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GPCRを標的とする天然物リガンドの網羅的探索

Publicly

Project AreaChemical Biology using bioactive natural products as specific ligands: identification of molecular targets and regulation of bioactivity
Project/Area Number 24102522
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionJuntendo University

Principal Investigator

奥野 利明  順天堂大学, 医学(系)研究科(研究院), 准教授 (60361466)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
KeywordsGPCR / 脂質メディエーター / エイコサノイド / 生理活性脂質
Research Abstract

天然物リガンドの重要な標的分子であるGタンパク質共役型受容体(GPCR)に着目し、リガンド未同定のオーファ
ンGPCRの天然リガンド同定と、生理活性を有する天然物リガンドが標的とするGPCRを明らかにすることを目的に研究を推進した。
マウスの臓器からBligh&Dyer法で脂質を抽出し、アセトン分画によってアセトン可溶性画分と不溶性画分に分画した。それら脂質画分を用いて、約30種類のオーファンGPCRの活性化能を検討した。GPCRの活性化能は主に、あらゆるGタンパク質の活性化能を検出可能なTGFalpha shedding assayを利用した。その結果、臓器から抽出した脂質画分に、複数のオーファンGPCRに対する特異的な活性化能があることを見出している。現在、臓器からの抽出条件、各種臓器の検討、GPCR活性化能の検出方法の検討を行っている。本研究により新規の脂質メディエーターが同定され、新しい生理作用の発見が期待される。
また一方、生理活性が報告されているが、受容体が未同定、もしくは報告されているが再現性に乏しい脂質メディエーターが存在する。そこで、それら脂質メディエーターが標的とする受容体のスクリーニングを行った。リガンド活性能は主にTGFalpha Shedding assayを用いた。その結果、少なくとも1つの脂質メディエーターが標的とする受容体の同定に成功し、さらなる詳細な検討を行っている。

Current Status of Research Progress
Reason

25年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

25年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report

Research Products

(34 results)

All 2014 2013 2012

All Journal Article Presentation

  • [Journal Article] 12-hydroxyheptadecatrienoic acid promotes epidermal wound healing by accelerating keratinocyte migration via the BLT2 receptor.2014

    • Author(s)
      Liu M., Saeki K., Matsunobu T., Okuno T., Koga T., Sugimoto Y., Yokoyama C, Nakamizo S., Kabashima K., Narumiya S., Shimizu T., Yokomizo T.
    • Journal Title

      J. Exp. Med.

      Volume: in press

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Leukotriene B4 receptor BLT2 negatively regulates allergic airway eosinophilia2013

    • Author(s)
      Matsunaga Y., Fukuyama S., Okuno T., Sasaki F., Matsunobu T., Asai Y., Matsumoto K., Saeki K., Oike M., Sadamura Y., Machida K., Nakanishi Y., Kubo M., Yokomizo T., Inoue H.
    • Journal Title

      The FASEB Journal

      Volume: 27 Pages: 3306-3314

    • DOI
      10.1096/fj.12-217000
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thromboxane A synthase-independent production of 12-hydroxyheptadecatrienoic acid, a BLT2 ligand.2013

    • Author(s)
      Matsunobu T., Okuno T., Yokoyama C., Yokomizo T.
    • Journal Title

      J Lipid Res

      Volume: 54 Pages: 2979-2987

    • DOI
      10.1194/jlr.m037754
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis of (S,5Z,8E,10E)-12-Hydroxyheptadeca-5,8,10-trienoic Acid(12S-HHT) and its Analogues.2013

    • Author(s)
      Tojo, T. Wang, Q. Okuno, T. Yokomizo, T. Kobayashi, Y.
    • Journal Title

      Synlett

      Volume: 24 Pages: 1545-1548

    • DOI
      10.1055/s-0033-1338961
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 脂質抽出法2013

    • Author(s)
      奥野利明
    • Journal Title

      遺伝子医学MOOK 24、最新生理活性脂質研究

      Volume: 24 Pages: 26-31

    • Related Report
      2013 Annual Research Report
  • [Journal Article] Leukotriene B4 receptor BLT2 negatively regulates allergic airway eosinophilia2013

    • Author(s)
      Matsunaga Yuko
    • Journal Title

      FASEB Journal

      Volume: inpress

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A high-affinity monoclonal antibody against the FLAG tag useful for G-protein-coupled receptor study2012

    • Author(s)
      F.Sasaki
    • Journal Title

      Anal. Biochem.

