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Elucidation of the molecular basis for HIV-1 vif/tat mRNA production by analyzing adaptive mutations and relevant sequence database

Research Project

Project/Area Number 21K07042
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49060:Virology-related
Research InstitutionThe University of Tokushima

Principal Investigator

NOMAGUCHI Masako  徳島大学, 大学院医歯薬学研究部(医学域), 教授 (80452647)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsHIV-1 / cis-acting element / スプライシング / 遺伝子発現 / ウイルス複製 / 変異・適応 / 同義置換 / 同義1塩基置換 / 複製能 / Vif / Tat / 複製制御
Outline of Research at the Start

HIV-1ゲノム上にはウイルス複製能や適応能に影響し得る未同定のcis-acting elementやRNA二次構造が存在するのか?申請者は、塩基配列依存性のVif発現量調節領域を同定し、vif/vpr/tat産生量が相互に影響しつつ変動し得ることを見出した。Vpr配列内にはtat産生に必須のスプライシングアクセプター3(SA3)が存在し、その周辺には複数の局所RNA二次構造が認められる。本研究では、SA3周辺の塩基配列に特に着目してHIV-1のvif/tat産生量調節機構を解析し、新規のvif/tat産生調節領域と産生調節におけるRNA構造の関与を明らかにする。

Outline of Final Research Achievements

HIV-1 is a representative virus with high mutation and adaptation abilities. Understanding the HIV-1 adaptation process leads to the establishment of effective strategies to control viral replication. We have identified various synonymous mutations that affect HIV-1 replication ability based on the HIV-1 sequence database analysis. In this study, we newly found that five synonymous single-nucleotide mutations around the splicing acceptor 3 (SA3) site reduce HIV-1 replication ability. Worthy of note, one of the five mutations suppressed multi-cycle HIV-1 replication without affecting infectivity and virion production in single-cycle assay systems. This result suggests that there may be a novel regulatory region on the HIV-1 genome and an unknown restriction machinery in host cells. Elucidation of the molecular basis underlying the inhibition of HIV-1 replication by the single-nucleotide mutation around the SA3 site is underway in our laboratory.

Academic Significance and Societal Importance of the Research Achievements

HIV-1のようなRNAウイルスは、複製に必須の複数のcis-acting elementをゲノム上に有している。本研究で実施した塩基配列ベースでの変異・適応の解析は、HIV-1の高い変異・適応能の制御戦略構築や新たなcis-acting elementの同定に繋がり得る。上述のSA3周辺で見出したマルチサイクルの複製能を低下させる1塩基置換の同定は、HIV-1ゲノム上の新規の複製調節領域、および、宿主細胞内での未知のHIV-1複製制御機構の存在を示唆している。本研究の推進により、HIV-1複製とその制御に関して新たな知見を提供することを目指す。

Report

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

    (31 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (24 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] “Century of Light” Pioneered by Invisible Light2023

    • Author(s)
      YASUI Takeshi、MINAMIKAWA Takeo、TOKIZANE Yu、KUSE Naoya、KOMA Takaaki、UEDA Takao、NOMAGUCHI Masako
    • Journal Title

      Journal of the Japan Society for Precision Engineering

      Volume: 89 Issue: 8 Pages: 587-591

    • DOI

      10.2493/jjspe.89.587

    • ISSN
      0912-0289, 1882-675X
    • Year and Date
      2023-08-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Humanized mice generated by intra-bone marrow injection of CD133-positive hematopoietic stem cells: application to HIV-1 research2023

    • Author(s)
      Koma Takaaki、Odaka Tokifumi、Lee Sung-Il、Doi Naoya、Kondo Tomoyuki、Okuma Kazu、Fujisawa Jun-Ichi、Adachi Akio、Nomaguchi Masako
    • Journal Title

      Frontiers in Virology

      Volume: 3 Pages: 1192184-1192184

    • DOI

      10.3389/fviro.2023.1192184

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] HIV-1 replication and pathogenicity: lessons from macaque-tropic HIV-1 derivatives2023

    • Author(s)
      Koma Takaaki、Doi Naoya、Quoc Le Bao、Kondo Tomoyuki、Adachi Akio、Nomaguchi Masako
    • Journal Title

      IntechOpen

      Volume: ー

    • DOI

      10.5772/intechopen.1002899

    • ISBN
      9780854664672, 9780854664665
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Involvement of a Rarely Used Splicing SD2b Site in the Regulation of HIV-1 vif mRNA Production as Revealed by a Growth-Adaptive Mutation2023

