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Structure optimization of compounds to confine HIV in a cell and induce apoptosis aiming at drugs

Research Project

Project/Area Number 20H03365
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47010:Pharmaceutical chemistry and drug development sciences-related
Research InstitutionKumamoto University

Principal Investigator

Fujita Mikako  熊本大学, 大学院生命科学研究部(薬), 特任教授 (00322256)

Co-Investigator(Kenkyū-buntansha) 大塚 雅巳  熊本大学, 大学院生命科学研究部(薬), 客員教授 (40126008)
立石 大  熊本大学, 薬学部, 客員准教授 (50846011)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2020: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
KeywordsHIV / エイズ根絶 / イノシトールリン脂質 / アポトーシス / Gag / プロドラッグ / IP6 / X線結晶解析 / HIV根絶 / プロドラッグ体 / エイズ完全治癒 / HIV潜伏感染細胞 / HIV Gagタンパク質 / Gag MAドメイン / タンパク質発現
Outline of Research at the Start

1980年代にエイズの世界的流行が始まった頃、これは死の病であった。その後に原因ウイルスHIVに対する薬が多数開発され、エイズ発症抑制が可能となった。しかし体内に潜むHIVを完全に除去することはできない。この完全治癒が、現在のエイズ治療における最大の目標である。研究代表者らは、L-HIPPOと名付けた非天然型イノシトールリン脂質がHIV放出を抑制し、感染細胞にHIVを閉じ込めアポトーシスを誘導するユニークな現象を報告した。HIV感染細胞の除去を目指してこの現象を臨床応用まで発展させるため、本研究では細胞膜に透過しやすく改変したL-HIPPO誘導体の構造を最適化し、医薬品候補を創出する。

Outline of Final Research Achievements

We already reported that an artificial phosphoinositide named L-HIPPO binds to the MA domain of HIV Gag protein, suppresses viral release, and induces apoptosis by lock-in of HIV inside of a cell. In this study, we aimed at synthesis of a prodrug of L-HIPPO and its appropriate structural derivatization. First, the prodrug was synthesized, and this compound was shown to suppress HIV and lower its infectivity. Furthermore, structural analysis of a complex of Gag MA domain and L-HIPPO was tried. Although this trial has not reached the goal, we succeeded to reveal the crystal structure of a complex of Gag MA and IP6, which is a part of L-HIPPO structure. Based on this, structures of L-HIPPO derivatives which strongly bind to MA were predicted.

Academic Significance and Societal Importance of the Research Achievements

現在のエイズ治療の最大の目標は、患者体内からのHIV潜伏感染細胞の除去である。ここで取り組む感染細胞にアポトーシスを誘導する現象は、この目標達成に繋がる新しい概念をもつエイズ治療法となる。また用いる化合物は、人工イノシトールリン脂質である。これまでイノシトールリン脂質は、特に負電荷を多くもつことから医薬品のリードとして考えられて来なかった。今回は負電荷を多くのプロドラッグで覆うことでその欠点を克服したが、これは新しい医薬品の創製に繋がる。またHIV Gag MAドメインとIP6の複合体構造を解いたが、これにより生体分子IP6によるHIV放出の制御機構を新たに提唱することができた。

Report

(2 results)
  • 2023 Final Research Report ( PDF )
  • 2020 Annual Research Report
  • Research Products

    (14 results)

All 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (11 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (1 results) Remarks (1 results)

  • [Int'l Joint Research] コチ大学(トルコ)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] A new series of antileukemic agents: Design, synthesis, in vitro and in silico evaluation of thiazole-based ABL1 kinase inhibitors2021

    • Author(s)
      Zeytun, E., Altintop, M.D., Sever, B., Ozdemir, A., Ellakwa, D.E., Ocak, Z., Ciftci, H.I., Otsuka, M., Fujita, M., and Radwan, M.O.
    • Journal Title

      Anti-Cancer Agents in Medicinal Chemistry

      Volume: 21 Issue: 9 Pages: 1099-1109

    • DOI

      10.2174/1871520620666200824100408

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Design and synthesis of novel quinoline/chalcone/1,2,4-triazole hybrids as potent antiproliferative agent targeting EGFR and BRAFV600E kinases2021

    • Author(s)
      Mohassab Aliaa M.、Hassan Heba A.、Abdelhamid Dalia、Gouda Ahmed M.、Youssif Bahaa G.M.、Tateishi Hiroshi、Fujita Mikako、Otsuka Masami、Abdel-Aziz Mohamed
    • Journal Title

      Bioorganic Chemistry

      Volume: 106 Pages: 104510-104510

    • DOI

      10.1016/j.bioorg.2020.104510

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Discovery of anti-cell migration activity of an anti-HIV heterocyclic compound by identification of its binding protein hnRNP M2021

    • Author(s)
      Kamo Masahiro、Ito Miu、Toma Tsugumasa、Gotoh Haruna、Shimozono Rie、Nakagawa Riko、Koga Ryoko、Monde Kazuaki、Tateishi Hiroshi、Misumi Shogo、Otsuka Masami、Fujita Mikako
    • Journal Title

      Bioorganic Chemistry

      Volume: 107 Pages: 104627-104627

    • DOI

      10.1016/j.bioorg.2021.104627

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Design and Synthesis of an Anthranyl Bridged Optically Active Dinuclear Iron(II)-Ligand and Evaluation of DNA-Cleaving Activity.2021

