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Quantitative analysis of developmental neurotoxicity due to embryonic exposure of pesticides

Research Project

Project/Area Number 20K12621
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionToyohashi University of Technology

Principal Investigator

Yoshida Sachiko  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (40222393)

Co-Investigator(Kenkyū-buntansha) 穂積 直裕  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (30314090)
田村 和輝  浜松医科大学, 光尖端医学教育研究センター, 助教 (40822614)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords発達神経毒性 / 機械学習 / 超音波顕微鏡 / 腸内細菌叢 / 小脳 / ミクログリア / 動物実験 / プルキンエ細胞 / アストロサイト / 深層学習 / エピジェネティクス / 定量評価 / 農薬
Outline of Research at the Start

子供の発達障害は現代社会が共通して抱える問題であり、その原因には様々の仮説が提示されてきた。環境内物質はその大きな素因の一つで、発達神経毒性を有する化学物質は有機金属、医薬品、農薬など多種にわたっている。これらの毒性については、iPS 細胞などヒト in vitro 系研究を用いた解明も進んでいる。一方、農薬など比較的安全性が確立した物質の曝露では、細胞に明瞭な毒性が現れにくい。この場合、小さい変性が動物個体の発達に伴い歪んだ回路を形成して大きな障害となる「関係性の障害」が生じる可能性がある。発達過程の微弱な変化をAIを用いて集約し、回路発達に伴う発達神経毒性する技術が必要であるを解明する。

Outline of Final Research Achievements

Pesticides are expected to be a source of developmental neurotoxicity, but it is hard to detect their neurotoxicity in vitro models. With exposure to these relatively safe substances, small degenerative changes in the cells themselves may become significant disturbances as the circuit develops in individual animals, and techniques are needed to consolidate the subtle exhibited modifications during development. In this study, the herbicide glyphosate and the insecticides acetamiprid and chlorpyrifos were administered acutely or chronically during the embryonic period, and the neurodevelopment and behavior of the birth pups, changes in the gut flora, and changes in the reactivity of immune system cells in the brain were observed in a continuous and multidimensional manner. Effects on neural circuits were observed even after a minute, and chronic administration, and the impact of pesticides on cells were quantitatively evaluated from parameterization by machine learning.

Academic Significance and Societal Importance of the Research Achievements

子供の発達障害は、現代社会が共通して抱える問題であり、環境内因子の影響はその大きな素因の一つで、発達神経毒性を有する化学物質は有機金属、医薬品、農薬など多種にわたっている。一方、近年の農薬は、急性毒性の低い、変異原性の少ない製品が開発されている。農薬など比較的安全な物質の曝露では、細胞自身に生じた小さい変性が、動物個体の中で回路の発達とともに歪んだ回路を形成して大きな障害となる「関係性の障害」が生じる可能性がある。関係性の障害は軽微で検出されにくい可能性があり、これを感知するためには、環境中に推定されるレベルの農薬を胎生期に曝露した動物が、発達過程で示す微弱な変化を集約する技術が必要である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (34 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (25 results) (of which Int'l Joint Research: 10 results,  Invited: 4 results)

  • [Int'l Joint Research] City University of New York(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Alteration of speed-of-sound by fixatives and tissue processing methods in scanning acoustic microscopy2023

    • Author(s)
      Tamura Kazuki、Ito Kazuyo、Yoshida Sachiko、Mamou Jonathan、Miura Katsutoshi、Yamamoto Seiji
    • Journal Title

      Frontiers in Physics

      Volume: 11 Pages: 1-9

    • DOI

      10.3389/fphy.2023.1060296

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 1.Evaluation of elastic change during mitotic phase of murine breast cancer cells using scanning acoustic microscope.2022

    • Author(s)
      Tiong TKS, Sasaki R, Prastika EB, Kawaguchi Y, Kobayashi K, Hozumi N, Yoshida S.
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: - Issue: SG Pages: 1-19

    • DOI

      10.35848/1347-4065/ac54f7

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 2.Time and frequency domain deconvolution for cross-sectional cultured cell observation using an acoustic impedance microscope2022

