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Synthesis of Structured Phospholipids Containing Polyunsaturated Fatty Acid and Their Functional Evaluation

Research Project

Project/Area Number 15360438
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biofunction/Bioprocess
Research InstitutionNagoya University

Principal Investigator

YAMANE Tsuneo  Nagoya University, Graduate School of Bio-and Agro-Sciences, Professor, 大学院・生命農学研究科, 教授 (70026102)

Co-Investigator(Kenkyū-buntansha) IWASAKI Yugo  Nagoya University, Graduate School of Bio-and Agro-Sciences, Lecturer, 大学院・生命農学研究科, 講師 (50273214)
MICHIKAWA Makoto  National Institute for Longevity Sciences, Dept.of Alzheimer's Disease Res., Section Chief, 室長 (40270912)
Project Period (FY) 2003 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥15,300,000 (Direct Cost: ¥15,300,000)
Fiscal Year 2004: ¥6,000,000 (Direct Cost: ¥6,000,000)
Fiscal Year 2003: ¥9,300,000 (Direct Cost: ¥9,300,000)
Keywordsphosphatidylserine / phospholipase D / structured phospholipid / docosahexaenoic acid / AAMI / neural cultured cell / amyloid β protein / neural toxin / ホスフォリパーゼD / リパーゼ / 加齢に伴う記憶力減退 / 神経毒性
Research Abstract

It has been recently reported that both phosphatidylserine (a kind of natural phospholipids) and docosahexaenoic acid (DHA, a kind of polyunsaturared fatty acids) have positive effects on human brain neural system. Because of them, they have attracted much the attention of people as functional foods or medical materials that contribute to brain health. The objective of this work is to synthesize a structured phosphatidylserine whose fatty acid residue is DHA, and to evaluate its function in cultured neural cells.
1)Starting from phosphatidylcholine which is the most abundant phspholipid in nature, three kinds of structured phospholipids have been synthesized chomo-enzymatically : i.e., by using enzymes (phospholipases A_2 and D) combined with chemical deacylation and acylation (esterification). They are 1,2-didocosahexaenoyl-phosphatidylcholine(DDC), 1,2-didocosahexaenoyl-phsphatidylserine (DBS), and 1-oleoyl-2-docosahexaenoyl-phosphatidylserine(ODS).
2)Brain neural cells were first prepared from rat fetal brain and cultured in DMEM/F-12 mixed medium. Adding various compounds including the synthesized phospholipids, protective or deteriorating effect on the cell death in the culture was evaluated by determining activity of lactose dehydrogenase released from apoptosis of the cells. Also, their protecting effect was evaluated from neuron damage induced by amyloid β protein in the culture.
3)Depressive effects of DDC,DDS and ODS were not observed on natural cell death caused in the culture condition. However, it was observed that DDC,DDS and ODS protected from the neuron damage induced by added amyloid β1-42 protein.

Report

(3 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • Research Products

    (14 results)

All 2004 2003 Other

All Journal Article (7 results) Book (2 results) Patent(Industrial Property Rights) (2 results) Publications (3 results)

  • [Journal Article] Detection of phospholipase D on solid materials2004

    • Author(s)
      Yugo Iwasaki et al.
    • Journal Title

      Analytical Biochemistry 329(1)

      Pages: 157-159

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] ホスホリパーゼDの酵素工学2004

    • Author(s)
      岩崎雄吾, 山根恒夫
    • Journal Title

      生物工学 82(7)

      Pages: 297-299

    • NAID

      110002913262

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Detection of phospholipase D on solid materials.2004

    • Author(s)
      Yugo Iwasaki, Seigo Nishikawa, Maki Tsuneda, Tetsuya Takahashi, Tsuneo Yamane
    • Journal Title

      Analytical Biochemistry 329(1)

      Pages: 157-159

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Enzyme engineering of phospholipase D2004

    • Author(s)
      Yugo Iwasaki, Tsuneo Yamane
    • Journal Title

      SEIBUTSU KOUGAKU 82(7)

      Pages: 297-299

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Detection of phospholipase D on solid materials2004

    • Author(s)
      Yugo Iwasaki 他4名
    • Journal Title

      Analytical Biochemistry 329・1

      Pages: 157-159

    • Related Report
      2004 Annual Research Report
  • [Journal Article] An aqueous suspension system for phospholipase-D-mediated synthesis of phosphatidylserine without organic solvent2003

    • Author(s)
      Yugo Iwasaki et al.
    • Journal Title

      Journal of the American Oil Chemists' Society 80(7)

      Pages: 653-657

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] An aqueous suspension system for phospholipase D-mediated synthesis of phosphatidylserine without toxic organic solvent.2003

    • Author(s)
      Yugo Iwasaki, Yukiko Mizumoto, Takahiro Okada, Takaya Yamamoto, Kentaro Tsutsumi, Tsuneo Yamane
    • Journal Title

      Journal of the American Oil Chemists' Society 80(7)

      Pages: 653-657

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Advances in Biochemical Engineering/Biotechnology,90巻第7章2004

    • Author(s)
      Yugo Iwasaki, Tsuneo Yamane
    • Total Pages
      21
    • Publisher
      Springer-Verlag
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Book] Advances in Biochemical Engineering/Biotechnology 90巻第7章2004

    • Author(s)
      Yugo Iwasaki, Tsuneo Yamane
    • Total Pages
      21
    • Publisher
      Springer-Verlag
    • Related Report
      2004 Annual Research Report
  • [Patent(Industrial Property Rights)] セリンの回収方法2004

    • Inventor(s)
      山根 恒夫 他4名
    • Industrial Property Rights Holder
      日清オイリオ(株)
    • Industrial Property Number
      2004-138952
    • Filing Date
      2004-05-07
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Patent(Industrial Property Rights)] セリンの回収方法2004

    • Inventor(s)
      山根 恒夫他4名
    • Industrial Property Rights Holder
      日清オイリオ(株)
    • Industrial Property Number
      2004-138952
    • Filing Date
      2004-05-07
    • Related Report
      2004 Annual Research Report
  • [Publications] Yugo Iwasaki et al.: "An Aqueous Suspension System for Phospholipase D-Mediated Synthesis of PS Without Toxic Organic Solvent"Juournal of American Oil Chemists' Society. 80・7. 653-657 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Sawamura et al.: "Modulation of Amyloid precursor protein cleavage by cellular sphingolipids"Journal of Biological Chemistry. (In press). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Sawamura et al.: "Promotion of tau phosphorylation by MAP kinase Erk1/2 is accompanied by reduced cholesterol level in detergent-insoluble membrane fraction in Niemann-Pick Cl-deficient cells"Journal of Neurochemistry. 84・10. 1086-1096 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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