    • Author(s)
      Ichimaru, Y., Kato, K., Okuno, Y., Yamaguchi, Y., Jin, W., Fujita, M., Otsuka, M., Imai, M., and Kurosaki, H.
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 35 Pages: 127782-127782

    • DOI

      10.1016/j.bmcl.2021.127782

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Activation of Ligand Reaction on an Iron Complex: H/D Exchange Reaction of a Low-Spin Bis[2-(Pyridylmethylidene)-1-(2-pyridyl)methylamine]iron(II) Complex2020

    • Author(s)
      Imai, M., Kato, K., Yamaguchi, Y., Fujita, M., Otsuka, M, and Kurosaki, H.
    • Journal Title

      Chemical and Pharmaceutical Bulletin

      Volume: 68 Issue: 8 Pages: 713-716

    • DOI

      10.1248/cpb.c20-00383

    • NAID

      130007883294

    • ISSN
      0009-2363, 1347-5223
    • Year and Date
      2020-08-01
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HSP70 induction by bleomycin metal core analogs2020

    • Author(s)
      Ali Taha F.S.、Taira Naomi、Iwamaru Kana、Koga Ryoko、Kamo Masahiro、Radwan Mohamed O.、Tateishi Hiroshi、Kurosaki Hiromasa、Abdel-Aziz Mohamed、Abuo-Rahma Gamal El-Din A.A.、Beshr Eman A.M.、Otsuka Masami、Fujita Mikako
    • Journal Title

      Bioorganic & Medicinal Chemistry Letters

      Volume: 30 Issue: 7 Pages: 127002-127002

    • DOI

      10.1016/j.bmcl.2020.127002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Antiproliferative activity of Turkish marine extracts: A purple sponge components induce apoptosis with multiple kinases inhibition2020

    • Author(s)
      Ciftci, H.I., Can, M., Ellakwa, D., Suner, S., Ibrahim, M., Oral, A., Sekeroglu, N., Ozalp, B., Otsuka, M., Fujita, M., Alparslan, M., and Radwan, M.
    • Journal Title

      Investigational New Drugs

      Volume: 38 Issue: 5 Pages: 1326-1333

    • DOI

      10.1007/s10637-020-00911-8

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Interruption of Vif/Elongin C interaction: In silico and experimental elucidation of the underlying molecular mechanism of benzimidazole-based APOBEC3G stabilizers2020

    • Author(s)
      Radwan Mohamed O.、Takaya Daisuke、Koga Ryoko、Iwamaru Kana、Tateishi Hiroshi、Ali Taha F.S.、Takaori-Kondo Akifumi、Otsuka Masami、Honma Teruki、Fujita Mikako
    • Journal Title

      Bioorganic & Medicinal Chemistry

      Volume: 28 Issue: 8 Pages: 115409-115409

    • DOI

      10.1016/j.bmc.2020.115409

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The stability of HIV-2 Vpx and Vpr proteins is regulated by the presence or absence of zinc-binding sites and poly-proline motifs with distinct roles2020

    • Author(s)
      Shimagaki Kazunori、Koga Ryoko、Fujino Haruna、Ahagon Ami、Tateishi Hiroshi、Otsuka Masami、Yamaguchi Yoshihiro、Fujita Mikako
    • Journal Title

      Journal of General Virology

      Volume: 101 Issue: 9 Pages: 997-1007

    • DOI

      10.1099/jgv.0.001456

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure activity study of S-trityl-cysteamine dimethylaminopyridine derivatives as SIRT2 inhibitors: Improvement of SIRT2 binding and inhibition.2020

    • Author(s)
      Radwan, M.O., Ciftci, H.I., Ali, T.F.S., Koga, R., Tateishi, H., Nakata, A., Ito, A., Yoshida, M., Fujita, M., Otsuka, M.
    • Journal Title

      Bioorg. Med. Chem. Lett.

      Volume: 30(19) Issue: 19 Pages: 127458-127458

    • DOI

      10.1016/j.bmcl.2020.127458

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] In Vitro and In Silico Evaluation of Anticancer Activity of New Indole-Based 1,3,4-Oxadiazoles as EGFR and COX-2 Inhibitors2020

    • Author(s)
      Belgin Sever, Mehlika Dilek Altintop, Ahmet Ozdemir, Gulsen Akalin Ciftci, Doha E. Ellakwa, Hiroshi Tateishi, Mohamed O. Radwan, Mahmoud A. A. Ibrahim, Masami Otsuka, Mikako Fujita, Halil I. Ciftci and Taha F. S. Ali
    • Journal Title

      Molecules

      Volume: 25 Issue: 21 Pages: 5190-5190

    • DOI

      10.3390/molecules25215190

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] HIVリザーバーの除去または不活化を目指した新規治療法開発2020

    • Author(s)
      藤田 美歌子
    • Organizer
      第34回日本エイズ学会学術集会・総会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 熊本大学大学院生命科学研究部生体機能化学共同研究講座研究紹介

    • URL

      http://www.pharm.kumamoto-u.ac.jp/Labs/bunsigouseiHP/research/index.html

    • Related Report
      2020 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-03-27  

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