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代謝的ポテンシャル依存的化学ゆらぎによるミクログリアの毒性/保護性の変動

Research Project

Project/Area Number 20650055
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Neurochemistry/Neuropharmacology
Research InstitutionNagoya University

Principal Investigator

澤田 誠  Nagoya University, 環境医学研究所, 教授 (10187297)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2009: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2008: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywords可視化 / 脳・神経 / ミクログリア / 化学ゆらぎ / 高速度撮影
Research Abstract

ミクログリアの神経保護作用-毒性転換の調節メカニズムとして活性酸素酸性系の電子供与体となる
NADPHの化学ゆらぎが大きく関与している可能性を鑑み、高速度カメラを装着した蛍光顕微鏡で
NADPHの産生濃度のゆらぎ(代謝ポテンシャルの変化)と活性酸素産生を可視化して調べることを目的として研究を行った。本年度はその二年目として前年度に行った種々の条件でNADPH自家蛍光変化に連動しておこる活性酸素産生を培地にハイドロエチジン(dihydrotetramethylrozamine)を添加して発光させ撮像した。貪食現象はLAMP2-GFPの蛍光を観察して行った。次に、活性酸素産生が外来遺伝子導入により活性酸素産生が増大したミクログリア株(J.Biol.Cel.277 : 42136, 2002)におけるNADPH化学的ゆらぎの計測と貪食システム制御について調べた。この細胞ではLPSやIFNなどの活性化剤で処理する事無く大きなゆらぎが生じている事がわかった。上の結果から、ミクログリアの活性化や活性酸素産生は代謝的ポテンシャルのゆらぎの大きさと相関している事が明らかとなった。今回の研究では種々の活性化を引き起こす処理(薬剤処理や遺伝子導入)が代謝的ポテンシャルのゆらぎそのものを調節してミクログリアの活性化状態を増大させたのか、両者が独立して同時に起こっているかについての識別ができなかったが、少なくとも両者は相関して駆動されている事が推定された。今後、遺伝子改変動物由来のミクログリア等を用いてさらに解析していく予定である。

Report

(2 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (39 results)

All 2010 2009 2008

All Journal Article (18 results) (of which Peer Reviewed: 16 results) Presentation (19 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Two activated stages of microglia and PET imaging of peripheral benzodiazepine receptors with[(11)C]PK11195 in rats2010

    • Author(s)
      ITO F, TOYAMA H, KUDO G, SUZUKI H, HATANO K, ICHISE M, KATADA K, ITO K, SAWADA M
    • Journal Title

      Annals of Nuclear Medecine 24(3)

      Pages: 163-169

    • NAID

      10026390913

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neuroprotective and Neurotoxic Phenotypes of Activated Microglia in Neonatal Mice with Respective MPTP- and Ethanol-Induced Brain Injury2010

    • Author(s)
      SAWADA H, SUZUKI H, NAGATSU T, SAWADA M
    • Journal Title

      Neuro-degenerative Diseases 7(1-3)

      Pages: 64-67

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantum dots labeling using octa-arginine peptides for imaging of adipose tissue-derived stem cells2010

    • Author(s)
      YUKAWA H, KAGAMI Y, WATANABE M, OISI K, MIYAMOTO Y, OKAMOTO Y, TOKESHI M, KAJI N, NOGUCHI H, ONO K, SAWADA M, BABA Y, HAMAJIMA N, HAYASHI S
    • Journal Title

      Biomaterials 31(14)

      Pages: 4094-4103

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Delayed neural damage is induced by iNOS-expressing microglia in a brain injury model2010

    • Author(s)
      ONO K, SUZUKI H, SAWADAM
    • Journal Title

      Neuroscience Letters 473(2)

      Pages: 146-150

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature dependence of proton permeation through a voltage-gatedproton channel.2009

    • Author(s)
      KUNO M, ANDO H, MORIHATA H, SAKAI H, MORI H, SAWADA M, OIKI S
    • Journal Title

