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2016 Fiscal Year Annual Research Report

Mechanism regulating the swimming behavior of sperm by calcium- A role of actin

Research Project

Project/Area Number 25291072
Research InstitutionThe University of Tokyo

Principal Investigator

真行寺 千佳子  東京大学, 理学(系)研究科(研究院), 准教授 (80125997)

Co-Investigator(Kenkyū-buntansha) 北島 健  名古屋大学, 生物機能開発利用研究センター, 教授 (80192558)
Project Period (FY) 2013-04-01 – 2017-03-31
Keywords生体分子 / 生理学 / 細胞 / アクチン / カルシウム / 膜ラフト
Outline of Annual Research Achievements

精子は,卵からの誘因物質に引き寄せられるようにして,遊泳方向を巧みに制御し,受精に至る。ウニなどの精子に見られる遊泳方向の制御は,カルシウム濃度に依存した鞭毛運動の変化によって引き起こされる。しかし,膜タンパク質を介する細胞内カルシウム濃度の調節,およびカルシウムによる鞭毛運動の制御の機構は,ほとんど解明されていない。本研究では,カルシウム反応を「機械刺激により誘導」するという技術的ブレークスルーにより,遊泳する精子の挙動から,カルシウム動態の高精度の解析を実現し,カルシウムの流入と排出についての膜直下のアクチン繊維を介した新しい制御モデルを提案し,その検証実験を行い,カルシウムによる鞭毛運動制御の方向性を示すことを目指した。機械刺激に依存した精子の遊泳方向制御過程の解析から,カルシウム排出過程の早い時期にアクチン繊維の存在が反応の制御に関与する可能性が明らかとなった。さらに,このアクチン繊維の関わるカルシウム濃度の制御系における役割の検討を行い,カルシウム排出が,ラフト形成を伴った制御によっているのかを明らかにするため,ラフト関連脂質を可視化することによりこれを実現することを目指した。そこで,ラフト動態を反映すると予想されるスフィンゴリン脂質の蛍光プローブをマーカーとして、カルシウム動態に対応した鞭毛の運動と蛍光プローブの1分子解析を行なった。その結果、カルシウム排出に関わる膜タンパク質の動態が、ラフト移動に伴う動的機能制御と一致することを見出した。以上の結果から、カルシウム動態におけるアクチンおよび膜ラフトの役割の概要が明らかとなった。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

  • Research Products

    (21 results)

All 2017 2016 Other

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 5 results,  Acknowledgement Compliant: 1 results) Presentation (14 results) (of which Int'l Joint Research: 14 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Effects of external strain on the regulation of microtubule sliding induced by outer arm dynein of sea urchin sperm flagella2017

    • Author(s)
      Yoke, H. and Shingyoji, C.
    • Journal Title

      J. Exp. Biol.

      Volume: 220 Pages: 1122-1134

    • DOI

      10.1242/jeb.147942

    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Diverse subcellular localizations of the insect CMP-sialic acid synthetases.2017

    • Author(s)
      Wu D, Fujita A, Hamaguchi K, Delannoy P, Sato C, Kitajima K.
    • Journal Title

      Glycobiology

      Volume: 27 Pages: 329-341

    • DOI

      doi: https://doi.org/10.1093/glycob/cww128

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of intronic single nucleotide polymorphisms (iSNPs) of a polysialyltransferase, ST8SIA2 gene found in psychiatric disorders on its gene products2016

    • Author(s)
      Hane M, Kitajima K, Sato C.
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: 478 Pages: 1123-1129

    • DOI

      doi: 10.1016/j.bbrc.2016.08.079

    • Peer Reviewed / Open Access
  • [Journal Article] The AMOR Arabinogalactan Sugar Chain Induces Pollen-Tube Competency to Respond to Ovular Guidance.2016

    • Author(s)
      Mizukami AG, Inatsugi R, Jiao J, Kotake T, Kuwata K, Ootani K, Okuda S, Sankaranarayanan S, Sato Y, Maruyama D, Iwai H, Garenaux E, Sato C, Kitajima K, Tsumuraya Y, Mori H, Yamaguchi J, Itami K, Sasaki N, Higashiyama T.
    • Journal Title

      Curr Biol.

