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Comprehensive study on HIV-specific ADCC responses using library clinical isolates

Research Project

Project/Area Number 18K08458
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 InstitutionNational Institute of Infectious Diseases

Principal Investigator

Shigeyoshi Harada  国立感染症研究所, エイズ研究センター, 主任研究官 (30508643)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsHIV / AIDS / 抗体
Outline of Final Research Achievements

The main objective of this study was to comprehensively analyze ADCC activity in HIV-infected specimens as a basic research for a novel therapeutic strategy aimed at cure of HIV latently infected cells.
As a result, we succeeded in constructing a system for measuring ADCC activity and obtained basic data on the relationship between clinical course and ADCC activity, as well as the relationship between ADCC activity and reservoir size.
In addition, we developed the "expansion of the anti-HIV antibody enhancer library" for the purpose of enhancing ADCC activity, and succeeded in finding several categories of "anti-HIV antibody enhancers" and pharmacophores that differ not only in their chemical structural framework but also in their binding regions to target Envs. These are expected to contribute to the development of new therapeutic methods.

Academic Significance and Societal Importance of the Research Achievements

現行の抗HIV薬は治癒できないため、生涯服薬継続という最大課題を残す。他方、理論上では、有効なADCC抗体を誘導できる感染症例では、感染細胞排除が進み、レザボアサイズが縮小され、それに伴いウイルス抑制効果および抗ウイルス治療効果が向上する可能性が推察される。本研究により「ADCC活性測定系の最適化」、「抗HIV抗体増強剤ライブラリーの拡充」、および「臨床検体に対する各種解析」を進展することができ、臨床検体におけるADCC活性知見およびADCC活性を惹起させる新規治療法開発の基盤データを得ることができた。これらは新規治療法開発の一助となると考えられる。

Report

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

    (14 results)

All 2021 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Hybrids of Small-Molecule CD4 Mimics with Polyethylene Glycol Units as HIV Entry Inhibitors2021

    • Author(s)
      Kobayakawa Takuya、Tsuji Kohei、Konno Kiju、Himeno Ai、Masuda Ami、Yang Tingting、Takahashi Kohei、Ishida Yusuke、Ohashi Nami、Kuwata Takeo、Matsumoto Kaho、Yoshimura Kazuhisa、Sakawaki Hiromi、Miura Tomoyuki、Harada Shigeyoshi、Matsushita Shuzo、Tamamura Hirokazu
    • Journal Title

      Journal of Medicinal Chemistry

      Volume: 64 Issue: 3 Pages: 1481-1496

    • DOI

      10.1021/acs.jmedchem.0c01153

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Activity and structural analysis of GRL-117C: a novel small molecule CCR5 inhibitor active against R5-tropic HIV-1s2019

    • Author(s)
      Hirotomo Nakata, Kenji Maeda, Debananda Das, Simon B. Chang, Kouki Matsuda, Kalapala Venkateswara Rao, Shigeyoshi Harada, Kazuhisa Yoshimura, Arun K. Ghosh & Hiroaki Mitsuya
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 4828-4828

    • DOI

      10.1038/s41598-019-41080-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Activity and structural analysis of GRL-117C: a novel small molecule CCR5 inhibitor active against R5-tropic HIV-1s.2019

    • Author(s)
      NAKATA H, MAEDA K, DAS D, CHANG SB, MATSUDA K, RAO KV, HARADA S, YOSHIMURA K, GHOSH AK, MITSUYA H.
    • Journal Title

      Scientific Reports.

      Volume: 18 Issue: 5 Pages: 4828-4828

    • DOI

      10.1016/j.bmcl.2019.01.011

    • Related Report
      2019 Research-status Report 2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Isolation and structure determination of a new lasso peptide specialicin based on genome mining.2018

    • Author(s)
      KAWEEWAN I, HEMMI H, KOMAKI H, HARADA S, KODANI S.
    • Journal Title

      Bioorganic & Medical Chemistry

      Volume: 26 Issue: 23-24 Pages: 6050-6055

    • DOI

      10.1016/j.bmc.2018.11.007

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Flexibility of small molecular CD4 mimics as HIV entry inhibitors.2018

    • Author(s)
      KOBAYAKAWA T, OHASHI N, HIROTA Y, TAKAHASHI K, YAMADA Y, NARUMI T, YOSHIMURA K, MATSUSHITA S, HARADA S, TAMAMURA H
    • Journal Title

      Bioorganic & Medical Chemistry

      Volume: 26 Issue: 21 Pages: 5664-5671

    • DOI

      10.1016/j.bmc.2018.10.011

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] HIV侵入阻害剤の開発2020

    • Author(s)
      原田恵嘉
    • Organizer
      第34回日本エイズ学会学術集会・総会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Efficacy of a novel triterpene derivative in combination with neutralizing antibodies against HIV-1 infection2019

    • Author(s)
      Shigeyoshi Harada, Tetsuo Narumi, Tetsuro Matano, Kazuhisa Yoshimura
    • Organizer
      2019 Cold Spring Harbor meeting: Retroviruses
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 新規トリテルペン誘導体の抗HIV作用および耐性機序に対する詳細解析2019

    • Author(s)
      原田恵嘉、引地優太、俣野哲朗、吉村和久
    • Organizer
      第29回 抗ウイルス療法学会学術集会・総会
    • Related Report
      2019 Research-status Report
  • [Presentation] Triterpene derivative NAT-078 as a novel bifunctional HIV-1 entry inhibitor2019

    • Author(s)
      Shigeyoshi Harada, Tetsuo Narumi, Yuta Hikichi, Tetsuro Matano, Kazuhisa Yoshimura
    • Organizer
      10th IAS Conference on HIV Science (IAS 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mutations in the gp41 ectodomain can contribute to HIV-1 resistance to smFIs2018

    • Author(s)
      HARADA S, HIKICHI Y, NARUMI T, YOSHIMURA K
    • Organizer
      26th Conference on Retroviruses and Opportunistic Infections (CROI 2019)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 網羅的Env標的阻害剤ライブラリーの構築-32018

    • Author(s)
      原田恵嘉, 野村渉, 鳴海哲夫, 横山勝, 前田賢次, 竹内怜音, 紺野奇重, 引地優太, 佐藤裕徳, 玉村啓和, 俣野哲朗, 吉村和久
    • Organizer
      第32回 日本エイズ学会学術集会・総会
    • Related Report
      2018 Research-status Report
  • [Presentation] Triterpene derivative NAT-078 as a novel bifunctional HIV-1 entry inhibitor2018

    • Author(s)
      HARADA S, NARUMI T, HIKICHI Y, MATANO T, YOSHIMURA K
    • Organizer
      第66回 日本ウイルス学会学術集会
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 抗HIV活性を有するCD4ミミック化合物2019

    • Inventor(s)
      松下修三, 吉村和久, 玉村啓和, 原田恵嘉, 他4名
    • Industrial Property Rights Holder
      松下修三, 吉村和久, 玉村啓和, 原田恵嘉, 他4名
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2019-195967
    • Filing Date
      2019
    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] オレアノール酸誘導体2018

    • Inventor(s)
      鳴海哲夫, 原田恵嘉, 他4名
    • Industrial Property Rights Holder
      鳴海哲夫, 原田恵嘉, 他4名
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report
    • Overseas

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

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