Updated on 2026/01/08

写真a

SAGANE Yoshimasa

Professor

Title

Professor

External Link

Studying abroad experiences 【 display / non-display

  • 2003.04 - 2011.09   Sars International Centre for Marine Molecular Biology   Postdoctoral Fellow

Degree 【 display / non-display

  • 博士(生物産業学) ( 2001.03   東京農業大学 )

Employment Record in Research 【 display / non-display

  • Tokyo University of Agriculture   Faculty of Bio-Industry   -

    2001.04 - 2003.03

  • Tokyo University of Agriculture   Faculty of Bio-Industry   Department of Food and Cosmetic Science   Associate Professor

    2011.09 - 2014.03

  • Tokyo University of Agriculture   Faculty of Bio-Industry   Department of Food and Cosmetic Science   Professor

    2014.04 - 2018.03

  • Tokyo University of Agriculture   Faculty of Bio-Industry   Department of Food, Aroma and Cosmetic Chemistry   Professor

    2018.04

External Career 【 display / non-display

  • Sars International Centre for Marine Molecular Biology   Postdoctoral Fellow

    2003.04 - 2011.09

      More details

    Country:Norway

Professional Memberships 【 display / non-display

  • 日本分子生物学会

    2018

  • 食香粧研究会

    2012

  • 日本細菌学会

    2012

  • 日本生化学会

    2012

Research Areas 【 display / non-display

  • Life Science / Bacteriology

  • Life Science / Structural biochemistry

Research Interests 【 display / non-display

  • Alternative protein

  • Protein chemistery

  • Clostridium botulinum

  • Botulinum toxin complex

  • Molecular Biology

Papers 【 display / non-display

  • ボツリヌスC型毒素複合体に見出された経口毒性強化型変異 Invited

    相根義昌、宮下慎一郎

    月刊細胞   58 ( 1 )   51 - 55   2026.01

     More details

    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Effects of botulinum neurotoxin-associated proteins on cellular organelle dynamics in NRK-52E cells Reviewed International journal

    I-Hsun Huang , Shin-Ichiro Miyashita , Yoshimasa Sagane

    Biochemical and Biophysical Research Communications   765   151800   2025.06

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.bbrc.2025.151800

  • ボツリヌス毒素の構造と機能解析から導かれる応用可能性 Invited

    相根義昌、宮下慎一郎

    グリーンテクノ情報   19 ( 4 )   15 - 19   2024.03

     More details

    Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (bulletin of university, research institution)   Publisher:NPO法人グリーンテクノバンク  

  • Characterization of Serotype CD Mosaic Botulinum Neurotoxin in Comparison with Serotype C and A Reviewed International coauthorship International journal

    Shin-Ichiro Miyashita , Shura Karatsu , Mako Fujiishi , I Husn Huang , Yuki Nagashima , Tamaki Morobishi , Keita Hosoya , Tsuyoshi Hata , Min Dong , Yoshimasa Sagane

    Toxins   15 ( 2 )   123   2023.02

     More details

    Authorship:Last author   Language:English   Publishing type:Research paper (scientific journal)  

    Botulinum neurotoxin (BoNT), produced by Clostridium botulinum, cleaves proteins involved in neurotransmitter release, thereby triggering flaccid paralyses, which are responsible for botulism. BoNT is classified into seven serotypes (BoNT/A-G); BoNT/A and BoNT/B are used as medical therapeutics and anti-wrinkle reagents. In this study, we investigated the efficacy of BoNT/CD, a mosaic toxin of BoNT/C and BoNT/D, to assess its potential as a therapeutic alternative for BoNT/A. In a cultured neuron assay, BoNT/CD cleaved syntaxin and SNAP-25 with higher efficacy than BoNT/C and BoNT/A. Intramuscularly administrated BoNT/CD induced dose-dependent muscle paralysis, and the paralysis lasted ~21 days in a mouse digit abduction score assay (BoNT/A-induced paralysis lasted ~30 days). BoNT/C failed to induce local paralysis without systemic toxicity. Multiple alignment analyses of the amino acid sequences of the receptor binding domain (HC) of eight BoNT/CDs and two BoNT/Ds showed sequence clustering in five groups. Comparing BoNT/CD strain 003-9 (BoNT/CD003-9) and strain 6813 (BoNT/CD6813) showed that both BoNT/CDs displayed similar efficacies in cultured neurons, but BoNT/CD003-9 displayed higher efficacy in a mouse model than BoNT/CD6813. These findings suggest that BoNT/CD may be a potential alternative for patients who do not respond to existing BoNT-based therapeutics.

