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転写因子NFkBをターゲットとした新しい薬剤流出ステントの開発

Research Project

Project/Area Number 20659196
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field General surgery
Research InstitutionHokkaido University

Principal Investigator

藤堂 省  Hokkaido University, 大学院・医学研究科, 教授 (60136463)

Co-Investigator(Kenkyū-buntansha) 尾崎 倫孝  北海道大学, 大学院・医学研究科, 特任教授 (80256510)
山下 健一郎  北海道大学, 大学院・医学研究科, 特任助教 (00399940)
Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2009: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2008: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywords医療・福祉 / 外科 / 循環器・高血圧 / 構造・機能材料 / 薬学 / ステント / 動脈硬化 / NFkB阻害剤
Research Abstract

前年薬剤の保持ポリマーとして使用したPCL膜は分解時間が長く、DHMEQを徐放し、生体内で分解するという観点からは今後ポリマーの再検討が必要であった。そこで今年度ではハニカム膜の外側にDHMEQを搭載したゼラチンゲルを塗布して薬剤を溶出させる方法を検討した。メリットとしてハニカム膜にDHMEQを混ぜる必要がなく、ゲルは溶出速度とハニカム膜との親和性のみ考慮すればよいことが挙げられる。ゲルの溶解速度はグルタールアルデヒド(GA)でゲルの分子を架橋することで調整した。
最初にGAによる反応時間と濃度の影響を検討したところ、GA濃度0.05%/37℃で反応時間30分で作成したものが7日後の溶解率が50%であった。そこで反応条件を0.05%/10分とした。
これにDHMEQ(5%、10%w/w)を搭載したDHMEQゼラチンゲルを作成し、in vitroでDHMEQの溶出速度を30min,60min,3h,6h,12hの時間でHPLCで測定したところ、30分で濃度がピークとなり、12時間後には検出限界以下まで低下した。薬剤はPCL膜と同様、浸漬後数時間で大部分が溶出していると考えられる。
次にステントにゼラチンゲルを巻きつける方法を検討した。DHMEQゼラチンゲルは乾燥後弾性を持たないため、まずステントにPCLハニカム膜を巻きつけ、ゼラチンゲルにステントを浸漬する方法を検討したが、ステント拡張時に膜に破損が見られた。そこで直接ステントをゼラチンゲルに浸漬・乾燥して塗布する方法を検討したところ、顕微鏡下で膜が塗布されている様子が確認できた。以上よりDHMEQゼラチンゲルをステントに搭載するには直接ゲルをステント支柱に浸漬させる方法が現実的であると思われた。

Report

(2 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (30 results)

All 2008

All Journal Article (10 results) (of which Peer Reviewed: 7 results) Presentation (20 results)

  • [Journal Article] Does the permanent portacaval shunt for a small-for-size g raft in a living donor liver transplantation do more harm than good?2008

    • Author(s)
      Tetsu Oura
    • Journal Title

      Am J Transplant 8

      Pages: 250-252

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preventing hypoxia/reoxygenation damage to hepatocytes by p66(shc) ablation : Up-regulation of anti-oxidant and anti-apoptotic proteins2008

    • Author(s)
      Sanae Haga
    • Journal Title

      J Hepatol 48

      Pages: 422-432

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of intrasplenic transplantation of immortalized human hepatocytes in the treatment of acetaminophen-induced acute liver failure SCID mice2008

    • Author(s)
      Yosuke Tsuruga
    • Journal Title

      Transplant Proc 40

      Pages: 617-619

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel tumor necrosis factor-alpha suppressant, ONO-SM362, prevents liver failure and promotes liver regeneration after extensive hepatectomy2008

    • Author(s)
      Toshiro Ogata
    • Journal Title

      Surgery 143

      Pages: 545-555

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The novel NF-kappaB inhibitor, Dehydroxymethylepoxyquinomicin, prevents local and remote organ injury following intestinal ischemia/reperfusion in rats2008

    • Author(s)
      Tomomi Suzuki
    • Journal Title

      J Surg Res. 149

      Pages: 69-75

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Establishment of immortalized human hepatocytes by introduction of HPV16 E6/E7 and hTERT as cell sources for liver cell-based therapy2008

    • Author(s)
      Yosuke Tsuruga
    • Journal Title

      Cell Transplant 17

      Pages: 1083-94

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hypothermic preservation effect on mammalian cells of type III antifreeze proteins from notched-fin eelpout2008

    • Author(s)
      Y Hirano
    • Journal Title

      Cryobiology 57

      Pages: 46-51

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 臨床医学の展望2008診断および治療上の進歩 : 移植外科学2008

    • Author(s)
      藤堂省
    • Journal Title

      日本医事新報 4373

      Pages: 75-83

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 肝移植Crossfire : 劇症肝炎と肝移植APOLTの臨床的意義と実施数のGAPを如何に埋める(解説/特集)2008

    • Author(s)
      嶋村剛
    • Journal Title

      肝・胆・膵 56

      Pages: 591-599

    • Related Report
      2008 Annual Research Report
  • [Journal Article] 肝移植Crossfire : 免疫抑制剤と肝移植術後、免疫抑制剤フリーは可能か」(解説/特集)2008

