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

2010 Fiscal Year Annual Research Report

核輸送因子の新機能:細胞核ストレス応答メカニズム

Research Project

Project/Area Number 21247032
Research InstitutionOsaka University

Principal Investigator

米田 悦啓  大阪大学, 生命機能研究科, 教授 (80191667)

Keywords核輸送 / ストレス応答 / importin α / 細胞核 / マイクロアレイ / 遺伝子発現
Research Abstract

本研究課題では、核輸送因子importinαに焦点を当て、様々なストレスに応じて速やかに核内集積したimportinαの未知の生理的機能を明らかにするとともに、importinαを利用して細胞核が様々なストレスにどのように対応するのか、また、核内importinαがストレス応答においてどのような役割を果たすのかを明らかにし、細胞核ストレス応答のメカニズムを解明することを目的として研究を進めてきた。これまでの研究成果から、ストレス条件下で核内に集積したimportinαは、核をDNaseIで処理することで特異的に可溶化されることから、核内でクロマチンDNAと何らかの相互作用している可能性が示唆された。そこで、核内に集積したimportinαが遺伝子発現に何らかの影響を及ぼす可能性を考え、importinαが核内に蓄積した状態を再現させた細胞を用いて、発現の変動する遺伝子をマイクロアレイによって網羅的に解析した。その結果、複数の遺伝子発現に変動が見られた。その中で、顕著な発現上昇が見られた遺伝子であるSTK35(serine threonine kinase 35)という機能未知のキナーゼに着目した。クロマチン免疫沈降法を用いた解析から、ストレス条件下で確かにimportinαがSTK35遺伝子のプロモーター領域上に集積することが確認された。また、STK35遺伝子の発現をルシフェラーゼリポーターアッセイにより解析したところ、importinαにより発現が調節されていることがわかった。以上より、核内に集積したimportinαは、ある種の遺伝子のプロモーター配列に集積することで、遺伝子発現を調節している可能性を強く示唆することができ、importinαの新しい機能の発見につながる成果が得られた。

  • Research Products

    (36 results)

All 2011 2010

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (20 results)

  • [Journal Article] Efficient generation of stable induced pluripotent stem cells.2011

    • Author(s)
      Okada, M., Yoneda, Y.
    • Journal Title

      Biochim.Biophys.Acta-General Subjects

      Volume: 1810 Pages: 226-235

    • Peer Reviewed
  • [Journal Article] NUP358, a nucleoporin, functions as a key determinant of the nuclear pore complex structure during skeletal myogensis.2011

    • Author(s)
      Asally, M., et al.
    • Journal Title

      FEBS J

      Volume: 278 Pages: 610-621

    • Peer Reviewed
  • [Journal Article] Axotomy induces axonogenesis in hippocampal neurons by a mechanism dependent on importin β.2011

    • Author(s)
      Ohara, R., et al.
    • Journal Title

      Biochem.Biophys.Res.Commun

      Volume: 405 Pages: 697-702

    • Peer Reviewed
  • [Journal Article] Nuclear import of serum response factor in airway smooth mauscle.2011

    • Author(s)
      McConville, J.F., et al.
    • Journal Title

      Am J.Respir.Cell Mol.Biol

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Proteomic analysis of importin α-interacting proteins in adult mouse brain.2011

    • Author(s)
      Fukumoto, M., et al.
    • Journal Title

      Cell Struct.Funct

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Mice lacking Ran Binding Protein 1 are viable and show female infertility.2011

    • Author(s)
      Nagai, M., et al.
    • Journal Title

      FEBS Lett

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Generation and characterization of a monoclonal antibody against importin α7/NPI-2.2011

    • Author(s)
      Mizuguchi, C., et al.
    • Journal Title

      Hybridoma

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Targeted disruption of one of the importin α family members leads to female functional incompetence in delivery.2011

    • Author(s)
      Moriyama, T., et al.
    • Journal Title

      FEBS J

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Generation of rat monoclonal antibody specific for mouse importin α82011

