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2008 Fiscal Year Final Research Report

Development of in vitro preservation of human islets to establish the global islets transplant network

Research Project

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Project/Area Number 19591481
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field General surgery
Research InstitutionOsaka University

Principal Investigator

TANEMURA Masahiro  Osaka University, 医学系研究科, 助教 (30379250)

Co-Investigator(Kenkyū-buntansha) ITO Toshinori  大阪大学, 医学系研究科, 寄附講座教授 (20231152)
NOMURA Masaya  大阪大学, 医学系研究科, 助教 (30403190)
Project Period (FY) 2007 – 2008
Keywords移植外科学 / 膵島移植
Research Abstract

本研究ではオートファジー様細胞死と膵島保存・機能傷害との関連を解析した。1 ng/mlまたは10ng/mlのラパマイシン濃度でマウス膵島を処理した。その結果、オートファジー誘導のマーカーであるLC3-IIタンパクの膵島内蓄積を確認し、膵島viabilityも約50%抑制されることを確認した。また、膵島のインスリン分泌能はグルコース負荷テストにおいて、10ng/mlラパマイシン処理では分泌はほぼ完全に抑制された。一方、オートファジー阻害剤・3-methladenineで追加処理することによりLC3-IIタンパク膵島内蓄積、膵島viability、膵島インスリン分泌能を有意に改善させることができ、膵島におけるオートファジー誘導は移植用膵島の保存・品質管理に強く関与していることが示唆された。

  • Research Products

    (15 results)

All 2009 2008 2007

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (7 results) Book (1 results)

  • [Journal Article] Rapamycin induces autophagy in islets : Relevance for islets transplantation2009

    • Author(s)
      Tanemura M, Saga A, Kawamoto K, Machida T, Deguchi T, Nishida T, Sawa Y, Doki Y, Mori M, Ito T
    • Journal Title

      Transplant Proc 41(1)

      Pages: 334-338

    • Peer Reviewed
  • [Journal Article] Adenovirus-mediated gene expression of human c-FLIP_L protects pig islets against human CD8^+ CTL-mediated cytotoxicity2009

    • Author(s)
      Tanemura M, Saga A, Kawamoto K, Machida T, Deguchi T, Nishida T, Sawa Y, Doki Y, Mori M, Ito T
    • Journal Title

      Transplant Proc 41(1)

      Pages: 319-322

    • Peer Reviewed
  • [Journal Article] Intra-and extracellular remodeling effectively prevent human CD8^+ CTL-mediated xenocytotoxicity by coexpression of membrane-bound human FasL and pig c-FLIP_L in pig endothelial cells2009

    • Author(s)
      Tanemura M, Saga A, Kawamoto K, Machida T, Deguchi T, Nishida T, Sawa Y, Doki Y, Mori M, Ito T
    • Journal Title

      Transplant Proc 41(1)

      Pages: 391-395

    • Peer Reviewed
  • [Journal Article] Adenoviral-mediated overexpression of either membrane-bound human FasL or human decoy Fas can prolong pig islet xenograft survival in rat transplant model2008

    • Author(s)
      Kawamoto K, Tanemura M, Saga A, Komoda H, Fumimoto Y, Deguchi T, Machida T, Sawa Y, Nishida T, Ito T
    • Journal Title

      Transplant Proc 40(2)

      Pages: 477-9

    • Peer Reviewed
  • [Journal Article] Pig cellular FLICE-like Inhibitory Protein (c-FLIP) overexpression in pig xenograft cells induces resistance to human CD8^+ CTL-mediated xenocytotoxicity2008

    • Author(s)
      Tanemura M, Saga A, Kawamoto K, Manabe N, Machida T, Deguchi T, Sawa Y, Nishida T, Ito T
    • Journal Title

      Transplant Proc 40(2)

      Pages: 559-63

    • Peer Reviewed
  • [Journal Article] Prolonged survival of pig islets xenograft by adenovirus- mediated expression of either membrane-bound human FasL orhuman decoy Fas antigen gene2008

    • Author(s)
      Kawamoto K, Tanemura M, Doki Y, Mori M, Sawa Y. et.al.(9人中2番目, Corresponding author)
    • Journal Title

      Xenotransplantation 15(5)

      Pages: 333-343

    • Peer Reviewed
  • [Journal Article] In vitro and in vivo prevention of human CD8^+ CTL-mediated xenocytotoxicity by pig c-FLIP expression in porcine endothelial cells2008

    • Author(s)
      Tanemura M, Saga A, Kawamoto K et.al.(8人中1番目)
    • Journal Title

      Am J Transplant 8(2)

      Pages: 288-297

    • Peer Reviewed
  • [Presentation] 移植膵島でのオートファジー誘導の臨床的意義-膵島移植後免疫抑制療法としてラパマイシンは妥当か?2008

    • Author(s)
      種村匡弘
    • Organizer
      日本移植学会総会(44)
    • Place of Presentation
      大阪
    • Year and Date
      20080919-21
  • [Presentation] Intra-and extracellular remodeling effectively prevent human CD8^+ CTL-mediated xenocytotoxicity by coexpression of human membrane-bound FasL and pig c-FLIP_L in pig endothelial cells2008

    • Author(s)
      Tanemura M. et. al.
    • Organizer
      International congress of the transplantation society (22)
    • Place of Presentation
      Sydney
    • Year and Date
      20080809-14
  • [Presentation] Adenovirus-mediated gene expression of human c-FLIPL protects pig islets against human CD8+ CTL-mediated cytotoxicity2008

    • Author(s)
      Tanemura M. et. al.
    • Place of Presentation
      Sydney
    • Year and Date
      20080809-14
  • [Presentation] Rapamycin induces autophagy in islets : Relevance for islets transplantation2008

    • Author(s)
      Tanemura M. et. al.
    • Place of Presentation
      Sydney
    • Year and Date
      20080809-14
  • [Presentation] Pig cellular FLICE-like Inhibitory Protein (c-FLIP) overexpression in pig xenograft cells induces resistance to human CD8^+ CTL-mediated xenocytotoxicity2007

    • Author(s)
      Tanemura M. et. al.
    • Organizer
      Joint Conference of IPITA, CTS and IXA
    • Place of Presentation
      Minneapolis, Minnesota, USA
    • Year and Date
      20070715-20
  • [Presentation] ブタcellular FLICE inhibitory protein(c-FLIP)過剰発現による細胞内シグナル伝達リモデリングを応用したヒトCD8^+ CTL細胞傷害性の制御2007

    • Author(s)
      嵯峨礼美, 種村匡弘, 川本弘一, 菰田弘, 文元雄一, 出口貴司, 町田智彦, 西田俊朗, 澤芳樹, 伊藤壽記
    • Organizer
      第43回日本移植学会総会、シンポジウム
    • Place of Presentation
      仙台
    • Year and Date
      2007-11-23
  • [Presentation] I型糖尿病に対する異種膵島移植療法の確立-レシピエント細胞性拒絶回避の免疫学的戦略-2007

    • Author(s)
      種村匡弘、川本弘一、嵯峨礼美、菰田弘、大森健、文元雄一、島田和典、出口貴司、澤芳樹、西田俊朗、伊藤壽記
    • Organizer
      第107回日本外科学会定期学術集会、ワークショップ
    • Place of Presentation
      大阪
    • Year and Date
      2007-04-13
  • [Book] シュプリンガージャパン刊「膵臓移植-糖尿病根治をめざして-」12章術後管理II合併症(i)外科的合併症2009

    • Author(s)
      伊藤壽記(編集)、種村匡弘

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Published: 2010-06-10   Modified: 2016-04-21  

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