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ナノリポソームと超音波を利用した新しい眼球への遺伝子、薬物導入法の開発

Research Project

Project/Area Number 19659452
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Ophthalmology
Research InstitutionKagoshima University

Principal Investigator

坂本 泰二  Kagoshima University, 大学院・医歯学総合研究科, 教授 (10235179)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2008: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2007: ¥2,400,000 (Direct Cost: ¥2,400,000)
Keywordsナノリポソーム / 超音波 / ドラッグデリバリー / 遺伝子 / siRNA
Research Abstract

実験計画書に示したように、in vitroでヒトフィブリンを作成し、超音波、組織プラスミノーゲンアクチベータ(tPA)を投与して、それらが血栓融解に及ぼす影響をD-dimer量を指標として検討した。その結果、血栓融解効率は、超音波、tPA投与のいずれにおいても増加したが、超音波とtPAを同時投与すると著しく増大した。その際、温度上昇は見られなかったことから、この作用メカニズムは純粋に超音波作用によることが推測された。そこで、in vivoにおける作用を調べる目的で、ラット虹彩にYAGレーザーを照射して前房出血を起こし、出血性のフィブリンを作成した。そこに、超音波照射、tPA投与をそれぞれ別々、あるいは同時に施行して線溶活性へ及ぼす影響をフィブリン消失時間を調べることで調べた。その結果、in vitro実験と同様に、温度上昇なしに、線溶活性が著しく亢進し、前房内フィブリンは超音波照射とtPA投与を同時に行うことで明らかに消失時間が短縮した。この結果は、人間のフィブリン治療につながる重要な結果であり、現在Journal of Ultrasound Medicine誌に投稿し、revise中である。次に、本原理を臨床応用する前に、眼球に超音波を照射した際の安全性を調べるための研究を計画した。平成20年9月に鹿児島大学病院倫理委員会に安全性試験についてプロトコールを提出して、許可を得た。現在までのところ、角膜、網膜に問題は見られていない(2人実施)。本年度の結果から、我々の計画は確実に臨床応用へ向かって前進していると言える。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (26 results)

All 2009 2008 2007 Other

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (10 results)

  • [Journal Article] Posturing time after macular hole surgery modified by optical coherence tomography images : a pilot study.2009

    • Author(s)
      Masuyama K, Yamakiri K, Arimura N, Sonoda Y, Doi N, Sakamoto T.
    • Journal Title

      Am J Ophthalmol 147(3)

      Pages: 481-488

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intraoperative characteristics of the posterior vitreous cortex in patients with epiretinal membrane.2008

    • Author(s)
      Yamashita T, Uemura A, Sakamoto T.
    • Journal Title

      Graefes Arch Clin Exp Ophthalmol 246(3)

      Pages: 333-337

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Age-related maculopathy and sunlight exposure evaluated by objective measurement.2008

    • Author(s)
      Hirakawa M, Tanaka M, Tanaka Y, Okubo A, Koriyama C, Tsuji M, Akiba s, Miyamoto K, Hillebr, G, Yamashita T, Sakamoto T.
    • Journal Title

      Br J Ophthalmol 92(5)

      Pages: 630-634

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] One-year results of a multicenter controlled clinical trial of triamcinolone in pars plana vitrectomy.2008

    • Author(s)
      Yamakiri K, Sakamoto T, Noda Y, Nakahara M, Ogino N, Kubota T, Yokoyama M, Furukawa M, Ishibashi T.
    • Journal Title

      Graefes Arch Clin Exp Ophthalmol 246(7)

      Pages: 959-966

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clinical features of early and late stage polypoidal choroidalvasculopathy characterized by lesion size and disease duration.2008

    • Author(s)
      Okubo A, Hirakawa M, Ito M, Sameshima M, Sakamoto T.
    • Journal Title

      Graefe' s Arch Clin Exp Ophthalmol 246(4)

      Pages: 491-499

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Comparative therapy evaluation of intravitreal bevacizumab andtriamcinolone acetonide on persistent diffuse diabetic macular edema.2008

