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制がん性プロスタグランジンの科学的および生物学的研究

Research Project

Project/Area Number 06044095
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionNagoya University

Principal Investigator

野依 良治  名古屋大学, 大学院・理学研究科, 教授 (50022554)

Co-Investigator(Kenkyū-buntansha) ISHIKAWA Tos  テキサス大学, MDアンダーソンがんセンター, 助教授
北村 雅人  名古屋大学, 大学院理学研究科, 助教授 (50169885)
鈴木 正昭  岐阜大学, 工学部, 教授 (90093046)
AKIMARU Kuni  テキサス大学, MDアンダーソンがんセンター, 博士研究員
ISHIZUKA Hir  テキナサ大学, MDアンダーソンがんセンター, 博士研究員
Project Period (FY) 1994 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1996: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1995: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1994: ¥2,900,000 (Direct Cost: ¥2,900,000)
Keywords抗腫瘍性プロスタグランジン / グルタチオン抱合体 / GS-Xポンプ / シスプラチン耐性HL-60 / 光親和性標識プローブ / 耐性克服 / 薬剤耐性 / グルタチオン / シスプラチン耐性HL-60細胞 / 分子プローブ / 光親和性標識 / 抗腫瘍性 / プロスタグランジン / シスプラチン耐性細胞 / HL60 / c-myc遺伝子
Research Abstract

1.化学的研究(国内グループ):癌細胞のPG耐性に関与しているGS-Xポンプタンパク質捕獲のための光親和性標識用プローブを設計し、その合成に成功した。さらに、GS-Xポンプによる輸送機構の検討から腫瘍細胞のドキソルビシン耐性の分子機構を明らかにした。一方、PGの特異的タンパク質誘導作用に直結する細胞内受容体の捕獲・同定のための分子プローブを設計し、その合成法を確立した。具体的には、△^7-PGA_1に構造修飾を施すことで、科学的および生物学的により安定でかつ充分な活性を持つPG類縁体を創製し、これを母核として光親和性標識のためのアジド基と検出のための放射核を組み込んだプローブの合成に成功した。
2.生物学的研究(米国グループ):上記国内グループが合成したGS-Xポンプ機能探索プローブを用い、GS-Xポンプを過剰に発現しているシスプラチン耐性HL-60細胞から調整した形質膜ベシクルでのATP依存性ロイコトリエンC_4輸送阻害実験を行ない、探索プローブとGS-Xポンプとの間に強い相互作用があることを確認した(IC_<50>=0.3μM、Km=110nM)。さらにPG-グルタチオン抱合体輸送阻害実験を行い、同探索プローブが抱合体の輸送を強く阻害することを見出した(IC_<50>=0.5μM)。以上の結果から、探索プローブが、癌細胞の示すPG耐性の克服に向けた新規薬剤設計のリ-ド化合物と成り得ることが明らかになった。現在、国内グループが開発した上記分子プローブを用い、GS-Xポンプタンパク質の捕獲と分子構造の解明、さらにはPGの細胞内受容体の捕獲・同定実験が進行中である。
以上のように研究は所期の目的を達成し、充分な成果を上げることができた。

Report

(3 results)
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • 1994 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] M.Suzuki: "Chemical Implications for Anti-Tumor and Anti-Viral Prostaglandins:Reaction of Δ^7-Prostaglandin A_1 and Prostaglandin A_1 Methyl Esters with Thiols." J.Am.Chem.Soc.(in press).