      The Journal of General Physiology 134(3)

      Pages: 191-205

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interleukin-6 induces prostaglandin E2 synthesis in mouse astrocytes2009

    • Author(s)
      CHIKUMA T, YOSHIMOTO T, OHBA M, SAWADA M, KATO T, SAKAMOTO T, HIYAMA Y, HOJO H
    • Journal Title

      Journal of Molecular Neuroscience 39(1-2)

      Pages: 175-184

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ferritin reporter used for gene expression imaging by magnetic resonance2009

    • Author(s)
      ONO K, FUMA K, TABATA K, SAWADA M
    • Journal Title

      Biochemical and Biophysical Research Communications 388(3)

      Pages: 589-594

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article]2009

    • Author(s)
      澤田誠
    • Journal Title

      炎症 : パーキンソン病-基礎・臨床研究のアップデート-(日本臨牀)

      Pages: 126-130

    • Related Report
      2009 Annual Research Report
  • [Journal Article]2009

    • Author(s)
      澤田誠
    • Journal Title

      家族性パーキンソン病は孤発性パーキンソン病のモデルになるか?「No」の立場からFrontiers in Parkinson Disease(メディカルレビュー社)

      Pages: 20-23

    • Related Report
      2009 Annual Research Report
  • [Journal Article] L-dopa therapy for Parkinson's disease : Past present, and future2009

    • Author(s)
      NAGATSU T, SAWADA M
    • Journal Title

      Parkinsonism & Related Disorders 15

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neuroprotective and toxic changes in microglia in neurodegenerative disease2009

    • Author(s)
      SAWADA M
    • Journal Title

      Parkinsonism & Related Disorders 15

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Marked induction of inducible nitric oxide synthase and tumor necrosis factor-alpha in rat CD40 (+) microglia by comparison to CD40 (-) microglia2009

    • Author(s)
      KAWAHARA K, YOSHIDA A, KOGA K, YOKOO S, KUNIYASU A, GOTOH T, SAWADA M, NAKAYAMA H
    • Journal Title

      Journal of Neuroimmunology 208(1-2)

      Pages: 70-79

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A link between stress and depression : shifts in the balance between the kynurenine and serotonin pathways of tryptophan metabolism and the etiologyand pathophysiology of depression2008

    • Author(s)
      MIURA H, OZAKI N, SAWADA M, ISOBE K, OHTA T, NAGATSU T
    • Journal Title

      Stress 11(3)

      Pages: 198-209

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In vivo imaging of microglial activation using a peripheral benzodiazepine recept or ligand : [(11)C] PK-11195 and animal PET following ethanol injury in rat striatum2008

    • Author(s)
      TOYAMA H, HATANOK, SUZUKI, H, ICHISE M, MOMOSAKI S, KUDO G, ITOF, KATO T, YAMAGUCHI H, KATADA K, SAWADA M, ITOK
    • Journal Title

      Annals of Nuclear Medicine 22(5)

      Pages: 417-424

    • NAID

      10021281455

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Imaging of Peripheral Benzodiazepine Receptor Expression as Biomarkers of Detrimental versus Beneficial Glial Responses in Mouse Models of Alzheimer'sand other CNS Pathologies2008

    • Author(s)
      JI Bin, MAEDA J, SAWADA M, ONO M, OKAUCHI T, JNAJI M, ZHANG Ming-Rong, SUZUKI K, ANDO K, STAUFENBIEL Matthias, TROLANOWSKI John Q, LEE Virginia M. Y., HIGUCHI M, SUHARA T
    • Journal Title

      Journal of Neuroscience 28(47)

      Pages: 12255-12267

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increase in hemokinin-1 mRNA in the spinal cord during the early phase of a neuropathic pain state2008

    • Author(s)
      MATSUMURA T, SAKAI A, NAGANO M, SAWADA M, SUZUKI H, UMINO M, SUZUKI H
    • Journal Title

      British Journal of Pharmacology 155(5)