    • Author(s)
      Shimura M, Nakazawa T, Yasuda K, Shiono T, Iida T, Sakamoto T, Nishida K.
    • Journal Title

      Am J Ophthalmol 145(5)

      Pages: 854-861

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Results of visual acuity and foveal thickness in diabetic macular edema after vitrectomy.2007

    • Author(s)
      Shimonagano Y, Makiuchi R, Miyazaki M, Doi N, Uemura A, Sakamoto T.
    • Journal Title

      Jpn J Ophthalmol 51(3)

      Pages: 204-209

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ecurrence of diabetic macular edema after intravitreous injection of triamcinolone following vitrectomy.2007

    • Author(s)
      Shimonagano Y, Doi N, Noda Y, Uemura A, Sakamoto T.
    • Journal Title

      Jpn J Ophthalmol 51(4)

      Pages: 278-284

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reduced incidence of intraoperative complications in a multicenter controlled clinical trial of triamcinolone in vitrectomy.2007

    • Author(s)
      Yamakiri K, Sakamoto T, Noda Y, Nakahara M, Ogino N, Kubota T, Yokoyama M, Furukawa M, Sonoda Y, Yamada T, Doi N, Enaida H, Hata Y, Ishibashi T.
    • Journal Title

      Ophthalmology. 114(2)

      Pages: 289-296

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polylactic Acid for Visualizing the Vitreous Body during Vitrectomy.2007

    • Author(s)
      Yamashita T, Sakamoto T, Yamakiri K, Miura M, Enaida H, Ueno A, Atsumi I, Matsuhisa K, Sakamoto Y, Kida T, Ishibashi T.
    • Journal Title

      Invest Ophthalmol Vis Sci. 48(7)

      Pages: 3277-3282

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 超音波とGasliposomeを併用したドキソルビシンのマウス骨肉腫細胞に対する抗腫瘍効果2007

    • Author(s)
      上野宜功, 園田祥三, 鈴木亮, 横内雅博, 川添泰臣, 丸山一雄, 坂本泰二, 小宮節郎
    • Journal Title

      日本整形外科学会雑誌 81(6)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 眼瞼メラノーマに対する超音波とマイクロバブル併用時のブレオマイシンの抗腫瘍効果の検討2007

    • Author(s)
      園田祥三, 立花克郎, 坂本泰二
    • Journal Title

      超音波医学 34(2)

      Pages: 224-224

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel bubble liposome and ultrasound-mediated gene transfer to ocular surface: RC-1 cells in vitro and conjunctiva in vivo.2007

    • Author(s)
      Yamashita T, Sonoda S, Suzuki R, Arimura N, Tachibana K, Maruyama K, Sakamoto T.
    • Journal Title

      Exp eye Res 85(6)

      Pages: 741-748

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibition of Melanoma by Ultrasound-Microbubble-Aided Drug Delivery Suggests Membrane Permeabilization.2007

    • Author(s)
      Sonoda S, Tachibana K, Uchino E, Yamashita T, Sakoda K, Sonoda KH, Hisatomi T, Izumi Y, Sakamoto T.
    • Journal Title

      Cancer Biology & Therapy. 6(8)

      Pages: 1276-1283

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stromal-Derived Factor-1 and Inflammatory Cytokines in Retinat Vein Occlusion.2007

    • Author(s)
      Ki-i Y, Arimura N, Noda Y, Yamakiri K, Doi N, Hashiguchi T, Maruyama I, Shimura M, Sakamoto T.
    • Journal Title

      Current Eye Research. 32(12)

      Pages: 1065-1072

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Long-term outcomes of visual field defects after indocyanine green-assisted macular hole surgery.