    • Related Report
      1996 Annual Research Report
  • [Publications] K.Akimaru: "Induction of MRP/GS-X Pump and Cellular Resistance to Anticancer Prostaglandins." Cytotechnology. 19. 221-227 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] H.Takechi: "A Novel Subtype of the Prostacyclin Receptor Expressed in the Central Nervous System." J.Biol.Chem.271. 5901-5906 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] M.Suzuki: "(15R)-16-m-Tolyl-17,18,19,20-tetranorisocarbacyclin:A Stable Ligand with High Binding Affinity and Specificity for a Prostacyclin Receptor in the Central Nervous System" Angew.Chem. Int.Ed.Engl.35. 334-336 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ishikawa: "How Does the MRP/GS-X Pump Export Doxorubicin?" J.Natl.Cancer Inst.87. 1639-1640 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] R.Noyori: "Unnatural Prostaglandins of Biochemical and Physiological Significance" Pure & Appl.Chem.66. 1999-2005 (1994)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.ishikawa: "Glutathione and ATP-dependent Export of Anticancer Drugs. In "Drug Transport in Antimicrobial and Anticancer Drugs," ed by N.H.Georgopapadakou" Marcel Dekker,New York, (in press)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ishikawa and K.Akimaru: "Transport of Glutathione S-Conjugates from Cancer Cells:Function and Structure of the GS-X Pump in "Glutathione S-Transferases:Structure,Function and Clinical Implications,"" Tayler and Francic,London, 199-211 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] T.Ishikawa and F.Ali-Osman: "Glutathione Conjugation and ATP-Dependent Export of Anticancer Drugs in "Drug Transport in Antimicrobial and Anticancer Chemotherapy," ed. by N.H.Georgopapadakou" Marcel Dekker,Inc.,New York, 577-612 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] T. Ishikawa: "How Does the MRP/GS-XPump Export Doxorubicin" J. Natl. Cancer Inst.87. 1639-1640 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] K. Akimaru: "Induction of MRP/GS-XPump and Cellular Resistance to Anticancer Prostaglandins" Cytotechnology. (in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] K. Akimaru: "Cell Growth Inhibition by Antitumor Prostaglandin and its Modulation by MRP/GS-XPump" Eicosanoids and Other Bioactive Lipids in Cancer, Inflammation, and Radiation Injuly,. (in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Suzuki: "(15R)-16-m-Toly1-17, 18, 19, 20-tetranorisocarbacyclin : A Stable Ligand with High Binding Affinity and Specificity for a Prostacyclin Receptor in the Central Nervous System" Angew. Chem. Int. Ed. Engl.(in press).

    • Related Report
      1995 Annual Research Report
  • [Publications] M. Kitamura: "Self and Nonself Recognition of Asymmetric Catalysts. Nonlinear Effects in the Amino Alcohol-Promoted Enantioselective Addition of Dialkylzincs to Aldehydes" J. Am. Chem. Soc.117. 4832-4842 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Ishikawa: "GS-Xpump is Functionally Overexressed in Cisplatin-Resistant Human Leukemia HL-60 Cells and Downregulated by Cell Differentiation" J. Bio. Chem.269. 9085-29093 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] T. Ishikawa: "Glutathione and ATP-dependent Export of Anticancer Druge. In ″Drug Transport in Antimicrobial and Anticancer Drugs, ″ed by N. H. Georgopapadakou" Marcel Dekker, New York, in press

    • Related Report
      1995 Annual Research Report
  • [Publications] R. Noyori: "Asymmetric Catalysis in Organic Synthesis" John Wiley & Sons, 378 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Suzuki: "Organocopper Reagents" Oxford University Press, 362 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] R.Noyori: "Unnatural Prostaglandins of Biochimical and Physiological Significance" Pure and Appl.Chem.66. 1999-2005 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] R.Noyori: "Organometallic Ways for the Multiplication of Chirality" Tetrahedron. 50. 4259-4292 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Kitamura: "General Asymmetric Synthesis of Isoquinoline Alkalioids. Enantioselective Hydrogenation of Enamides Catalyzed by BINAP-Ruthenium(II) Complexes" J.Org.Chem.59. 297-310 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ishikawa: "GS-X pump is Functionally Overexressed in Cisplatin-Resistant Human Leukemia HL-60 Cells and Downregulated by Cell Differentiation" J.Bio.Chem.269. 29085-29093 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Ishikawa: "Glutathione and ATP-dependent Export of Anticancer Drugs. In “Drug Transport in Antimicrobial and Anticancer Drugs," ed by N.H.Georgopapadakou" Marcel Dekker,New York (in press),

    • Related Report
      1994 Annual Research Report
  • [Publications] R.Noyori: John Wiley & Sons,New York,1994.27HC02:Asymmetric Catalysis in Organic Synthesis, 378 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2018-06-07  

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