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A new era in organelle biology

Research Project

Project/Area Number 21K19347
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 48:Biomedical structure and function and related fields
Research InstitutionHokkaido University

Principal Investigator

Ohba Yusuke  北海道大学, 医学研究院, 教授 (30333503)

Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords細胞内小器官 / バイオイメージング / オルガネラマーカー / 蛍光バイオイメージング / エンドサイトーシス / エンドソーム / リソソーム
Outline of Research at the Start

これまで個別に機能すると考えられてきた細胞内小器官(オルガネラ)について、応募者はオルガネラ間相互作用や複数のマーカーが陽性になる新規の遷移状態にあるオルガネラを見出してきた。本研究では、それらの動態の統合理解を目指し、蛍光バイオイメージングを用いて時空間的解析を行う。将来的には、抜本的なオルガネラ病や他の疾患に対する治療法開発を目標として研究を行う。

Outline of Final Research Achievements

Endocytosis is a mechanism by which extracellular substances are taken into the cell. We have identified a novel intracellular vesicle in which early and late endosomal markers are co-localized. In this study, we analyzed the vesicles in detail using fluorescence live cell imaging, mutant construction, various inhibitor treatments, and correlative electron and fluorescence microscopy. We found that the vesicles have properties similar to macropinosomes and are transported in the degradation pathway among the endocytosis pathways. Kinases and small G proteins involved in the formation of vesicles were also identified. Furthermore, we determined their physiological function as endocytosis of large-sized substances.

Academic Significance and Societal Importance of the Research Achievements

本研究で解析したような遷移状態にあるオルガネラはこれまでに報告がなく、その特性、形成機序、および生理的機能の一部を明らかにしたことにより、今後のオルガネラ研究に新展開をもたらすと期待される。オルガネラの機能異常により生じるオルガネラ病の中には、未だ原因不明の疾患も少なくない。本研究成果により、これらの疾患の解明や治療困難な疾患に対する新たな知見を提供することも期待される。

Report

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

    (17 results)

All 2023 2022 2021 Other

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Interaction between PI3K and the VDAC2 channel tethers Ras-PI3K-positive endosomes to mitochondria and promotes endosome maturation2023

    • Author(s)
      Satoh Aya O.、Fujioka Yoichiro、Kashiwagi Sayaka、Yoshida Aiko、Fujioka Mari、Sasajima Hitoshi、Nanbo Asuka、Amano Maho、Ohba Yusuke
    • Journal Title

      Cell Reports

      Volume: 42 Issue: 3 Pages: 112229-112229

    • DOI

      10.1016/j.celrep.2023.112229

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Schlafen family member 11 indicates favorable prognosis of patients with head and neck cancer following platinum-based chemoradiotherapy2023

    • Author(s)
      Hamada Seijiro、Kano Satoshi、Murai Junko、Suzuki Takayoshi、Tsushima Nayuta、Mizumachi Takatsugu、Suzuki Masanobu、Takashima Tsuyoshi、Taniyama Daiki、Sakamoto Naoya、Fujioka Yoichiro、Ohba Yusuke、Homma Akihiro
    • Journal Title

      Frontiers in Oncology

      Volume: 12 Pages: 978875-978875

    • DOI

      10.3389/fonc.2022.978875

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stimulation of the mitochondrial calcium uniporter mitigates chronic heart failure-associated ventricular arrhythmia in mice2022

    • Author(s)
      Hagiwara Hikaru、Watanabe Masaya、Fujioka Yoichiro、Kadosaka Takahide、Koizumi Takuya、Koya Taro、Nakao Motoki、Kamada Rui、Temma Taro、Okada Kazufumi、Moreno Jose Antonio、Kwon Ohyun、Sabe Hisakata、Ohba Yusuke、Anzai Toshihisa
    • Journal Title

      Heart Rhythm

      Volume: 19 Issue: 10 Pages: 1725-1735

    • DOI

      10.1016/j.hrthm.2022.05.034

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Secretory glycoprotein NS1 plays a crucial role in the particle formation of flaviviruses2022

    • Author(s)
      Tamura Tomokazu、Torii Shiho、Kajiwara Kentaro、Anzai Itsuki、Fujioka Yoichiro、Noda Kisho、Taguwa Shuhei、Morioka Yuhei、Suzuki Rigel、Fauzyah Yuzy、Ono Chikako、Ohba Yusuke、Okada Masato、Fukuhara Takasuke、Matsuura Yoshiharu
    • Journal Title

