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Role of a novel lysophospholipase in phospholipid metabolism

Research Project

Project/Area Number 24590367
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General medical chemistry
Research InstitutionTokyo Metropolitan Institute of Medical Science

Principal Investigator

HIRABAYASHI Tetsuya  公益財団法人東京都医学総合研究所, 生体分子先端研究分野, 主席研究員 (90345025)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsホスホリパーゼ / コリン / グリセロホスホコリン / 肝臓 / 脂肪組織 / 脂質代謝 / 褐色化 / リゾホスホリパーゼ
Outline of Final Research Achievements

We have discovered that a novel lysophospholipase, iPLA2θ, is essential for the mobilization of free choline from the major membrane phospholipid, phoshatidylcholine. Mice deficient in this enzyme cannot utilize sufficient endogenous free choline in the liver, which leads to a shortage of hepatic methyl donors, betaine and S-adenosylmethionine. Our results also indicate that iPLA2θ is required for normal lipid and glucose metabolism.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (15 results)

All 2015 2014 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (11 results) (of which Invited: 2 results) Book (1 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Two Secreted Phospholipase A2 Enzymes, PLA2G5 and PLA2G2E, Are Induced in Hypertrophic Adipocytes and Distinctly Regulate Obesity2014

    • Author(s)
      Hiroyasu Sato, Yoshitaka Taketomi, Ayako Ushida, Yuki Isogai, Takumi Kojima, Tetsuya Hirabayashi, et al.
    • Journal Title

      Cell Metab

      Volume: 19

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] PNPLA7 lysophospholipase has a pivotal role in hepatic choline metabolism and systemic energy homeostasis2015

    • Author(s)
      Hirabayashi T, Mouri M, Shimamura T, Yokoyama K, Ikeda K, Nakata R, Murakami M
    • Organizer
      The 6th International Conference on Phospholipase A2 and Lipid Mediators (PLM2015) from bench to translational medicine
    • Place of Presentation
      京王プラザホテル(東京都新宿区)
    • Year and Date
      2015-02-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] New insight into PLA2s: from outside and inside2015

    • Author(s)
      Murakami M, Taketomi Y, Sato H, Miki Y, Hirabayashi T, Yamamoto K
    • Organizer
      The 6th International Conference on Phospholipase A2 and Lipid Mediators (PLM2015) from bench to translational medicine
    • Place of Presentation
      京王プラザホテル(東京都新宿区)
    • Year and Date
      2015-02-11
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 新規PNPLA/iPLA2の新しい機能2014

    • Author(s)
      平林哲也、村上 誠
    • Organizer
      第87回日本脂質生化学会シンポジウム
    • Place of Presentation
      国立京都国際会館(京都府京都市)
    • Year and Date
      2014-10-16
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 新規リゾホスホリパーゼPNPLA7によるGPC産生経路の生理的役割

    • Author(s)
      平林哲也、毛利美紗、安城樹、島村透、横山浩平、池田和貴、隅寿恵、村上誠
    • Organizer
      第55回日本脂質生化学会
    • Place of Presentation
      宮城県松島町
    • Related Report
      2013 Research-status Report
  • [Presentation] PNPLA7 is a novel lysophospholipase essential for hepatic choline homeostasis and systemic energy metabolism

    • Author(s)
      Tetsuya Hirabayashi, Misa Mouri, Toru Shimamura, Tatsuki Anjo, Kohei Yokoyama, Kazutaka Ikeda, and Makoto Murakami
    • Organizer
      2013 FASEB Science Research Conference Lysophospholipid and Other Related Mediators - From Bench to Clinic
    • Place of Presentation
      ニセコ
    • Related Report
      2013 Research-status Report
  • [Presentation] 皮膚バリア機能における新規脂質代謝酵素PNPLA1の役割

    • Author(s)
      安城樹, 平林哲也, 山本圭, 村上誠
    • Organizer
      第86回日本脂質生化学会
    • Place of Presentation
      横浜
    • Related Report
      2013 Research-status Report
  • [Presentation] 脂肪組織喪失を示すリゾホスホリパーゼPnpla7欠損マウスの解析

    • Author(s)
      毛利美紗, 平林哲也, 島村透, 安城樹, 小林哲幸, 村上誠
    • Organizer
      第86回日本脂質生化学会
    • Place of Presentation
      横浜
    • Related Report
      2013 Research-status Report
  • [Presentation] 新規リゾホスホリパーゼによるGPC産生経路の生理的意義

    • Author(s)
      平林哲也、村上誠
    • Organizer
      第85回日本生化学会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Presentation] 遺伝子欠損マウスを用いた新規細胞内リゾホスホリパーゼの機能解析

    • Author(s)
      毛利美紗、平林哲也、 島村透、安城樹、小林哲幸、村上誠
    • Organizer
      第85回日本生化学会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Presentation] マスト細胞を制御するホスホリパーゼA2分子群の網羅的解析

    • Author(s)
      武富芳隆、上野紀子、小島卓巳、田中 智之、依田恵美子、佐藤弘泰、平林哲也、山本圭、 原俊太郎、村上誠
    • Organizer
      第85回日本生化学会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Presentation] マスト細胞のcPLA2αにより遊離されるアラキドン酸は局所環境でmPGES-1によりPGE2へ変換され抗アレルギーに関わる

    • Author(s)
      上野紀子、武富芳隆、山本圭、平林哲也、亀井大輔、北芳博、清水孝雄、新沢康英、辻本賀英、池田和貴、田口良、村上誠
    • Organizer
      第54回日本脂質生化学会
    • Place of Presentation
      福岡
    • Related Report
      2012 Research-status Report
  • [Book] 疾患モデルの作製と利用-脂質代謝異常と関連疾患2014

    • Author(s)
      平林哲也、村上誠
    • Publisher
      エル・アイ・シー
    • Related Report
      2013 Research-status Report
  • [Remarks] 公益財団法人東京都医学総合研究所 脂質代謝プロジェクト

    • URL

      http://www.igakuken.or.jp/lipid/index_japanese.html

    • Related Report
      2014 Annual Research Report
  • [Patent(Industrial Property Rights)] 皮膚バリア機能促進剤のスクリーニング方法2014

    • Inventor(s)
      村上誠、平林哲也
    • Industrial Property Rights Holder
      公益財団法人東京都医学総合研究所
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2014-116066
    • Filing Date
      2014-06-04
    • Related Report
      2014 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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