    • Author(s)
      Koma Takaaki、Doi Naoya、Le Bao Quoc、Kondo Tomoyuki、Ishizue Mitsuki、Tokaji Chiaki、Tsukada Chizuko、Adachi Akio、Nomaguchi Masako
    • Journal Title

      Viruses

      Volume: 15 Issue: 12 Pages: 2424-2424

    • DOI

      10.3390/v15122424

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Major target for UV-induced complete loss of HIV-1 infectivity: A model study of single-stranded RNA enveloped viruses2022

    • Author(s)
      Koma Takaaki、Doi Naoya、Suzuki Akihiro、Nagamatsu Kentaro、Yasui Takeshi、Yasutomo Koji、Adachi Akio、Minamikawa Takeo、Nomaguchi Masako
    • Journal Title

      Frontiers in Virology

      Volume: 2

    • DOI

      10.3389/fviro.2022.994842

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Species-Specific Valid Ternary Interactions of HIV-1 Env-gp120, CD4, and CCR5 as Revealed by an Adaptive Single-Amino Acid Substitution at the V3 Loop Tip2021

    • Author(s)
      Koma Takaaki、Yokoyama Masaru、Kotani Osamu、Doi Naoya、Nakanishi Nina、Okubo Hayato、Adachi Shun、Adachi Akio、Sato Hironori、Nomaguchi Masako
    • Journal Title

      Journal of Virology

      Volume: 95 Issue: 13

    • DOI

      10.1128/jvi.02177-20

    • NAID

      120007178460

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Expression Level of HIV-1 Vif Is Optimized by Nucleotide Changes in the Genomic SA1D2prox Region during the Viral Adaptation Process2021

    • Author(s)
      Koma Takaaki、Doi Naoya、Takemoto Mai、Watanabe Kyosuke、Yamamoto Hideki、Nakashima Satoshi、Adachi Akio、Nomaguchi Masako
    • Journal Title

      Viruses

      Volume: 13 Issue: 10 Pages: 2079-2079

    • DOI

      10.3390/v13102079

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 3-Deazaguanosine exhibits anti-SARS-CoV-2 activity and blocks the development of COVID-19 pneumonis in hamsters.2024

    • Author(s)
      Noriaki Minakawa, Noriko Saito-Tarashima, Takaaki Koma, Naoto Hinotani, Keigo Yoshida, Moka Ogasa, Akiho Murai, Shuya Inoue, Tomoyuki Kondo, Naoya Doi, Masako Nomaguchi
    • Organizer
      Supra FIBER International Summit for Nucleic Acids (S-FISNA) 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 抗SARS-CoV-2活性を指標とした4'-チオ修飾siRNAの最適化2024

    • Author(s)
      野木悠平、田良島典子、駒貴明、月本準、野間口雅子、南川典昭
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] SARS-CoV-2活性を発揮する3-デアザグアノシンの発見と作用メカニズム解明2024

    • Author(s)
      吉田圭吾、日野谷直人、小笠萌香、田良島典子、駒貴明、野間口雅子、南川典昭
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Computational analysis of the acquisition and evolution of the vpu gene in Human Immunodeficiency Virus-12023

    • Author(s)
      Naruki Miu, Saito Motofumi, Tomita Masaru, Nomaguchi Masako, Kanai Akio
    • Organizer
      The 28th Annual Meeting of the RNA Society, Singapore
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of the 4'-thiomodified siRNAs against SARS-CoV-22023

    • Author(s)
      Yuhei Nogi, Noriko Saito-Tarashima, Takaaki Koma, Masako Nomaguchi, Noriaki Minakawa
    • Organizer
      14th AFMC International Medicinal Chemistry Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The elucidation of the acquisition and evolution of HIV-1 vpu2023

    • Author(s)
      Naruki Miu, Saito Motofumi, Nomaguchi Masako, Kanai Akio
    • Organizer
      第24回日本RNA学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] SARS-CoV-2を標的とした4'-チオ修飾siRNAの創製2023

    • Author(s)
      野木悠平、田良島典子、駒貴明、野間口雅子、南川典昭
    • Organizer
      日本核酸医薬学会第8回年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] PIMキナーゼによるウイルス産生抑制の解析2023

    • Author(s)
      土肥直哉、駒貴明、Le Quoc Bao、薦田奈々子、一ノ宮匠海、近藤智之、足立昭夫、野間口雅子
    • Organizer
      第70回日本ウイルス学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Vpr領域内の同義1塩基置換がHIV-1複製に及ぼす影響2023

    • Author(s)
      近藤智之、駒貴明、土肥直哉、Le Quoc Bao、薦田奈々子、一ノ宮匠海、足立昭夫、野間口雅子
    • Organizer
      第70回日本ウイルス学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] HIV-1集合におけるGag-NCとgRNAの相互作用の意義2023

