Inagaki Masaki  三重大学, 医学系研究科, 客員教授 (30183007)

Co-Investigator(Kenkyū-buntansha) 西村 有平  三重大学, 医学系研究科, 教授 (30303720)
山川 大史  三重大学, 医学系研究科, 助教 (20631097)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords一次線毛 / 脂肪前駆細胞 / 細胞分化 / 細胞増殖 / 脂質ラフト / カベオラ / ユビキチン / 細胞増殖受容体
Outline of Research at the Start

一次線毛によるシグナル制御と細胞増殖・分化を解明するため、一次線毛の制御因子をノックアウトしたマウスやゼブラフィッシュを作製と解析を進める。特に、研究代表者らが発見したユビキチンシグナル伝達系による一次線毛制御の中核因子(トリコプレインやKCTD17など)のノックアウトマウス解析から、一次線毛が脂肪細胞分化や肥満傾向に影響すること、一次線毛の新しい細胞機能として脂質ラフトの動態を制御することを見出しており、本研究で詳細を明らかにする。

Outline of Final Research Achievements

We have found that trichoplein (TCHP), a ciliogenesis inhibitor identified by us, affects primary cilia elongation in pre-adipocytes in TCHP KO mice, and this suppresses insulin-Akt signaling. TCHP KO mice have anti-obesity effect, and we analyzed various adipose differentiation markers in visceral fat. We revealed that white adipose tissue becomes beige adipose tissue increasing thermogenic ability. Furthermore, ectopic fat accumulation in the liver was suppressed, and we are currently analyzing this. We also generated KCTD17-deficient mice, which have an antagonistic effect on TCHP, and analyzed whether there is an opposite effect on primary cilia formation or an obesity-promoting effect, and the molecular mechanism of primary cilia formation and adipocyte differentiation was clarified.

Academic Significance and Societal Importance of the Research Achievements

脂肪前駆細胞において、一次線毛を伸長させるメカニズムの詳細を明確にすることで、細胞の分化をコントロールできるようになり、脂肪細胞量や脂肪量を調節することができるようになる。内臓脂肪や皮下脂肪では、直接脂肪前駆細胞の一次線毛が伸長して、細胞分化を制御していることが考えられるが、肝臓などの異所性脂肪蓄積には間接的な関与が考えられ、本研究の遂行は一次線毛を標的とした新たな治療法の創出に貢献できることが期待できる。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (16 results)

All 2023 2022 2021 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Cilia‐Mediated Insulin/Akt and ST2/JNK Signaling Pathways Regulate the Recovery of Muscle Injury2022

    • Author(s)
      Yamakawa Daishi、Tsuboi Junya、Kasahara Kousuke、Matsuda Chise、Nishimura Yuhei、Kodama Tatsuya、Katayama Naoyuki、Watanabe Masatoshi、Inagaki Masaki
    • Journal Title

      Advanced Science

      Volume: 10 Issue: 1 Pages: 2202632-2202632

    • DOI

      10.1002/advs.202202632

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Primary cilia and lipid raft dynamics2021

    • Author(s)
      Nishimura Yuhei、Yamakawa Daishi、Uchida Katsunori、Shiromizu Takashi、Watanabe Masatoshi、Inagaki Masaki
    • Journal Title

      Open Biology

      Volume: 11 Issue: 8 Pages: 210130-210130

    • DOI

      10.1098/rsob.210130

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Primary ciliary signaling: links with the cell cycle2021

    • Author(s)
      Kasahara Kousuke、Inagaki Masaki
    • Journal Title

      Trends in Cell Biology

      Volume: 31 Issue: 12 Pages: 954-964

    • DOI

      10.1016/j.tcb.2021.07.009

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Aurora A and AKT Kinase Signaling Associated with Primary Cilia2021

    • Author(s)
      Nishimura Yuhei、Yamakawa Daishi、Shiromizu Takashi、Inagaki Masaki
    • Journal Title

      Cells

      Volume: 10 Issue: 12 Pages: 3602-3602

    • DOI

      10.3390/cells10123602

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Primary cilia regulate the recovery of muscle injury through insulin/Akt and ST2/JNK signaling pathways2023

    • Author(s)
      Yamakawa D, Tsuboi J, Kasahara K, Matsuda C, Nishimura Y, Kodama T, Katayama N, Watanabe M, Inagaki M.
    • Organizer
      Cold Spring Harbor Asia Conference Cilia & Centrosomes
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 一次線毛は脂質ラフトの動態制御を介して脂肪細胞分化に関与する2022

    • Author(s)
      西村 有平、山川 大史、白水 崇、稲垣 昌樹
    • Organizer
      第51回日本心脈管作動物質学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ゼブラフィッシュヒレ再生における一次線毛の役割2022

    • Author(s)
      白水 崇、山川 大史、稲垣 昌樹、西村 有平
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 組織修復における一次繊毛制御因子トリコプレインの新たな役割2022

    • Author(s)
      西村 有平、山川 大史、白水 崇、渡邉 昌俊、稲垣 昌樹
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] An investigation of the role of primary cilia in the repairing process after brain injury2022

    • Author(s)
      Takashi Shiromizu, Ryohei Shibata, Daishi Yamakawa, Masaki Inagaki and Yuhei Nishimura
    • Organizer
      第95回日本薬理学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Suppression of obesity and hepatic steatosis by modulating ciliogenesis2021

    • Author(s)
      Daishi Yamakawa, Kousuke Kasahara, Masatoshi Watanabe, Masaki Inagaki
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ユビキチン修飾系による一次線毛動態制御と疾患治療2021

    • Author(s)
      笠原広介、山川大史、稲垣昌樹
    • Organizer
      第25回日本がん分子標的治療学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 一次繊毛による細胞増殖・分化制御と疾患2021

    • Author(s)
      笠原広介、山川大史、稲垣昌樹
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Primary cilia regulate adipogenesis through lipid raft dynamics2021

    • Author(s)
      Yuhei Nishimura, Daishi Yamakawa, Daisuke Katoh, Kousuke Kasahara, Takashi Shiromizu, Makoto Matsuyama, Chise Matsuda, Yumi Maeno, Masatoshi Watanabe, and Masaki Inagaki
    • Organizer
      The 23rd Korea-Japan Joint Seminar on Pharmacology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 三重大学大学院医学系研究科統合薬理学分野

    • URL

      https://www.medic.mie-u.ac.jp/organization/course/pharmaco/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 三重大学大学院医学系研究科分子生理学分野

    • URL

      https://www.medic.mie-u.ac.jp/organization/course/physiology/

    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 筋損傷時の筋再生を促進するための治療用インターロイキン13(IL-13)2022

    • Inventor(s)
      稲垣昌樹、山川大史、西村有平
    • Industrial Property Rights Holder
      稲垣昌樹、山川大史、西村有平
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-097615
    • Filing Date
      2022
    • Acquisition Date
      2022
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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