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Study of pH homeostasis in acidic organelles

Research Project

Project/Area Number 23370060
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional biochemistry
Research InstitutionOsaka University

Principal Investigator

MAEDA YUSUKE  大阪大学, 微生物病研究所, 准教授 (00294124)

Co-Investigator(Renkei-kenkyūsha) KANZAWA Noriyuki  大阪大学, 微生物病研究所, 特任助教 (40452461)
Project Period (FY) 2011-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥20,540,000 (Direct Cost: ¥15,800,000、Indirect Cost: ¥4,740,000)
Fiscal Year 2013: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2011: ¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Keywordsゴルジ装置 / pH / コレステロール / 糖鎖修飾 / 輸送 / 膜コンタクト部位 / GPHR / ホメオスタシス / ゴルジ / 層板顆粒 / ホメオスターシス
Research Abstract

By analyzing GPHR-deficient mouse embryonic fibroblast (MEF) in which major pathology is a raised Golgi pH, we clarified 1) impaired glycosylation is caused by reduced activities of nucleotide-sugar transporter and aberrant complex formation of glycosyltransferases but not by mislocalization of glycosyltransferases, 2) both transcriptions of several genes involved in cholesterol biosynthesis and the amount of intracellular cholesterol are reduced in GPHR-deficient MEF and it is most likely that the phenotype is caused by abnormal cholesterol distribution due to the impaired cholesterol trafficking through the membrane contact site between the ER and Golgi apparatus, and 3) skin basal cell-specific gene targeting revealed that GPHR is essential for the homeostasis of the epidermis including the formation of lamellar bodies and for the barrier function.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (25 results)

All 2014 2013 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (16 results) Book (1 results) Remarks (5 results)

  • [Journal Article] Significance of GPI-anchored protein enrichment in lipid rafts for the control of autoimmunity2013

    • Author(s)
      Wang, Y., Y. Murakami, T. Yasui, S. Wakana, H. Kikutani, T. Kinoshita and Y. Maeda
    • Journal Title

      J. Biol. Chem

      Volume: 288 Issue: 35 Pages: 25490-25499

    • DOI

      10.1074/jbc.m113.492611

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Implication of lipid moiety in oligomerization and immunoreactivities of GPI-anchored proteins.2013

    • Author(s)
      Seong, J.
    • Journal Title

      J. Lipid Res.

      Volume: 54 Issue: 4 Pages: 1077-1091

    • DOI

      10.1194/jlr.m034421

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] GPHR-dependent functions of the Golgi apparatus are essential for the formation of lamellar granules and the skin2012

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

      J Invest Dermatol

      Volume: 132 Issue: 8 Pages: 2019-2025

    • DOI

      10.1038/jid.2012.100

    • Related Report
      2013 Final Research Report 2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] 膜コンタクト部位の可視化および定量化による細胞内コレステロール輸送の調節機構の解明(仮タイトル)2014

    • Author(s)
      前田裕輔, 奥崎大介, 木下タロウ
    • Organizer
      第87回日本生化学会大会シンポジウム
    • Place of Presentation
      京都
    • Year and Date
      2014-10-15
    • Related Report
      2013 Final Research Report
  • [Presentation] ゴルジ装置の酸性環境によるコレステロール代謝の調節機構の解明2014

    • Author(s)
      前田裕輔
    • Organizer
      第25回尾の医学研究財団研究成果発表会
    • Place of Presentation
      大阪
    • Year and Date
      2014-06-07
    • Related Report
      2013 Final Research Report
  • [Presentation] ゴルジ装置の酸性環境による細胞内コレステロールの生合成・輸送の調節2013

    • Author(s)
      前田裕輔, 奥崎大介, 木下タロウ
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2013-12-05
    • Related Report
      2013 Final Research Report
  • [Presentation] タンパク質への付加後に起こるGPIアンカーの構造変化の機能的意義2013

    • Author(s)
      木下タロウ , 前田裕輔, 藤田盛久
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2013-12-04
    • Related Report
      2013 Final Research Report
  • [Presentation] 木下タロウ哺乳動物のアルキルアシル型GPIアンカーの生合成機構2013

    • Author(s)
      神澤範行, 村上良子, 前田裕輔
    • Organizer
      第86回日本生化学会大会
    • Place of Presentation
      横浜
    • Year and Date
      2013-09-13
    • Related Report
      2013 Final Research Report
  • [Presentation] Implications of lipid moiety in oligomerization and immunoreactivities of GPI-anchored poteins2013