    DOI: https://doi.org/10.3390/toxins15020123

  • Variants of hemagglutinin-33 in the serotype C botulinum progenitor toxin complex boost its oral toxicity Reviewed

    Karatsu Shura, Miyashita Sin-Ichiro, Hata Tsuyoshi, Huang I Hsun, Hosoya Keita, Sagane Yoshimasa

    49 ( 1 )   19 - 28   2023.01

     More details

    Authorship:Last author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

display all >>

Books and Other Publications 【 display / non-display

  • 生食のはなし

    川本 伸一(編集代表)/朝倉 宏・稲津 康弘・畑江 敬子・山﨑 浩司(編)( Role: Contributor ,  危害要因コラム③ボツリヌス)

    朝倉書店  2023.04  ( ISBN:978-4-254-43130-8

     More details

    Total pages:160   Responsible for pages:105-106   Language:Japanese   Book type:Textbook, survey, introduction

    肉や魚などを加熱せずに食べる「生食」の文化や注意点をわかりやすく解説。調理現場や家庭で活用しやすいよう食材別に章立てし,実際の食中毒事例をまじえつつ危険性や対策を紹介。

  • フレーバー・クリエーション

    ジョン・ライト(著) 藤森 嶺、和智 進一、寺本 明子、相根 義昌(訳)( Role: Joint translator)

    講談社  2014.05 

     More details

    Language:Japanese   Book type:Scholarly book

  • Botulinum Toxin Complex: A Delivery Vehicle of Botulinum Neurotoxin Traveling Digestive Tract

    Sagane, Y., Inui, K., Miyashita S, -I., Miyata, K., Suzuki, T., Niwa, K., Watanabe, T.( Role: Joint author)

    InTech  2012.08 

     More details

    Language:English   Book type:Scholarly book

  • Structure and function of the Clostridium botulinum serotypes C and D toxin complex. In: Current Topics in Food Science and Technology.

    Watanabe, T., Sagane, Y., Mutoh, S., Suzuki, T., Hasegawa, K., Kouguchi, H., and Ohyama, T. (Nagai, T., Suzuki, N., and Nagashima, T. eds) ( Role: Joint author)

    Research Signpost  2005 

     More details

    Language:English   Book type:Scholarly book

    ボツリヌスCおよびD型毒素の構造と機能に関する研究成果をまとめた

  • 初歩からのバイオ実験

    大山徹、渡部俊弘 編著 石井正治、鎌口有秀、川崎信治、川本尋義、相根義昌、高野克己、中川智行、新村洋一、西澤信、桃木芳枝、山川隆、横田博、横浜道成 共著( Role: Joint author)

    三共出版  2002.05 

     More details

    Language:Japanese   Book type:Textbook, survey, introduction

    分子生物学研究に必要な基礎実験のプロトコールを図入りでまとめた解説書

Industrial Property Rights 【 display / non-display

  • 血管内皮機能を向上する作用を有する剤又は食品

    南 和広, 樫村 修生, 丹羽 光一, 相根 義昌, 渡部 俊弘, 前崎 祐二, 清柳 典子

     More details

    Application no:特願2017-113985  Date applied:2017.06

    Announcement no:特開2018-203695  Date announced:2018.12

    Country of applicant:Domestic  

  • アセチルコリンエステラーゼ活性を有するタンパク質、その精製方法および遺伝子

    桃木 芳枝, 相根 義昌

     More details

    Application no:特願2003-154226  Date applied:2003.05

    Announcement no:特開2004-350616  Date announced:2004.12

    Country of applicant:Domestic  

Scientific Research Funds Acquisition Results 【 display / non-display

  • 経口毒性強化型ボツリヌス毒素複合体の体内侵入メカニズムの解明

    Grant number:25K10348  2025.04 - 2028.03

    科学研究費補助金  基盤研究(C)

    相根義昌

      More details

    Authorship:Principal investigator 

  • 経口毒性が強化された変異型ボツリヌス毒素複合体の機能解析

    Grant number:22K07057  2022.04 - 2025.03

    科学研究費補助金  基盤研究(C)

    相根義昌

      More details

    Authorship:Principal investigator 

  • 新規に見出されたボツリヌス毒素複合体の細胞認識における「機能シフト機構」の解明

    Grant number:18K07123  2018.04 - 2021.03

    科学研究費補助金  基盤研究(C)

