• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

抗体の分子認識を契機とする補体系の活性化を活写する

Publicly Offered Research

Project AreaNovel measurement techniques for visualizing 'live' protein molecules at work
Project/Area Number 17H05893
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionInstitute for Molecular Science

Principal Investigator

谷中 冴子  分子科学研究所, 生命・錯体分子科学研究領域, 助教 (80722777)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords抗体 / 補体 / 高速原子間力顕微鏡 / 核磁気共鳴法 / 高速AFM / NMR / 補体活性化カスケード / 糖脂質
Outline of Annual Research Achievements

抗体が標的細胞の膜表面に集合すると、それを皮切りに補体系が活性化され、最終的に細胞膜を侵襲し破壊する。免疫学の教科書には必ず記載されているこのスキームも、その一連の過程の分子科学的実体は驚くほど明らかとなっていない。その理由として、補体活性化カスケードが膜を舞台として分子が不均一に集合した状態で起こり、かつ各因子が過渡的に複合体を形成する不安定でダイナミックな性質を持つため、一連の過程を観測することが困難であることが挙げられる。本研究では、この過程を明らかにするためには、超分子計測のための試料と手法のそれぞれを工夫することで、抗体による抗原の認識を契機として異物を排除するに至る分子集団の振る舞いを活写することを目指した。
今年度は抗原を含む脂質膜上での免疫グロブリンG(IgG)の6量体リング構造形成のメカニズム解明に取り組んだ。高速原子間力顕微鏡を用い、マウス抗体やキメラ抗体、還元アルキル化抗体など様々な抗体での6量体の形成率を求めた。また、抗体に対して特異的に結合する分子を用いて6量体形成の阻害を試みた。その結果、抗体のヒンジ領域がもたらすIgGの柔軟性が6量体の形成に影響を及ぼすことが明らかとなった。また、抗体のFc領域と相互作用するプロテインAを添加することで6量体の形成が阻害されたことから、リング形成にはFc領域が関わっていることも示された。
一方、NMR計測においてはガングリオシドGM1などの抗原と抗体の相互作用解析を行い、抗原のエピトープを決定した。さらにIgGの柔軟性な構造についての理解を深めるべく、MDシミュレーションに着手した。MDシミュレーションによって得られた構造空間を実験計測によって裏付けるため、量子ビーム溶液散乱を行なった。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (25 results)

All 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (15 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 15 results,  Open Access: 12 results,  Acknowledgement Compliant: 2 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 7 results)

  • [Int'l Joint Research] National Inst. of Standards and Tech.(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Institut Laue-Langevin(フランス)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Structural Biological Approach to Biopharmaceuticals2018

    • Author(s)
      Kato Koichi、Yanaka Saeko、Yagi Hirokazu
    • Journal Title

      YAKUGAKU ZASSHI

      Volume: 138 Issue: 12 Pages: 1495-1502

    • DOI

      10.1248/yakushi.18-00020-3

    • NAID

      130007539077

    • ISSN
      0031-6903, 1347-5231
    • Year and Date
      2018-12-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stable isotope labeling approaches for NMR characterization of glycoproteins using eukaryotic expression systems2018

    • Author(s)
      Yanaka Saeko、Yagi Hirokazu、Yogo Rina、Yagi-Utsumi Maho、Kato Koichi
    • Journal Title

      Journal of Biomolecular NMR

      Volume: - Issue: 3 Pages: 1-10

    • DOI

      10.1007/s10858-018-0169-2

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Backbone 1H, 13C, and 15N assignments of the extracellular region of human Fcγ receptor IIIb2018

    • Author(s)
      Yogo Rina、Yanaka Saeko、Kato Koichi
    • Journal Title

      Biomol. NMR Assign

      Volume: - Issue: 1 Pages: 201-204

    • DOI

      10.1007/s12104-018-9809-4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structure and Dynamics of Immunoglobulin G Glycoproteins2018

    • Author(s)
      Yagi Hirokazu、Yanaka Saeko、Kato Koichi
    • Journal Title

      Advances in experimental medicine and biology

      Volume: 1104 Pages: 219-235

    • DOI

      10.1007/978-981-13-2158-0_11

    • ISBN
      9789811321573, 9789811321580
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Theoretical and Experimental Studies on Inclusion Complexes of Pinostrobin and β-Cyclodextrins2018

    • Author(s)
      Kicuntod Jintawee、Sangpheak Kanyani、Mueller Monika、Wolschann Peter、Viernstein Helmut、Yanaka Saeko、Kato Koichi、Chavasiri Warinthorn、Pongsawasdi Piamsook、Kungwan Nawee、Rungrotmongkol Thanyada
    • Journal Title

      Sci. Pharm.

      Volume: 86 Issue: 1 Pages: 5-5

    • DOI

      10.3390/scipharm86010005

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enabling adoption of 2D-NMR for the higher order structure assessment of monoclonal antibody therapeutics2018

    • Author(s)
      Brinson RG.、Marino JP.、Delaglio F、Arbogast LW.、Evans RM.、Kearsley A、Gingras G、Ghasriani H、Aubin Y、Pierens GK.、Jia X、Mobli M、Grant HG.、Keizer DW.、Schweimer K、Sthle J、Widmalm G、Zartler ER.、Lawrence CW.、Reardon PN.、Cort JR.、Xu P、Ni F、Yanaka S、Kato K、et al.
    • Journal Title

      mAbs

      Volume: 11 Issue: 1 Pages: 94-105

    • DOI

      10.1080/19420862.2018.1544454

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 抗体のNMR研究の趨向と展望2018

    • Author(s)
      加藤晃一, 谷中冴子
    • Journal Title

      SAR News

      Volume: 35 Pages: 1-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] NMR Detection of Semi-Specific Antibody Interactions in Serum Environments2017

    • Author(s)
      Yanaka Saeko、Yamazaki Toshio、Yogo Rina、Noda Masanori、Uchiyama Susumu、Yagi Hirokazu、Kato Koichi
    • Journal Title

      Molecules

      Volume: 22 Issue: 10 Pages: 1619-1619

    • DOI

      10.3390/molecules22101619

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Conformational analysis of a high-mannose-type oligosaccharide displaying glucosyl determinant recognised by molecular chaperones using NMR-validated molecular dynamics simulation2017

    • Author(s)
      T.Suzuki, M.Kajino, S.Yanaka, T.Zhu, H.Yagi, T.Satoh, T.Yamaguchi, and K.Kato
    • Journal Title

      ChemBioChem

      Volume: 18 Issue: 4 Pages: 396-410

    • DOI

      10.1002/cbic.201600595

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Elucidation of potential sites for antibody engineering by fluctuation editing2017

    • Author(s)
      Yanaka Saeko、Moriwaki Yoshitaka、Tsumoto Kouhei、Sugase Kenji
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 9597-9597

    • DOI

      10.1038/s41598-017-10246-9

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Technical Basis for Nuclear Magnetic Resonance Approach for Glycoproteins2017

    • Author(s)
      Kato Koichi、Yanaka Saeko、Yagi Hirokazu
    • Journal Title

      Experimental Approaches of NMR Spectroscopy

      Volume: 1 Pages: 415-438

    • DOI

      10.1007/978-981-10-5966-7_15

    • ISBN
      9789811059650, 9789811059667
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hyper-assembly of Self-assembled Glycoclusters Mediated by Specific Carbohydrate-carbohydrate Interactions2017

    • Author(s)
      Yan, G.; Yamaguchi, T.; Suzuki, T.; Yanaka, S.; Sato, S.;Fujita, M.; Kato, K.
    • Journal Title

      Chem. Asian J.

      Volume: 12 Issue: 9 Pages: 968-972

    • DOI

      10.1002/asia.201700202

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Characterization of conformational deformation-coupled interaction between immunoglobulin G1 Fc glycoprotein and a low-affinity Fcγ receptor by deuteration-assisted small-angle neutron scattering2017

    • Author(s)
      Yogo Rina、Yanaka Saeko、Yagi Hirokazu、Martel Anne、Porcar Linoel、Ueki Yutaro、Inoue Rintaro、Sato Nobuhiro、Sugiyama Masaaki、Kato Koichi
    • Journal Title

      Biochemistry and Biophysics Reports

      Volume: 12 Pages: 1-4

    • DOI

      10.1016/j.bbrep.2017.08.004

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Formation of the chaperonin complex studied by 2D NMR spectroscopy2017

    • Author(s)
      Takenaka Toshio、Nakamura Takashi、Yanaka Saeko、Yagi-Utsumi Maho、Chandak Mahesh S.、Takahashi Kazunobu、Paul Subhankar、Makabe Koki、Arai Munehito、Kato Koichi、Kuwajima Kunihiro
    • Journal Title

      PLOS ONE

      Volume: 12 Issue: 10 Pages: 187022-187022

    • DOI

      10.1371/journal.pone.0187022

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Exploration of the Conformational Dynamics of Major Histocompatibility Complex Molecules2017

    • Author(s)
      Yanaka Saeko、Sugase Kenji
    • Journal Title

      Frontiers in Immunology

      Volume: 8 Pages: 632-632

    • DOI

      10.3389/fimmu.2017.00632

    • NAID

      120006318865

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 血清環境下における抗体の相互作用解析2018

    • Author(s)
      谷中冴子,與語理那,矢木宏和,加藤晃一
    • Organizer
      第18回日本蛋白質科学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 部位選択的重水素化を活用した抗体の血清中での相互作用解析2018

    • Author(s)
      谷中冴子
    • Organizer
      第19回 若手NMR研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Structural characterization of antibody interactions in situ2018

    • Author(s)
      S. Yanaka, H. Watanabe, R. Yogo, H. yagi, T. Uchihashi and K. Kato
    • Organizer
      第56回日本生物物理学会年会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 抗体研究から学ぶこと2018

    • Author(s)
      谷中冴子
    • Organizer
      第91回日本生化学会大会 生化学若い研究者の会創立60周年記念シンポジウム「生命科学の来し方行く末」
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Fcの構造ダイナミクスがFcγ受容体との相互作用に及ぼす影響の解明2018

    • Author(s)
      谷中冴子、與語理那、矢木宏和、伊藤暁、奥村久士、加藤晃一
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] NMRを用いた血清中における抗体の相互作用解析2017

    • Author(s)
      谷中冴子、與語理那、矢木宏和、加藤晃一
    • Organizer
      第17回日本蛋白質科学会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Stable isotope labeling for NMR observation of antibody glycoproteins in serum environments2017

    • Author(s)
      Saeko Yanaka
    • Organizer
      Seminar at Max Planck Institute for Biophysical Chemistry
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Integrative approach for exploration and creation of dynamical ordering of biomolecular systems2017

    • Author(s)
      Saeko Yanaka
    • Organizer
      14th HORIZONs in Molecular Biology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited

URL: 

Published: 2017-04-28   Modified: 2019-12-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi