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Clinical application of photodynamic antimicrobial chemotherapy for infectious keratitis

Research Project

Project/Area Number 18K09411
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56060:Ophthalmology-related
Research InstitutionHiroshima University

Principal Investigator

Chikama Taiichiro  広島大学, 医系科学研究科(医), 准教授 (00263765)

Co-Investigator(Kenkyū-buntansha) 高 知愛  広島大学, 医系科学研究科(医), 准教授 (70314797)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords光線力学療法 / 角膜感染症 / 薬剤耐性 / 抗病原微生物 / アカントアメーバ
Outline of Final Research Achievements

The ultimate goal of this study is the clinical application of our photodynamic antimicrobial chemotherapy (PACT) using a photosensitizer (TONS504) and a light irradiator for infectious keratitis.
During this study period, we established a model of Acanthamoeba keratitis using Japanese white rabbits. Then, our TONS504-PACT achieved excellent therapeutic effects over 50% cases. At the same time, histological examination confirmed no adverse impact on the corneal endothelium and retina. As comprehensive results, the efficacy and safety data for TONS504-PACT have been steadily collected and are steadily approaching clinical application.

Academic Significance and Societal Importance of the Research Achievements

病原微生物の種類を問わず殺病原体効果が期待できる抗微生物化学療法( PACT)を用いた新しい角膜感染症治療法の臨床応用の実現をめざす研究である。
この治療法が確立すれば、薬剤耐性病原微生物による角膜感染症にも早期から対処でき、視機能維持に大きく貢献することになる。また、抗微生物薬の使用を減らすことで新たな薬剤耐性(AMR)病原微生物の出現抑制につながることも期待できる。さらに、視機能低下や長期にわたる治療により生じる労働力の損失の軽減にも寄与すると考えている。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2021 2020 2019 2018

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (14 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Efficacy of Photodynamic Anti‐Microbial Chemotherapy for Acanthamoeba Keratitis In Vivo2020

    • Author(s)
      Dwia Pertiwi Yunialthy、Chikama Taiichiro、Sueoka Kentaro、Ko Ji‐Ae、Kiuchi Yoshiaki、Onodera Makoto、Sakaguchi Takemasa
    • Journal Title

      Lasers in Surgery and Medicine

      Volume: - Issue: 5 Pages: 166-171

    • DOI

      10.1002/lsm.23355

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Antifungal efficacy of photodynamic therapy with TONS 504 for pathogenic filamentous fungi.2019

    • Author(s)
      Sueoka K, Chikama T, Pertiwi YD, Ko JA, Kiuchi Y, Sakaguchi T, Obana A.
    • Journal Title

      Lasers in Medical Science

      Volume: 34 Issue: 4 Pages: 743-747

    • DOI

      10.1007/s10103-018-2654-y

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Antimicrobial Photodynamic Therapy with the photosensitizer TONS504 eradicates Acanthamoeba2019

    • Author(s)
      Pertiwi YD, Chikama T, Sueoka K, Ko JA, Kiuchi Y, Onodera M, Sakaguchi T
    • Journal Title

      Photodiagnosis Photodyn Ther

      Volume: 28 Pages: 166-171

    • DOI

      10.1016/j.pdpdt.2019.08.035

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Time-dependent antimicrobial effect of photodynamic therapy with TONS 504 on Pseudomonas aeruginosa2018

    • Author(s)
      Sueoka K, Chikama T, Latief MA, Ko JA, Kiuchi Y, Sakaguchi T, Obana A
    • Journal Title

      Lasers in Medical Science

      Volume: - Issue: 7 Pages: 1455-1460

    • DOI

      10.1007/s10103-018-2490-0

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 光感受性物質TONS504とメチレンブルーの光線力学的抗微生物効果の比較2021

    • Author(s)
      宍道紘一郎、近間泰一郎、末岡健太郎、Pertiwi YD、坂口剛正、木内良明、尾花 明
    • Organizer
      角膜カンファランス2021
    • Related Report
      2020 Annual Research Report
  • [Presentation] アカントアメーバ角膜炎に対する光線力学的抗微生物化学療法の有効性と安全性2021

