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Multi-faced analysis of HIV-1 latency

Research Project

Project/Area Number 17K08853
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Virology
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Takeuchi Hiroaki  東京医科歯科大学, 大学院医歯学総合研究科, 講師 (20451867)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
KeywordsHIV潜伏感染 / エイズ / プロウイルス / 転写制御 / HIV Tat / HIV-1潜伏感染メカニズム / HIV-1 Tat / 宿主因子 / プロウイルス特異的再活性化誘導剤 / HIV-1潜伏機構 / HIV / 潜伏感染 / リザーバー / ウイルス / 感染症 / 遺伝子 / 細胞 / タンパク質
Outline of Final Research Achievements

Currently, the establishment of HIV-1 persistent infection is still a major barrier to complete viral eradication, which has remained elusive because latently infected reservoirs can evade host antiviral immune responses as well as combination antiretroviral therapy. There is therefore still an unmet need to develop new anti-HIV compounds which efficiently reactivate latent HIV-1 provirus. In this study, we found that host cell kinase MELK represses HIV-1 transcription in persistent-infected cells. Furthermore, we employed a genome-wide RNAi screen in newly established latently infected model monocyte-linage cell clone, THP-1 NanoLuc , capable of expressing NanoLuc (Nluc) protein in the nef region of HIV-1 provirus and found that Nluc activity in MAP kinase-related protein kinase (MAPK-RPK)-depleted clone was markedly enhanced, suggesting that MAPK-RPK is required for maintaining HIV-1 latency.

Academic Significance and Societal Importance of the Research Achievements

HIV-1治癒にはリザーバー細胞の効果的な排除が必須である。現時点において個体内におけるリザーバー細胞集団の排除に有効な方法を示せていないことから、新規LRAsの開発および新たなリザーバー細胞排除法の基盤確立が早急に求められている。本研究で同定された宿主因子:MAPK-RPKは、(1)宿主由来の転写因子による転写活性制御に影響を及ぼしていないこと、(2)様々な潜伏感染モデル細胞に共通して転写抑制活性を有すること、(3)HIV-1 Tatタンパク質によるHIV-1転写促進メカニズムの特異的制御活性を有すること、を明らかにしたことから、本研究はHIV治癒戦略の大きな進展に寄与することが考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 2018

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results,  Open Access: 7 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Vpu of a Simian Immunodeficiency Virus Isolated from Greater Spot-Nosed Monkey Antagonizes Human BST-2 via Two AxxxxxxxW Motifs2020

    • Author(s)
      Yao W, Yoshida T, Hashimoto S, Takeuchi H, Strebel K, Yamaoka S.
    • Journal Title

      Journal of Virology

      Volume: 94 Issue: 2

    • DOI

      10.1128/jvi.01669-19

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PATZ1 is required for efficient HIV-1 infection2019

    • Author(s)
      Aziati ID, Yoshida T, Hamano A, Maeda K, Takeuchi H, Yamaoka S.
    • Journal Title

      Biochem Biophys Res Commun.

      Volume: 514 Issue: 2 Pages: 538-544

    • DOI

      10.1016/j.bbrc.2019.04.175

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HIV-1 DNA-capture-seq is a useful tool for the comprehensive characterization of HIV-1 provirus2019

    • Author(s)
      Iwase Saori C.、Miyazato Paola、Katsuya Hiroo、Islam Saiful、Yang Benjy Tan Jek、Ito Jumpei、Matsuo Misaki、Takeuchi Hiroaki、Ishida Takaomi、Matsuda Kouki、Maeda Kenji、Satou Yorifumi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 12326-12326

    • DOI

      10.1038/s41598-019-48681-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Discovery and Development of Anti-HIV Therapeutic Agents: Progress Towards Improved HIV Medication2019

    • Author(s)
      Maeda Kenji、Das Debananda、Kobayakawa Takuya、Tamamura Hirokazu、Takeuchi Hiroaki
    • Journal Title

      Current Topics in Medicinal Chemistry

      Volume: 19 Issue: 18 Pages: 1621-1649

    • DOI

      10.2174/1568026619666190712204603

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] eIF4A2 is a host factor required for efficient HIV-1 replication2018

    • Author(s)
      Ndzinu Jerry Kwame、Takeuchi Hiroaki、Saito Hideki、Yoshida Takeshi、Yamaoka Shoji
    • Journal Title

      Microbes and Infection

      Volume: 20 Issue: 6 Pages: 346-352

    • DOI

      10.1016/j.micinf.2018.05.001

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Robust Enhancement of Lentivirus Production by Promoter Activation2018

    • Author(s)
      Suzuki Naoto、Yoshida Takeshi、Takeuchi Hiroaki、Sakuma Ryuta、Sukegawa Sayaka、Yamaoka Shoji
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1

    • DOI

      10.1038/s41598-018-33042-5

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gold Nanoparticles with Ligand/Zwitterion Hybrid Layer for Individual Counting of Influenza A H1N1 Subtype Using Resistive Pulse Sensing2018

    • Author(s)
      Horiguchi Yukichi、Goda Tatsuro、Matsumoto Akira、Takeuchi Hiroaki、Yamaoka Shoji、Miyahara Yuji
    • Journal Title

      Langmuir

      Volume: 35 Issue: 5 Pages: 1798-1806

    • DOI

      10.1021/acs.langmuir.8b01586

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] BI-2536 and BI-6727, dual Polo-like kinase/bromodomain inhibitors, effectively reactivate latent HIV-12018

    • Author(s)
      Gohda Jin、Suzuki Kazuo、Liu Kai、Xie Xialin、Takeuchi Hiroaki、Inoue Jun-ichiro、Kawaguchi Yasushi、Ishida Takaomi
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 3521-3521

    • DOI

      10.1038/s41598-018-21942-5

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Genome-wide RNAi screen identifies MAPK-RPK required for HIV-1 proviral silencing in non-T cell reservoir cell-line model.2019

    • Author(s)
      Hiroaki Takeuchi
    • Organizer
      The 9th international workshop on HIV persistence during therapy
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multiple approach to HIV cure: Towards a better understanding of the precise cellular regulation of HIV-1 infection.2019

    • Author(s)
      Hiroaki Takeuchi
    • Organizer
      France-Japan Symposium on HIV and hepatitis basic research
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dynamics and Regulation of HIV-1 Uncoating and Nuclear Movements of HIV-1 Complexes: Our Recent Advances and Future Perspectives.2018

    • Author(s)
      Hiroaki Takeuchi
    • Organizer
      CAIDS/ACC/ARC Joint Symposium
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] HIV-1感染細胞内動態に関わる宿主タンパク質の同定および機能解析2018

    • Author(s)
      武内 寛明
    • Organizer
      第20回白馬シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] HIV潜伏感染を制御する宿主因子の同定および解析2018

    • Author(s)
      武内 寛明
    • Organizer
      第32回日本エイズ学会学術集会
    • Related Report
      2018 Research-status Report
  • [Book] 日本エイズ学会誌2018

    • Author(s)
      武内 寛明
    • Total Pages
      165
    • Publisher
      日本エイズ学会
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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