    • Author(s)
      山下健一郎
    • Journal Title

      肝・胆・膵 56

      Pages: 613-624

    • Related Report
      2008 Annual Research Report
  • [Presentation] Inhibition of NF-kB and/or NFAT activation augments or abrogates immunomodulatory effects of donor specific transfusion2008

    • Author(s)
      Ryoichi Goto
    • Organizer
      The Tranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Immunosuppresion by a human anti-CD40 MAB, 4D11, is not abrogated when combined with Tacrolimus on cynomorgus monkey renal transplantation2008

    • Author(s)
      Motohiro Uno
    • Organizer
      The rfranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] A novel human anti-CD40 monoclonal antibody, 4D11, for liver transplantation in non-human primate2008

    • Author(s)
      Tetsu Oura
    • Organizer
      The Tranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] A novel NF-kB inhibitor, DHMEQ, attenuates arterial vasculopathy2008

    • Author(s)
      Motohiro Uno
    • Organizer
      The Tranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Effect of NF-kB Inhibition by DHMEQ on islet transplantation in mice2008

    • Author(s)
      Masaaki Watanabe
    • Organizer
      The Tranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Induction of Immunosuppressive Dendritic Cells by Novel Nuclear Factor-KappaB Inhibitor DHMEQ2008

    • Author(s)
      Takeshi Aoyagi
    • Organizer
      The Tranplantation Society 2008 Concurrent Oral Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] The novel NF-EB inhibitor, DHMEQ prevents local and remote organ injury following intestinal ischemia/reperfusion in rats2008

    • Author(s)
      Tomomi Suzuki
    • Organizer
      The rfranplantation Society 2008 Poster Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] The effect of DHMEQ, a novel NF-kB inhibitor on development of obliterative bronchiolitis in heterotopic murine airway allo-transplantation2008

    • Author(s)
      Yuka Oshima
    • Organizer
      The Tranplantation Society 2008 Poster Session
    • Place of Presentation
      Sydney Convention & E xhibition Centre Sydney, Australia
    • Year and Date
      2008-08-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Regulation of splanchnic circulation in living donor liver transplantation2008

    • Author(s)
      Masahiko Taniguchi
    • Organizer
      Annual Congress of International Liver Transplantation Society 2008 Concurrent Session
    • Place of Presentation
      Le Palais des Congr es de Paris, France
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Impact of induction with Basiliximab in combination with Tac rolimus-based immunosuppressive regimen in living donor liver transplantation2008

    • Author(s)
      Takeshi Aoyagi
    • Organizer
      Annual Congress of International Liver Transplantation Society 2008 Poster Session
    • Place of Presentation
      Le Palais des Congr es de Paris, France
    • Year and Date
      2008-07-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] NF-kBおよびNFAT活性阻害とdonor-specific trallsfusionによる免疫抑制効果2008

    • Author(s)
      後藤了一
    • Organizer
      第12回北海道移植フォーラム
    • Place of Presentation
      北海道大学臨床大講堂、札幌
    • Year and Date
      2008-06-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] 完全ヒトantagonistic抗CD40抗体(4D11)とタクロリムスの併用療法の免疫学的評価2008

    • Author(s)
      宇野元博
    • Organizer
      第12回北海道移植フォーラム
    • Place of Presentation
      北海道大学臨床大講堂、札幌
    • Year and Date
      2008-06-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] Hepatocellular Carcinoma in Liver Transplantation2008

    • Author(s)
      Satoru Todo
    • Organizer
      American Transplant Congress 2008 Invited Speaker
    • Place of Presentation
      Metropolitan Toronto Conventi on Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] Induction of Immunosuppressive Dendritic Cells by a Nove 1 NF-kB inhibitor, DHMEQ2008

    • Author(s)
      Takeshi Aoyagi
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conven tion Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] Regulation of Splanchnic Circulation in Adult to Adult living Donor Liver Transplantation2008

    • Author(s)
      Masahiko Taniguchi
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conventi on Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] Immunological aspects of non-human primates renal transplant recipients treated with a novel human anti-CD40 mAb, 4D11 and Tacrolimus2008

    • Author(s)
      Motohiro Uno
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conven tion Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] A novel nuclear factor kappa B inhibitor, DHMEQ ameliorates development of obliterative bronchiolitis in heterotopic murine airway-transplantation2008

    • Author(s)
      Yuka Oshima
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conven tion Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] A novel NF-kappa B inhibitor, DHMEQ, attenuates arterial vasculopathy2008

    • Author(s)
      Motohiro Uno
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conventi on Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] Inhibition of NF-kB activation augments immunomodulatory effect of donor specific transfusion2008

    • Author(s)
      Ryoichi Goto
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conven tion Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report
  • [Presentation] The influence of calcineurin inhibitors on CD-40-CD154 co-stimulation blockade mediated tolerance induction in heart and liver transplantation2008

    • Author(s)
      Tetsu Oura
    • Organizer
      American Transplant Congress 2008 Poster Session
    • Place of Presentation
      Metropolitan Toronto Conventi on Centre, Toronto, Canada
    • Year and Date
      2008-06-02
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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