• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of remission mechanism by administration of anti-HIV antibody using single cell RNA-seq

Research Project

Project/Area Number 21K05989
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionKumamoto University

Principal Investigator

Kuwata Takeo  熊本大学, ヒトレトロウイルス学共同研究センター, 特任准教授 (70346063)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords抗体 / HIV / 寛解 / single cell RNA-seq / SHIV / カニクイザル / RNA-seq / シングルセル
Outline of Research at the Start

より投与回数の少ない抗HIV-1薬候補として、抗HIV抗体の解析を行う。すでに、SHIV感染サル・モデルにおいて、抗HIV抗体の投与によってウイルス増殖を持続的に抑制する結果を得ており、CD8+細胞のウイルス抑制への関与が示唆されています。抗体投与後のリンパ節のシングルセルRNA-seqを行ってCD8+細胞や樹状細胞などの細胞群の遺伝子発現を調べ、ウイルス抑制と相関する細胞群や活性化を特定し、ウイルス抑制に働くCD8+細胞の誘導メカニズムをあきらかにします。

Outline of Final Research Achievements

To clarify the mechanism of HIV remission, no viral replications in the absence of ART, single cell RNA sequencing were performed using cells from lymph nodes of cynomolgus monkeys, which were infected with SHIV and suppressed viral replication by antibody administration. New marker genes for cynomolgus monkeys were identified by clustering cells based on the gene expression pattern, and cells were classified into T, B, centroblast, centrocyte, plasmablast, NK, monocyte, mDC and pDC. Gene expression patterns of these cell subsets were compared between monkeys suppressing viral replication and those showing no viral suppression, while the gene expression pattern that was associated with viral suppression was not identified. More samples and the detailed analysis of small cell subsets will be required to clarify the mechanism of HIV remission.

Academic Significance and Societal Importance of the Research Achievements

効果的な治療薬の開発によってHIV感染者の治療は劇的に進歩しましたが、それでも抗ウイルス薬の服用を生涯続ける必要があり、感染者にとっては大きな負担です。また、感染者が年々増加することによる医療費の増加も将来的には大きな問題となります。本研究では、抗HIV抗体の投与によってウイルス増殖を持続的に抑えるメカニズムの解析を行いました。ウイルス抑制にはCD8+細胞が大きな役割を果たしていることがサル・モデルで示唆されていますが、そのメカニズムは分かっていません。本研究を発展させることで、抗ウイルス薬の投与なしでウイルス増殖を持続的に抑制する免疫療法の開発につながると考えています。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021

All Journal Article (9 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (6 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 3 results)

  • [Journal Article] Factors Associated with Neutralizing Antibody Responses following 2-Dose and 3rd Booster Monovalent COVID-19 Vaccination in Japanese People Living with HIV2024

    • Author(s)
      Ngare Isaac、Tan Toong Seng、Toyoda Mako、Kuwata Takeo、Takahama Soichiro、Nakashima Eriko、Yamasaki Naoya、Motozono Chihiro、Fujii Teruhisa、Minami Rumi、Barabona Godfrey、Ueno Takamasa
    • Journal Title

      Viruses

      Volume: 16 Issue: 4 Pages: 555-555

    • DOI

      10.3390/v16040555

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Idiotopes of antibodies against <scp>HIV</scp>‐1 <scp>CD4</scp>‐induced epitope shared with those against microorganisms2023

    • Author(s)
      Biswas Shashwata、Kuwata Takeo、Yamauchi Soichiro、Okazaki Kyo、Kaku Yu、Hasan Md Zahid、Morioka Hiroshi、Matsushita Shuzo
    • Journal Title

      Immunology

      Volume: 171 Issue: 4 Pages: 534-548

    • DOI

      10.1111/imm.13742

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Neutralizing Activity against Omicron Subvariants in BA.5 Breakthrough Infection and Three-Dose Vaccination Using a Novel Chemiluminescence-Based, Virus-Mediated Cytopathic Assay2023

    • Author(s)
      Toyoda Mako、Tan Toong Seng、Motozono Chihiro、Barabona Godfrey、Yonekawa Akiko、Shimono Nobuyuki、Minami Rumi、Nagasaki Yoji、Miyashita Yusuke、Oshiumi Hiroyuki、Nakamura Kimitoshi、Matsushita Shuzo、Kuwata Takeo、Ueno Takamasa
    • Journal Title

      Microbiology Spectrum

      Volume: 11 Issue: 4 Pages: 00660-23

    • DOI

      10.1128/spectrum.00660-23

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of a Novel CD4 Mimetic Compound YIR-821 against HIV-1 Clinical Isolates2023

    • Author(s)
      Matsumoto Kaho、Kuwata Takeo、Tolbert William D.、Richard Jonathan、Ding Shilei、Prevost Jeremie、Takahama Shokichi、Judicate George P.、Ueno Takamasa、Nakata Hirotomo、Kobayakawa Takuya、Tsuji Kohei、Tamamura Hirokazu、Smith Amos B.、Pazgier Marzena、Finzi Andres、Matsushita Shuzo
    • Journal Title

      Journal of Virology

      Volume: 97 Issue: 1

    • DOI

      10.1128/jvi.01638-22

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development and characterization of a panel of anti-idiotype antibodies to 1C10 that cross-neutralize HIV-1 subtype B viruses2022

