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1986 Fiscal Year Final Research Report Summary

Study on Physiological Function of Oxygenated Sterols in Blood

Research Project

Project/Area Number 59430025
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field Chemical pharmacy
Research InstitutionTokyo Institute of Technology

Principal Investigator

IKEKAWA Nobuo  Faculty of Science, Tokyo Institute of Technology, 理学部, 教授 (50016119)

Co-Investigator(Kenkyū-buntansha) SAITO Yuji  same as above, 理学部, 助手 (30134810)
INADA Yuji  same as above, 理学部, 教授 (40016035)
FUJIMOTO Yoshinori  same as above, 理学部, 助手 (50173472)
MORISAKI Masuo  same as above, 理学部, 助教授 (30016159)
Project Period (FY) 1984 – 1986
KeywordsOxygenated sterol / Gaschromatography-mass spectrometry / Micro-analysis / Blood component / Plant sterol / Plasminogen activator / 植物ステロール / 赤血球
Research Abstract

This study deals with various biological effects of oxygenated sterols on blood components such as erythrocytes and platelets in relation with diseases like atherosclerosis and heart disease, and resulted in the following findings.
(1) Sitosterol and fucosterol were found to produce plasminogen activator in cultured endothelial cells from bovine carotod artery.
(2) Some of the oxygenated sterols found to cause rapid modulation of platelet aggregation in plasma. (22R)-22-Hydroxycholesterol found to specifically undertakes lysis of platelets and erythrocytes through its incorporation into membrane.
(3) Cholesterol analogues with a carbene-generating substituent on the side chain were synthesized and their photochemical reactions were investigated in a model system.
(4) Oxygenated sterols of fungus-infected silkworm carcass, Bombyx cum Botryte were analyzed.
(5) 15-Oxygenated sterols were found to be a potent inhibitor of enzymatic conversion of dihydrolanosterol into cholesterol.
(6) Natural sterols and terpenoids with biological activities related in this project were investigated and their structures were determined.
(7) Serum sterols from patients (hypertension, atherosclerosis) were analyzed for oxygenated sterols.

  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] H.Hagiwara;M.Shimooka;M.Morisaki;N.Ikekawa;Y.Inada: Thrombos.Res.33. 363-370 (1984)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Fujimoto;M.Kimura;F.A.M.Khalifa;N.Ikekawa: Chem.Pharm.Bull.32. 4372-4381 (1984)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Simada;T.Imada;T.Kikuchi;Y.Inada;M.Morisaki;N.Ikekawa;Y.Saito: J.Appl.Biochem.6. 151-155 (1984)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] B.Ying;M,Morisaki;N.Ikekawa: Chem.Pharm.Bull.32. 3003-3008 (1984)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Sato;Y.Sonoda;M.Morisaki;N.Ikekawa: Chem.Pharm.Bull.32. 3305-3308 (1984)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Saito;H.Shimada;T.Imada;T.Kikuchi;N.Ikekawa;Y.Inada: J.Membrane Biol.83. 187-191 (1985)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Terasawa;N.Ikekawa;M.Morisaki: Chem.Pharm.Bull.34. 931-934 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Terasawa;N.Ikekawa;M.Morisaki: Chem.Pharm.Bull.34. 935-936 (1985)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Morisaki;Y.Sonoda;T.Makino;N.Ogihara;N.Ikekawa;Y.Sato: J.Biochem.99. 597-600 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Morigiwa;K.Kitabatake;Y.Fujimoto;N.Ikekawa: Chem.Pharm.Bull.34. 3025-3028 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Mimura;M.Okabe;M.Satake;T.Nakanishi;A.Inada;Y.Fujimoto;F.Hata;Y.Matsumura;N.Ikekawa: Chem.Pharm.Bull.34. 4562-4568 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Hagiwara, M.Shimooka, M.Morisaki, N.Ikekawa, Y. Inada: "Sitosterol-Stimulative Production of Plasminogen Activator in Culture Endothelial Cells from Bovine Carotid Artery" Thrombos. Res.33. 363-370 (1984)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Fujimoto, M.Kimura, F.A.M.Khalifa, N.Ikekawa: "Side Chain Structural Requirement for Utilization of Sterols by the Silkworm for Growth and Development. Non-stereoselective Utilization of the 24-Stereoisomeric Pairs of 24-Alkylsterols" Chem. Pharm. Bull.32. 4372-4381 (1984)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Imada, T.Kikuchi, Y.Inada, M.Morisaki, N.Ikekawa, Y.Saito: "Rapid Modulation of Platelet Aggregation in Plasma by Oxygenated Sterols" J. Appl. Biochem.6. 151-155 (1984)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] B.Ying, M.Morisaki, N.Ikekawa: "Oxygenated Sterol Deriatives. Their Identification from the Fungus-Infected Silkworm Carcass, Bombyx cum Botryte, and Their Effect on Growth and Sterol Metabolism of the Silkworm, Bombyx mori" Chem. Pharm. Bull. 32. 3003-3008 (1984)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Sato, Y.Sonoda, M.Morisaki, N.Ikekawa: "Oxygenated Sterols as Inhibitors of Enzymatic Conversion of Dihydrolanosterol into Cholesterol" Chem. Pharm. Bull.32. 3305-3308 (1984)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Saito, H.Shimada, T.Imada, T.Kikuchi, N.Ikekawa, Y.Inada: "Lysis of Platelets and Erythrocytes by the Incorporation of a Unique Oxygenated Sterols: 22R-Hydroxycholesterol" J. Membrane Biol.83. 187-191 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Terasawa, N.Ikekawa, Morisaki: "Synthesis of Cholesterol Analogs with a Carbene-generating Substituent on the Sterol Side Chain" Chem Pharm. Bull.34. 931-934 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Terasawa, N.Ikekawa, M.Morisaki: "Photochemical Reaction of Cholesterol Analogs with a Carbene-Generating Substituent on the Side Chain" Chem. Pharm. Bull.34. 935-936 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.MOrisaki, Y.Sonoda, T.Makino, N.Ogihara, N.Ikekawa, Y.Sato: "Inhibitory Effect of 15-Oxygenated Sterols on Cholesterol Synthesis from 24,25-Dihydrolanosterol" J. Biochem.99. 579-600 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] A.Morigiwa, K.Kitabatake, Y.Fujimoto, N.Ikekawa: "Angiotensin Converting Enzyme-Inhibitory Triterpenes from Ganoderma lucidum" Chem. Pharm. Bull.34. 3025-3028 (1986)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1988-11-09  

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