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2016 Fiscal Year Annual Research Report

Study on interactions between nanovesicles and solid surfaces toward new exosome medicine

Research Project

Project/Area Number 15K13361
Research InstitutionYokohama National University

Principal Investigator

荻野 俊郎  横浜国立大学, 工学(系)研究科(研究院), 教授 (70361871)

Project Period (FY) 2015-04-01 – 2017-03-31
Keywordsエクソソーム / ガン診断 / 固体表面 / 脂質二分子膜 / 吸着 / 機械学習 / 原子間力顕微鏡
Outline of Annual Research Achievements

エクソソームとは細胞から放出されるナノスケールのベシクル(小胞体)で、直径は30~150nm程度、ガン細胞を含むあらゆる細胞から放出され、またあらゆる体液に含まれている。エクソソームはホスト細胞の性質を引き継いでいるため、エクソソーム解析はガンの早期診断に有力であると期待されている。本研究では、エクソソームの特徴抽出に、原子間力顕微鏡(atomic force microscopy, AFM)を用いて吸着様態と吸着に伴う変形を定量化する新しい手法を提案した。実験では、培養ガン細胞から抽出した3種類のエクソソームを用い、まず固体基板上の吸着様態をAFMにより観察した。その結果、変形のみを伴う単純な吸着、内容物が流失して潰れてはいるが破裂展開していない二層の脂質二分子膜形成、破裂展開した結果の一層の脂質二分子膜形成、および周辺のみ潰れて二層の脂質二分子膜を形成し中央に集められた内容物が半球をつくる目玉焼き形状の形成、以上の4種類の吸着が観察された。吸着に伴う変形とホスト細胞の特徴を高い確率で関連付ける方法として機械学習を採用した、AFM観察で利用できる形状抽出ソフトウェアから14パラメータを選び、AFM画像から得られる個々の粒子(エクソソーム)のデータを14次元空間にプロットすることにより判別器を作成した。その後、判別器作成に用いなかったAFM画像のデータをプロットしたところ、60~85%の確率で対応するホスト細胞の領域にプロット(正答)された。特に、基板として二酸化チタン単結晶を用いると、80~85%の正答率が得られた。従来、エクソソーム観察に用いられていた透過電子顕微鏡では、形状とサイズ以外の情報が乏しい。固体表面との相互作用に注目した本手法は、様々な基板を用いて吸着様態を比較することが可能であり、新たなガン診断法として期待できる。

  • Research Products

    (28 results)

All 2017 2016

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 5 results) Presentation (23 results) (of which Int'l Joint Research: 15 results,  Invited: 5 results)

  • [Journal Article] Fabrication of Si-nanowires controlled by spontaneously formed nanoholes on annealed Au thin films2016

    • Author(s)
      Daichi Yamaura, Toshio Ogino
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 53 Pages: 28-35

    • DOI

      10.1016/j.mssp.2016.05.018

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Observation of adsorption behavior of biomolecules on ferroelectric crystal surfaces with polarization domain patterns2016

    • Author(s)
      Tomoaki Nakayama, Akiko Isobe, Toshio Ogino
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 55 Pages: (08NB17) 1 - 5

    • DOI

      10.7567/JJAP.55.08NB17

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Chemical wet etching of germanium assisted with catalytic-metal-particles and electroless-metal-deposition2016

    • Author(s)
      Kazuki Ito, Daichi Yamaura, Toshio Ogino
    • Journal Title

      Electrochimica Acta

      Volume: 214 Pages: 354-361

    • DOI

      10.1016/j.electacta.2016.08.016

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Highly conductive, monolayer and large-area reduced graphene oxide films fabricated by electrical connection at the two-dimensional boundaries between the tiled graphene oxide flakes2016

    • Author(s)
      Muhammad Zikri Bin Dzukarnain, Toshiyuki Takami, Hibiki Imai, Toshio Ogino
    • Journal Title

      Thin Solid Films

      Volume: 615 Pages: 247-255

    • DOI

      10.1016/j.tsf.2016.07.029

    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Characterization of local hydrophobicity on sapphire surfaces in aqueous environment by colloidal probe atomic force microscopy2016

    • Author(s)
      T. Wada, T. Isono, K. Yamazaki, T. Ogino
    • Journal Title

      Applied Surface Science

      Volume: 396 Pages: 1206-1211

    • DOI

      10.1016/j.apsusc.2016.11.112

    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Applications of biointerface control to bioelectronics and nanomedicine2017

    • Author(s)
      Toshio Ogino, Kazuki Ito, Naotoshi Sakaguchi, Tamiko Minamisawa, Sachiko Matsumura, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata
    • Organizer
      The Int. Surfaces, Coatings and Interfaces Conference
    • Place of Presentation
      Incheon, Korea
    • Year and Date
      2017-03-29 – 2017-03-31
    • Int'l Joint Research / Invited
  • [Presentation] Control of biointerfaces and its applications to exosome characterization2017