    相根義昌

      More details

    Authorship:Principal investigator 

  • ボツリヌス神経毒素結合タンパク質NTNHAの体内侵入に寄与する生体分子の解明

    Grant number:15K08474  2015.04 - 2018.03

    科学研究費補助金  基盤研究(C)

    相根義昌

      More details

    Authorship:Principal investigator 

  • ボツリヌス神経毒素結合タンパク質NTNHAの細胞層透過メカニズム

    Grant number:25860325  2013.04 - 2015.03

    科学研究費補助金  若手研究(B)

    相根義昌

      More details

    Authorship:Principal investigator 

display all >>

Other External Funds 【 display / non-display

  • 新規抽出技術を用いた微細藻類の代替タンパク質資源としての利用

    2022.06 - 2025.03

    東京農業大学  東京農業大学 大学戦略研究プロジェクト 

    相根義昌

      More details

    Authorship:Principal investigator 

  • 地域主体のアザラシの循環型順応的管理システムの構築を目指して 〜アザラシの生態系サービスと有効利用の可能性を探る〜

    2020.04 - 2022.03

    東京農業大学  東京農業大学 学部長主導型研究プロジェクト 

    吉田 穂積

      More details

    Authorship:Coinvestigator(s) 

Past of Cooperative Research 【 display / non-display

  • iFOODnet: Towards a Norway & Japan Innovative Research & Training Network Driving Next-Generation Food Systems

    Grant number:13179  2021.02 - 2024.01

    The Research Council of Norway  International Partnerships for Excellent Education, Research and Innovation (INTPART)  International Cooperative Research

      More details

    Authorship:Coinvestigator(s) 

Presentations 【 display / non-display

  • Molecular Insights Supporting the Quality of Botulinum Toxin Complex Invited International conference

    Yoshimasa Sagane

    Aesthetic & Anti-Aging Medicine World Congress  2025.11 

     More details

    Event date: 2025.11

    Language:English   Presentation type:Oral presentation (invited, special)  

    Venue:The Prince Park Tower Tokyo   Country:Japan  

  • 食品を守る研究から医療や美容分野へ  細菌毒素が拓く科学の可能性 Invited

    相根義昌

    日本食品保蔵科学会第74回(北海道オホーツク)・創立50周年記念大会  2025.06 

     More details

    Event date: 2025.06

  • 長芋パウダーはアイスクリームの安定化剤になるか? International conference

    中澤洋三、村田雪乃、宮下慎一郎、南和広、相根義昌

    日本食品保蔵科学会大会講演要旨集  2022.06 

     More details

    Event date: 2022.06

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 抗体医薬を用いた感染制御戦略 ボツリヌス神経毒素を利用した神経細胞への抗体送達によるボツリヌス中毒の治療 Invited International conference

    宮下 慎一郎, Zhang Jie, Zhang Sicai, 相根 義昌, Shoemaker Charles, Dong Min

    日本細菌学雑誌  2022.02 

     More details

    Event date: 2022.02

    Language:English   Presentation type:Oral presentation (general)  

  • ボツリヌス毒素複合体の上皮細胞への侵入経路の解明 International conference

    HUANG I Hsun , 宮下慎一郎 , 唐津修羅 , 細谷圭汰 , 長島有希 , 諸菱環 , 相根義昌

    日本分子生物学会年会プログラム・要旨集(Web)  2021 

     More details

    Event date: 2021

    Language:Japanese   Presentation type:Oral presentation (general)  

display all >>

Teaching Experience 【 display / non-display

  • 生物化学実験

    Institution:Tokyo University of Agriculture

  • 栄養学

    Institution:Tokyo University of Agriculture

  • 生物化学(二)

    Institution:Tokyo University of Agriculture

  • 生物化学(一)

    Institution:Tokyo University of Agriculture

  • 微生物学

    Institution:Tokyo University of Agriculture

display all >>

Committee Memberships 【 display / non-display

  • 日本細菌学会   北海道支部評議員  

    2012   

      More details

    Committee type:Academic society

Academic Activities 【 display / non-display

  • 第98回日本生化学会大会口頭発表「タンパク質04」座長 International contribution

    Role(s): Panel moderator, session chair, etc.

    公益社団法人日本生化学会  ( 国立京都国際会館(京都府京都市) ) 2025.11

     More details

    Type:academic_society_etc 

  • 第97回日本生化学会大会口頭発表「タンパク質02」座長 International contribution

    Role(s): Panel moderator, session chair, etc.

    公益社団法人日本生化学会  ( パシフィコ横浜ノース(神奈川県横浜市) ) 2024.11

     More details

    Type:academic_society_etc