    • Author(s)
      Moriyama, T., et al.
    • Journal Title

      Hybridoma

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Importin α acts as a negative regulator for Snail nuclear import.2011

    • Author(s)
      Sekimoto, T., et al.
    • Journal Title

      J.Biol.Chem

      Volume: (In press)

    • Peer Reviewed
  • [Journal Article] Two isoforms of Npap60 (Nup50) differentially regulate nuclear protein import.2010

    • Author(s)
      Ogawa, Y., et al.
    • Journal Title

      Mol.Biol.Cell

      Volume: 21 Pages: 630-638

    • Peer Reviewed
  • [Journal Article] The mobile FG nucleoporin Nup98 is a cofactor for Crm1-dependent protein export.2010

    • Author(s)
      Oka, M., et al.
    • Journal Title

      Mol.Biol.Cell

      Volume: 21 Pages: 1885-1896

    • Peer Reviewed
  • [Journal Article] Identification of importin α1 as a novel constituent of RNA stress granules.2010

    • Author(s)
      Fujimura, K., et al.
    • Journal Title

      Biochim.Biophys.Acta-Molecular Cell Research

      Volume: 1803 Pages: 865-871

    • Peer Reviewed
  • [Journal Article] Effective culture conditions for the induction of pluripotent stem cells.2010

    • Author(s)
      Okada, M., et al.
    • Journal Title

      Biochim.Biophys.Acta-General Subjects

      Volume: 1800 Pages: 956-963

    • Peer Reviewed
  • [Journal Article] Cytoplasmic polyadenylation element-like sequences are involved in dendritic targeting of BDNF mRNA in hippocampal neurons.2010

    • Author(s)
      Oe, S., Yoneda, Y.
    • Journal Title

      FEBS Lett

      Volume: 584 Pages: 3424-3430

    • Peer Reviewed
  • [Journal Article] Specific monoclonal antibody against the nuclear pore complex protein, Nup96.2010

    • Author(s)
      Mizuguchi, C., et al.
    • Journal Title

      Hybridoma

      Volume: 29 Pages: 551-553

    • Peer Reviewed
  • [Presentation] Nuclear transport machineries and cell function2011

    • Author(s)
      Yoneda, Y.
    • Organizer
      6th Asian-Pacific Organization for Cell Biology Congress
    • Place of Presentation
      Manila, Philippines(招待講演)
    • Year and Date
      20110225-20110228
  • [Presentation] Nuclear protein import machinery and cell differentiation2010

    • Author(s)
      Yoneda, Y.
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe(招待講演)
    • Year and Date
      20101207-20101210
  • [Presentation] Nuclear import of E47 and its partner transcription factors involves across talk between distinct nuclear import pathways2010

    • Author(s)
      Mehmood, R., Yashuhara, N., Yoneda, Y.
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe
    • Year and Date
      20101207-20101210
  • [Presentation] Targeted disruption of one of the importin α family members leads to female functional incompetence in delivery2010

    • Author(s)
      Moriyama, T., Nagai, M., Oka, M., Yoneda, Y.
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe
    • Year and Date
      20101207-20101210
  • [Presentation] 低分子量GTPase Ranが関与する細胞老化制御2010

    • Author(s)
      永井理博、安田善也、米田悦啓
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe
    • Year and Date
      20101207-10
  • [Presentation] Nucleo-cytoplasmic shuttling of Oct-42010

    • Author(s)
      岡正啓、盛山哲嗣、浅利宗弘、米田悦啓
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe
    • Year and Date
      20101207-10
  • [Presentation] pre-microRNA核外輸送複合体のX線結晶構造解析2010

    • Author(s)
      山下栄樹、慈幸千真理、李守宰、柴田理志、片平じゅん、中川敦史、米田悦啓、月原冨武
    • Organizer
      BMB2010
    • Place of Presentation
      Kobe
    • Year and Date
      20101207-10
  • [Presentation] Nucleocytoplasmic transport machineries and cell functions2010