      Pages: 767-774

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interleukin-4-induced Selective Clearance of Oligomeric b-Amyloid Peptide by Rat Primary Type-2 Microglial2008

    • Author(s)
      SHMIZU E, KAWAHARA K, KA JIZONO M, SAWADA M, NAKAYAMA H
    • Journal Title

      Journal of Immunology 181(9)

      Pages: 6503-6513

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Blockade of microglial glutamate release protects against ischemic brain injury2008

    • Author(s)
      TAKEUCHI H, SHIJIE J, SUZUKI H, DOI Y, JIANFENG Liang, KAWANOKUCHI J, MEUNO T, SAWADA, SUZUMURA A
    • Journal Title

      Experimental Neurology 214(1)

      Pages: 144-146

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] ミクログリアの毒性転換のIn vivoイメージングと脳の標的化DDS技術2009

    • Author(s)
      澤田誠
    • Organizer
      第3回アルツハイマー病の早期診断・治療・予防法の開発研究会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-12-22
    • Related Report
      2009 Annual Research Report
  • [Presentation] 遺伝子発現変化を核磁気共鳴イメージングで可視化する方法の開発2009

    • Author(s)
      小野健治, 夫馬和也、田畑香織、澤田誠
    • Organizer
      日本生化学会第82回大会
    • Place of Presentation
      神戸
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] インターロイキン4で活性化したラット初代培養2型ミクログリアによるオリゴマー状アミロイドβペプチド_<1-42>選択的クリアランス2009

    • Author(s)
      川原浩一、清水英介, 鍛治園誠、澤田誠、中山仁
    • Organizer
      日本生化学会第82回大会
    • Place of Presentation
      神戸
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] Protective effects of minocycline on osmotic demyelination syndrome in rats2009

    • Author(s)
      SUZUKI H, SUGIMURA Y, IWAMA S, SUZUKI H, ARIMA H, SAWADA M, OISO Y
    • Organizer
      Neuroscience 2009
    • Place of Presentation
      Chicago
    • Year and Date
      2009-10-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] ミクログリアの毒性転換のIn vivoイメージング2009

    • Author(s)
      澤田誠
    • Organizer
      第7回神経科学研究会
    • Place of Presentation
      東京
    • Year and Date
      2009-09-19
    • Related Report
      2009 Annual Research Report
  • [Presentation] The differing pathological effects of nitric oxide synthase isoforms in osmotic demyelination syndrome in rats2009

    • Author(s)
      椙村益久、村瀬孝司、竹藤聖子、高木博史、岩間信太郎、鈴木陽之、高岸芳子、有馬寛、澤田誠、大磯ユタカ、村田善晴
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-09-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] Protective roles of brain-migrated immature bone marrow cells against NO-dependent neurotoxicity in a brain injury model2009

    • Author(s)
      小野健治、山本奈穂、鈴木弘美、澤田誠
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-09-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] Neuroprotective or neurotoxic phenotypes of activated microglia in neonatalmice in neuronal injuries2009

    • Author(s)
      澤田浩秀、鈴木弘美、永津俊治, 澤田誠
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋
    • Year and Date
      2009-09-16
    • Related Report
      2009 Annual Research Report
  • [Presentation] Minocycline prevents osmotic demyelination by inhibiting the activation of microglia in rats2009

    • Author(s)
      SUZUKI H, SUGIMURA Y, IWAMA S, SUZUKI H, ARIMA H, SAWADA M, OISO Y
    • Organizer
      第8回国際下垂体後葉ホルモン学会
    • Place of Presentation
      北九州
    • Year and Date
      2009-09-07
    • Related Report
      2009 Annual Research Report
  • [Presentation] SIADHモデルラットにおいてミノサイクリンは浸透圧性脱随の発症・進展を防止する2009