    • Author(s)
      近間泰一郎、Pertiwi YD、末岡健太郎、宍道紘一郎、木内良明、高 知愛、坂口剛正
    • Organizer
      第125回日本眼科学会総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Efficacy and safety of photodynamic antimicrobial chemotherapy for Acanthamoeba keratitis2021

    • Author(s)
      Chikama T, Pertiwia YD, Sueoka K, Shinji K, Ko JA, Kiuchi Y, Sakaguchi T
    • Organizer
      ACS2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TONS504とメチレンブルーのS.aureusとP.aeruginosaに対する光線力学的抗微生物効果の比較2020

    • Author(s)
      宍道紘一郎、近間泰一郎、末岡健太郎、Pertiwi YD、坂口剛正、木内良明、尾花 明
    • Organizer
      LASER WEEK IN KOCHI
    • Related Report
      2020 Annual Research Report
  • [Presentation] In vivo effectiveness TONS504-PACT on Acanthamoeba Keratitis2020

    • Author(s)
      Pertiwi YD、近間泰一郎、末岡健太郎、高 知愛、木内良明、小野寺 一、坂口剛正
    • Organizer
      角膜カンファランス2020
    • Related Report
      2019 Research-status Report
  • [Presentation] 光感受性物質TONS504とメチレンブルーのS. aureusに対する光線力学的抗微生物効果の比較2019

    • Author(s)
      宍道紘一郎、近間泰一郎、末岡健太郎、Pertiwi YD、坂口剛正、木内良明、尾花 明
    • Organizer
      第29回日本光線力学学会
    • Related Report
      2019 Research-status Report
  • [Presentation] TONS504 mediated photodynamic antimicrobial chemotherapy for the treatment of Acanthamoeba keratitis in vivo2019

    • Author(s)
      Pertiwi YD、近間泰一郎、末岡健太郎、高 知愛、木内良明、小野寺一、坂口剛正
    • Organizer
      第29回日本光線力学学会
    • Related Report
      2019 Research-status Report
  • [Presentation] TONS504 mediated photodynamic antimicrobial chemotherapy inactivation for Acanthamoeba keratitis in rabbits in vivo.2019

    • Author(s)
      Pertiwi YD, Chikama T, Sueoka K, Ko JA, Kiuchi Y
    • Organizer
      ARVO 2019 Annual Meeting
    • Related Report
      2019 Research-status Report
  • [Presentation] 家兎角膜感染モデルに対する光線力学的抗微生物化学療法の臨床的および組織学的検討2018

    • Author(s)
      末岡健太郎、近間泰一郎、高 知愛、坂口剛正、木内良明
    • Organizer
      第122回日本眼科学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Clinical and Histopathologic Evaluation of the Efficacy of Photodynamic Antimicrobial Chemotherapy for Experimental Keratitis2018

    • Author(s)
      Chikama T, Sueoka K, Ko JA, Sakaguchi T, Kiuchi Y
    • Organizer
      ARVO-2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] In Vitro Effectiveness of Photodynamic Antimicrobial Chemotherapy with TONS504 for Eradication of Acanthamoeba.2018

    • Author(s)
      Yunialthy D. P, Chikama T, Sueoka K, Ko JA, Kiuchi Y
    • Organizer
      ARVO-2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] In vitro Effectiveness of Photodynamic Antimicrobial Chemotherapy with TONS504 for Eradication of Acanthamoeba2018

    • Author(s)
      Chikama T, Pertiwi Y.D, Sueoka K., Ko JA, Kiuchi Y, Onodera M, Sakaguchi T
    • Organizer
      ISER 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 糸状真菌に対する光線力学的抗微生物化学療法の効果2018

    • Author(s)
      宍道紘一郎、末岡健太郎、近間泰一郎、高 知愛、坂口剛正、木内良明
    • Organizer
      LASER WEEK IN TOKYO
    • Related Report
      2018 Research-status Report
  • [Presentation] Efficacy of Photodynamic Antimicrobial Chemotherapy with TONS504 on Acanthamoeba eradication2018

    • Author(s)
      ペルティウィ ユニアルティデウィア、近間泰一郎、末岡健太郎、高 知愛、木内良明、小野寺 一、坂口剛正
    • Organizer
      LASER WEEK IN TOKYO
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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