    • Author(s)
      Yoneda, Y.
    • Organizer
      Association of Pacific Rim Universities (APRU) Research Symposium on the Interface between Molecular Biology and Nano-Biology
    • Place of Presentation
      Kyoto(招待講演)
    • Year and Date
      20101124-20101126
  • [Presentation] Nucleocytoplasmic transport and cell differentiation2010

    • Author(s)
      Yoneda, Y.
    • Organizer
      OzBio2010, 12th IUBMB and 21st FAOBMB
    • Place of Presentation
      Melbourne, Australia(招待講演)
    • Year and Date
      20100926-20101001
  • [Presentation] Nuclear-localized importin alpha regulates gene expression in mammalian spermatogenesis2010

    • Author(s)
      Miyamoto, Y., Yasuda, Y., Yamashiro, T., Nagai, M., Masui, A., Yoneda, Y., Jans, D.A., Loveland, K.
    • Organizer
      OzBio2010, 12th IUBMB and 21st FAOBMB
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      20100926-20101001
  • [Presentation] 核-細胞質間蛋白質輸送から見た高次生命機能2010

    • Author(s)
      米田悦啓
    • Organizer
      第69回日本癌学会学術総会
    • Place of Presentation
      大阪(招待講演)
    • Year and Date
      20100922-20100924
  • [Presentation] Differential nuclear import is a novel regulatory mechanism for maintaining pluripotency of ES cells2010

    • Author(s)
      Yasuhara, N., Yamagishi, R., Arai, Y., Yanagida, T, Kaneko, H., Yoneda, Y.
    • Organizer
      第62回日本細胞生物学会大会
    • Place of Presentation
      大阪
    • Year and Date
      20100519-20100521
  • [Presentation] The modulation in glycosylation state of nucleoporins in cell differentiation2010

    • Author(s)
      Mizuguchi, C., Yasuhara, N., Asally, M., Yoneda, Y.
    • Organizer
      第62回日本細胞生物学会大会
    • Place of Presentation
      大阪
    • Year and Date
      20100519-20100521
  • [Presentation] Transcriptional regulation of importin alpha1 in mouse embryonic stem cells2010

    • Author(s)
      Kamikawa, Y., Yasuhara, N., Yoneda, Y.
    • Organizer
      第62回日本細胞生物学会大会
    • Place of Presentation
      大阪
    • Year and Date
      20100519-20100521
  • [Presentation] Targeted disruption of the nuclear import adaptor, importin α5 leads to female genital hypoplasia2010

    • Author(s)
      Moriyama, T., Nagai, M., Oka, M., Yoneda, Y.
    • Organizer
      第62回日本細胞生物学会大会
    • Place of Presentation
      大阪
    • Year and Date
      20100519-20100521
  • [Presentation] 核一細胞質間分子輸送機構から見た高次生命機能制御2010

    • Author(s)
      米田悦啓
    • Organizer
      第2回シグナルネットワーク研究会
    • Place of Presentation
      大阪(招待講演)
    • Year and Date
      20100514-20100515
  • [Presentation] Nucleocytoplasmic protein transport and cell differentiation2010

    • Author(s)
      Yoneda, Y.
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      Osaka(招待講演)
    • Year and Date
      20100412-20100413
  • [Presentation] Transcriptional regulation of importin-α1 in embryonic stem cells2010

    • Author(s)
      Kamikawa, Y., Yasuhara, N., Yoneda, Y.
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      Osaka
    • Year and Date
      20100412-20100413
  • [Presentation] Targeted disruption of the nuclear import adaptor, importin α5, leads to female genital hypoplasia2010

    • Author(s)
      Moriyama, T., Nagai, M., Oka, M, Yoneda, Y.
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      Osaka
    • Year and Date
      20100412-20100413
  • [Presentation] The role of the nucleocytoplasmic transport system in cell differentiation2010

    • Author(s)
      Yasuhara, N., Yoneda, Y.
    • Organizer
      International Symposium on Organelle Network : Interface among Infection-Immunity, Cell Biology and Glycobiology
    • Place of Presentation
      Osaka
    • Year and Date
      20100412-20100413

URL: 

Published: 2012-07-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi