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Development of Semisynthetic Probe for Imaging ER stress

Research Project

Project/Area Number 21K19048
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 37:Biomolecular chemistry and related fields
Research InstitutionKyushu University (2022-2023)
Osaka University (2021)

Principal Investigator

Hori Yuichiro  九州大学, 理学研究院, 教授 (00444563)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
KeywordsSemisyntheticプローブ / ミスフォールディング / ラベル化 / スイッチ機能 / UGGT / 小胞体ストレス / フォールディングセンサー / ミスフォールディング蛋白質 / 蛍光イメージング / ERストレス
Outline of Research at the Start

本研究では、蛍光スイッチ機能を持つ合成蛍光色素とミスフォールディング蛋白質の分子認識機能を持つ蛋白質を連結した“Semisynthetic”プローブを開発する。色素と蛋白質を細胞内で連結するために、独自のPYPタグ蛋白質ラベル化技術を応用する。このプローブを用いて、小胞体ストレス下のミスフォールディング蛋白質を生細胞で検出する。更に、この技術を応用して糖尿病発症過程の解明に役立てることを目指す。

Outline of Final Research Achievements

When the endoplasmic reticulum is stressed, misfolded proteins that cannot form native functional structures accumulate. If these misfolded proteins are not refolded or removed normally, they can cause various diseases such as diabetes, neurodegenerative diseases, or cancer. In this study, we constructed a technical basis for semisynthetic probes consisting of synthetic fluorescent dyes and proteins for the purpose of detecting protein misfolding.

Academic Significance and Societal Importance of the Research Achievements

小胞体ストレスが引き起こすタンパク質のミスフォールディングは、様々な疾患の原因となることから、タンパク質のミスフォールディングを生きた細胞で可視化することは、疾病の発症機構の解明と治療に有用な情報を提供する。また、合成色素とタンパク質からなるSemisyntheticプローブは、それぞれの分子単独では検出不可能な生命現象を調べることが可能であることから、そのプローブ構築に関する知見は、ケミカルバイオロジーの発展に大きく貢献する。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 5 results)

  • [Int'l Joint Research] The University of Edinburgh(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Bath University(英国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] No-wash fluorogenic labeling of proteins for reversible photoswitching in live cells2024

    • Author(s)
      Torii Kenji、Benson Sam、Hori Yuichiro、Vendrell Marc、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 15 Issue: 4 Pages: 1393-1401

    • DOI

      10.1039/d3sc04953a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Recent advancements of fluorescent biosensors using semisynthetic probes2024

    • Author(s)
      Reja Shahi Imam、Minoshima Masafumi、Hori Yuichiro、Kikuchi Kazuya
    • Journal Title

      Biosensors and Bioelectronics

      Volume: 247 Pages: 115862-115862

    • DOI

      10.1016/j.bios.2023.115862

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Visualization of multiple localizations of GLUT4 by fluorescent probes of PYP-tag with designed unnatural warhead2023

    • Author(s)
      Nishiura Miyako、Hori Yuichiro、Umeno Maho、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 14 Issue: 22 Pages: 5925-5935

    • DOI

      10.1039/d3sc00724c

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Persistent Fluorescence Switching of a Probe Using a Photochromic Quencher with High Photostability Assisted by Protein-Surface Modification2023

    • Author(s)
      Torii Kenji、Hori Yuichiro、Kikuchi Kazuya
    • Journal Title

      Analytical Chemistry

      Volume: 95 Issue: 23 Pages: 8834-8841

    • DOI

      10.1021/acs.analchem.3c00163

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An “OFF-ON-OFF” fluorescence protein-labeling probe for real-time visualization of the degradation of short-lived proteins in cellular systems2022

    • Author(s)
      Reja Shahi Imam、Hori Yuichiro、Kamikawa Takuya、Yamasaki Kohei、Nishiura Miyako、Bull Steven D.、Kikuchi Kazuya
    • Journal Title

      Chemical Science

      Volume: 13 Issue: 5 Pages: 1419-1427

    • DOI

      10.1039/d1sc06274c

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ラベル化ケミストリーによる 膜タンパク質の多重局在の可視化2023

    • Author(s)
      堀 雄一郎
    • Organizer
      蛋白質科学会第23回年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] タンパク質の多重局在を可視化する タンパク質ラベル化技術2023

    • Author(s)
      堀 雄一郎
    • Organizer
      日本薬学会第143年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] タンパク質の多重局在を可視化する タンパク質ラベル化技術2023

    • Author(s)
      堀 雄一郎
    • Organizer
      日本薬学会第143回年会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 合成蛍光分子とタンパク質を駆使した生体分子イメージング2022

    • Author(s)
      堀 雄一郎
    • Organizer
      医用分光学研究会第20回年会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Fluorescence Imaging of Endogenous Biomolecules Using Fluorogen/Protein Hybrid Probes2021

    • Author(s)
      Yuichiro Hori, Kazuya Kikuchi
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Fluorescent Labeling Probes that Selectively Recognize Intracellular/Cell-Surface Proteins2021

    • Author(s)
      Yuichiro Hori, Miyako Nishiura, Kazuya Kikuchi
    • Organizer
      AIMECS 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-07-13   Modified: 2025-01-30  

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