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低分子量G蛋白質ARF6の細胞の形づくりへの普遍的機能関与と分子機構の解明

Research Project

Project/Area Number 21659049
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field General anatomy (including Histology/Embryology)
Research InstitutionKitasato University

Principal Investigator

阪上 洋行  北里大学, 医学部, 教授 (90261528)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2010: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2009: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords低分子量G蛋白質 / 樹状突起 / 細胞骨格 / シナプス可塑性 / ゴルジ装置 / RNA干渉法 / 細胞接着分子 / 神経可塑性 / シナプス / 海馬 / シナプス後肥厚部
Research Abstract

本研究では、ARF6による細胞の形づくりへの機能関与とその分子機構の解明のため、活性型ARF6遺伝子を餌にして酵母ツーハイブリット法より脳cDNAライブラリーをスクリーニングしARF6の下流効果分子の同定を試みた。その結果、JIP3(JNK-interacting protein),FIP3/4(a family of Rabll-interacting protein),GGA(Golgi-1ocalized,γadaptin ear-containing ARF-binding protein)などの既報のARF6結合蛋白質とともに、カドヘリン-カテニンと複合体を形成するミオシンVIIAの結合蛋白質であるVezatinや密着結合関連蛋白質として報告されたPilt(protein incorporated later into tight junctions)などの新規のARF6結合蛋白質候補分子の単離に成功した。そのうち、Vezatinは、in situハイブリダイゼーション法による遺伝子発現解析により、胎児期より神経系に豊富に発現し、成熟期脳では海馬に強く発現することを明らかにし、海馬初代培養系を用いた過剰発現や発現抑制実験系により樹状突起の形成に関与することを見出した。以上の所見よりARF6の下流分子として機能する可能性が強く考えられ、その成果を報告した(Neuroscience Research 2010)。また、Piltに関しては、試験管レベルでは活性型ARF6に結合すること、NIH3T3細胞やHeLa細胞のトランスゴルジ網や細胞内小胞に局在すること、また、RNA干渉法を用いた発現抑制により、ゴルジ装置の断片化が生じることを見出し、現在、Piltによるゴルジ装置の構造維持の機構に関して詳細な検討を継続している。なお、本成果の一部は平成23年3月の第116回日本解剖学会総会にて報告する予定である。

Report

(2 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (26 results)

All 2011 2010 2009 Other

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (5 results) Remarks (2 results)

  • [Journal Article] SynArfGEF is a guanine nucleotide exchage factor for Arf6 and localizes preferentially at post-synaptic specialization of inhibitory synapses.2011

    • Author(s)
      Fukaya M, Kamata A, Hara Y, Tamaki H, Katsumata O, Ito N, Takeda S, Hata Y, Suzuki T, Watanabe M, Harvey RJ, Sakagami H.
    • Journal Title

      Journal of Neurochemistry

      Volume: 印刷中

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Less invasive and less technically demanding decompressive proce dure for lumbar spinal stenosis-appropriate for general orthopaedic surgeons?2011

    • Author(s)
      Takaso M, Nakazawa T, Imura T, Fukushima K, Ueno M, Saito W, Shintani R, Sakagami H, et al.
    • Journal Title

      International Orthopaedics

      Volume: 35 Pages: 867-873

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vezatin, a potential target for ADP-ribosylation factor 6, regulates the dendritic formation of hippocampal neurons.2010

    • Author(s)
      Sanda M, Ohara N, Kamata A, Hara Y, Tamaki H, Sukegawa J, Yanagisawa T, Fukunaga K, Kondo H, Sakagami H.
    • Journal Title

      Neurosci.Research

      Volume: 67 Pages: 126-136

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive behavioral analysis of calcium/calmodulin-dependent protein kinase IV knockout mice.2010

    • Author(s)
      Takao K, Tanda K, Nakamura K, Kasahara J, Nakao K, Katsuki M, Nakanishi K, Yamasaki N, Toyama K, Adachi M, Umeda M, Araki T, Fukunaga K, Kondo H, Sakagami H, Miyakawa T.
    • Journal Title

