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Elucidation of molecular mechanisms of neurodegeneration caused by dysfunctional senescent astrocytes

Research Project

Project/Area Number 19K07508
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionKagawa University

Principal Investigator

Chiba Yoichi  香川大学, 医学部, 准教授 (30372113)

Co-Investigator(Kenkyū-buntansha) 古川 絢子  鈴鹿医療科学大学, 薬学部, 助教 (10455537)
上野 正樹  香川大学, 医学部, 教授 (30322267)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords神経変性疾患 / 細胞老化 / アストロサイト / プロテオミクス / 加齢性神経変性
Outline of Research at the Start

老化関連疾患の基盤にある生命現象として細胞老化が注目されている。加齢性神経変性疾患においても、老化したグリア細胞が発症に関与する可能性が最近報告された。本研究では、ヒト脳内で最も多数を占め、多彩で重要な機能を有するアストロサイトの老化によりどのような変化が起こり、神経変性を引き起こすのかを明らかにする。細胞老化が起こる前後でアストロサイトの蛋白質発現や神経保護機能を比較し、老化による機能変化を明らかにすることにより、神経変性疾患の新たな治療標的を開拓することを目指す。

Outline of Final Research Achievements

There is an increasing awareness of the contribution of senescent cells to age-related pathologies. Recent studies suggested astrocytes exhibit cellular senescence phenotypes in aged human brain and Alzheimer’s disease. However, the mechanisms that senescent astrocytes affect pathophysiology of brain aging and age-related neurodegenerative diseases remain unclear. Here we investigated changes in protein expression in senescent astrocyte using 2-dimensional fluorescence difference gel electrophoresis (2D-DIGE). Cellular senescence, assessed by senescence-associated β-galactosidase (SA-β-Gal) staining, immunoblotting with p21 and lamin B1 antibodies, and γH2AX immunocytochemistry, was efficiently induced by treating mouse primary astrocytes with 200 μM H2O2 for 2 hours. 2D-DIGE analyses revealed that 5 protein spots showed a significant increase in H2O2-treated astrocytes compared with control, whereas 6 spots exhibited significant decrease in H2O2-treated cells.

Academic Significance and Societal Importance of the Research Achievements

細胞老化は、老化関連疾患の基盤にある現象として近年注目されている。我が国で今後患者数の増加が予想されるアルツハイマー病やパーキンソン病などの加齢性神経変性疾患においても、細胞老化が関わる可能性が示唆されている。アストロサイトは細胞老化関連分泌形質(SASP)因子を発現しうる細胞であり、脳の加齢性変化に密接に関わっている可能性が高い。我々は、老化アストロサイトの形質の変化を蛋白質発現変化の観点から明らかにした。本研究の成果は今後加齢性神経変性疾患の予防や新しい治療を考える上で基盤となる知見をもたらすものと考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 2019

All Journal Article (12 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 12 results,  Open Access: 10 results) Presentation (6 results) (of which Invited: 2 results)

  • [Journal Article] Metabolites and Biomarker Compounds of Neurodegenerative Diseases in Cerebrospinal Fluid2022

    • Author(s)
      Wakamatsu Keiji、Chiba Yoichi、Murakami Ryuta、Miyai Yumi、Matsumoto Koichi、Kamada Masaki、Nonaka Wakako、Uemura Naoya、Yanase Ken、Ueno Masaki
    • Journal Title

      Metabolites

      Volume: 12 Issue: 4 Pages: 343-343

    • DOI

      10.3390/metabo12040343

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunohistochemical expression of osteopontin and collagens in choroid plexus of human brains2021

    • Author(s)
      Wakamatsu Keiji、Chiba Yoichi、Murakami Ryuta、Matsumoto Koichi、Miyai Yumi、Kawauchi Machi、Yanase Ken、Uemura Naoya、Ueno Masaki
    • Journal Title

      Neuropathology

      Volume: 42 Issue: 2 Pages: 117-125

    • DOI

      10.1111/neup.12791

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunoreactivity of receptor and transporters for lactate located in astrocytes and epithelial cells of choroid plexus of human brain2021

    • Author(s)
      Murakami Ryuta、Chiba Yoichi、Nishi Nozomu、Matsumoto Koichi、Wakamatsu Keiji、Yanase Ken、Uemura Naoya、Nonaka Wakako、Ueno Masaki
    • Journal Title

      Neuroscience Letters

      Volume: 741 Pages: 135479-135479

    • DOI

      10.1016/j.neulet.2020.135479

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polymorphic SERPINA3 prolongs oligomeric state of amyloid beta2021

    • Author(s)
      Akbor Maruf Mohammad、Kurosawa Nobuyuki、Nakayama Hiroki、Nakatani Ayumi、Tomobe Koji、Chiba Yoichi、Ueno Masaki、Tanaka Masashi、Nomura Yasuyuki、Isobe Masaharu
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 3 Pages: e0248027-e0248027

    • DOI

      10.1371/journal.pone.0248027

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sodium/glucose cotransporter 2 is expressed in choroid plexus epithelial cells and ependymal cells in human and mouse brains2020

    • Author(s)
      Chiba Yoichi、Sugiyama Yasunori、Nishi Nozomu、Nonaka Wakako、Murakami Ryuta、Ueno Masaki
    • Journal Title

      Neuropathology

      Volume: 40 Issue: 5 Pages: 482-491

    • DOI

      10.1111/neup.12665

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proteomic profile differentiating between mesial temporal lobe epilepsy with and without hippocampal sclerosis2020

    • Author(s)
      Furukawa Ayako、Kakita Akiyoshi、Chiba Yoichi、Kitaura Hiroki、Fujii Yukihiko、Fukuda Masafumi、Kameyama Shigeki、Shimada Atsuyoshi
    • Journal Title

      Epilepsy Research

      Volume: 168 Pages: 106502-106502

    • DOI

      10.1016/j.eplepsyres.2020.106502

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Glucose, Fructose, and Urate Transporters in the Choroid Plexus Epithelium2020

    • Author(s)
      Chiba Yoichi、Murakami Ryuta、Matsumoto Koichi、Wakamatsu Keiji、Nonaka Wakako、Uemura Naoya、Yanase Ken、Kamada Masaki、Ueno Masaki
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 19 Pages: 7230-7230

    • DOI

      10.3390/ijms21197230

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Retinal ganglion cell loss in kinesin-1 cargo Alcadein α deficient mice.2020

    • Author(s)
      Nakano Y, Hirooka K, Chiba Y, Ueno M, Ojima D, Hossain MR, Takahashi H, Yamamoto T, Kiuchi Y.
    • Journal Title

      Cell Death Dis.

      Volume: 11 Issue: 3 Pages: 166-166

    • DOI

      10.1038/s41419-020-2363-x

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunoreactivities for hepcidin, ferroportin, and hephaestin in astrocytes and choroid plexus epithelium of human brains2019

    • Author(s)
      Yanase Ken、Uemura Naoya、Chiba Yoichi、Murakami Ryuta、Fujihara Ryuji、Matsumoto Koichi、Shirakami Gotaro、Araki Nobukazu、Ueno Masaki
    • Journal Title

      Neuropathology

      Volume: 40 Issue: 1 Pages: 75-83

    • DOI

      10.1111/neup.12611

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neuroprotective activation of astrocytes by methylmercury exposure in the inferior colliculus2019

    • Author(s)
      Ishihara Yasuhiro、Itoh Kouichi、Oguro Ami、Chiba Yoichi、Ueno Masaki、Tsuji Mayumi、Vogel Christoph F. A.、Yamazaki Takeshi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 13899-13899

    • DOI

      10.1038/s41598-019-50377-9

    • NAID

      120006799369

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Partially hydrolyzed guar gum alleviates small intestinal mucosal damage after massive small bowel resection along with changes in the intestinal microbiota2019

    • Author(s)
      Fujii Takayuki、Chiba Yoichi、Nakayama-Imaohji Haruyuki、Onishi Shun、Tanaka Aya、Katami Hiroto、Kaji Tatsuru、Ieiri Satoshi、Miki Takanori、Ueno Masaki、Kuwahara Tomomi、Shimono Ryuichi
    • Journal Title

      Journal of Pediatric Surgery

      Volume: 54 Issue: 12 Pages: 2514-2519

    • DOI

      10.1016/j.jpedsurg.2019.08.048

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Disturbance of Intracerebral Fluid Clearance and Blood?Brain Barrier in Vascular Cognitive Impairment2019

    • Author(s)
      Ueno Masaki、Chiba Yoichi、Murakami Ryuta、Matsumoto Koichi、Fujihara Ryuji、Uemura Naoya、Yanase Ken、Kamada Masaki
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 20 Issue: 10 Pages: 2600-2600

    • DOI

      10.3390/ijms20102600

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 脈絡叢上皮細胞における糖輸送体の発現とその意義2021

    • Author(s)
      千葉 陽一
    • Organizer
      第11回脳血管・認知症学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脈絡叢上皮細胞と脳室上衣細胞におけるナトリウム・グルコース共輸送体2(SGLT2)の発現2020

    • Author(s)
      千葉陽一、杉山康憲、西望、野中和香子、河内真知、上野正樹
    • Organizer
      第109回日本病理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 脈絡叢上皮細胞と脳室上衣細胞におけるナトリウム・グルコース共輸送体2(SGLT2)の発現2020

    • Author(s)
      千葉陽一、杉山康憲、西望、野中和香子、村上龍太、上野正樹
    • Organizer
      第61回日本神経病理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 悪性症候群後に小脳失調症を呈した一症例のHSP免疫染色を含む病理学的検討2020

    • Author(s)
      太田仁士、吉井りつ、野中和香子、千葉陽一、上野正樹
    • Organizer
      第61回日本神経病学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 老化と認知症の神経病理:ヒトとSAMマウスの接点を考える2019

    • Author(s)
      千葉陽一
    • Organizer
      第34回老化促進モデルマウス(SAM)学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 悪性症候群後に発症し、20年以上の経過後死亡した小脳性運動失調症の一剖検例2019

    • Author(s)
      千葉陽一、吉井りつ、野中和香子、松川昭博、佐藤明、上野正樹
    • Organizer
      第47回臨床神経病理懇話会・第10回日本神経病理学会中国四国地方会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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