    • Author(s)
      Yamashita T, Uemura A, Kita H. Sakamoto T.
    • Journal Title

      Retina (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 網膜剥離における視細胞死とHigh-mobility group box 1 Protein2009

    • Author(s)
      有村 昇, 喜井裕哉, 橋口照人, 川原幸一, 中村 誠, 園田恭志, 山切啓太, 大久保明子, 丸山征郎, 坂本泰二
    • Organizer
      厚生労働省難治性疾患克服研究事業 網膜脈絡膜・視神経萎縮症調査研究班 平成20年度班会議
    • Place of Presentation
      名古屋市立大学(名古屋市)
    • Year and Date
      2009-01-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] 裂孔原性網膜剥離における硝子体中SDF-1とその他のサイトカイン2009

    • Author(s)
      大塚寛樹, 有村 昇, 山切啓太, 橋口照人, 丸山征郎
    • Organizer
      厚生労働省難治性疾患克服研究事業 網膜脈絡膜・視神経萎縮症調査研究班 平成20年度班会議
    • Place of Presentation
      名古屋市立大学(名古屋市)
    • Year and Date
      2009-01-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] ポリープ状脈絡膜血管症の長期自然経過2009

    • Author(s)
      大久保明子, 〓松徳子, 有村昇, 坂本泰二
    • Organizer
      厚生労働省難治性疾患克服研究事業 網膜脈絡膜・視神経萎縮症調査研究班 平成20年度班会議
    • Place of Presentation
      名古屋市立大学(名古屋市)
    • Year and Date
      2009-01-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] 黄班円孔のうつ伏せ体位期間の考察2008

    • Author(s)
      坂本泰二
    • Organizer
      3^<rd> OWHS Summer School
    • Place of Presentation
      ホテルグリーンパーク津(三重県津市)
    • Year and Date
      2008-08-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] HMGB1 and retinal pigment epithelinal cells.2008

    • Author(s)
      Sakamoto T.
    • Organizer
      International symposium of 13^<th> Chinese Ophthalmology Society Annual Meeting.
    • Place of Presentation
      Hong Kong
    • Year and Date
      2008-06-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] 超音波による眼科領域疾患に対する治療の可能性2008

    • Author(s)
      坂本泰二, 山下敏史, 園田祥三, 立花克郎
    • Organizer
      日本超音波医学会 第81回学術集会
    • Place of Presentation
      神戸国際展示場(神戸市)
    • Year and Date
      2008-05-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] Comparative Therapy Evaluation of Intravitreal Bevacizumab and Triamcinolone Acetonide on Persistent Diffuse Diabetic Macular Edema2008

    • Author(s)
      Shimura M, Nakazawa T, Yasuda K, Shiono T, Iida T, Sakamoto T, Nishida K.
    • Organizer
      The Association for Reseach in Vision and ophthalmology.
    • Place of Presentation
      Fort Lauderdale, U. S. A
    • Related Report
      2008 Annual Research Report
  • [Presentation] Macular Hole Closure in GasFilled Eyes at Early Post-Operative Time Proven by Fourier-Domain Optical Coherence Tomography.2008

    • Author(s)
      Masuyama K, Yamakiri K, Sonoda Y, Doi N, Sakamoto T.
    • Organizer
      The Association for Reseach in Vision and ophthalmology.
    • Place of Presentation
      Fort Lauderdale, U. S. A
    • Related Report
      2008 Annual Research Report
  • [Presentation] Intraocular Pressure Profile of Children With Acute Lymphoblastic Leukemia on a Systemic Corticosteroid2008

    • Author(s)
      Yamashita T, Kodama Y, Kawano Y, Sakamoto T.
    • Organizer
      The Association for Reseach in Vision and ophthalmology.
    • Place of Presentation
      Fort Lauderdale, U. S. A
    • Related Report
      2008 Annual Research Report
  • [Presentation] Concentration of Cytokines After Intravitreous Injection of Bevacizumab or Triamcinolone.2008

    • Author(s)
      Otsuka H, Arimura N, Ki-I Y, Yamakiri K, Doi N, Hashiguchi T, Maruyama I, Sakamoto T.
    • Organizer
      The Association for Reseach in Vision and ophthalmology.
    • Place of Presentation
      Fort Lauderdale, U. S. A
    • Related Report
      2008 Annual Research Report

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

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