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

Elucidation of the mechanism by which chiral actin dynamics induces cell chirality

Research Project

Project/Area Number 21K06188
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionOsaka University

Principal Investigator

Inaki Mikiko  大阪大学, 大学院理学研究科, 講師 (10747679)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords細胞キラリティ / Myosin 1D / ショウジョウバエ / アクチン細胞骨格 / Myosin 1C / 左右非対称性 / ミオシン1D / ミオシン1C / ミオシン1D
Outline of Research at the Start

生物は、体の外形や内部構造に左右非対称な形態や機能を持ち、その形成は、遺伝的に厳密に制御されている。近年、細胞の形態や動きにも左右性が見られることが明らかになりつつあり、それは細胞のキラリティと呼ばれる。ショウジョウバエでは、細胞キラリティが、組織のキラリティである左右非対称性形成に働くことが示されている。また、培養細胞やin vitroの系ではアクチン繊維の動態にキラリティがあることが示されている。しかしながら、これらアクチンのキラルな動態が、どのように細胞のキラリティを誘導できるかは明らかにされていない。本研究課題では、分子のキラルな動態による細胞キラリティの誘導機構を解明する。

Outline of Final Research Achievements

This study aimed to elucidate the mechanism of cell chirality induction by the chiral molecular dynamics, which is a major issue in the mechanism of laterality formation by cell chirality. We performed live imaging using larval epidermis, where cell chirality can be induced de novo. As a result, it was found that cell chirality increases from the first to the third instar, and oriented actin fibers are observed. We also searched for the domain responsible for inducing chirality in type 1 myosin. The results showed that four loop domains that interact with actin filaments are sufficient for Myosin1C activity.

Academic Significance and Societal Importance of the Research Achievements

細胞キラリティは、様々な生物種および細胞種で発見されているが、その形成機構は不明であり、まだ分子基盤の明らかにされていない数少ない生命現象の一つである。アクチン繊維を含む多くの生体高分子はキラリティを示すが、アクチン繊維にキラルな動きを誘導できるのは、ショウジョウバエMyosin1Dと藻類の限られたミオシンのみである。本研究により、生体内でMyosin1Dが細胞キラリティを増強する過程で配向性のあるアクチン繊維を誘導することがわかり、生体内での細胞キラリティ形成過程の一端を初めて明らかにすることができた。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (11 results)

  • [Journal Article] High-precision calorimetry-based analysis of pupal-pharate adult development in Drosophila melanogaster.2024

    • Author(s)
      Nagano Y, Inaki M, Matsuno K
    • Journal Title

      Zoological science

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The <i>Drosophila</i> AWP1 ortholog Doctor No regulates JAK/STAT signaling for left?right asymmetry in the gut by promoting receptor endocytosis2023

    • Author(s)
      Lai Yi-Ting、Sasamura Takeshi、Kuroda Junpei、Maeda Reo、Nakamura Mitsutoshi、Hatori Ryo、Ishibashi Tomoki、Taniguchi Kiichiro、Ooike Masashi、Taguchi Tomohiro、Nakazawa Naotaka、Hozumi Shunya、Okumura Takashi、Aigaki Toshiro、Inaki Mikiko、Matsuno Kenji
    • Journal Title

      Development

      Volume: 150 Issue: 6

    • DOI

      10.1242/dev.201224

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Live imaging of delamination in Drosophila shows epithelial cell motility and invasiveness are independently regulated2022

    • Author(s)
      Inaki Mikiko、Vishnu Smitha、Matsuno Kenji
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 16210-16210

    • DOI

      10.1038/s41598-022-20492-1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Notch Missense Mutations in Drosophila Reveal Functions of Specific EGF-like Repeats in Notch Folding, Trafficking, and Signaling2022

    • Author(s)
      Nurmahdi Hilman、Hasegawa Mao、Mujizah Elzava Yuslimatin、Sasamura Takeshi、Inaki Mikiko、Yamamoto Shinya、Yamakawa Tomoko、Matsuno Kenji
    • Journal Title

      Biomolecules

      Volume: 12 Issue: 12 Pages: 1752-1752

    • DOI

      10.3390/biom12121752

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Collective nuclear behavior shapes bilateral nuclear symmetry for subsequent left-right asymmetric morphogenesis in Drosophila2021

    • Author(s)
      Shin Dongsun、Nakamura Mitsutoshi、Morishita Yoshitaka、Eiraku Mototsugu、Yamakawa Tomoko、Sasamura Takeshi、Akiyama Masakazu、Inaki Mikiko、Matsuno Kenji
    • Journal Title

      Development

      Volume: 148 Issue: 18 Pages: 1-12

    • DOI

      10.1242/dev.198507

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Identification of initial cue that leads to the left-right asymmetric morphogenesis of the embryonic midgut using a novel image- standardizing technique in Drosophila2023

    • Author(s)
      Takamasa Higashi, Dongsun Shin, Mikiko Inaki, Takuya Nomura, Florian Neugebauer, Kenji Matsuno
    • Organizer
      第56回発生生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] narigoma enhancer controls left-right asymmetry of the anterior gut in Drosophila2023

    • Author(s)
      Florian Lucas Neugebauer, Takuya Nomura, Mikiko Inaki, Kenji Matsuno
    • Organizer
      第56回発生生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Twist and elongation of gut tube independently arise through chiral cell sliding and convergent extension, respectively, in epithelial tissue2023

    • Author(s)
      Mikiko Inaki, Satoru Okuda, Kenji Matsuno
    • Organizer
      第46回日本分子生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Unraveling the genetic regulatory network controlling L-R asymmetry in the anterior gut of Drosophila melanogaster2023

    • Author(s)
      Florian Neugebauer, Takuya Nomura, Mikiko Inaki, Kenji Matsun
    • Organizer
      第46回日本分子生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 画像平均化を用いたショウジョウバエ中腸における左右非対称性形成のキューの探索2023

    • Author(s)
      東 貴允、Dongsun Shin、稲木 美紀子、野村 卓矢、Neugebauer Florian、松野 健治
    • Organizer
      第46回日本分子生物学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Twist and elongation of gut tube independently arise through chiral cell sliding and convergent extension, respectively, in epithelial tissue.2022

    • Author(s)
      Inaki M, Okuda S, Matsuno K
    • Organizer
      第55回 日本発生生物学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Live imaging of delamination in Drosophila shows that epithelial cell motility and invasiveness are independently regulated.2022

    • Author(s)
      Inaki M, Yada K, Matsuno K
    • Organizer
      第74回 日本細胞生物学会大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Elucidation of the mechanism by which epithelial cells acquire mobility stepwisely.2022

    • Author(s)
      Mikiko Inaki, Kengo Yada, Kenji Matsuno
    • Organizer
      第45回 分子生物学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Twist and elongation of gut tube independently arise through chiral cell sliding and convergent extension, respectively, in epithelial tissue.2021

    • Author(s)
      Inaki M, Matsuno K
    • Organizer
      第44回 分子生物学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Twist and elongation of gut tube independently arise through chiral cell sliding and convergent extension, respectively, in epithelial tissue.2021

    • Author(s)
      Inaki M, Matsuno K
    • Organizer
      ショウジョウバエ研究会第14回研究集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Twist and elongation of gut tube independently arise through chiral cell sliding and convergent extension, respectively, in epithelial tissue.2021

    • Author(s)
      Inaki M, Matsuno K
    • Organizer
      第54回 日本発生生物学会合同大会
    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi