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Mechanical control of rhythmic flagellar beating motions

Research Project

Project/Area Number 19H02566
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 28040:Nanobioscience-related
Research InstitutionKindai University

Principal Investigator

Nishiyama Masayoshi  近畿大学, 理工学部, 准教授 (10346075)

Co-Investigator(Kenkyū-buntansha) 八木 俊樹  県立広島大学, 生命環境学部, 教授 (40292833)
今井 洋  大阪大学, 大学院理学研究科, 助教 (60391869)
松浦 宏治  岡山理科大学, 工学部, 准教授 (70443223)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords鞭毛 / 高圧力顕微鏡 / 運動マシナリ / 分子操作 / ナノバイオ
Outline of Research at the Start

精子は頭部から伸張させた長い鞭毛繊維を滑らかに振動させて卵子へと遊泳する。この精子鞭毛の振動現象は、ダイニンと微小管の滑り運動を起動力とし、それ以外の構造体は鞭毛全体が滑らかに動くようにサポートする働きがある。本研究課題では、高圧力下で見いだされた非運動性の鞭毛振動の動作機構を調べることで、精子鞭毛がどのような仕組みで駆動しているのか、また、どのようにすれば鞭毛運動を活性化できるのかを明らかにする研究に取り組む。

Outline of Final Research Achievements

The beating of eukaryotic flagella depends on the sliding movements between microtubules powered by dynein. In flagella of most organisms, microtubule sliding is regulated by the internal structure of flagella comprising the central pair of microtubules (CP) and radial spokes (RS). Chlamydomonas paralyzed-flagella (pf) mutants lacking CP or RS are non-motile under physiological conditions. Here, we show that high hydrostatic pressure induces vigorous flagellar beating in pf mutants. The beating pattern at 40 MPa was similar to that of wild type at atmospheric pressure. In addition, at 80 MPa, flagella underwent an asymmetric-to-symmetric waveform conversion, similar to the one triggered by an increase in intra-flagella Ca2+ concentration during cell’s response to strong light. Thus, our study establishes that neither beating nor waveform conversion of flagella requires the presence of CP/RS in the axoneme.

Academic Significance and Societal Importance of the Research Achievements

ヒトの体の中ではたらく繊毛や鞭毛が動かなくなると,「繊毛病」と呼ばれる病気の症状が現れる。例えば, 精子の鞭毛が動かなくなると不妊症になる。今回,調べた「緑藻クラミドモナス」は,ヒトの繊毛や鞭毛とほぼ同じ仕組みで動いている。今回, 明らかにした静水圧による鞭毛運動の活性化法を応用すれば,なんらかの理由で動かないヒトの鞭毛や繊毛の不調を回復させ,不妊治療などにつなげられる可能性が出てくる。

Report

(3 results)
  • 2022 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (19 results)

All 2022 2021 2020 2019 Other

All Journal Article (10 results) (of which Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (2 results)

  • [Journal Article] Temperature-dependent Change of Ciliary Axoneme Structure2021

    • Author(s)
      八木俊樹, 藤田洋介, 上村慎治, 岩本裕之
    • Journal Title

      SPring-8/SACLA Research Report

      Volume: 9 Issue: 6 Pages: 375-379

    • DOI

      10.18957/rr.9.6.375

    • NAID

      130008112298

    • ISSN
      2187-6886
    • Year and Date
      2021-10-29
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pressure-induced changes on the morphology and gene expression in mammalian cells2021

    • Author(s)
      Okamoto K, Watanabe TM, Horie M, Nishiyama M, Harada Y, Fujita H
    • Journal Title

      Biology Open

      Volume: 10 Issue: 7

    • DOI

      10.1242/bio.058544

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glycine insertion modulates the fluorescence properties of <i>Aequorea victoria</i> green fluorescent protein and its variants in their ambient environment2021

    • Author(s)
      Morikawa TJ, Nishiyama M, Yoshizawa K, Fujita H, Watanabe TM
    • Journal Title

      Biophysics and Physicobiology

      Volume: 18 Issue: 0 Pages: 145-158

    • DOI

      10.2142/biophysico.bppb-v18.016

    • NAID

      130008054055

    • ISSN
      2189-4779
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 高圧力下で蘇る鞭毛運動2021