    • Author(s)
      Kaku Yu、Matsumoto Kaho、Kuwata Takeo、Zahid Hasan Md、Biswas Shashwata、Gorny Miroslaw K.、Matsushita Shuzo
    • Journal Title

      Frontiers in Virology

      Volume: 2 Pages: 932187-932187

    • DOI

      10.3389/fviro.2022.932187

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Phenotypic and Genotypic Co-receptor Tropism Testing in HIV-1 Epidemic Region of Tanzania Where Multiple Non-B Subtypes Co-circulate2021

    • Author(s)
      Judicate George P.、Barabona Godfrey、Kamori Doreen、Mahiti Macdonald、Tan Toong Seng、Ozono Seiya、Mgunya Amina Shaban、Kuwata Takeo、Matsushita Shuzo、Sunguya Bruno、Lyamuya Eligius、Tokunaga Kenzo、Ueno Takamasa
    • Journal Title

      Frontiers in Microbiology

      Volume: 12 Pages: 703041-703041

    • DOI

      10.3389/fmicb.2021.703041

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Potent Anti-Simian Immunodeficiency Virus Neutralizing Antibody Induction Associated with a Germ Line Immunoglobulin Gene Polymorphism in Rhesus Macaques2021

    • Author(s)
      Matsuoka Saori、Kuwata Takeo、Ishii Hiroshi、Sekizuka Tsuyoshi、Kuroda Makoto、Sano Masato、Okazaki Midori、Yamamoto Hiroyuki、Shimizu Mikiko、Matsushita Shuzo、Seki Yohei、Saito Akatsuki、Sakawaki Hiromi、Hirsch Vanessa M.、Miura Tomoyuki、Akari Hirofumi、Matano Tetsuro
    • Journal Title

      Journal of Virology

      Volume: 95 Issue: 7

    • DOI

      10.1128/jvi.02455-20

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neutralizing Antibody Induction Associated with a Germline Immunoglobulin Gene Polymorphism in Neutralization-Resistant SIVsmE543-3 Infection2021

    • Author(s)
      Nomura Yuto、Matsuoka Saori、Okazaki Midori、Kuwata Takeo、Matano Tetsuro、Ishii Hiroshi
    • Journal Title

      Viruses

      Volume: 13 Issue: 6 Pages: 1181-1181

    • DOI

      10.3390/v13061181

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [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
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] SARS-CoV-2 Delta株ブレイクスルー感染例から分離した抗体の交差中和活性2023

    • Author(s)
      桑田岳夫、郭悠、清水美紀子、 Biswas Shashwata、松本佳穂、 Khairy Hamdy Edri Ahmed、松下修三
    • Organizer
      日本エイズ学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] SARS-CoV-2 Delta株ブレイクスルー感染例から分離した中和抗体の解析2023

    • Author(s)
      桑田岳夫
    • Organizer
      日本抗ウイルス療法学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] CD4類似化合物YIR-821は多くのHIV-1臨床株に有効である2022

    • Author(s)
      松本佳穂, 桑田岳夫 ,高濱正吉 , George P Judicate, 上野貴将, 小早川拓也, 玉村啓和 , 松下修三
    • Organizer
      日本エイズ学会
    • Related Report
      2022 Research-status Report
  • [Presentation] CD4類似化合物YIR-821によるサブタイプB HIV-1患者抗体の活性増強効果2021

    • Author(s)
      松本佳穂、桑田岳夫、Zahid Md H、郭悠、Biswas S、高濱正吉、玉村啓和、松下修三
    • Organizer
      第35回日本エイズ学会学術集会・総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Anti-Idiotype antibodies as sorting probes to isolate anti-CD4i antibodies2021

    • Author(s)
      Biswas S, Yamauchi S, Morioka H, Kaku Y, Kuwata T, Matsushita S
    • Organizer
      第35回日本エイズ学会学術集会・総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 中和抗体抵抗性SIV感染サルにおいて免疫グロブリン遺伝子多型が中和抗体誘導に及ぼす影響の解析2021

    • Author(s)
      野村柚仁、松岡佐織、岡崎みどり、桑田岳夫、俣野哲郎、石井洋
    • Organizer
      第35回日本エイズ学会学術集会・総会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] コロナウイルス変異株に対するヒト抗体またはその抗 原結合断片2023

    • Inventor(s)
      松下修三;郭 悠;桑田岳夫;河岡義裕;今井正樹;山吉誠也
    • Industrial Property Rights Holder
      松下修三;郭 悠;桑田岳夫;河岡義裕;今井正樹;山吉誠也
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 抗HIV-1 V3抗体1C10(0.5γ)に結合する抗体及びその抗原結合断片並びにその応用2021

    • Inventor(s)
      松下修三、郭悠、桑田岳夫
    • Industrial Property Rights Holder
      松下修三、郭悠、桑田岳夫
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] 抗HIV抗体の製造方法2021

    • Inventor(s)
      松下修三;桑田岳夫;清水 衛;冨田正浩;道下眞弘
    • Industrial Property Rights Holder
      松下修三;桑田岳夫;清水 衛;冨田正浩;道下眞弘
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-553897
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi