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自然免疫-獲得免疫を制御する細菌由来化合物の化学合成と機能解析

Research Project

Project/Area Number 22310136
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Living organism molecular science
Research InstitutionOsaka University

Principal Investigator

藤本 ゆかり  Osaka University, 理学(系)研究科(研究院), 准教授 (00362616)

Project Period (FY) 2010
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2011: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2010: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywords複合糖質 / 自然免疫 / ペプチドグリカン / 受容体 / 化学合成
Research Abstract

本研究においては、生体防御の最前線を担う自然免疫を活性化する鍵構造として、微生物由来免疫増強/抑制化合物の化学合成法の確立、純粋な合成化合物を用いた生物活性の検証と詳細な解析、さらにはその生体内での機能解明を目指した研究を行った。すなわち、細胞壁成分であるペプチドグリカン(PGN)・フラグメントについて、環境中、特に本年度はBacillus subtilis natto(納豆菌)について、Nod1天然リガンドの解析を行い構造を決定すると共にEscherichia.coli(大腸菌)には見出されなかったPGNフラグメント構造の合成を行った。一方、フラグメント構造の効率的合成法については、八糖構造合成法を確立するとともにジペプチドあるいはヘプタペプチド構造がリンクした構造の化合物合成に成功した。標識体合成法の検討を行い基盤となる技術を得た。また、強い免疫刺激活性、あるいは特徴的なナチュラル・キラー(NK)細胞刺激活性や細胞傷害性T細胞活性化作用を持つ微生物由来糖脂質についても、新規化学合成法の確立、生物活性の解析を目指した研究を行ったが、その一つとして、アテローム性動脈硬化との関連が報告されており我々のこれまでの研究でも特異な免疫刺激活性を持つ事を示している寄生菌型リポ多糖部分構造について、効率的合成法を確立するとともに、慢性炎症に関連する活性として、ヒト末梢血を用いた活性試験における強いインターロイキン18(IL-18)の誘導活性を見出した。また、免疫刺激活性という視点からはこれまであまり研究されてこなかったE.histolytica trophozoitesのイノシトールリン脂質部位について、我々の見出した新規リン酸化反応の展開を行い、骨格部分の合成に成功した。

Report

(1 results)
  • 2010 Annual Research Report
  • Research Products

    (39 results)

All 2011 2010

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (34 results)

  • [Journal Article] Structures, Synthesis, and Human Nod1 Stimulation of Immunostimulatory Bacterial Peptidoglycan Fragments in the Environment2011

    • Author(s)
      Fujimoto, Y., et al.
    • Journal Title

      J.Nat.Prod.

      Volume: (印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nod1 ligands induce site-specific vascular inflammation2011

    • Author(s)
      Nishio, H., Fujimoto, Y., et al
    • Journal Title

      Arterioscler.Thromb.Vasc.Biol.

      Volume: (印刷中)

    • NAID

      120005107977

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Self and non-self recognition with bacterial and animal glycans, surveys by synthetic chemistry.2010

    • Author(s)
      Fujimoto, Y., et al.
    • Journal Title

      Methods in Enzymology

      Volume: 478 Pages: 323-342

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of natural human nucleotide-binding oligomerization domain protein 1 (NOD1) ligands from bacterial culture supernatant for elucidation of immune modulators in the environment.2010

    • Author(s)
      Pradipta, A.R., Fujimoto, Y., et al
    • Journal Title

      J.Biol.Chem.

      Volume: 285 Pages: 23607-23613

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The peptide sequence of diacyl lipopeptides determines dendritic cell TLR2-mediated NK activation.2010

    • Author(s)
      Azuma, M., Fujimoto, Y., et al
    • Journal Title

      PLos One

      Volume: 5

    • NAID

      120002414850

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 自然免疫活性化物質と発酵食品2011

    • Author(s)
      藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 免疫刺激作用を持つイノシトールリン脂質合成を指向したmyo-イノシトールの選択的リン酸化反応の研究2011

    • Author(s)
      佐藤昌紀、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 寄生性細菌由来リポ多糖部分構造の合成および免疫活性化機構解明と制御2011

    • Author(s)
      下山敦史、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 細菌細胞壁ペプチドグリカン受容体Nod1の天然型リガンドの同定2011

    • Author(s)
      PRADIPTA A.R.、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 認識タンパク質探索・解析を目指したペプチドグリカン・フラグメントライブラリ構築2011

    • Author(s)
      王寧、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] シクロプロパン環を有する細菌由来脂肪酸の合成研究2011

    • Author(s)
      浅田早織、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] ペプチドグリカン受容体Nod1リガンド標識体の合成研究2011

    • Author(s)
      伊東陽子、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Entamoeba hlstolytica由来NKT細胞刺激作用を有するイノシトールリン脂質の合成研究2011

    • Author(s)
      梅垣大地、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Porphyromonas gingivalisリピドAの合成及び免疫調節活性2011

    • Author(s)
      佐伯昭典、藤本ゆかり
    • Organizer
      日本化学会第91春季年会
    • Place of Presentation
      神奈川大学(神奈川県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Comprehensive Chemical Synthesis of Peptidoglycan Fragments for Exploring Recognition Proteins2010

    • Author(s)
      N.Wang, Y.Fujimoto
    • Organizer
      International Symposium on Environmentally Benigh Synthesis
    • Place of Presentation
      大阪大学(大阪府)
    • Year and Date
      2010-10-22
    • Related Report
      2010 Annual Research Report
  • [Presentation] Molecular Basis of Endotoxic Activities Based on Synthesized Various Lipid A/LPS Partial Structures.2010

    • Author(s)
      Y.Fujimoto
    • Organizer
      2010 Joint Meeting between the Society for Leukocyte Biology & the International Endotoxin and Innate Immunity Society.
    • Place of Presentation
      Vancouver, Canada(招待講演)
    • Year and Date
      2010-10-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Innate Immunostimulatory Lipopeptides of Staphylococcus aureus as TLR2 Ligands ; Prediction with mRNA Expression, Chemical Synthesis, and TLR2-mediated NK Activation.2010

    • Author(s)
      Y.Fujimoto
    • Organizer
      2010 Joint Meeting between the Society for Leukocyte Biology & the International Endotoxin and Innate Immunity Society.
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      2010-10-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Peptidoglycan fragments released to the environment ; Analysis, chemical synthesis and Nod 1 stimulation.2010

    • Author(s)
      Y.Fujimoto
    • Organizer
      2010 Joint Meeting between the Society for Leukocyte Biology & the International Endotoxin and Innate Immunity Society.
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      2010-10-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Entamoeba histolytica由来NKT細胞刺激作用を有するイノシトールリン脂質の合成研究2010

    • Author(s)
      佐藤昌紀、藤本ゆかり
    • Organizer
      第37回有機反応懇談会
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2010-08-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 自然免疫活性化機構解明を目指したポルフィロモナス・ジンジバリス菌リピドAの網羅的合成2010

    • Author(s)
      佐伯昭典、藤本ゆかり
    • Organizer
      第37回有機反応懇談会
    • Place of Presentation
      京都大学(京都府)
    • Year and Date
      2010-08-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of GPI structure of EhPIa and EhPIb from Entamoeba histolytica, which activate NKT cell2010

    • Author(s)
      M.Sato, Y.Fujimoto
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      千里ライフサイエンスセンター(大阪府)
    • Year and Date
      2010-04-12
    • Related Report
      2010 Annual Research Report
  • [Presentation] Parasitic Bacterial Lipopolysaccharide Partial Structures ; Synthesis and Immunoregulatory Functions2010

    • Author(s)
      A.Shimoyama, Y.Fujimoto
    • Organizer
      The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthetic study of unique phosphatidylinositol structures from Entamoeba histolytica for investigation of NKT cell activation2010

    • Author(s)
      M.Sato, Y.Fujimoto
    • Organizer
      The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Related Report
      2010 Annual Research Report
  • [Presentation] Natural human Nod1 ligand released in bacterial supernatants ; Structural elucidation and chemical synthesis of peptidoglycan fragments2010

    • Author(s)
      A.R.Pradipta, Y.Fujimoto
    • Organizer
      The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Related Report
      2010 Annual Research Report
  • [Presentation] Peptidoglycan fragment library for exploring recognition proteins2010

    • Author(s)
      N.Wang, Y.Fujimoto
    • Organizer
      The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of fluorescence-labeled Nod1/Nod2 ligands for elucidation of immunostimulating mechanism of bacterial cell wall peptidoglycan2010

    • Author(s)
      K.Fujiki, Y.Fujimoto
    • Organizer
      The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
    • Place of Presentation
      Honolulu, USA
    • Related Report
      2010 Annual Research Report
  • [Presentation] Peptidoglycan Fragments Released to the Environment ; Analysis, Chemical Synthesis and Nod1 Stimulation2010

    • Author(s)
      Y.Fujimoto
    • Organizer
      The 5th International Peptide Symposium
    • Place of Presentation
      国立京都国際会館(京都府)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Innate Immunostimulatory Lipopeptides of Staphylococcus aureus as TLR2 Ligands ; Prediction with mRNA Expression, Synthesis, and NK cell Activation2010

    • Author(s)
      K.Fukase, Y.Fujimoto
    • Organizer
      The 5th International Peptide Symposium
    • Place of Presentation
      国立京都国際会館(京都府)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Chemical conjugation of immunoadjuvant complex aimed at immunological control2010

    • Author(s)
      Y.Kajiki, Y.Fujimoto
    • Organizer
      The Sixth International Symposium on Integrated Synthesis (ISIS-6)
    • Place of Presentation
      舞子ヴィラ(兵庫県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 細菌細胞壁ペプチドグリカンによる免疫活性化機構解明を目指したNod1/Nod2リガンド標識体の合成2010

    • Author(s)
      藤木勝将、藤本ゆかり
    • Organizer
      第4回バイオ関連化学シンポジウム
    • Place of Presentation
      大阪大学(大阪府)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 寄生性細菌リポ多糖部分構造の効率的合成および免疫活性化機構解明2010

    • Author(s)
      下山敦史、藤本ゆかり
    • Organizer
      第27回有機合成化学セミナー
    • Place of Presentation
      舞子ヴィラ(兵庫県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of Parasitic Bacterial Lipopolysaccharide Partial Structures for Elucidation of the Immunoregulating Function2010

    • Author(s)
      A.Shimoyama, Y.Fujimoto
    • Organizer
      The 25th International Carbohydrate Symposium (ICS2010)
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Peptidoglycan Fragments Library for Exploring Recognition Proteins2010

    • Author(s)
      N.Wang, Y.Fujimoto
    • Organizer
      The 25th International Carbohydrate Symposium (ICS2010)
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Natural human Nod1 ligand released from bacterial supernatants2010

    • Author(s)
      A.R.Pradipta, Y.Fujimoto
    • Organizer
      The 25th International Carbohydrate Symposium (ICS2010)
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of fluorescence-labeled Nod1/Nod2 ligands for elucidation of immunostimulating mechanism of bacterial cell wall peptidoglycan2010

    • Author(s)
      K.Fujiki, Y.Fujimoto
    • Organizer
      The 25th International Carbohydrate Symposium (ICS2010)
    • Place of Presentation
      幕張メッセ(千葉県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] 免疫制御を目指したアジュバント複合体の合成研究2010

    • Author(s)
      加治木泰範、藤本ゆかり
    • Organizer
      第43回若手ペプチド夏の勉強会
    • Place of Presentation
      ウェルネスパーク五色(兵庫)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Peptidoglycan Fragments Library for Exploring Recognition Proteins/Domains2010

    • Author(s)
      N.Wang、藤本ゆかり
    • Organizer
      第45回天然物化学談話会
    • Place of Presentation
      ホテル明山荘(愛知県)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of Peptidoglycan Fragment Library for Investigating Their Biofunctions2010

    • Author(s)
      N.Wang, Y.Fujimoto
    • Organizer
      The 21st Symposium on Medicinal and Fine Chemistry (FJS-2010)
    • Place of Presentation
      京都ガーデンパレス(京都府)
    • Related Report
      2010 Annual Research Report
  • [Presentation] Synthesis of Parasitic Bacterial Lipopolysaccharide Partial Structures for Elucidation of the Immunoregulating Function2010

    • Author(s)
      A.Shimoyama, Y.Fujimoto
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      千里ライフサイエンスセンター(大阪府)
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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