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2015 Fiscal Year Annual Research Report

天然物医薬品の日独双方向国際展開に資する薬用植物の化学的研究

Research Project

Project/Area Number 15F15108
Research InstitutionNational Institute of Health Sciences

Principal Investigator

袴塚 高志  国立医薬品食品衛生研究所, 生薬部, 部長 (60221488)

Co-Investigator(Kenkyū-buntansha) KUCHTA KENNY  国立医薬品食品衛生研究所, 生薬部, 外国人特別研究員
Project Period (FY) 2015-04-24 – 2017-03-31
Keywords益母草 / オリーブ / メタボリックシンドローム
Outline of Annual Research Achievements

本研究は、益母草(Leonurus japonicus)及びオリーブ(Olea europaea)の葉を対象として、含有される化学成分について比較検討し、特に、益母草については欧州薬局方に同属のLeonurus cardiacaが収載されていることから、その薬理活性等に着目しながら検討し、日独の天然物医薬品及び天然素材に関する双方向国際展開を目指すものである。
本年度は、Leonurus japonicus及びLeonurus cardiacaより17種類の成分を単離し、メタボリックシンドロームに関連する核内受容体PPARα,β/σ及びγへの影響について検討した。PPARリガンド結合部位とGAL4結合部位を連結し、その下流にルシフェラーゼレポーター遺伝子を接続した発現ベクター系を用い、成分の活性を評価したところ、7R-chloro-6-desoxy-harpagideがPPARβ/σを活性化させることが分かり、本成分が抗糖尿病治療薬開発のシーズとなり得ることを示すことができた。一方、Olea europaeaのエキスについては、PPARα,β/σ及びγのいずれに関しても影響を及ぼさなかった。
これらの結果を含めて、論文4報、学会発表9件、図書1件を成果報告しており、中でも、7月にBonnで開催されたPHYTOPHARM学会において受賞したポスター賞は特筆に値し、積極的に研究活動を遂行している。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

当初の目的通り、Leonurus japonicus及びLeonurus cardiacaの化学成分について検討し、メタボリックシンドロームのうち糖尿病に関与するPPARβ/σを活性化させる成分を見出し、より17種類の成分を単離し、2015年7月にBonnで開催されたPHYTOPHARMにおいて学会発表しており、順調に研究は進んでいるものと判断される。なお、Leonurus属植物に関する発表ではないが、同学会にて「Curcumin induces apoptosis in hepatic stellate cells via inhibition of the MyD88 pathway」の発表において2015年のポスター賞を受賞している。

Strategy for Future Research Activity

当初の目的通り、益母草及びオリーブを中心に化学成分に関する検討を進め、日独の天然物医薬品及び天然素材に関する双方向国際展開を意識しながら、積極的に国際あるいは日本国内での成果報告に努める。

  • Research Products

    (14 results)

All 2016 2015

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results) Presentation (9 results) (of which Int'l Joint Research: 7 results) Book (1 results)

  • [Journal Article] Curcumin, the main active constituent of turmeric (Curcuma longa L.), induces apoptosis in hepatic stellate cells by modulating the abundance of apoptosis-related growth factors.2015

    • Author(s)
      He YJ, Kuchta K, Lv X, Lin Y, Ye GR, Liu XY, Song HD, Wang LX, Kobayashi Y, Shu JC
    • Journal Title

      Z Naturforsch C

      Volume: 70 Pages: 281-285

    • DOI

      10.1515/znc-2015-4143

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] German Kava Ban Lifted by Court: The Alleged Hepatotoxicity of Kava (Piper methysticum) as a Case of Ill-Defined Herbal Drug Identity, Lacking Quality Control, and Misguided Regulatory Politics2015

    • Author(s)
      Kuchta K, Schmidt M, Nahrstedt A
    • Journal Title

      Planta Med

      Volume: 81 Pages: 1647-1653

    • DOI

      10.1055/s-0035-1558295

    • Peer Reviewed
  • [Journal Article] GABAA Receptor Binding Assays of Standardized Leonurus cardiaca and Leonurus japonicus Extracts as Well as Their Isolated Constituents2015

    • Author(s)
      Rauwald HW, Savtschenko A, Merten A, Rusch C, Appel K, Kuchta K
    • Journal Title

      Planta Med

      Volume: 81 Pages: 1103-1110

    • DOI

      10.1055/s-0035-1546234

    • Peer Reviewed
  • [Journal Article] Effects of bergamot (Citrus bergamia (Risso) Wright & Arn.) essential oil aromatherapy on mood states, parasympathetic nervous system activity, and salivary cortisol levels in 41 healthy females2015

