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

What are the geometrical factors that regulate the propagation of calcium signals in astrocytes?

Research Project

Project/Area Number 21F21733
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionOkinawa Institute of Science and Technology Graduate University

Principal Investigator

DeSchutter Erik  沖縄科学技術大学院大学, 計算脳科学ユニット, 教授 (00466319)

Co-Investigator(Kenkyū-buntansha) DENIZOT AUDREY  沖縄科学技術大学院大学, 計算脳科学ユニット, 外国人特別研究員
Project Period (FY) 2021-07-28 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2022: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2021: ¥800,000 (Direct Cost: ¥800,000)
Keywordsastrocyte / calcium signals / glia / modeling / reaction diffusion / 3D reconstruction / neuroscience / astrocytes / calcium signaling / interdisciplinary
Outline of Research at the Start

This research aims at decoding the astrocyte “Calcium code”by answering the following question: what are the geometrical factors that regulate the propagation of calcium signals in astrocytes?

Outline of Annual Research Achievements

The simulation results from my work in FY2022 provided novel insights into the structural determinants that finely tune neuron-astrocyte communication in the brain. This work is of high importance as such investigations cannot be performed in live tissue because of the technical limitations to study biological processes at the nanoscale.
The CellScatter software developed during FY2022 will provide computational scientists with realistic 3D cell reconstructions in open-access to investigate various (patho-)physiological biological conditions. We expect that it will have a big impact on the cell biology and neuroscience communities, paving the way for future experimental and theoretical studies on the structural determinants of biochemical processes in health and disease.
Overall, this work unraveled mechanisms by which the complex intracellular nano-architecture shapes the spatio-temporal properties of biochemical signals in health and disease.
In FY2022, this work has led to the publication of 2 articles in peer-reviewed international journals (DOI: 10.1002/glia.24258 and 10.1007/s12031-022-02006-w). An additional manuscript is under peer review (DOI: 10.1101/2022.02.28.482292) and another is in preparation (Denizot et al., 2023, in prep.). I presented those results at both national and international events: 2 talks (Society for Neuroscience, online, Nov 2022 and the 45th Annual Meeting of the Japan Neuroscience Society, Japan, June 2022) and 1 poster (Federation of European Neuroscience Societies Forum 2022, Paris, France, July 2022).

Research Progress Status

令和4年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和4年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (16 results)

All 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Open Access: 2 results,  Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results)

  • [Journal Article] Control of Ca2+ signals by astrocyte nanoscale morphology at tripartite synapses2022

    • Author(s)
      Denizot Audrey、Arizono Misa、Neagerl U. Valentin、Berry Hugues、De Schutter Erik
    • Journal Title

      Glia

      Volume: 70 Issue: 12 Pages: 2378-2391

    • DOI

      10.1002/glia.24258

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Reinforcing Interdisciplinary Collaborations to Unravel the Astrocyte “Calcium Code”2022

    • Author(s)
      A. Covelo, A. Badoual, A. Denizot.
    • Journal Title

      Journal of Molecular Neuroscience

      Volume: 72 Issue: 7 Pages: 1443-1455

    • DOI

      10.1007/s12031-022-02006-w

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Journal Article] The endoplasmic reticulum in perisynaptic astrocytic processes: shape, distribution and effect on calcium activity.2022

    • Author(s)
      Denizot, A., Castillo, M.F.V., Puchenkov, P., Cali, C. and De Schutter, E.
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2022.02.28.482292

    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Stochastic Spatially-Extended Simulations Predict the Effect of ER Distribution on Astrocytic Microdomain Ca2+ Activity.2021

    • Author(s)
      Denizot, A., Cali, C., Berry, H. and De Schutter, E.
    • Journal Title

      Proceedings of the Eight Annual ACM International Conference on Nanoscale Computing and Communication

      Volume: - Pages: 1-5

    • DOI

      10.1145/3477206.3477456

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Simulation of Astrocytic Calcium Dynamics in Lattice Light Sheet Microscopy Images2021

    • Author(s)
      Badoual, A., Arizono, M., Denizot, A., Ducros, M., Berry, H., Nagerl, U.V. and Kervrann, C.
    • Journal Title

      2021 IEEE 18th International Symposium on Biomedical Imaging (ISBI)

      Volume: - Pages: 135-139

    • DOI

      10.1109/isbi48211.2021.9433984

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ltrastructural and functional study of the endoplasmic reticulum in perisynaptic astrocytic processes2022

    • Author(s)
      A. Denizot, M. F. Veloz Castillo, P. Puchenkov, C. Cali, E. De Schutter.
    • Organizer
      Society for Neuroscience
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The endoplasmic reticulum in fine astrocytic processes: presence, shape, distribution and effect on Ca2+ activity2022

    • Author(s)
      A. Denizot, M. F. Veloz Castillo, P. Puchenkov, C. Cali, E. De Schutter.
    • Organizer
      Federation ofEuropean Neuroscience Societies Forum 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Endoplasmic reticulum-plasma membranecontact sites in perisynaptic astrocytic processes: properties and effects2022

    • Author(s)
      A. Denizot, M. F. Veloz Castillo, C. Cali, E. De Schutter.
    • Organizer
      The 45th Annual Meeting of the Japan Neuroscience Society(NEURO2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Decoding the astrocytic calcium code with computational approaches2022

    • Author(s)
      A. Denizot.
    • Organizer
      99th Annual Meeting of the Physiological Society of Japan
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] “Decoding the astrocytic calcium code with computational approaches.”2022

    • Author(s)
      A. Denizot, E. De Schutter
    • Organizer
      99th Annual Meeting of the Physiological Society of Japan
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Spatially-Extended Simulations Predict the Effect of ER Distribution onAstrocytic Microdomain Ca2+ Activity2021

    • Author(s)
      A. Denizot
    • Organizer
      8th ACM International Conference on Nanoscale Computing and CommunicationVirtual Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Probing the localization of the endoplasmic reticulum in the gliapil and its effect on astrocytic calcium signals2021

    • Author(s)
      A. Denizot, C. Cali, H. Berry, E. De Schutter
    • Organizer
      XV European Meeting on Glial Cells in Health and Disease, GLIA 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The nanoscale morphology of astrocyte branchlets governs local calcium activity.2021

    • Author(s)
      A. Denizot, M. Arizono, V. U. Nagerl, E. De Schutter, H. Berry.
    • Organizer
      The 44th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Annual Research Report
  • [Presentation] Disentangling astrocytic calcium signals: insights from spatially-extended models.2021

    • Author(s)
      A. Denizot
    • Organizer
      Annual Computational Neuroscience Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Computational approaches for simulating calcium signals in astrocytes: insights, limitations, challenges and perspectives.2021

    • Author(s)
      A. Denizot
    • Organizer
      1st Virtual Conference of the European Society for Neurochemistry “Future perspectives for European neurochemistry - a young scientist’s conference”
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Elucidating the morphology of the endoplasmic reticulum in fine astrocyte branchlets and its effect on calcium signals2021

    • Author(s)
      A. Denizot, C. Cali, H. Berry, E. De Schutter
    • Organizer
      1st Virtual Conference of the European Society for Neurochemistry “Future perspectives for European neurochemistry - a young scientist’s conference”
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2021-07-29   Modified: 2024-03-26  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi