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ミトコンドリア機能解析のための1細胞呼吸計測

Research Project

Project/Area Number 18038003
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTohoku University

Principal Investigator

阿部 宏之  東北大学, 先進医工学研究機構, 助教授 (10375199)

Co-Investigator(Kenkyū-buntansha) 横尾 正樹  東北大学, 先進医工学研究機, 助手 (10396541)
Project Period (FY) 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥4,300,000 (Direct Cost: ¥4,300,000)
Fiscal Year 2006: ¥4,300,000 (Direct Cost: ¥4,300,000)
Keywords電気化学顕微鏡 / 細胞呼吸 / 単一細胞計測 / ミトコンドリア / 細胞機能解析 / 電気化学イメージング / 無侵襲計測 / 生殖細胞
Research Abstract

本研究では、電気化学的計測技術を基盤とする非侵襲的単一細胞呼吸計測法を開発し、1細胞レベルでのミトコンドリア機能解析システムの構築を目的とした。走査型電気化学顕微鏡を用いたウシ胚呼吸量計測の計測感度および安定性向上を目的に、測定要素技術および周辺技術の開発を行った。その結果、以下の研究成果が得られた。
1.マイクロ電極作製法の検討:白金電極のエッチング法、ガラスピペットを用いた電極封止法を改良することで、マイクロ電極の計測感度を向上させることに成功した。
2.計測液の開発:受精卵培養液をベースに測定液を調整した。マイクロ電極によって検出される還元電流値に大きな影響は認められず、安定した呼吸量計測が可能であった。
3.呼吸測定の有効性の検証:マウスおよびウシ胚の呼吸量を測定した。両種とも胚発生過程において桑実胚から胚盤胞期にかけて呼吸量の増加が測定された。微細構造解析の結果、ミトコンドリアの形態的な発達と呼吸活性能の増加は一致したことから、電気化学的呼吸測定のミトコンドリア機能解析における有効性が示された。
4.単一細胞の呼吸計測:単一細胞のモデル系としてウシ卵子の呼吸量測定を行った結果、再現性良く卵子の呼吸量が測定できた。
以上の結果から、哺乳動物卵子をモデル系とした単一細胞呼吸測定システムの構築に成功し、1細胞レベルでのミトコンドリア機能解析システムの基盤ができた。

Report

(1 results)
  • 2006 Annual Research Report
  • Research Products

    (23 results)

All 2007 2006

All Journal Article (23 results)

  • [Journal Article] Respiratory activity and ultrastructural features of bovine somatic nuclear transfer embryos2007

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Reproduction, Fertility and Development 19・1

      Pages: 129-130

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The efficient maintenance of respiratory activity of oocytes relates to the high competence of oocyte maturation in pigs2007

    • Author(s)
      Masaki Yokoo
    • Journal Title

      Reproduction, Fertility and Development 19・1

      Pages: 295-295

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Regional and cyclic variations in the ultrastructural features of secretory cells in the oviductal epithelium of the Chinese Meishan pig2007

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Reproduction in Domestic Animals (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Morphometric and ultrastructural changes in ciliated cells of the oviductal epithelium in prolific Chinese Meishan and Large White pigs during the estrous cycle2007

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Reproduction in Domestic Animals (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Role of hyaluronan receptor CD44 during in vitro maturation in pigs2007

    • Author(s)
      Masaki Yokoo
    • Journal Title

      Journal of Reproduction and Development (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Excess tyrosine restores affected morphology and maturation of melanosomes by the murine slaty mutation2007

    • Author(s)
      Tomohisa Hirobe
    • Journal Title

      Zoological Science (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Excess tyrosine rescues the reduced activity of proliferation and differentiation of cultured recessive yellow melanocytes derived from neonatal mouse epidermis2007

    • Author(s)
      Tomohisa Hirobe
    • Journal Title

      European Journal of Cell Biology (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Changes of melanosome morphology associated with the differentiation of epidermal melanocytes in slaty mice2007

    • Author(s)
      Tomohisa Hirobe
    • Journal Title

      Anatomical Record (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A microfluidic chip integrated with amperometric detector array for in situ estimating oxygen consumption characteristics of single bovine embryo2007

    • Author(s)
      C.-C.Wu
    • Journal Title

      Sensors and Actuators B (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 電気化学的イメージング法を応用した単一ヒト胚の呼吸能解析2007

    • Author(s)
      阿部宏之
    • Journal Title

      産婦人科の実際 (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effects of hyaluronan on oxygen consumption and ATP content in blastocysts produced in vitro2007

    • Author(s)
      Koji Yoshioka
    • Journal Title

      Reproduction, Fertility and Development 19・1

      Pages: 215-215

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Relationship between the respiratory activity and the pregnancy rate of bisected bovine2007

    • Author(s)
      Satoru Moriyasu
    • Journal Title

      Reproduction, Fertility and Development 19・1

      Pages: 219-219

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Evaluation of mitochondrial function in single cloned miniature pig embryos by measuring oxygen consumption2007

    • Author(s)
      Satoshi Sugimura
    • Journal Title

      Reproduction, Fertility and Development 19・1

      Pages: 161-161

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Evaluating the quality of individual embryos with a non-invasive and highly sensitive measurement of oxygen consumption by scanning electrochemical microscopy2006

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Journal of Reproduction and Development 55・suppl

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Oxygen consumption of cell suspension in a poly(dimethlsiloxane) (PDMS) microchannel estimated by scanning electrochemical microscopy2006

    • Author(s)
      Takeshi Saito
    • Journal Title

      Analyst 131

      Pages: 1006-1011

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 呼吸量測定によるウシ体外培養胚の品質評価と半自動計測装置の開発2006

    • Author(s)
      青柳重夫
    • Journal Title

      分析化学 55・11

      Pages: 847-854

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The murine slaty mutation affects the morphology and maturation of melanosomes in the mouse melanocytes2006

    • Author(s)
      Tomohisa Hirobe
    • Journal Title

      Pigment Cell Research 19

      Pages: 454-459

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Oxygen permeability of surface-modified poly (dimethylsiloxane) characterized by scanning electrochemical microscopy2006

    • Author(s)
      Hitoshi Shiku
    • Journal Title

      Chemical Letters 35

      Pages: 234-235

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Estimation of respiratory activity of mouse embryos by scanning electrochemical microscopy2006

    • Author(s)
      Takahiro Sasaki
    • Journal Title

      Zoological Science 23・12

      Pages: 1185-1185

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The slaty mutation affects the morphology and maturation of melanosomes in the murine epidermal melanocytes2006

    • Author(s)
      Tomohisa Hirobe
    • Journal Title

      Pigment Cell Research 19

      Pages: 651-652

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Analysis of respiratory activity of single bovine oocytes by scanning electrochemical microscopy2006

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Proceeding of the 4^<th> International Forum on Post-genome Technologies

      Pages: 19-22

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Microsystem surveying three dimensional (3D) culture and embryo development2006

    • Author(s)
      Hitoshi Shiku
    • Journal Title

      Proceeding of the 4^<th> International Forum on Post-genome Technologies

      Pages: 221-223

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A quality evaluation system for embryos and oocytes using scanning electrochemical microscopy2006

    • Author(s)
      Hiroyuki Abe
    • Journal Title

      Proceedings CD of The XII^<th> AAAP Animal Congress 2006 C03-LS-01

      Pages: 1-6

    • Related Report
      2006 Annual Research Report

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Published: 2006-04-01   Modified: 2018-03-28  

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