      PLoS ONE

      Volume: 5

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] USP9x-mediated deubiquitination of EFA6 regulates de novo tight junction assembly.2010

    • Author(s)
      Theard D, Labarrade F, Partisani M, Milanini J, Sakagami H, et al.
    • Journal Title

      EMBO Journal

      Volume: 29 Pages: 1499-1509

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Involvement of the serum response factor coactivator megakaryoblastic leukemia (MKL) in the activin-regulated dendritic complexity of rat cortical neurons.2010

    • Author(s)
      Ishikawa M, Nishijima N, Shiota J, Sakagami H, et al.
    • Journal Title

      Journal of Biological Chemistry

      Volume: 285 Pages: 32734-32743

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification and characterization of PRG-1 as a neuronal calmodulin-binding protein.2010

    • Author(s)
      Tokumitsu H, Hatano N, Tsuchiya M, Yurimoto S, Fujimoto T, Ohara N, Kobayashi R, Sakagami H.
    • Journal Title

      Biochem Journal

      Volume: 43 Pages: 81-91

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxidative stress in mature rat testis and its developmental changes2010

    • Author(s)
      Sakai Y, Aminaka M, Takata A, Kudou Y, Yamauchi H, Aizawa Y, Sakagami H.
    • Journal Title

      Dev.Growth Differ.

      Volume: 52 Pages: 657-663

    • NAID

      10027566227

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of erythropoietin on angiogenesis with the increased adhesion of platelets to the microvessels in the hind-limb ischemia model in mice.2010

    • Author(s)
      Kato S, Amano H, Ito Y, Eshima K, Aoyama N, Tamaki H, Sakagami H, et al.
    • Journal Title

      J Pharmacol Sci.

      Volume: 112 Pages: 167-175

    • NAID

      10029888784

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] COX-2 and Prostaglandin EP3/EP4 Signaling Regulate the Tumor Stromal Proangiogenic Microenvironment via CXCL12-CXCR4 Chemokine Systems.2010

    • Author(s)
      Katoh H, Hosono K, Ito Y, Suzuki T, Ogawa Y, Kubo H, Kamata H, Mishima T, Tamaki H, Sakagami H, et al.
    • Journal Title

      American Journal of Pathology

      Volume: 176 Pages: 1469-1483

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Host prostaglandin EP3 receptor signaling relevant to tumor-associated lymphangiogenesis.2010

    • Author(s)
      Kubo H, Hosono K, Suzuki T, Ogawa Y, Kato H, Kamata H, Ito Y, Amano H, Kato T, Sakagami H, et.Al.
    • Journal Title

      Biomed Pharmacotherapy

      Volume: 64 Pages: 101-106

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Surgical management of severe scoliosis with high risk pulmonary dysfunction in Duchene muscular dystrophy : patient function, quality of life and satisfaction.2010

    • Author(s)
      Takaso M, Nakazawa T, Imura T, Okada T, Fukushima K, Ueno M, Takahira N, Takahashi K, Yamazaki M, Ohtori S, Okamoto H, Okutomi T, Okamato M, Masaki T, Uchinuma E, Sakagami H
    • Journal Title

      International Orthopaedics

      Volume: 34 Pages: 695-702

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comprehensive behavioral analysis of calcium/calmodulin-dependent protein kinase IV knockout mice.2010

    • Author(s)
      Takao K, Tanda K, Nakamura K, Kasahara J, Nakao K, Katsuki M, Nakanishi K, Yamasaki N, Toyama K, Adachi M, Umeda M, Araki T, Fukunaga K, Kondo H, Sakagami H, Miyakawa T.
    • Journal Title

      PLoS ONE (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vezatin, a potential target for ADP-ribosylation factor 6, regulates the dendritic formation of hippocampal neurons.2010

    • Author(s)
      Sanda M, Ohara N, Kamata A, Hara Y, Tamaki H, Sukegawa J, Yanagisawa T, Fukunaga K, Kondo H, Sakagami H.
    • Journal Title

