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Developing of novel diagnostic imaging using specific antibody of fungus

Research Project

Project/Area Number 19K08958
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54030:Infectious disease medicine-related
Research InstitutionOsaka City University

Principal Investigator

Hiroshi Kakeya  大阪市立大学, 大学院医学研究科, 教授 (40398152)

Co-Investigator(Kenkyū-buntansha) 宮崎 義継  国立感染症研究所, 真菌部, 部長 (00311861)
金山 洋介  国立研究開発法人理化学研究所, 生命機能科学研究センター, 研究員 (60435641)
金子 幸弘  大阪市立大学, 大学院医学研究科, 教授 (90469958)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords深在性真菌症 / 特異抗体 / ムーコル / 血清診断 / ELISA / 特異抗原 / 画像検査 / 肺真菌症 / 侵襲性肺アスペルギルス症 / 抗アスペルギルス抗体 / 画像診断 / アスペルギルス症
Outline of Research at the Start

血液悪性疾患等の高度免疫不全患者に見られる深在性真菌症である侵襲性肺アスペルギルス症の補助診断には、菌体のガラクトマンナン抗原を検出する血清診断検査が利用されているが, その感度や特異度は限られ, 新規の検査法の開発が期待されている。本研究は、新規の特異抗体を用いて、PET/CTにて抗原を検出する特異的画像診断の開発を試みる.本研究は,非侵襲的なアスペルギルス症の診断に繋がることが期待される.

Outline of Final Research Achievements

As early diagnosis and early treatment improve the prognosis of mucormycosis, the development of a sensitive early diagnostic method is important. We had previously identified a Rhizopus-specific antigen (RSA) by signal sequence trapping and retrovirus-mediated expression (SST-REX), and evaluated its utility as a diagnostic antigen by constructing a sandwich enzyme-linked immunosorbent assay (ELISA) system to detect serum RSA levels in inoculated mice. In this study, we used the RSA-specific rabbit monoclonal antibodies to develop of novel diagnostic imaging. As a result, RSA monoclonal antibody can detect R. oryzae in lungs of infected mice by immunohistochemistry methods, but RSA antibody-gold nanoparticles conjugate can not detect fungus by electron microscope. Further examinations are required.

Academic Significance and Societal Importance of the Research Achievements

深在性真菌症の早期診断のための培養検査の感度は低く、血清診断や遺伝子検査が期待されるが、血液を検体とした抗原検査ではその感度や特異度にも限界が報告されている。癌領域では特異抗体を用いた癌の転移の局在を画像検査にて検出する試みが行われているが、感染症領域においては研究が十分ではない。本研究では、新規の特異抗体を用いて深在性真菌症の画像診断の開発を試みるための基礎研究を行った。本研究の発展は予後不良な深在性真菌症の非侵襲的な診断法の開発につながることが期待される。さらなる適切な抗体の選択が重要と考えられ、研究の継続が必要と考える。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2022 2021 2020 2019 Other

All Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Medical Mycology Seen Through a One Health Approach2022

    • Author(s)
      Kakeya H
    • Journal Title

      Medical Mycology Journal

      Volume: 63 Issue: 1 Pages: 11-15

    • DOI

      10.3314/mmj.22.001

    • NAID

      130008165011

    • ISSN
      2185-6486, 2186-165X
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of coronavirus disease 2019 on infectious disease treatment and infection control at a tertiary hospital in Japan2022

    • Author(s)
      Imoto W, Yamada K, Kuwabara G, Shibata W, Sakurai N, Nonose Y, Okada Y, Nakie K, Fujita A, Kakeya H.
    • Journal Title

      J Infect Chemother

      Volume: 28 Issue: 5 Pages: 616-622

    • DOI

      10.1016/j.jiac.2022.01.008

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019988

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Body Mass Index of Elderly Patients with Normal Renal Function as a Determining Factor for Initial Vancomycin Regimen Designing2022

    • Author(s)
      Sakurai N, Kawaguchi H, Kuwabara G, Imoto W, Shibata W, Yamada K, Nakamura Y, Kakeya H.
    • Journal Title