    • Author(s)
      Jihyoun Seong, Yatao Wang, Taroh Kinoshita, Yusuke Maeda
    • Organizer
      The 3rd Austria/Japan Seminar on Comparative and Developmental Glycobiology
    • Place of Presentation
      埼玉県和光市
    • Year and Date
      2013-07-02
    • Related Report
      2013 Final Research Report
  • [Presentation] ゴルジ装置の酸性環境による細胞内コレステロールの生合成・輸送の調節2013

    • Author(s)
      前田 裕輔、奥崎 大介、木下 タロウ
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸国際会館他
    • Related Report
      2013 Annual Research Report
  • [Presentation] タンパク質への付加後に起こるGPIアンカーの構造変化の機能的意義2013

    • Author(s)
      木下タロウ、前田裕輔、藤田盛久
    • Organizer
      第36回日本分子生物学会年会
    • Place of Presentation
      神戸国際会館他
    • Related Report
      2013 Annual Research Report
  • [Presentation] 哺乳動物のアルキルアシル型GPIアンカーの生合成機構2013

    • Author(s)
      神澤範行、村上良子、前田裕輔、木下タロウ
    • Organizer
      第86回日本生化学会大会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] Implications of lipid moiety in oligomerization and immunoreactivities of GPI-anchored poteins.2013

    • Author(s)
      Jihyoun Seong, Yatao Wang, Taroh Kinoshita, Yusuke Maeda.
    • Organizer
      The 3rd Austria/Japan Seminar on Comparative and Developmental Glycobiology
    • Place of Presentation
      埼玉県和光市
    • Related Report
      2013 Annual Research Report
  • [Presentation] ゴルジ装置の酸性環境による細胞内コレステロールの生合成・輸送の調節-Regulation of cholesterol biosynthesis and trafficking by acidic environment of Golgi apparatus2012

    • Author(s)
      前田裕輔, 奥崎大介, 木下タロウ
    • Organizer
      第85回日本生化学会大会
    • Place of Presentation
      福岡
    • Year and Date
      2012-12-15
    • Related Report
      2013 Final Research Report
  • [Presentation] The mechanisms by which Golgi acidic pH regulates glycosylation2012

    • Author(s)
      Yusuke Maeda
    • Organizer
      New Frontiers of Metabolism Research in Biomedical Sciences
    • Place of Presentation
      東京
    • Related Report
      2013 Final Research Report
  • [Presentation] The mechanisms by which Golgi acidic pH regulates glycosylation2012

    • Author(s)
      前田 裕輔
    • Organizer
      New Frontiers of Metabolism Research in Biomedical Sciences
    • Place of Presentation
      東京(東京大学)
    • Related Report
      2012 Annual Research Report
  • [Presentation] ゴルジ装置の酸性環境による細胞内コレステロールの生合成・輸送の調節2012

    • Author(s)
      前田 裕輔, 奥崎 大介, 木下タロウ
    • Organizer
      第85回日本生化学会大会
    • Place of Presentation
      福岡国際会議場
    • Related Report
      2012 Annual Research Report
  • [Presentation] ゴルジ装置のpH環境による糖鎖修飾の制御メカニズムHow does Golgi pH regulate glycosylation?2011

    • Author(s)
      前田裕輔
    • Organizer
      第84回日本生化学会大会
    • Place of Presentation
      京都
    • Year and Date
      2011-09-22
    • Related Report
      2013 Final Research Report
  • [Presentation] ゴルジ装置のpH環境による糖鎖修飾の制御メカニズム2011

    • Author(s)
      前田裕輔
    • Organizer
      第84回日本生化学会大会
    • Place of Presentation
      国立京都国際会館(京都)(招待講演)
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Book] Glycoscience: Biology and Medicine (pH control in the Golgi apparatus and congenital disorders of glycosylation)2014

    • Author(s)
      Yusuke Maeda
    • Total Pages
      3
    • Publisher
      Springer
    • Related Report
      2013 Annual Research Report
  • [Remarks] 免疫不全疾患研究分野へようこそ!

    • URL

      http://www.biken.osaka-u.ac.jp/biken/men-eki-huzen/index.html

    • Related Report
      2013 Final Research Report
  • [Remarks] 免疫不全疾患研究分野ホームページ

    • URL

      http://www.biken.osaka-u.ac.jp/biken/men-eki-huzen/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 免疫不全疾患研究分野へようこそ!

    • URL

      http://www.biken.osaka-u.ac.jp/biken/men-eki-huzen/index.html

    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.biken.osaka-u.ac.jp/

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.biken.osaka-u.ac.jp/biken/men-eki-huzen/index.html

    • Related Report
      2011 Annual Research Report

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Published: 2011-04-06   Modified: 2019-07-29  

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