      PLOS Pathogens

      Volume: 18 Issue: 6 Pages: e1010593-e1010593

    • DOI

      10.1371/journal.ppat.1010593

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A method for the generation of pseudovirus particles bearing SARS coronavirus spike protein in high yields2022

    • Author(s)
      Fujioka Yoichiro、Kashiwagi Sayaka、Yoshida Aiko、Satoh Aya O.、Fujioka Mari、Amano Maho、Yamauchi Yohei、Ohba Yusuke
    • Journal Title

      Cell Structure and Function

      Volume: 47 Issue: 1 Pages: 43-53

    • DOI

      10.1247/csf.21047

    • ISSN
      0386-7196, 1347-3700
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Direct visualization of GLP‐1 secretion by fluorescent fusion proteins2022

    • Author(s)
      Tsuzuki Atsushi、Fujioka Yoichiro、Yoshida Aiko、Kashiwagi Sayaka、Amano Maho、Hira Tohru、Nakamura Akinobu、Miyoshi Hideaki、Atsumi Tatsuya、Ohba Yusuke
    • Journal Title

      Journal of Diabetes Investigation

      Volume: - Issue: 7 Pages: 1134-1139

    • DOI

      10.1111/jdi.13800

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ウイルスの細胞侵入を視る2022

    • Author(s)
      藤岡容一朗,天野麻穂,大場雄介
    • Journal Title

      医学のあゆみ

      Volume: 280 Pages: 922-925

    • Related Report
      2021 Research-status Report
  • [Journal Article] 弱い相互作用のインターフェースと細胞応答の当時可視化を実現するイメージング技術2022

    • Author(s)
      吉田藍子,藤岡容一朗,天野麻穂,大場雄介
    • Journal Title

      Drug Delicery System

      Volume: 37 Pages: 102-111

    • Related Report
      2021 Research-status Report
  • [Journal Article] A method for the generation of pseudotyped virus particles bearing SARS coronavirus spike protein in high yields2021

    • Author(s)
      Fujioka Yoichiro、Kashiwagi Sayaka、Yoshida Aiko、Satoh Aya O.、Fujioka Mari、Amano Maho、Yamauchi Yohei、Ohba Yusuke
    • Journal Title

      bioRxiv

      Volume: - Pages: 21-21

    • DOI

      10.1101/2021.07.30.454063

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Presentation] Visualization, analysis, and manipulation of cell dynamics using bioimaging and optogenetics techniques and their applications2023

    • Author(s)
      Yusuke Ohba
    • Organizer
      1st Material Symbiosis International symposium/3rd GI-CoRE/GSD International symposium/28th Pharmascience Forum
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Visualization of the field for virus-host cell interaction by correlative light and atomic force microscopy (CLAM)2023

    • Author(s)
      Yusuke Ohba
    • Organizer
      U.S.-Japan Cooperative Medical Sciences Program (USJCMSP), International Conference on Emerging Infectious Diseases in the Pacific Rim, Acute Respiratory Infections (ARI) Panel Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ウイルスの宿主細胞侵入過程のイメージング2022

    • Author(s)
      大場雄介
    • Organizer
      遺伝子デリバリー研究会第21回シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] オプトジェネティクスを用いたEGFRシグナル制御機構の解析2022

    • Author(s)
      鬼塚洋之進、藤岡容一朗、吉田藍子、柏木彩花、天野麻穂、大場雄介
    • Organizer
      第74回日本細胞生物学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] インフルエンザウイルス感染伝播機構の解明2022

    • Author(s)
      小澤史弥、藤岡容一朗、吉田藍子、柏木彩花、天野麻穂、大場雄介
    • Organizer
      第74回日本細胞生物学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 蛍光-AFM相関観察によるウイルス-宿主相互作用の可視化2022

    • Author(s)
      大場雄介
    • Organizer
      第91回寄生虫学会大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Remarks] 細胞生理学教室ホームページ

    • URL

      https://cp.med.hokudai.ac.jp

    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] シュードタイプウイルス集団及びその製造方法2021

    • Inventor(s)
      大場雄介,藤岡容一朗
    • Industrial Property Rights Holder
      北海道大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-125781
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-07-13   Modified: 2024-01-30  

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