      Chemotherapy

      Volume: 67 Issue: 3 Pages: 193-200

    • DOI

      10.1159/000522455

    • URL

      https://ocu-omu.repo.nii.ac.jp/records/2019759

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In which pneumonia cases should we consider treatments for Stenotrophomonas maltophilia?2021

    • Author(s)
      4.Imoto W, Yamada K, Kuwabara G, Yamairi K, Shibata W, Oshima K, Nakaie K, Watanabe T, Asai K, Kaneko Y, Kawaguchi T, Kakeya H.
    • Journal Title

      J Hosp Infect

      Volume: 111 Pages: 169-175

    • DOI

      10.1016/j.jhin.2021.01.011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Risk factors for acute kidney injury in vancomycin and piperacillin/tazobactam combination therapy: A retrospective study.2021

    • Author(s)
      9.Yamashita Y, Kawaguchi H, Yano T, Sakurai N, Shibata W, Oshima K, Imai T, Yamada K, Nakamura Y, Nagayama K, Kakeya H.
    • Journal Title

      J Infect Chemother

      Volume: 27 Issue: 11 Pages: 1614-1620

    • DOI

      10.1016/j.jiac.2021.07.017

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Detection of Rhizopus-specific antigen in human and murine serum and bronchoalveolar lavege.2020

    • Author(s)
      Shibata W, Niki M, Sato K, Fujimoto H, Yamada K, Watanabe T, Miyazaki Y, Asai K, Obata Y, Taro T, Kawaguchi T, Kaneko Y, Kakeya H
    • Journal Title

      Medical Mycology

      Volume: - Issue: 7 Pages: 958-964

    • DOI

      10.1093/mmy/myaa001

    • Related Report
      2020 Research-status Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 特別講演「深在性真菌症のUp-To-Date」2022

    • Author(s)
      掛屋 弘
    • Organizer
      日本医真菌学会 東海・北陸支部 第6回深在性真菌症部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 深在性真菌症Up-To-Date2021

    • Author(s)
      掛屋 弘
    • Organizer
      第69回日本化学療法学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 会長企画:Expertが斬る「掛屋弘がムーコル症を斬る」2021

    • Author(s)
      掛屋 弘
    • Organizer
      第36回日本環境感染学会総会・学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新規特異抗体を用いた侵襲性肺アスペルギルス症の新規画像診断法開発の試み2021

    • Author(s)
      柴多 渉,井本和紀,山入和志,山田康一,金子幸弘,山越 智,宮崎義継,掛屋 弘.
    • Organizer
      第65回日本医真菌学会総会・学術集会/真菌症フォーラム2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] シンポジウム7「ムーコル症 Up-to date」2021

    • Author(s)
      柴多 渉,掛屋 弘
    • Organizer
      第69回日本化学療法学会西日本支部総会・第91回日本感染症学会西日本地方会学術集会・第64回日本感染症学会中日本地方会学術集会 合同学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 糸状菌診断のピットフォールと新たな展開 2.新しい血清診断法2020

    • Author(s)
      掛屋 弘
    • Organizer
      第94回日本感染症学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Detection of Rhizopus oryzae specific antigen (RSA) in serum and bronchial alveolar lavage is a potential early diagnostic marker in mucormycosis by R. oryzae2019

    • Author(s)
      Wataru Shibata, Koichi Yamada, Mamiko Niki, Satoshi Yamagoe, Yoshitsugu Miyazaki, Yukihiro Kaneko, Hiroshi Kakeya.
    • Organizer
      IDWeek2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Advance in filamentous fungi infections. 「Recent approach to the early diagnosis of mucormycoses2019

    • Author(s)
      Hiroshi Kakeya
    • Organizer
      The 7th Asia-Pacific Society for Medical Mycology Congress.
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ムーコル症のトピックス2019

    • Author(s)
      掛屋 弘
    • Organizer
      第30回日本臨床微生物学会総会・学術集会
    • Related Report
      2019 Research-status Report
  • [Remarks] 大阪市立大学大学院 医学研究科 臨床感染制御学

    • URL

      http://www.med.osaka-cu.ac.jp/infectioncontrol/research_achievements/index.shtml

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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