    • Author(s)
      鈴木陽之、椙村益久、岩間信太郎、鈴木弘美、有馬寛、澤田誠、大磯ユタカ
    • Organizer
      第36回日本神経内分泌学会学術集会
    • Place of Presentation
      北九州
    • Year and Date
      2009-09-04
    • Related Report
      2009 Annual Research Report
  • [Presentation] シンクロトロン光を用いた細胞制御脳研究への道2009

    • Author(s)
      澤田誠
    • Organizer
      第16回「先端技術と原子力」シンポジウム
    • Place of Presentation
      名古屋
    • Year and Date
      2009-08-20
    • Related Report
      2009 Annual Research Report
  • [Presentation] A practical preparation of[18F]FEPPA using a protic solvent system2009

    • Author(s)
      HATANO K, TOYAMA H, YAMADA T, KUDO G, SUZUKI H, ICHISE M, WILSON A.A., SAWADA M, ITO K
    • Organizer
      18^<th> International Symposium on Radiopharmaceutical Sciences
    • Place of Presentation
      Edmonton, CANADA
    • Year and Date
      2009-07-13
    • Related Report
      2009 Annual Research Report
  • [Presentation] Enhancement of glioma foraiation and growth by brain-migrated immature bone marrow cells2008

    • Author(s)
      ONO K, FURUKAWA T, SUZUKI H, SATO E, SAWADA M
    • Organizer
      第81回日本生化学会大会第31回日本分子生物学会年会合同大会(BMB2008)
    • Place of Presentation
      神戸
    • Year and Date
      2008-12-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] ミクログリアイメージングの意義・基礎から臨床へ2008

    • Author(s)
      澤田誠
    • Organizer
      第24回ブレイン・ファンクション・イメージング・カンファレンス
    • Place of Presentation
      神戸
    • Year and Date
      2008-09-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] 脳損傷モデルマウスにおける脳移行性骨髄細胞の神経保護効果2008

    • Author(s)
      小野健治, 山本奈穂, 鈴木弘美, 佐藤愛美, 澤田誠
    • Organizer
      第51回神経化学会大会
    • Place of Presentation
      富山
    • Year and Date
      2008-09-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] 脳移行性骨髄細胞の脳腫瘍形成・増殖に対する促進的関与2008

    • Author(s)
      小野健治, 古川大記, 鈴木弘美, 佐藤愛美, 澤田誠
    • Organizer
      第31回神経科学学会
    • Place of Presentation
      東京
    • Year and Date
      2008-07-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] 血液脳関門を壊さない脳の標的化DDS技術2008

    • Author(s)
      澤田誠
    • Organizer
      第16回群馬遺伝子診療研究会
    • Place of Presentation
      前橋
    • Year and Date
      2008-06-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] 新規抹消性ベンゾジアゼピン受容体製剤 : ; {18F}FEPPA PETとパーキンソン病モデルラツトを用いた活性化ミクロクリアのイメージング2008

    • Author(s)
      鈴木弘美, 外山宏, ?野健太郎, 工藤元, 伊藤文隆, 小野健治, 加藤隆司, Alan Wilson, 伊藤健吾, 市瀬正則, 澤田誠
    • Organizer
      第3回日本分子イメージング学会
    • Place of Presentation
      埼玉
    • Year and Date
      2008-05-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 血液脳関門を壊さない脳標的化技術 : 脳疾患の新規治療2008

    • Author(s)
      澤田誠
    • Organizer
      医薬ライセンシング協会講演第200回記念講演会
    • Place of Presentation
      東京
    • Year and Date
      2008-05-21
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 脳移行型融合ポリペプチド2009

    • Inventor(s)
      澤田誠, 他
    • Industrial Property Rights Holder
      (株)プロテウスサイエンス
    • Filing Date
      2009-12-04
    • Related Report
      2009 Annual Research Report
  • [Patent(Industrial Property Rights)] 株化ミクログリア2009

    • Inventor(s)
      澤田誠
    • Industrial Property Rights Holder
      (独)科学技術振興機構
    • Filing Date
      2009-10-09
    • Related Report
      2009 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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