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Cell biological analysis of cytoplasmic lipid droplets

Research Project

Project/Area Number 19390049
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General anatomy (including Histology/Embryology)
Research InstitutionNagoya University

Principal Investigator

FUJIMOTO Toyoshi  Nagoya University, 大学院・医学系研究科, 教授 (50115929)

Co-Investigator(Kenkyū-buntansha) FUJITA Akikazuc  名古屋大学, 大学院・医学系研究科, 准教授 (60282232)
OHSAKI Yuki  名古屋大学, 大学院・医学系研究科, 助教 (00378027)
SUZUKI Michitaka  名古屋大学, 大学院・医学系研究科, 助教 (80456649)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2008: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
Fiscal Year 2007: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Keywords脂肪滴 / 小胞体 / リポ蛋白質 / 電子顕微鏡 / ApoB / Brefeldin A / CtBP / BARS / ADPリボシル化 / 脂質滴 / コレステロール
Research Abstract

肝細胞の脂肪滴について次のような成果を得た.
(1) プロテアソーム阻害, 多価不飽和脂肪酸投与などにより, 小胞体内腔と細胞質の両方に面する特殊な脂肪滴が出現することを見出し, 脂質エステルが小胞体膜中に蓄積し得ることを明確に示した.
(2) 脂質付加後のApolipoprotein Bは小胞体の内腔にあるため, 同分子が細胞質側でプロテアソーム分解を受けるためには特殊な機構が必要であることが示唆された.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (34 results)

All 2009 2008 2007 Other

All Journal Article (17 results) (of which Peer Reviewed: 15 results) Presentation (12 results) Book (3 results) Remarks (2 results)

  • [Journal Article] Lipid droplets are arrested in the ER membrane by tight binding of lipidated apolipoprotein B-1002008

    • Author(s)
      Ohsaki, Y., Cheng, J., Suzuki, M., Fujita, A., Fujimoto, T.
    • Journal Title

      J. Cell Sci 121

      Pages: 2415-2422

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] FSP27 contributes to efficient energy storage in murine white adipocytes by promoting the formation of unilocular lipid droplets2008

    • Author(s)
      Nishino, N., Fujimoto, T(他25名)
    • Journal Title

      J. Clin. Invest 118

      Pages: 2808-2821

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lipid droplet-associated proteins protect renal tubular cells from fatty acid-induced apoptosis. Am2008

    • Author(s)
      Urahama, Y., Ohsaki, Y., Fujita, Y., Maruyama, S., Yuzawa, Y., Matsuo, S., Fujimoto, T.
    • Journal Title

      J. Pathol 173

      Pages: 1286-1294

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lipid droplets : a classic organelle with a new outfit. Histochem2008

    • Author(s)
      Fujimoto, T., Ohsaki, Y., Cheng, J., Suzuki, M., Shinohara, Y.
    • Journal Title

      Cell Biol 136

      Pages: 263-279

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 脂質滴の形成メカニズム2008

    • Author(s)
      藤本豊士, 大崎雄樹, 鈴木倫毅
    • Journal Title

      膜 33

      Pages: 17-23

    • Related Report
      2008 Final Research Report
  • [Journal Article] Lipid droplets are arrested in the ER membrane by tight binding of lipidated apolipoprotein B-100.2008

    • Author(s)
      Ohsaki, Y., Cheng, J., Sxizuki, M., Fujita, A., Fujimoto, T.
    • Journal Title

      J. Cell Sci. 121

      Pages: 2415-2422

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lipid droplet-associated proteins protect renal tubular cells from fatty acid-induced apoptosis.2008

    • Author(s)
      Urahama, Y., Ohsaki, Y. Fujita, Y., Maruyama, S., Yuzawa, Y., Matsuo, S., Fujimoto, T.
    • Journal Title

      Am. J. Pathol. 173

      Pages: 1286-1294

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lipid droplets : a classic organelle with a new outfit.2008