    • Author(s)
      Toshio Ogino, Kazuki Ito, Yuta Ogawa, Masaki Nakamura, Tamiko Minamisawa, Sachiko Matsumura, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata
    • Organizer
      Japan-Taiwan Nanomedicine
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2017-03-16 – 2017-03-17
    • Int'l Joint Research / Invited
  • [Presentation] Fabrication of Au-nanoparticle-embedded lipid bilayer membranes supported on solid substrates2017

    • Author(s)
      Naotoshi Sakaguchi, Ryosuke Kimura, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      応用物理学会春季学術講演会
    • Place of Presentation
      横浜
    • Year and Date
      2017-03-14 – 2017-03-17
  • [Presentation] A novel structure for membrane devices consisting of atomic and molecular sheets and two-dimensional nanoparticle-arrays2017

    • Author(s)
      Toshio Ogino, Naotoshi Sakaguchi, Ryosuke Kimura, Akiko Isobe, Daisuke Mashiyama, Yasuo Kimura, Ayumi Hirano-Iwata
    • Organizer
      8th Int. Worlshop on Nanostructures & Nanoelectronics
    • Place of Presentation
      仙台
    • Year and Date
      2017-03-06 – 2017-03-07
    • Int'l Joint Research
  • [Presentation] Fabrication of Si-nanowire/carbon-nanotube composites for lithium Ion battery anodes2017

    • Author(s)
      N. Kameda, K. Wakabayashi, T. Ogino
    • Organizer
      Symp. on Surf. Sci. & Nanotechnol. - 25th Anniversary of SSSJ Kansai
    • Place of Presentation
      京都
    • Year and Date
      2017-01-24 – 2017-01-25
    • Int'l Joint Research
  • [Presentation] Novel method for host cell identification of exosomes using their immobilization and drying processes2016

    • Author(s)
      Masaki Nakamura, Kazuki Ito, Yuta Ogawa, Sachiko Matsumura, Tamiko Minamisawa, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      日本MRS年次大会 国際シンポジウム Nano-biotechnology on Interfaces
    • Place of Presentation
      横浜
    • Year and Date
      2016-12-19 – 2016-12-22
    • Int'l Joint Research
  • [Presentation] Fabrication of nanopores on suspended graphene films for nanobiodevices2016

    • Author(s)
      Toshio Ogino, Naotoshi Sakaguchi, Akiko Isobe, Ryosuke Kimura, Yosuke Nakamura, Yasuo Kimura, Ayumi Hirano-Iwata
    • Organizer
      EMN Hong Kong Meeting
    • Place of Presentation
      Hong Kong
    • Year and Date
      2016-12-04 – 2016-12-08
    • Int'l Joint Research / Invited
  • [Presentation] 脂質二分子膜への膜融合による金属ナノ粒子の導入2016

    • Author(s)
      坂口直駿、木村僚佑、木村康男、平野愛弓、荻野俊郎
    • Organizer
      日本表面科学会, 2016年真空・表面科学合同講演会
    • Place of Presentation
      名古屋
    • Year and Date
      2016-11-29 – 2016-12-01
  • [Presentation] 放出元細胞の同定に向けたエクソソームの基板吸着様態を用いる特徴抽出2016

    • Author(s)
      伊藤和希, 小川裕太, 横田圭司, 松村幸子, 南澤宝美后, 菅加奈子, 芝清隆, 木村康男, 平野愛弓, 荻野俊郎
    • Organizer
      日本表面科学会, 2016年真空・表面科学合同講演会
    • Place of Presentation
      名古屋
    • Year and Date
      2016-11-29 – 2016-12-01
  • [Presentation] リチウムイオン電池負極に向けたSiナノワイヤ/カーボンナノチューブ複合材料作製法の検討2016

    • Author(s)
      亀田直哉, 若林慶, 荻野俊郎
    • Organizer
      日本表面科学会, 2016年真空・表面科学合同講演会
    • Place of Presentation
      名古屋
    • Year and Date
      2016-11-29 – 2016-12-01
  • [Presentation] Observation of lipid membranes formed from giant unilamellar vesicles on graphene-flake-attached SiO2/Si surfaces2016

    • Author(s)
      Akiko Isobe, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      Asian Conference on Nanoscience & Nanotechnology
    • Place of Presentation
      札幌
    • Year and Date
      2016-10-10 – 2016-10-13
    • Int'l Joint Research
  • [Presentation] Fabrication and characterization of pore-spanning lipid bilayers by the electrophoresis2016

    • Author(s)
      Ryosuke Kimura, Tomoaki Nakayama, Naotoshi Sakaguchi, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      Asian Conference on Nanoscience & Nanotechnology
    • Place of Presentation
      札幌
    • Year and Date
      2016-10-10 – 2016-10-13
    • Int'l Joint Research
  • [Presentation] Au nanoparticles incorporation into supported lipid bilayer membranes and its characterization2016