      Volume: 26 Pages: 1091-1097

    • DOI

      doi: 10.1016/j.cub.2016.02.040

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relationship between ST8SIA2, polysialic acid and its binding molecules, and psychiatric disorders.2016

    • Author(s)
      Sato C, Hane M, Kitajima K.
    • Journal Title

      Biochim Biophys Acta.

      Volume: 1860 Pages: 1739-1752

    • DOI

      doi: 10.1016/j.bbagen.2016.04.015

    • Peer Reviewed / Open Access
  • [Presentation] Roles of plasma membrane modification in the regulation of intracellular calcium in sea urchin spermatozoa.2017

    • Author(s)
      Izumi Nakano, Yuichi Inoue, Takeru Kanazawa, Chihiro Sato, Ken Kitajima, Kenichi Suzuki, Akihiko Kusumi, Chikako Shingyoji
    • Organizer
      The 5th International Symposium on Dynamical Ordering of Biomolecular Systems for Creation of Integrated Functions
    • Place of Presentation
      The University of Tokyo Komaba Campus (Tokyo, Shibuya-ku)
    • Year and Date
      2017-01-21 – 2017-01-22
    • Int'l Joint Research
  • [Presentation] Effects of mechanical deformation on the sliding velocity of microtubules interacted with outer arm dyneins of sea urchin sperm flagella.2017

    • Author(s)
      Takashi Fujiwara and Chikako Shingyoji
    • Organizer
      The 5th International Symposium on Dynamical Ordering of Biomolecular Systems for Creation of Integrated Functions,
    • Place of Presentation
      The University of Tokyo Komaba Campus (Tokyo, Shibuya-ku)
    • Year and Date
      2017-01-21 – 2017-01-22
    • Int'l Joint Research
  • [Presentation] Light-induced Ca2+-dependent flagellar response of sperm in the presence of pyrenebutyrate.2017

    • Author(s)
      Jittrapon Jirakulsomchok, Izumi Nakano, Chikako Shingyoji
    • Organizer
      The 5th International Symposium on Dynamical Ordering of Biomolecular Systems for Creation of Integrated Functions,
    • Place of Presentation
      The University of Tokyo Komaba Campus (Tokyo, Shibuya-ku)
    • Year and Date
      2017-01-21 – 2017-01-22
    • Int'l Joint Research
  • [Presentation] Critical conditions in inducing flagellar responses by mechanical deformation in demembranated motionless sea urchin sperm at low ATP.2017

    • Author(s)
      Yasuhide Izawa and Chikako Shingyoji
    • Organizer
      The 5th International Symposium on Dynamical Ordering of Biomolecular Systems for Creation of Integrated Functions,
    • Place of Presentation
      The University of Tokyo Komaba Campus (Tokyo, Shibuya-ku)
    • Year and Date
      2017-01-21 – 2017-01-22
    • Int'l Joint Research
  • [Presentation] Mechanical activity of dynein and its dynamical regulation underlying oscillatory movement of sperm flagella.2017

    • Author(s)
      C. Shingyoji, H. Yoke and Y. Izawa
    • Organizer
      The 5th International Symposium on Dynamical Ordering of Biomolecular Systems for Creation of Integrated Functions,
    • Place of Presentation
      The University of Tokyo Komaba Campus (Tokyo, Shibuya-ku)
    • Year and Date
      2017-01-21 – 2017-01-22
    • Int'l Joint Research
  • [Presentation] Factors important for mechanical deformation induced cyclical bending in motionless sea urchin sperm flagella at low ATP concentrations.2016

    • Author(s)
      Y. Izawa and C. Shingyoji
    • Organizer
      The 22nd International Congress of Zoology and The 87th Meeting of Zoological Society of Japan,
    • Place of Presentation
      Okinawa Institute of Science and Technology Graduate University (Okinawa , Onna-son) and Okinawa Convention Center (Okinawa , Ginowan)
    • Year and Date
      2016-11-14 – 2016-11-19
    • Int'l Joint Research
  • [Presentation] Effects of mechanical deformation on the velocity of microtubule gliding movement induced by isolated outer arm dynein of sea urchin sperm flagella.2016