    • Author(s)
      駒貴明、Le Quoc Bao、土肥直哉、薦田奈々子、一ノ宮匠海、近藤智之、足立昭夫、野間口雅子
    • Organizer
      第70回日本ウイルス学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] R5指向性HIV-1複製におけるV3内ITI tripletモティーフの重要性2023

    • Author(s)
      Le Quoc Bao、横山勝、土肥直哉、一ノ宮匠海、薦田奈々子、近藤智之、足立昭夫、小谷治、佐藤裕徳、野間口雅子、駒貴明
    • Organizer
      第70回日本ウイルス学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 抗SARS-CoV-2の活性獲得を目指した3-デアザプリンヌクレオシド類の合成2023

    • Author(s)
      小笠萌香、日野谷直人、田良島典子、駒貴明、野間口雅子、南川典昭
    • Organizer
      第62回日本薬学会・日本薬剤師会・日本病院薬剤師会 中国四国支部学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 4'-チオ核酸修飾siRNAの開発 (2)2023

    • Author(s)
      尾崎里奈、野木悠平、田良島典子、駒貴明、月本準、野間口雅子、南川典昭
    • Organizer
      第62回日本薬学会・日本薬剤師会・日本病院薬剤師会 中国四国支部学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 4'-チオ核酸修飾siRNAの開発 (1)2023

    • Author(s)
      野木悠平、田良島典子、駒貴明、野間口雅子、南川典昭
    • Organizer
      第62回日本薬学会・日本薬剤師会・日本病院薬剤師会 中国四国支部学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 未知のHIV-1 Gag二量体化制御単位の同定と構造生物学的性質決定2022

    • Author(s)
      小谷治、駒貴明、神庭圭佑、森田泰基、横山勝、土肥直哉、近藤智之、永田崇、足立昭夫、片平正人、野間口雅子、佐藤裕徳
    • Organizer
      日本ウイルス学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] HIV-1遺伝子発現におけるvpr塩基配列の重要性2022

    • Author(s)
      土肥直哉、駒貴明、後藤田知里、長坂麻里、近藤智之、足立昭夫、野間口雅子
    • Organizer
      日本ウイルス学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] PIMによるHIV種特異的な遺伝子発現制御機構の解析2022

    • Author(s)
      近藤智之、駒貴明、宇田川明郁、奥村希、足立昭夫、野間口雅子、土肥直哉
    • Organizer
      日本ウイルス学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] HIV-1 Gag-MAにおけるGag前駆体二量体化部位のウイルス学的解析2022

    • Author(s)
      駒貴明、小谷治、土肥直哉、近藤智之、横山勝、足立昭夫、佐藤裕徳、野間口雅子
    • Organizer
      日本ウイルス学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] HIV-1 Gag MAのGag二量体化における役割の解明2022

    • Author(s)
      駒貴明、小谷治、土肥直哉、近藤智之、横山勝、足立昭夫、佐藤裕徳、野間口雅子
    • Organizer
      日本エイズ学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] PIMキナーゼによるHIV型特異的な遺伝子発現調節の解析2022

    • Author(s)
      近藤智之、駒貴明、足立昭夫、野間口雅子、土肥直哉
    • Organizer
      日本エイズ学会学術集会
    • Related Report
      2022 Research-status Report
  • [Presentation] The acquisition and molecular evolution of the vpu gene in HIV-12022

    • Author(s)
      Miu Naruki, Motofumi Saito, Masaru Tomita, Masako Nomaguchi, Akio Kanai
    • Organizer
      日本RNA学会
    • Related Report
      2022 Research-status Report
  • [Presentation] PIMキナーゼ阻害剤がHIV種特異的に複製に及ぼす影響の解析2021

    • Author(s)
      駒貴明, 礎光希, 塚田知寿子, 戸梶智耀, 足立昭夫, 野間口雅子, 土肥直哉
    • Organizer
      第35回日本エイズ学会学術集会・総会
    • Related Report
      2021 Research-status Report
  • [Presentation] HIV-1 vpr塩基配列の同義一塩基置換がウイルス複製に与える影響2021

    • Author(s)
      駒貴明, 土肥直哉, 塚田知寿子, 戸梶智耀、礎光希, 足立昭夫, 野間口雅子
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 深紫外LEDを用いた新型コロナウイルスの不活化2021

    • Author(s)
      南川丈夫, 駒貴明, 鈴木昭浩, 永松謙太郎, 安井武史, 安友康二, 野間口雅子
    • Organizer
      電気学会 光・量子デバイス研究会「パワー光源システム技術研究会」
    • Related Report
      2021 Research-status Report

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

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