    • Author(s)
      Naotoshi Sakaguchi, Ryosuke Kimura, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      Asian Conference on Nanoscience & Nanotechnology
    • Place of Presentation
      札幌
    • Year and Date
      2016-10-10 – 2016-10-13
    • Int'l Joint Research
  • [Presentation] Extraction of morphological features of exosomes adsorbed to solid substrates toward host cell identification2016

    • Author(s)
      Kazuki Ito, Yuta Ogawa, Keiji Yokota, Sachiko Matsumura, Tamiko Minamisawa Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      Asian Conference on Nanoscience & Nanotechnology
    • Place of Presentation
      札幌
    • Year and Date
      2016-10-10 – 2016-10-13
    • Int'l Joint Research
  • [Presentation] Characterization of exosomes using atomic force microscopy and scanning electron microscopy2016

    • Author(s)
      Toshio Ogino, Kazuki Ito, Keiji Yokota, Yuta Ogawa, Tamiko Minamisawa, Sachiko Matsumura, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata
    • Organizer
      13th Int. Conf. on Atomically Controlled Surfaces, Interfaces and Nanostructures
    • Place of Presentation
      Frascati, Italy
    • Year and Date
      2016-10-09 – 2016-10-15
    • Int'l Joint Research / Invited
  • [Presentation] エクソソーム-基板間の相互作用を利用した特徴抽出2016

    • Author(s)
      小川 裕太, 伊藤 和希, 横田 圭司, 松村 幸子, 南澤 宝美后, 菅 加奈子, 芝 清隆, 木村 康男, 平野 愛弓, 荻野 俊郎
    • Organizer
      応用物理学会秋季学術講演会
    • Place of Presentation
      新潟
    • Year and Date
      2016-09-13 – 2016-09-16
  • [Presentation] 巨大脂質膜ベシクルを用いたグラフェンと脂質膜の複合構造形成2016

    • Author(s)
      磯部亜紀子、木村康男、平野愛弓, 荻野俊郎
    • Organizer
      応用物理学会秋季学術講演会
    • Place of Presentation
      新潟
    • Year and Date
      2016-09-13 – 2016-09-16
  • [Presentation] A novel method for fabrication of Si/C hollow core-shell nanocomposites2016

    • Author(s)
      Kei Wakabayashi, Daichi Yamaura, Kazuki Ito, Naoya Kameda, Toshio Ogino
    • Organizer
      20th Int. Vacuum Congress
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2016-08-21 – 2016-08-26
    • Int'l Joint Research
  • [Presentation] Extraction of morphological features of exosomes adsorbed to solid substrates toward host cell identification2016

    • Author(s)
      Kazuki Ito, Yuta Ogawa, Keiji Yokota, Sachiko Matsumura, Tamiko Minamisawa, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      20th Int. Vacuum Congress
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2016-08-21 – 2016-08-26
    • Int'l Joint Research
  • [Presentation] Au nanoparticle incorporation into supported lipid bilayer membranes and its characterization2016

    • Author(s)
      Naotoshi Sakaguchi, Tomoaki Nakayama, Ryosuke Kimura, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      20th Int. Vacuum Congress
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2016-08-21 – 2016-08-26
    • Int'l Joint Research
  • [Presentation] Characterization of exosomes by atomic force microscopy and scanning electron microscopy2016

    • Author(s)
      Kazuki Ito, Keiji Yokota, Yuta Ogawa, Tamiko Minamisawa, Sachiko Matsumura, Kanako Suga, Kiyotaka Shiba, Yasuo Kimura, Ayumi Hirano-Iwata, Toshio Ogino
    • Organizer
      The forth Japan-China Symposium on Nanomedicine
    • Place of Presentation
      北九州
    • Year and Date
      2016-05-12 – 2016-05-13
    • Int'l Joint Research / Invited
  • [Presentation] 固体基板への固定による生体物質の評価2016

    • Author(s)
      荻野俊郎, 伊藤和希, 横田圭司, 小川裕太, 松村幸子, 南澤宝美后, 菅加奈子, 芝清隆, 木村康男, 平野愛弓
    • Organizer
      電子情報通信学会・電子デバイス研究会
    • Place of Presentation
      米沢
    • Year and Date
      2016-04-21 – 2016-04-22
  • [Presentation] ホスト細胞同定に向けたエクソソーム基板吸着様態の特徴抽出2016

    • Author(s)
      伊藤和希, 小川裕太, 横田圭司, 松村幸子, 南澤宝美后, 菅加奈子, 芝清隆, 木村康男, 平野愛弓, 荻野俊郎
    • Organizer
      日本表面科学会第1回関東支部講演大会
    • Place of Presentation
      東京
    • Year and Date
      2016-04-09 – 2016-04-09

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Published: 2018-01-16  

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