      Volume: (掲載決定) Pages: 157-165

    • DOI
      10.1016/j.ab.2012.03.014
    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Helix 8 of leukotriene B4 receptor 1 inhibits ligand-induced internalization.2012

    • Author(s)
      Aratake Y, Okuno T, Matsunobu T, Saeki K, Takayanagi R, Furuya S, Yokomizo T
    • Journal Title

      FASEB Journal

      Volume: 26 Pages: 4068-4078

    • DOI
      10.1096/fj.12-212050
    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] 新規樹状細胞サブセットマーカー分子としてのロイコトリエンB4受容体.2014

    • Author(s)
      古賀友紹, 佐々木文之, 佐伯和子, 奥野利明, 横溝岳彦.
    • Organizer
      第134回日本薬学会
    • Place of Presentation
      熊本
    • Related Report
      2013 Annual Research Report
  • [Presentation] 12-HHT受容体BLT2の上皮保護作用.2014

    • Author(s)
      奥野利明.
    • Organizer
      日本薬学会第134回年会
    • Place of Presentation
      熊本
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] ロイコトリエンB4第二受容体(BLT2)の皮膚創傷治癒における促進的役割.2013

    • Author(s)
      Liu M., 佐伯和子, 松延武彦, 奥野利明, 中溝聡, 椛島健治, 横溝岳彦.
    • Organizer
      第55回日本脂質生化学会
    • Place of Presentation
      松島
    • Related Report
      2013 Annual Research Report
  • [Presentation] 新規樹状細胞サブセットマーカーとしてのBLT1受容体.2013

    • Author(s)
      古賀友紹, 佐々木文之, 佐伯和子, 奥野利明, 横溝岳彦.
    • Organizer
      第55回日本脂質生化学会
    • Place of Presentation
      松島
    • Related Report
      2013 Annual Research Report
  • [Presentation] マウスBLT1およびDYKDDDDK配列に対して高親和性を有するヒト化単クローン抗体の樹立.2013

    • Author(s)
      佐々木文之, 池田恒基, 上野あゆみ, 佐伯和子, 奥野利明, 古賀友紹, 横溝岳彦.
    • Organizer
      第86回日本生化学会大会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] トロンボキサン合成酵素非依存的な12-HHT産生機構.2013

    • Author(s)
      奥野利明, 松延武彦, 横溝岳彦.
    • Organizer
      第86回日本生化学会大会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] ロイコトリエンB4第二受容体(BLT2)の細胞接着形成における役割.2013

    • Author(s)
      石井由美子, 佐伯和子, Min Liu., 奥野利明, 横溝岳彦.
    • Organizer
      第86回日本生化学会大会
    • Place of Presentation
      横浜
    • Related Report
      2013 Annual Research Report
  • [Presentation] BLT1 defines a DC1 subset that induces Th1 differentiation by releasing IL-12p35.2013

    • Author(s)
      Koga T., Sasaki F., Saeki K., Ichiki T., Okuno T., Yokomizo T.
    • Organizer
      第42回日本免疫学会
    • Place of Presentation
      千葉
    • Related Report
      2013 Annual Research Report
  • [Presentation] Physiological and pathological roles of leukotriene B4 receptor 1 in M2 macrophages.2013

    • Author(s)
      Sasaki F., Koga T., Saeki K., Okuno T., Yokomizo T.
    • Organizer
      第42回日本免疫学会
    • Place of Presentation
      千葉
    • Related Report
      2013 Annual Research Report
  • [Presentation] BLT2の生体内リガンド・12-HHTの生合成機構の解明.2013

    • Author(s)
      奥野利明.
    • Organizer
      第4回公開シンポジウム. 天然物ケミカルバイオロジー ~分子標的と活性制御~
    • Place of Presentation
      つくば
    • Related Report
      2013 Annual Research Report
  • [Presentation] Generation, characterization and humanization of high-affinity monoclonal antibody against leukotriene B4 receptor 1 (BLT1).2013

    • Author(s)
      keda K., Sasaki F., Ueno A., Okuno T., Koga T., Yokomizo T.
    • Organizer
      Faseb SRC: Lysophospholipid and Other Related Medaitors-From Bench to Clinic
    • Place of Presentation
      Niseko
    • Related Report
      2013 Annual Research Report
  • [Presentation] Role of leukotriene B4 receptor BLT1 in dendritic cells.2013

    • Author(s)
      Koga T., Sasaki F., Saeki K., Ichiki T., Okuno T., Yokomizo T.
    • Organizer
      Faseb SRC: Lysophospholipid and Other Related Medaitors-From Bench to Clinic
    • Place of Presentation
      Niseko
    • Related Report
      2013 Annual Research Report
  • [Presentation] The physiological function of a leukotriene B4 receptor 1 in M2 macrophages.2013

    • Author(s)
      Sasaki F., Koga T., Saeki K., Okuno T., Yokomizo T.
    • Organizer
      Faseb SRC: Lysophospholipid and Other Related Medaitors-From Bench to Clinic
    • Place of Presentation
      Niseko
    • Related Report
      2013 Annual Research Report
  • [Presentation] Biosynthetic pathway of 12-hydroxyeicosatetraenoic acid, a BLT2 ligand.2013

    • Author(s)
      Okuno T., Matunobu T., Yokoyama C., Yokomizo T.
    • Organizer
      13th International Conference on Bioactive Lipids in Cancer, Inflammation and Related Diseases
    • Place of Presentation
      San Juan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Leukotriene B4 receptor 1 is a potential marker of mouse dendritic cells.2013

    • Author(s)
      Koga T., Sasaki F., Saeki K., Ichiki T., Okuno T., Yokomizo T.
    • Organizer
      The 8th Korea-Japan Conference on Cellular Signaling for Young Scientists
    • Place of Presentation
      Fukuoka
    • Related Report
      2013 Annual Research Report
  • [Presentation] Physiological and pathological roles of leukotriene B4 receptor 1 in M2 macrophages.2013

    • Author(s)
      Sasaki F., Koga T., Saeki K., Okuno T., Yokomizo T.
    • Organizer
      The 8th Korea-Japan Conference on Cellular Signaling for Young Scientists
    • Place of Presentation
      Fukuoka
    • Related Report
      2013 Annual Research Report
  • [Presentation] Crucial Role of the 12-HHT Receptor BLT2 in Epidermal Wound Healing.2013

    • Author(s)
      Okuno T.
    • Organizer
      The 2nd International Symposium on Chemical Biology of Natural Products: Target ID and Regulation of Biology.
    • Place of Presentation
      Yokohama
    • Related Report
      2013 Annual Research Report
  • [Presentation] Crucial role of the 12-HHT receptor BLT2 in epidermal wound healing.2012

    • Author(s)
      Min L.
    • Organizer
      第85回日本生化学会大会シンポジウム
    • Place of Presentation
      Fukuoka
    • Year and Date
      2012-12-14
    • Related Report
      2012 Annual Research Report
  • [Presentation] Expression and Function of a Leukotriene B4 receptor 1 in M2-type macrophage.2012

    • Author(s)
      佐々木文之
    • Organizer
      第41回日本免疫学会
    • Place of Presentation
      神戸
    • Year and Date
      2012-12-05
    • Related Report
      2012 Annual Research Report
  • [Presentation] BLT1 as a potential marker of mouse dendritic cell subsets.2012

    • Author(s)
      古賀友紹
    • Organizer
      第41回日本免疫学会
    • Place of Presentation
      神戸
    • Year and Date
      2012-12-05
    • Related Report
      2012 Annual Research Report
  • [Presentation] The roles of leukotriene B4 receptor BLT2 in the cell-cell junction formation.2012

    • Author(s)
      石井由美子
    • Organizer
      第85回日本生化学会大会
    • Place of Presentation
      福岡
    • Year and Date
      2012-12-05
    • Related Report
      2012 Annual Research Report
  • [Presentation] Gタンパク質シグナルと受容体内在化を制御するGPCRヘリックス8の役割2012

    • Author(s)
      奥野利明
    • Organizer
      第85回日本生化学会大会
    • Place of Presentation
      福岡
    • Year and Date
      2012-12-05
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] A novel dendritic cell subset that promotes Th17 differentiation.2012

    • Author(s)
      Koga T.
    • Organizer
      12th Biennial International Endotoxin Innate Immunity Society (IEIIS) Meeting
    • Place of Presentation
      Tokyo
    • Year and Date
      2012-10-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] Two distinct pathways for biosynthesis of 12-HHT, a ligand for BLT2 receptor.2012

    • Author(s)
      Okuno T.
    • Organizer
      12th Biennial International Endotoxin Innate Immunity Society (IEIIS) Meeting
    • Place of Presentation
      Tokyo
    • Year and Date
      2012-10-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] BLT2の内在性リガンド12-HHTの生合成機構の解明2012

    • Author(s)
      松延武彦
    • Organizer
      第54回日本脂質生化学会
    • Place of Presentation
      福岡
    • Year and Date
      2012-06-07
    • Related Report
      2012 Annual Research Report
  • [Presentation] BLT1発現が規定するマクロファージサブセットの解析2012

    • Author(s)
      佐々木文之
    • Organizer
      第9回東京呼吸器リサーチフォーラム
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report

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Published: 2013-05-15   Modified: 2019-07-29  

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