    • Author(s)
      八木俊樹, 西山雅祥
    • Journal Title

      化学

      Volume: 76 Pages: 41-45

    • NAID

      40022513900

    • Related Report
      2020 Annual Research Report
    • Open Access
  • [Journal Article] Activation of Eukaryotic Flagellar Beating at High-Pressure2021

    • Author(s)
      八木俊樹, 西山雅祥
    • Journal Title

      The Review of High Pressure Science and Technology

      Volume: 31 Issue: 2 Pages: 66-73

    • DOI

      10.4131/jshpreview.31.66

    • NAID

      130008111013

    • ISSN
      0917-639X, 1348-1940
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High hydrostatic pressure induces vigorous flagellar beating in Chlamydomonas non-motile mutants lacking the central apparatus2020

    • Author(s)
      Yagi T. & Nishiyama M.
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1

    • DOI

      10.1038/s41598-020-58832-8

    • NAID

      120006799256

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Increased hydrostatic pressure induces nuclear translocation of DAF-16/FOXO in C.elegans2020

    • Author(s)
      Watanabe Naoshi、Morimatsu Masatoshi、Fujita Ayano、Teranishi Mika、Sudevan Surabhi、Watanabe Masaru、Iwasa Hiroaki、Hata Yutaka、Kagi Hiroyuki、Nishiyama Masayoshi、Naruse Keiji、Higashitani Atsushi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 523 Issue: 4 Pages: 853-858

    • DOI

      10.1016/j.bbrc.2020.01.047

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High pressure inhibits signaling protein binding to the flagellar motor and bacterial chemotaxis through enhanced hydration2020

    • Author(s)
      Hata H., Nishihara Y., Nishiyama M., Sowa Y., Kawagishi I. & Kitao A.
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 2351-2351

    • DOI

      10.1038/s41598-020-59172-3

    • NAID

      120006811771

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Session 1SHA-control of biological functions with hydrostatic pressure stimulation.2020

    • Author(s)
      Hata H. & Nishiyama M.
    • Journal Title

      Biophysical Reviews

      Volume: - Issue: 2 Pages: 269-270

    • DOI

      10.1007/s12551-020-00658-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular dynamics simulation of proteins under high pressure: Structure, function and thermodynamics2020

    • Author(s)
      Hata Hiroaki、Nishiyama Masayoshi、Kitao Akio
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - General Subjects

      Volume: 1864 Issue: 2 Pages: 129395-129395

    • DOI

      10.1016/j.bbagen.2019.07.004

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Pressure-induced changes on the morphology and gene expression in mammalian cells2022

    • Author(s)
      Okamoto K, Watanabe TM, Horie M, Nishiyama M, Harada Y, Fujita H
    • Organizer
      66th Annual Meeting of Biophysical Society, USA
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A novel Chlamydomonas mutant harboring a point mutation in Intermediate Chain 2 of outer-arm dynein displays lowered motility2021

    • Author(s)
      Kondo Y, Ogawa T, Kanno E, Hirono M, Kato-Minoura T, Kamiya R, Yagi T
    • Organizer
      Dynein 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] クラミドモナスにおける軸糸ダイニンの活性調節2021

    • Author(s)
      近藤裕祐, 八木俊樹
    • Organizer
      第92回 日本動物学会(オンライン)
    • Related Report
      2020 Annual Research Report
  • [Presentation] クラミドモナス鞭毛マイナーダイニンの解析2021

    • Author(s)
      佐原歩奈, 小松大洋, 八木俊樹
    • Organizer
      第92回 日本動物学会(オンライン)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Regulation of axonemal dynein motor activity in Chlamydomonas2021

    • Author(s)
      Kondo Y, Yagi T
    • Organizer
      第59回 日本生物物理学会(オンライン)
    • Related Report
      2020 Annual Research Report
  • [Presentation] Activation of the motility machineries using high-pressure techniques.2019

    • Author(s)
      Nishiyama M.
    • Organizer
      57th Annual Meeting of Biophysical Society of Japan(招待講演)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 静水圧を力学刺激とする生命操作技術の開発2019

    • Author(s)
      西山 雅祥
    • Organizer
      日本メカノバイオロジー研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Remarks] 失った細胞機能を水圧で再生

    • URL

      https://www.kindai.ac.jp/news-pr/news-release/2020/02/019291.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 失った細胞機能を水圧で再生

    • URL

      https://www.pu-hiroshima.ac.jp/site/press-release/200206kenhiro-shobara.html

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2024-01-30  

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