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Mechanism of anti-infectious capacity of cryopreserved heart-valve and vascularallograft against Methicillin-resistant Staphylococcus aureus

Research Project

Project/Area Number 19591615
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thoracic surgery
Research InstitutionThe University of Tokyo

Principal Investigator

SAITO Aya  The University of Tokyo, 医学部・附属病院, 助教 (10431868)

Co-Investigator(Kenkyū-buntansha) MOTOMURA Noboru  東京大学, 医学部・附属病院, 講師 (40332580)
MURAKAMI Arata  東京大学, 医学部・附属病院, 助教授 (70190874)
Co-Investigator(Renkei-kenkyūsha) NARUI Koji  東京薬科大学, 薬学部, 助教 (70366417)
NOGUCHI Norihisa  東京薬科大学, 薬学部, 準教授 (50164679)
KAKIMI Kazuhiro  東京大学, 医学部・附属病院, 特任準教授 (80273358)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsIndoleamine 2, 3-dioxygenase(IDO) / 同種心臓弁移植・血管移植 / Indoleamihe 2,3-dioxygenase(IDO) / 移植・再生医療 / 細胞・組織 / 微生物
Research Abstract

本研究において、同種移植後の移植片がMRSAの増殖を抑制する機能を獲得しており移植片局所における特異的炎症反応の存在(T cell response、IFNγ・TNFα の遺伝子発現)を確認した。更に、同種移植時に発現するIFNγの刺激により抗感染性に関与すると考えられるIDOが移植片局所において遺伝子・蛋白レベルで発現していることが確認できた。移植片のIDOと抗感染性との関連については、特にIDOによるTrp代謝産物の系に注目して検証した。Trp代謝
産物のうち3-Hydroxykynurernineが抗菌活性を持つことが確認された。これらの結果は、同種移植後IFNγの刺激により移植片に発現したIDOが移植片のもつ抗感染性のメカニズムにおいて重要な役割を担っていることを示唆し、ホモグラフトのMRSA感染に対する科学的実証であると考えられた。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (9 results)

All 2009 2008 2007

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (3 results) Book (1 results)

  • [Journal Article] Anti-infectious activity of tryptophan metabolites in the L-typtophan-L-kynurenine pathway2009

    • Author(s)
      K. Narui, N. Noguchi, A Saito, N, Motomura, et.al.
    • Journal Title

      Biol. Pharm. Bull 32

      Pages: 41-44

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] ホモグラフトに関する弁置換術の実際2009

    • Author(s)
      齋藤綾、本村昇、高本眞一
    • Journal Title

      Circulation up-to-date 4

      Pages: 106-111

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Vascular Allografts are Resistant to Methicillin-resistant Staphylococcus aureus via Indoleamine 2, 3-Dioxygenase in Murine Model2008

    • Author(s)
      A. SAITO, N. Motomura, K. Kakimi et.al.
    • Journal Title

      J Thorac and CardiovascSurg 136

      Pages: 159-167

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Vascular Allografts are Resistant to Methicillin-resistant Staphylococcus aureus via Indoleamine 2,3-Dioxygenase in Murine Model2008

    • Author(s)
      A. SAITO, N. Motomura, K. Kakimi et.al
    • Journal Title

      Journal of Thoracic and Cardiovascular Surgery 136

      Pages: 159-167

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vascular Allografts are Resistant to Methicillin-resistant Staphylococcus aureus via Indoleamine 2,3-Dioxygenase in Murine Model2008

    • Author(s)
      A. SAITO, N. Motomura, K. Kakimi, et. al.
    • Journal Title

      Journal of Thoracic and Cardiovascular Surgery (掲載確定)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Impact of cryopreservation on anti-MRSA resistance2009

    • Author(s)
      E. Karimov, N. Motomira, K. Kakimi, A.Saito, et.al.
    • Organizer
      ISHLT 2009
    • Place of Presentation
      France
    • Year and Date
      2009-04-24
    • Related Report
      2008 Final Research Report
  • [Presentation] Clinical application of cryopreserved human allograft tissues. Cryo medicine in cardiovascular surgical field2007

    • Author(s)
      A. Saito N. Motomura et.al.
    • Organizer
      CRYO2007
    • Place of Presentation
      Canada
    • Year and Date
      2007-07-29
    • Related Report
      2008 Final Research Report
  • [Presentation] Clinical application of cryopreserved human allograft tissues. Cryo medicine in cardiovascular surgical field2007

    • Author(s)
      A. Saito N. Motomura, et. al.
    • Organizer
      CRYO2007
    • Place of Presentation
      Lake Louise, Canada
    • Year and Date
      2007-07-28
    • Related Report
      2007 Annual Research Report
  • [Book] ホモグラフトに適する弁置換術の実際2009

    • Author(s)
      齋藤 綾、本村 昇、高本眞一
    • Publisher
      Circulation up-to-date
    • Related Report
      2008 Final Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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