    • Author(s)
      Prastika EB, Shintani T, Kawashima T, Murakami Y, Hozumi N, Tiong TKS, Yoshida S, Nagaoka R, Kobayashi K.
    • Journal Title

      Ultrasonics

      Volume: 119 Pages: 106601-106601

    • DOI

      10.1016/j.ultras.2021.106601

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Suppression of reflected signals from substrate as clutters for cell measurements using acoustic impedance microscopy2022

    • Author(s)
      Nagaoka Ryo、Hasegawa Hideyuki、Tamura Kazuki、Yoshida Sachiko、Hozumi Naohiro、Kobayashi Kazuto
    • Journal Title

      Ultrasonics

      Volume: 118 Pages: 106580-106580

    • DOI

      10.1016/j.ultras.2021.106580

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 5.Three-dimensional acoustic impedance mapping of human skin by improved time-frequency domain analysis.2021

    • Author(s)
      Prastika EB, Imori A, Kawashima T, Murakami Y, Hozumi N, Yoshida S, Nagaoka R, Kobayashi K.
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 60 Issue: SD Pages: SDDE22-SDDE22

    • DOI

      10.35848/1347-4065/abf512

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Three-dimensional acoustic impedance mapping of human skin by improved time-frequency domain analysis.2021

    • Author(s)
      PRASTIKA EB, Imori A, Kawashima T, Murakami Y, HOZUMI N, Yoshida S, Nagaoka R, Kobayashi K.
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Use of Ultrasound Microscopy for Ex Vivo Analysis of Acoustic Impedance in Mouse Liver with Steatohepatitis2020

    • Author(s)
      Kumagai Hideki、Kobayashi Kazuto、Yoshida Sachiko、Yokoyama Koji、Hirota Norio、Yamagata Takanori
    • Journal Title

      Acoustics

      Volume: 3 Issue: 1 Pages: 3-10

    • DOI

      10.3390/acoustics3010002

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Acoustic impedance interpretation of cross-sectional human skin by using time and frequency domain deconvolution2020

    • Author(s)
      Prastika EB, Imori A, Kawashima T, Murakami Y, Hozumi N, Yoshida S, Nagaoka R,Kobayashi K.
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 59

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Mutuality between neuronal toxicity and microbiome alteration in acute or chronic exposure to glyphosate2023

    • Author(s)
      Yoshida S, Tiong TKS, Koshimura M, Nomura Y, Kanda Y.
    • Organizer
      INA18 (International Neurotoxicology Meeting18)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Embryonic exposure to Neonicotinoid insecticide on neuron-glia interaction in the cerebellum of neonatal rat2023

    • Author(s)
      Lee CLM, Nomura Y, Kanda Y, Yoshida S.
    • Organizer
      INA18 (International Neurotoxicology Meeting18)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Minocycline inhibits lipopolysaccharide (LPS)-induced neurotoxicity.2023

    • Author(s)
      Veloo S, Kanda Y, Yoshida S
    • Organizer
      2023APSN
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PRENATAL EXPOSURE TO GLYPHOSATE CHANGES GLUTAMATE HOMEOSTASIS IN NEWBORN ANIMALS VIA ASTROCYTE DEVELOPMENT2022

    • Author(s)
      Yoshida S, Nomura Y, Kanda Y.
    • Organizer
      DOHaD2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantitative analysis of neural morphological changes in developmental neurotoxicity-induced animals using deep learning.2022

    • Author(s)
      Tamura K
    • Organizer
      NEURO 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Three-dimensional acoustic impedance mapping of cultured biological cells.2022

    • Author(s)
      Hozumi N
    • Organizer
      NEURO 2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Embryonic LPS-administration induces developmental neurotoxicity via HDAC inhibitor-like neuronal alteration2022

    • Author(s)
      Veloo S, Kanda Y, Yoshida S
    • Organizer
      ISN-APSN2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Neurodevelopmental toxicity of embryonic exposure of Acetamiprid in the animal model2022

    • Author(s)
      Lee CLM, Nomura Y, Kanda Y, Yoshida S.
    • Organizer
      ISN-APSN2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒストン脱アセチル化酵素阻害剤の胎児期曝露が引き起こす顆粒細胞遊走異常の異方性及びその性差2022