    • Author(s)
      Fujimoto, T., Ohsaki, Y., Cheng, J., Suzuki, M., Shinohara, Y.
    • Journal Title

      Histochem. Cell Biol. 136

      Pages: 263-279

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Platelet-derived growth factor signals play critical roles in differentiation of longitudinal smooth muscle cells inmouse embryonic gut2008

    • Author(s)
      Kurahashi, M., Niwa, Y., Cheng, J., Ohsaki, Y., Fujita, A., Goto, H., Fujimoto, T., and Torihashi, S.
    • Journal Title

      Neurogastroenterol. Motil. (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 脂肪滴形成のメカニズム2008

    • Author(s)
      藤本豊士, 大崎雄樹, 鈴木倫毅
    • Journal Title

      膜 33

      Pages: 17-23

    • NAID

      10020130439

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gangliosides GM1 and GM3 in the living cell membrane form clusters susceptible to cholesterol depletion and chilling2007

    • Author(s)
      Fujita, A., J. Cheng, M. Hirakawa, K. Furukawa, S. Kusunoki, T. Fujimoto
    • Journal Title

      Mol. Biol. Cell 18

      Pages: 2812-2822

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] All-trans-retinol generated by rhodopsin photobleaching induces rapid recruitment of TIP47 to lipid droplets in the retinal pigment epithelium. Invest2007

    • Author(s)
      Tsuiki, E., Fujita, A., Ohsaki, Y, J. Cheng, K. Yoshikawa, H. Senoo, K. Mishima, T. Kitaoka, T. Fujimoto
    • Journal Title

      藤田秋一, 藤本豊士 48

      Pages: 2858-2867

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative retention of membrane lipids in the freeze-fracture replica. Histochem2007

    • Author(s)
      Fujita, A. and T. Fujimoto
    • Journal Title

      Cell Biol 125

      Pages: 385-389

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] 凍結レプリカ標識法による膜脂質の分布解析2007

    • Author(s)
      藤田秋一, 藤本豊士
    • Journal Title

      細胞工学 26

      Pages: 314-319

    • Related Report
      2008 Final Research Report
  • [Journal Article] All-trans-retinol generated by rhodopsin photobleaching induces rapid recruitment of TIP47 to lipid droplets in the retinal pigment epithelium2007

    • Author(s)
      Tsuiki, E., Fujita, A., Ohsaki, Y., Cheng, J., Irie, T., Yoshikawa, K., Senoo, H., Mishima, K., Kitaoka, T., and Fujimoto, T.
    • Journal Title

      Invest. Ophthal. Vis. Sci. 48

      Pages: 2858-2867

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biogenesis of cytoplasmic lipid droplets : from the lipid ester globule in the membrane to the visible structure

    • Author(s)
      Ohsaki, Y Cheng, J., Suzuki, M., Shinohara, Y., Fujita, A., Fujimoto, T.
    • Journal Title

      Biochim. Biophys. Acta (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Segregation of GM1 and GM3 clusters in the cell membrane depends on the intact actin cytoskeleton

    • Author(s)
      Fujita, A., Fujimoto, T.
    • Journal Title

      Biochim. Biophys. Acta (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] Lipid droplets as a new functional platform2009

    • Author(s)
      Fujimoto, T., Ohsaki, Y., Suzuki, M., Fujita, A., Cheng, J., Shinohara, Y.
    • Organizer
      The 6^<th> Symposium of the Asian Biophysics Association
    • Place of Presentation
      Hong Kong
    • Related Report
      2008 Final Research Report
  • [Presentation] 細胞膜脂質のナノスケール局在解析2008

    • Author(s)
      藤田秋一, 程晶磊, 佐藤久美, 藤本豊士
    • Organizer
      日本薬学会第128年会, シンポジウム
    • Place of Presentation
      横浜
    • Year and Date
      2008-03-26
    • Related Report
      2008 Final Research Report
  • [Presentation] 脂質超分子構造を電顕で解析する2008