      Neuroscience Research (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] COX-2 and Prostaglandin EP3/EP4 Signaling Regulate the Tumor Stromal Proang iogenic Microenvironment via CXCL12-CXCR4 Chemokine Systems.2010

    • Author(s)
      Katoh H, Hosono K, Ito Y, Suzuki T, Ogawa Y, Kubo H, Kamata H, Mishima T, Tamaki H, Sakagami H, et al.
    • Journal Title

      Am J Pathol. (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fluorescent labeling of both GABAergic and glycinergic neurons in VGAT-Venus transgenic mouse.2009

    • Author(s)
      Wang Y, Kakizaki T, Sakagami H, Saito K, Ebihara S, Kato M, Hirabayashi M, Saito Y, Furuya N, Yanagawa Y.
    • Journal Title

      Neuroscience 164

      Pages: 1031-1043

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kinase-dead knock-in mouse reveals an essential role of kinase activity of Ca^<2+>/c almodulin-dependent protein kinase IIalpha in dendritic spine enlargement, long-term potentiation, and learning.2009

    • Author(s)
      Yamagata Y, Kobayashi S, Umeda T, Inoue A, Sakagami H, et al.
    • Journal Title

      Journal of Neuroscience 29

      Pages: 7607-7618

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Localization of EFA6A, a guanine nucleotide exchange factor for ARF6, in spermatogenic cells of testes of adult mice.2009

    • Author(s)
      Suzuki R, Saino-Saito S, Sakagami H, Toshimori K, Kondo H
    • Journal Title

      J Mol Histol 40

      Pages: 77-80

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] IQ-ArfGEF/BRAG1 is associated with synaptic ribbons in the mouse retina.2009

    • Author(s)
      Katsumata O, Ohara N, Tamaki H, Niimura T, Naganuma H, Watanabe M, Sakagami H.
    • Journal Title

      European Journal of Neuroscience 30

      Pages: 1509-1516

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 低分子量G蛋白質ARF6特異的グアニンヌクレオチド交換因子GEP100/BRAG2の神経系における発現と樹状突起形成への機能関与2010

    • Author(s)
      阪上洋行、小原直樹
    • Organizer
      第33回日本神経科学大会
    • Place of Presentation
      神戸コンベンションセンター、神戸市、兵庫県
    • Year and Date
      2010-09-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] 低分子量Gタンパク質Arfの活性化制御因子synArfGEFの抑制性シナプス局在の分子機構2010

    • Author(s)
      阪上洋行
    • Organizer
      第115回日本解剖学総会・全国学術集会
    • Place of Presentation
      岩手医科大学(岩手)
    • Year and Date
      2010-03-29
    • Related Report
      2009 Annual Research Report
  • [Presentation] ARF6の新たな相互結合タンパク質としてのVezatinの神経樹状突起形成における役割2009

    • Author(s)
      阪上洋行、三田将司
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋国際会議場(愛知)
    • Year and Date
      2009-09-18
    • Related Report
      2009 Annual Research Report
  • [Presentation] Ca2+/カルモデュリン依存性プロテインキナーゼIIα活性は海馬シナプス可塑性の構造学的・機能学的・行動学的発現に不可欠2009

    • Author(s)
      山肩葉子、小林静香, 他13名
    • Organizer
      第32回日本神経科学大会
    • Place of Presentation
      名古屋国際会議場(愛知)
    • Year and Date
      2009-09-17
    • Related Report
      2009 Annual Research Report
  • [Presentation] Piltはゴルジ装置に局在し構造維持に関与する

    • Author(s)
      阪上洋行、勝又修、玉木英明
    • Organizer
      第116回日本解剖学会総会
    • Place of Presentation
      (東北地方太平洋沖地震によりJournal of Physiological Sciences誌による誌上開催)
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.med.kitasato-u.ac.jp/~sakagami/

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.med.kitasato-u.ac.jp/~sakagami/index.php?RecentChanges

    • Related Report
      2009 Annual Research Report

URL: 

Published: 2009-04-01   Modified: 2016-04-21  

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