    • Author(s)
      Watanabe E, Kuchta K, Kimura M, Rauwald HW, Kamei T, Imanishi J
    • Journal Title

      Forsch Komplementmed

      Volume: 22 Pages: 43-49

    • DOI

      10.1159/000380989

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Effects of herbs of the genus Leonurus and 17 of their isolated constituents on PPARα, β/δ, and γ in a luciferase reporter gene assay.2015

    • Author(s)
      Kuchta K
    • Organizer
      日本生薬学会第62回年会
    • Place of Presentation
      岐阜市
    • Year and Date
      2015-09-12
  • [Presentation] Screening of 22 Medicinal Plant Extracts with an in vitro Luciferase Reporter Gene Assay for Effects on the Metabolic Syndrome Related Targets PPARα, β/δ, and γ - Mainly Concentrating on the Genus Leonurus and 17 of its Isolated Constituents.2015

    • Author(s)
      Kuchta K
    • Organizer
      ISPSA2015, the Inaugural Symposium of the Phytochemical Society of Asia
    • Place of Presentation
      徳島市
    • Year and Date
      2015-09-01
    • Int'l Joint Research
  • [Presentation] Effects of medicinal plants of the genus Leonurus and seventeen of their isolated constituents on the activity of PPARα, β/δ, and γ in an in vitro luciferase reporter gene assay.2015

    • Author(s)
      Kuchta K, Matsuura N, Rauwald HW, Rusch C, Shoyama Y, Iinuma M
    • Organizer
      XIXth International Congress PHYTOPHARM
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2015-07-23
    • Int'l Joint Research
  • [Presentation] Screening of 19 traditional Mexican medicinal plants for effects on the metabolic syndrome related targets PPARα, β/δ, and γ in an in vitro luciferase reporter gene assay2015

    • Author(s)
      Kuchta K, Matsuura N, Rauwald HW, Quintanilla-Licea R, Iinuma M
    • Organizer
      XIXth International Congress PHYTOPHARM
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2015-07-23
    • Int'l Joint Research
  • [Presentation] Curcumin induces apoptosis in hepatic stellate cells via inhibition of the MyD88 pathway.2015

    • Author(s)
      Shu JC, Kuchta K, He YJ, Deng YM, Lin Y, Ye GR, Lv X, Liu XY, Kobayashi Y
    • Organizer
      XIXth International Congress PHYTOPHARM
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2015-07-22
    • Int'l Joint Research
  • [Presentation] Celastrol, an active constituent of the TCM plant Tripterygium wilfordii, inhibits prostate cancer bone metastasis.2015

    • Author(s)
      Kuchta K, Xiang Y, Huang S, Tang Y, Peng X, Wang X, Zhu Y, Li J, Xu J, Lin Z, Pan T
    • Organizer
      XIXth International Congress PHYTOPHARM
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2015-07-22
    • Int'l Joint Research
  • [Presentation] How to receive regulatory approval in Japan for Western Herbal Medicinal Products (WHMP)2015

    • Author(s)
      Kuchta K
    • Organizer
      XIXth International Congress PHYTOPHARM
    • Place of Presentation
      Bonn (Germany)
    • Year and Date
      2015-07-22
    • Int'l Joint Research
  • [Presentation] Effects of Leonurus japonicus Houtt. and eight of its bioactive constituents on the activity of PPARα, β/δ, and γ in a newly developed in vitro luciferase reporter gene assay.2015

    • Author(s)
      Kuchta K
    • Organizer
      International Symposium for Japanese Kampo Medicine
    • Place of Presentation
      Vienna (Austria)
    • Year and Date
      2015-06-20
    • Int'l Joint Research
  • [Presentation] Inhibition of Prostate Cancer Bone Metastasis by Celastrol, a Bioactive Constituent of Tripterygium wilfordii 雷公藤.2015

    • Author(s)
      Kuchta K
    • Organizer
      第2回日本健康促進医学会学術総会
    • Place of Presentation
      神戸市
    • Year and Date
      2015-05-18
  • [Book] Lehrbuch Phytotherapie 13th edition2016

    • Author(s)
      Fintelmann V, Weiss RF, Kuchta K
    • Total Pages
      440
    • Publisher
      Haug

URL: 

Published: 2016-12-27  

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