    • Author(s)
      藤本豊士
    • Organizer
      第32回顕微鏡学会関東支部講演会
    • Place of Presentation
      東京
    • Year and Date
      2008-03-08
    • Related Report
      2008 Final Research Report
  • [Presentation] 脂質超分子構造を電顕で解析する2008

    • Author(s)
      藤本豊士
    • Organizer
      第32回(平成19年度)顕微鏡学会関東支部講演会
    • Place of Presentation
      東京工業大学デジタル多目的ホール
    • Year and Date
      2008-03-08
    • Related Report
      2007 Annual Research Report
  • [Presentation] 凍結割断レプリカ法標識法による膜脂質のナノ局在解析2008

    • Author(s)
      藤本豊士, 藤田秋一, 程晶磊
    • Organizer
      第31回日本分子生物学会年会・第81回日本生化学会年会合同大会(BMB2008), シンポジウム
    • Place of Presentation
      神戸
    • Related Report
      2008 Final Research Report
  • [Presentation] 膜脂質ドメインの形態学的解析2008

    • Author(s)
      藤本豊士
    • Organizer
      特定領域研究「生体膜トランスポートゾームの分子構築と生理機能」平成20年度班会議
    • Place of Presentation
      淡路島
    • Related Report
      2008 Final Research Report
  • [Presentation] Analysis of lipid supramolecular structures by electron microscopy2008

    • Author(s)
      Fujimoto, T
    • Organizer
      The 13th International Congress on Histochemistry and Cytochemistry (ICHC2008), Symposium
    • Place of Presentation
      Gdansk, Poland
    • Related Report
      2008 Final Research Report
  • [Presentation]2008

    • Author(s)
      藤本豊士, 藤田秋一, 程晶磊
    • Organizer
      第60回日本細胞生物学会大会, ミニシンポジウム
    • Place of Presentation
      横浜
    • Related Report
      2008 Final Research Report
  • [Presentation] 電子顕微鏡による膜脂質のナノ局在解析2008

    • Author(s)
      藤本豊士, 藤田秋一, 程晶磊
    • Organizer
      第113回日本解剖学会総会・全国学術集会, シンポジウム
    • Place of Presentation
      大分
    • Related Report
      2008 Final Research Report
  • [Presentation] Analysis of lipid supramolecular structures by electron microscopy2008

    • Author(s)
      Fujimoto, T.
    • Organizer
      The 13th International Congress on Histochemistry and Cytochemistry (ICHC2008)
    • Place of Presentation
      Gdansk, Poland
    • Related Report
      2008 Annual Research Report
  • [Presentation] 脂質超分子構造を電顕で見る2007

    • Author(s)
      藤本豊士
    • Organizer
      日本学術会議シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2007-09-08
    • Related Report
      2008 Final Research Report
  • [Presentation] 脂肪滴構造と機能の解析2007

    • Author(s)
      藤本豊士, 大崎雄樹
    • Organizer
      第51回日本顕微鏡学会シンポジウム
    • Place of Presentation
      徳島
    • Related Report
      2008 Final Research Report
  • [Book] 蛋白質と脂質を見るための電子顕微鏡法2008

    • Author(s)
      藤田秋一, 藤本豊士
    • Publisher
      日本組織細胞化学会「組織細胞化学2008」
    • Related Report
      2008 Final Research Report
  • [Book] 山本章嗣(監修) : 電子顕微鏡で読み解く生命のなぞ. ナノワールドに迫るパワフル技術入門2008

    • Author(s)
      藤本豊士
    • Total Pages
      160
    • Publisher
      秀潤社
    • Related Report
      2008 Final Research Report
  • [Book] 蛋白質と脂質を見るための電子顕微鏡法2008

    • Author(s)
      藤田秋一, 藤本豊士
    • Publisher
      学際企画(印刷中)
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.med.nagoya-u.ac.jp/cel-bio/index.htm

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://www.med.nagoya-u.ac.jp/cel-bio/index.htm

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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