Tsutsui, Masato

写真a

Affiliation

Faculty of Science and Technology, Department of Biosciences and Informatics (Yagami)

Position

Assistant Professor (Non-tenured)/Research Associate (Non-tenured)/Instructor (Non-tenured)
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Career 【 Display / hide 】

  • 2020.10
    -
    2024.03

    The Noguchi Institute, 糖鎖有機化学研究室, Research Scientist

  • 2024.04
    -
    Present

    Keio University, Faculty of Science and Technology Department of Biosciences and Infomatics, Assistant Professor (Non-tenured)

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Academic Background 【 Display / hide 】

  • 2011.04
    -
    2015.03

    Osaka University, School of Science, Department of Chemistry

  • 2015.04
    -
    2017.03

    Osaka University, Graduate School of Science, Department of Chemistry

  • 2017.04
    -
    2020.09

    Osaka University, Graduate School of Science, Department of Chemistry

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Research Areas 【 Display / hide 】

  • Nanotechnology/Materials / Synthetic organic chemistry (糖鎖合成)

  • Nanotechnology/Materials / Chemical biology

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Research Keywords 【 Display / hide 】

  • Glycosylation

  • Chemical biology

  • Natural organic chemistry

  • Synthetic organic chemistry

  • Glycoscience

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Papers 【 Display / hide 】

  • Validation and Application of an Innovative Protective Group Concept: Enhancing Substrate Reactivity in Glycosylations by Disrupting Intermolecular Interactions

    Kumpei Yano, Takuya Yoshimoto, Masato Tsutsui, Yoshiyuki Manabe, Koichi Fukase

    Synlett (Georg Thieme Verlag KG)  35 2024.02

    Accepted,  ISSN  0936-5214

    　View Summary

    Abstract

    We have established an innovative protective approach that disrupts intermolecular interactions to enhance substrate reactivity. Specifically, diacetylimide protection of acetamide prevents the formation of hydrogen bonds, while the incorporation of tert-butyl groups on the aromatic protecting group disrupts π-stacking interactions, both of which culminate in heightened reactivity in glycosylations. We explored the synergistic implementation of these protective measures and applied them to the synthesis of 6-sulfo sialyl Lewis X.

  • Practical Antibody Recruiting by Metabolic Labeling with Caged Glycans.

    Hersa Milawati, Yoshiyuki Manabe, Takuya Matsumoto, Masato Tsutsui, Yoshihiro Ueda, Ayane Miura, Kazuya Kabayama, Koichi Fukase

    Angewandte Chemie (International ed. in English)    e202303750 2023.04

    Accepted

    　View Summary

    We propose a de novo glycan display that combines metabolic labeling and a glycan-caging strategy as a facile editing method for cell-surface glycans. This method enables the introduction of antigen glycans onto cancer cells to induce immune responses through antibody recruiting. The caging strategy prevents the capture of α-rhamnose (an antigen glycan) by their endogenous antibodies during the introduction of the glycan to the targeted cell surface, and subsequent uncaging successfully induces immune responses. Therefore, this study proposes a practical method for editing the cell-surface glycocalyx under promiscuous conditions, such as those in vivo, which paves the way for the development of glycan function analysis and regulation.

  • Mechanistic Studies for the Rational Design of Multivalent Glycodendrimers

    Yoshiyuki Manabe, Masato Tsutsui, Kohtaro Hirao, Risako Kobayashi, Hiroshi Inaba, Kazunori Matsuura, Daisuke Yoshidome, Kazuya Kabayama, Koichi Fukase

    Chemistry – A European Journal (Wiley)   2022.07

    Accepted,  ISSN  0947-6539

  • Synthesis of ABO blood group antigens and functional glycan display on the cell surface

    Masato Tsutsui, Yoshiyuki Manabe, Kazuya Kabayama, Koichi Fukase

    Arkivoc (ARKAT USA, Inc.)  2021 ( 4 ) 168 - 185 2020.11

    Lead author, Accepted

  • Concise and Reliable Syntheses of Glycodendrimers via Self-Activating Click Chemistry: A Robust Strategy for Mimicking Multivalent Glycan-Pathogen Interactions.

    Kindi Farabi, Yoshiyuki Manabe, Hiroaki Ichikawa, Shuto Miyake, Masato Tsutsui, Kazuya Kabayama, Toshiyuki Yamaji, Katsunori Tanaka, Shang-Cheng Hung, Koichi Fukase

    The Journal of organic chemistry 85 ( 24 ) 16014 - 16023 2020.10

    Accepted

    　View Summary

    Individual interactions between glycans and their receptors are usually weak, although these weak interactions can combine to realize a strong interaction (multivalency). Such multivalency plays a crucial role in the recognition of host cells by pathogens. Glycodendrimers are useful materials for the reconstruction of this multivalent interaction. However, the introduction of a large number of glycans to a dendrimer core is fraught with difficulties. We herein synthesized antipathogenic glycodendrimers using the self-activating click chemistry (SACC) method developed by our group. The excellent reactivity of SACC enabled the efficient preparation of sialyl glycan and Gb3 glycan dendrimers, which exhibited strong avidity toward hemagglutinin on influenza virus and Shiga toxin B subunit produced by Escherichia coli, respectively. We demonstrated the usefulness of SACC-based glycodendrimers as antipathogenic compounds.

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Reviews, Commentaries, etc. 【 Display / hide 】

  • Synthesis of Dual warhead ADC with one-pot glycan remodeling reaction

    後藤浩太朗, 月村亘, 弘瀬友理子, 水野真盛, 森研人, 黒河内政樹, 関川寧々, 筒井正斗, 高田美生, 森昌子

    日本抗体学会学術大会プログラム・抄録集(Web) 3rd 2024.12

  • Site specific dual click-functionalization of antibody for dual warhead ADCs

    後藤浩太朗, 関川寧々, 月村亘, 黒河内政樹, 弘瀬友理子, 筒井正斗, 森研人, 高田美生, 水野真盛, 森昌子

    日本糖質学会年会要旨集 43rd 2024.09

  • Design and synthesis of β-lactose derivatives targeting Gal-4 inhibition and their binding affinity evaluation

    筒井正斗, 上田日向, 山田一作, 石川岳志, 井手尾浩子, 高田美生, 水野真盛

    日本糖質学会年会要旨集 43rd 2024.09

  • One-pot synthesis of antibody-drug conjugate (ADC) precursor with Azido-PEGylated oxazoline

    後藤浩太朗, 森昌子, 月村亘, 大隅賢二, 弘瀬友理子, 筒井正斗, 黒河内政樹, 石田秀樹, 松崎祐二, 高田美生, 水野真盛

    日本薬学会年会要旨集(Web) 142nd 2022

    ISSN  0918-9823

  • Synthesis of ADC precursor with functional group for SPIEDAC reaction

    筒井正斗, 後藤浩太朗, 二木祐樹, 弘瀬友理子, 森昌子, 八須和子, 水野真盛

    日本糖質学会年会要旨集 41st 2022

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Presentations 【 Display / hide 】

  • Synthesis and biological characterization of site-specific ADC prepared by PEGylated sugar oxazolines

    Masato Tsutsui

    第2回東日本糖質若手シンポジウム, 

    2023.11
    , 

    Oral presentation (invited, special)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • ヒトの自然免疫を活性化する糖鎖模倣ペプチドの探索とがん免疫療法への展開

    2025.04
    -
    2028.03

    日本学術振興会, 科学研究費助成事業, 若手研究, No Setting

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Intellectual Property Rights, etc. 【 Display / hide 】

  • PYRAZOLONE COMPOUND AND PYRAZOLONE AGENT

    Date applied： 特願PCT/JP2023/027102  2023.07 

    Date announced： WO/2024/024760  2024.02 

    Patent

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Awards 【 Display / hide 】

  • JSCR43 Best poster award

    ○Masato Tsutsui, Hinata Ueda, Issaku Yamada, Takeshi Ishikawa, Hiroko Ideo, Yoshio Takada, Mamoru Mizuno, 2024.09, The Japanese Society of Carbohydrate Research, Design and synthesis of β-lactose derivatives targeting Gal-4 inhibition and their binding affinity evaluation

  • 優秀講演賞

    2019.05, 関西グライコサイエンスフォーラム, 効率的糖鎖合成を可能とするジアセチルストラテジーの開発と血液型糖鎖を用いたがん免疫療法の検討

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Courses Taught 【 Display / hide 】

  • TOPICS IN BIOSCIENCES AND INFORMATICS 2

    2025

  • LABORATORY IN SCIENCE

    2025

  • BASIC LABORATORY COURSE IN BIOSCIENCES

    2025

  • ADVANCED LABORATORY COURSE IN BIOSCIENCES AND INFORMATICS D

    2025

  • ADVANCED LABORATORY COURSE IN BIOSCIENCES AND INFORMATICS C

    2025

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Memberships in Academic Societies 【 Display / hide 】

  • 日本糖質学会, 

    2019.07
    -
    Present

  • 日本化学会, 

    2016.12
    -
    Present
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Committee Experiences 【 Display / hide 】

  • 2024.02
    -
    Present

    グライコトピックレポーター, Trends in Glycoscience and Glycotechnology (TIGG)

  • 2023.09
    -
    Present

    世話人, グライコサイエンス若手の会

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