    • Author(s)
      T. Fujiwara and C. Shingyoji
    • Organizer
      The 22nd International Congress of Zoology and The 87th Meeting of Zoological Society of Japan,
    • Place of Presentation
      Okinawa Institute of Science and Technology Graduate University (Okinawa , Onna-son) and Okinawa Convention Center (Okinawa , Ginowan)
    • Year and Date
      2016-11-14 – 2016-11-19
    • Int'l Joint Research
  • [Presentation] Strain-sensitive regulation of mechanical activities of dyneins underlying oscillatory movement of sperm flagella.2016

    • Author(s)
      C. Shingyoji, H. Yoke, I. Nakano, Y. Inoue, H. Higuchi
    • Organizer
      The 22nd International Congress of Zoology and The 87th Meeting of Zoological Society of Japan,
    • Place of Presentation
      Okinawa Institute of Science and Technology Graduate University (Okinawa , Onna-son) and Okinawa Convention Center (Okinawa , Ginowan)
    • Year and Date
      2016-11-14 – 2016-11-19
    • Int'l Joint Research
  • [Presentation] A Novel Method to Induce Light-controlled Calcium-dependent Flagellar Responses in the Presence of Pyrenebutyrate in Sea Urchin Sperm.2016

    • Author(s)
      J. Jirakulsomchok, I. Nakano, C. Shingyoji
    • Organizer
      The 22nd International Congress of Zoology and The 87th Meeting of Zoological Society of Japan,
    • Place of Presentation
      Okinawa Institute of Science and Technology Graduate University (Okinawa , Onna-son) and Okinawa Convention Center (Okinawa , Ginowan)
    • Year and Date
      2016-11-14 – 2016-11-19
    • Int'l Joint Research
  • [Presentation] Dynamic roles of plasma membrane protein in the regulation of intracellular calcium in sea urchin spermatozoa.2016

    • Author(s)
      I. Nakano, Y. Inoue, T. Kanazawa, C. Sato, K. Kitajima, C. Shingyoji
    • Organizer
      The 22nd International Congress of Zoology and The 87th Meeting of Zoological Society of Japan,
    • Place of Presentation
      Okinawa Institute of Science and Technology Graduate University (Okinawa , Onna-son) and Okinawa Convention Center (Okinawa , Ginowan)
    • Year and Date
      2016-11-14 – 2016-11-19
    • Int'l Joint Research
  • [Presentation] Elusive Localization of the Insect CMP-sialic Acid Synthetases.2016

    • Author(s)
      Ken Kitajima
    • Organizer
      The Sialoglyco 2016 conference
    • Place of Presentation
      Santa Barbara, USA
    • Year and Date
      2016-11-14 – 2016-11-17
    • Int'l Joint Research / Invited
  • [Presentation] Glycan-mediated Interactions on Pig Sperm Lipid Rafts during Fertilization2016

    • Author(s)
      Ken Kitajima
    • Organizer
      APMC11 / MST33 / AAT39 Conference
    • Place of Presentation
      Phuket, Thailand
    • Year and Date
      2016-05-23 – 2016-05-27
    • Int'l Joint Research / Invited
  • [Presentation] Present status and future prospects of deaminoneuraminic acid (KDN) biology at the 30th anniversary of discovery.2016

    • Author(s)
      Ken Kitajima
    • Organizer
      Frontiers in Sialic Acid Research Conference: From Structural Diversity to Functional Glycobiology
    • Place of Presentation
      Bad Lauterberg, Germany
    • Year and Date
      2016-04-23 – 2016-04-25
    • Int'l Joint Research / Invited
  • [Presentation] Why does sialic acid deficiency cause the embryonic lethality in medaka fish, Oryzias latipes?2016

    • Author(s)
      Ken Kitajima
    • Organizer
      Glycoscience Japan- The Netherlands Joint Seminar 2016
    • Place of Presentation
      Leiden, The Netherlands
    • Year and Date
      2016-04-19 – 2016-04-22
    • Int'l Joint Research / Invited
  • [Book] Muscle Contraction and Cell Motility: Fundamentals and Developments2016

    • Author(s)
      C. Shingyoji
    • Total Pages
      447
    • Publisher
      Pan Stanford Publishing
  • [Remarks] 進化細胞生物学研究室 研究内容

    • URL

      http://www.biol.s.u-tokyo.ac.jp/users/hikaku/research/index.html

URL: 

Published: 2018-01-16  

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