    • Author(s)
      田中健吾,諌田 康成,吉田祥子
    • Organizer
      第69回中部生理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 有機リン系農薬曝露動物由来ミクログリアの活性化の解明2022

    • Author(s)
      Yap Pey Shin, 穂積直裕,諫田泰成,吉田 祥子
    • Organizer
      第69回中部生理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 胎生期HDAC阻害剤投与による発達期ラット小脳の発達変化の性差の観察2022

    • Author(s)
      松井 紗羅沙,諌田 康成,吉田祥子
    • Organizer
      第69回中部生理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Prenatal chemical exposures induce the hyperplasia of lobule in developing cerebellar cortex and defection of granule cell migration2022

    • Author(s)
      Yoshida S, Veloo S, Kanda Y
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Novel technology for secreting molecular observation: collagen release and effects of UV-A irradiation on human cultured dermal fibroblasts2022

    • Author(s)
      Satake S,Shintani T, Nakada S, Kobayashi K, Ogura Y, Hozumi N, Yoshida S
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Directly assessing the reactivity of rat-derived microglia with scanning acoustic microscope.2021

    • Author(s)
      Lee CLM, Umemura K, Murakami M, Tiong TKS, Kobayashi K, Hozumi N, Yoshida S.
    • Organizer
      USE2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of collagen release from cultured human fibroblasts via ultrasonic microscope.2021

    • Author(s)
      Satake S, Shintani T, Nakada S, Tiong TKS, Prastika EB, Kobayashi K, Hozumi N, Yoshida
    • Organizer
      USE2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Novel assessment for the reactivity of rat-derived microglia with scanning acoustic microscope.2021

    • Author(s)
      Yoshida S, Kanda Y, Kobayashi K, Hozumi N.
    • Organizer
      EMBL Microglia workshop
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prenatal exposure of valproate and HDAC inhibitors induce hyperplasia of cerebellar lobules and epigenetic change of granule cell precursors.2021

    • Author(s)
      Yoshida S, Fukushima M, Kanda Y.
    • Organizer
      The 23rd Biennial Conference of the International Society for Developmental Neuroscience
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prenatal chemical exposure induce developmental neurotoxicity due to epigenetic alterations.2021

    • Author(s)
      吉田祥子
    • Organizer
      第64回神経化学会大会シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Development-progressive neurotoxicity regulated neuroinflammation with prenatal chemical exposure on the rat.2021

    • Author(s)
      Yoshida S, Futagami K, Ohtsuka H, Lee CLM, Tiong TKS, Nomura Y, Kanda Y.
    • Organizer
      第98回日本生理学会大会シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Development-progressive neurotoxicity regulated neuroinflammation with prenatal chemical exposure on the rat.2021

    • Author(s)
      Yoshida S, Nomura Y, Kanda Y
    • Organizer
      第98回日本生理学会大会シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] The developmental effect of chronic and low concentration of Glyphosate exposure in utero2021

    • Author(s)
      Satake S, Futagami K, Tiong TKS, Nomura Y, Kanda Y, Yoshida S
    • Organizer
      第98回日本生理学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Examining the association between a model of butyrate recovery in glyphosate-treated rats and changes in flora in a single dose of butyrate.2021

    • Author(s)
      Inakawa T, Tiong TKS, Futagami K, Nomura Y, Kanda Y, Yoshida S
    • Organizer
      第98回日本生理学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Cytological mechanism of developmental neurotoxicity embryonic LPS exposure2020

    • Author(s)
      Ohtsuka H, Veloo S, Tsunemoto K, Tiong TKS, Kanda Y, Yoshida S
    • Organizer
      2020神経化学学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Behavioral alteration and microbiome transition of the prenatal glyphosate-treated rat.2020

    • Author(s)
      Ohmuro T, Miyamoto K, Tiong TKS, Kanda Y, Yoshida S
    • Organizer
      2020神経化学学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Mechanism of developmental neurotoxicity of chlorpyriphos due to AChE inhibition2020

    • Author(s)
      Matsufusa R, Kanda Y, Yoshida S
    • Organizer
      2020神経化学学会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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