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Function analysis of the viral factors which regulate the pathogenicity of classical swine fever virus

Research Project

Project/Area Number 19H03115
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionHokkaido University

Principal Investigator

SAKODA Yoshihiro  北海道大学, 獣医学研究院, 教授 (40333637)

Co-Investigator(Kenkyū-buntansha) 青木 博史  日本獣医生命科学大学, 獣医学部, 准教授 (10440067)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywords豚コレラウイルス / 豚熱ウイルス / 病原性 / ウイルス因子 / 準種 / 機能解明
Outline of Research at the Start

豚コレラウイルスの豚に対する病原性は株によって多様である。豚コレラウイルスの病原性因子として、ウイルス蛋白Npro、Erns、E2、NS4B蛋白などが同定されている。しかし、近年流行している豚コレラウイルスの病原性の多様性は、現行の方法論で得られた成績だけでは説明できない。すなわち、豚コレラウイルスの病原性に関与する新規ウイルス因子の同定と、既報のウイルス因子との相乗効果を評価する必要がある。さらに、準種(Major集団とMinor集団)に由来するウイルス蛋白の活性バランスが病原性発揮に寄与することを証明し、豚コレラウイルスの多様な病原性を規定するウイルス因子の機能を解明する。

Outline of Final Research Achievements

The manifestation of the diverse pathogenicity of classical swine fever virus (CSFV) were elucidated from the molecular level of viral proteins to the in vivo level by experimental infection of pigs with mutant viruses. As a result, it was clarified that the novel viral factors involved in pathogenicity of CSFV in pigs. In addition, we found that multiple viral factors identified in this study synergistically contributed to the pathogenicity of CSFV. Furthermore, it was revealed that viruses in the infected pigs are not a single virus population but a quasispecies (mixture), and that the balance of activities of viral factors derived from the major and minor virus populations determines virulence.

Academic Significance and Societal Importance of the Research Achievements

豚コレラ(豚熱)の原因である豚コレラ(豚熱)ウイルスはブタに対して100%の致死率を示す高い病原性のウイルスからブタを殺すことのない低い病原性を示すウイルスまで多様である。そこで、現在国内でも流行している中程度の病原性を示す本ウイルスの病原性を理解するため、病原性に関与する新しいウイルス因子の特定、複数のウイルス因子の病原性発揮のための相乗効果、またウイルス集団が不均一であることの重要性を明らかにした。これらの成果は宿主・病原体間の相互作用がもたらす豚コレラ(豚熱)ウイルスの病原性発揮メカニズムの理解だけでなく、本病の新しいワクチン開発の基盤となる重要な学術知見である。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (30 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (4 results) Journal Article (13 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 13 results,  Open Access: 11 results) Presentation (13 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results)

  • [Int'l Joint Research] 国際連合食糧農業機関(FAO)(ベトナム)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Institute of Virology and Immunology(スイス)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Lubeck(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University Complutense of Madrid(スペイン)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Antiviral Effects of 5-Aminolevulinic Acid Phosphate against Classical Swine Fever Virus: In Vitro and In Vivo Evaluation2022

    • Author(s)
      Hirose Shizuka、Isoda Norikazu、Huynh Loc Tan、Kim Taksoo、Yoshimoto Keiichiro、Tanaka Tohru、Inui Kenjiro、Hiono Takahiro、Sakoda Yoshihiro
    • Journal Title

      Pathogens

      Volume: 11 Issue: 2 Pages: 164-164

    • DOI

      10.3390/pathogens11020164

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Endemic infections of bovine viral diarrhea virus genotypes 1b and 2a isolated from cattle in Japan between 2014 and 20202022

    • Author(s)
      NISHIMORI Asami、HIROSE Shizuka、OGINO Saho、ANDOH Kiyohiko、ISODA Norikazu、SAKODA Yoshihiro
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 84 Issue: 2 Pages: 228-232

    • DOI

      10.1292/jvms.21-0480

    • NAID

      130008158967

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of Classical Swine Fever Virus Variants Derived from Live Attenuated GPE- Vaccine Seed2021

    • Author(s)
      Kim Taksoo、Huynh Loc Tan、Hirose Shizuka、Igarashi Manabu、Hiono Takahiro、Isoda Norikazu、Sakoda Yoshihiro
    • Journal Title

      Viruses

      Volume: 13 Issue: 8 Pages: 1672-1672

    • DOI

      10.3390/v13081672

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bovine endometrium-derived cultured cells are suitable for lipofection2021

    • Author(s)
      Shiokawa Mai、Miura Ryotaro、Okubo Aki、Hagita Yujiro、Yoshimura Itaru、Aoki Hiroshi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 16207-16207

    • DOI

      10.1038/s41598-021-95848-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficacy of Oral Vaccine against Classical Swine Fever in Wild Boar and Estimation of the Disease Dynamics in the Quantitative Approach2021

    • Author(s)
      Bazarragchaa Enkhbold、Isoda Norikazu、Kim Taksoo、Tetsuo Madoka、Ito Satoshi、Matsuno Keita、Sakoda Yoshihiro
    • Journal Title

      Viruses

      Volume: 13 Issue: 2 Pages: 319-319

    • DOI

      10.3390/v13020319

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detection and genetic analysis of a novel atypical porcine pestivirus from piglets with congenital tremor in Japan2021

    • Author(s)
      Kasahara‐Kamiie Miwako、Kagawa Mitsuo、Shiokawa Mai、Sunaga Fujiko、Fukase Yuka、Aihara Naoyuki、Shiga Takanori、Kamiie Junichi、Aoki Hiroshi、Nagai Makoto
    • Journal Title

      Transboundary and Emerging Diseases

      Volume: 印刷中 Issue: 4 Pages: 1-9

    • DOI

      10.1111/tbed.14149

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of Classical Swine Fever Spread in Wild Boar in 2018?2019, Japan2020

    • Author(s)
      Isoda Norikazu、Baba Kairi、Ito Satoshi、Ito Mitsugi、Sakoda Yoshihiro、Makita Kohei
    • Journal Title

      Pathogens

      Volume: 9 Issue: 2 Pages: 119-119

    • DOI

      10.3390/pathogens9020119

    • NAID

      120007193493

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Classical swine fever virus: the past, present and future2020

    • Author(s)
      Ganges Llilianne、Crooke Helen R.、Bohorquez Jose Alejandro、Postel Alexander、Sakoda Yoshihiro、Becher Paul、Ruggli Nicolas
    • Journal Title

      Virus Research

      Volume: 289 Pages: 198151-198151

    • DOI

      10.1016/j.virusres.2020.198151

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of a one-run real-time PCR detection system for pathogens associated with porcine respiratory diseases2020

    • Author(s)
      SUNAGA Fujiko、TSUCHIAKA Shinobu、KISHIMOTO Mai、AOKI Hiroshi、KAKINOKI Mari、KURE Katsumasa、OKUMURA Hanako、OKUMURA Maho、OKUMURA Atsushi、NAGAI Makoto、OMATSU Tsutomu、MIZUTANI Tetsuya
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 82 Issue: 2 Pages: 217-223

    • DOI

      10.1292/jvms.19-0063

    • NAID

      130007799384

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A cloned classical swine fever virus derived from the vaccine strain GPE- causes cytopathic effect in CPK-NS cells via type-I interferon-dependent necroptosis.2020

    • Author(s)
      Itakura Y, Matsuno K, Ito A, Gerber M, Liniger M, Fujimoto Y, Tamura T, Kameyama KI, Okamatsu M, Ruggli N, Kida H, Sakoda Y
    • Journal Title

      Virus Res

      Volume: 15;276 Pages: 197809-197809

    • DOI

      10.1016/j.virusres.2019.197809

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Development of a High-Throughput Serum Neutralization Test Using Recombinant Pestiviruses Possessing a Small Reporter Tag.2020

    • Author(s)
      Tetsuo M, Matsuno K, Tamura T, Fukuhara T, Kim T, Okamatsu M, Tautz N, Matsuura Y, Sakoda Y.
    • Journal Title

      Pathogens

      Volume: 9 Issue: 3 Pages: 188-188

    • DOI

      10.3390/pathogens9030188

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Role of Wild Boar in the Spread of Classical Swine Fever in Japan2019

    • Author(s)
      Ito Satoshi、Jurado Cristina、Bosch Jaime、Ito Mitsugi、Sanchez-Vizcaino Jose Manuel、Isoda Norikazu、Sakoda Yoshihiro
    • Journal Title

      Pathogens

      Volume: 8 Issue: 4 Pages: 206-206

    • DOI

      10.3390/pathogens8040206

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] END-phenomenon negative bovine viral diarrhea virus that induces the host's innate immune response supports propagation of BVDVs with different immunological properties2019

    • Author(s)
      Shiokawa Mai、Omatsu Tsutomu、Katayama Yukie、Nishine Kaoru、Fujimoto Yuri、Uchiyama Shiori、Kameyama Ken-ichiro、Nagai Makoto、Mizutani Tetsuya、Sakoda Yoshihiro、Fukusho Akio、Aoki Hiroshi
    • Journal Title

      Virology

      Volume: 538 Pages: 97-110

    • DOI

      10.1016/j.virol.2019.09.016

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] ワクチンシードと同じアミノ酸配列を持つ豚熱ウイルスGPE-株作出の試み2021

    • Author(s)
      金琢洙, LOC Huynh Tan, 廣瀬静香, 日尾野隆大, 磯田典和, 迫田義博
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アミノレブリン酸リン酸塩による豚熱ウイルス増殖抑制効果の検証2021

    • Author(s)
      廣瀬静香、Huynh Tan Loc、金琢洙、磯田典和、日尾野隆大、吉本圭一郎、田中徹、乾健二郎、迫田義博
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Generation of recombinant highly virulent classical swine fever virus strain possessing a luminescent HiBiT tag as a reporter2021

    • Author(s)
      Huynh Tan Loc, 廣瀬 静香, 金 琢洙, 田村友和, 福原崇介, 松浦善治, 日尾野 隆大, 磯田 典和, 迫田 義博
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Program and evaluation of vaccination for wild and domestic boars against classical swine fever in Japan2021

    • Author(s)
      Yoshihiro Sakoda
    • Organizer
      2021 International Symposium for Classical Swine Fever China Institute of Veterinary Drug Control
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アミノレブリン酸リン酸塩による豚熱ウイルス増殖抑制効果の検証2021

    • Author(s)
      廣瀬静香、Huynh Tan Loc、金琢洙、磯田典和、日尾野隆大、吉本圭一郎、田中徹、乾健二郎、迫田義博
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Generation of recombinant classical swine fever virus possessing a luminescent HiBiT tag as a reporter using a highly virulent strain2021

    • Author(s)
      Huynh Tan Loc, 廣瀬 静香, 金 琢洙, 田村友和, 福原崇介, 松浦善治, 日尾野 隆大, 磯田 典和, 迫田 義博
    • Organizer
      第68回日本ウイルス学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 豚熱のワクチン2021

    • Author(s)
      迫田義博
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] リポフェクション効率の高い牛由来培養細胞の作出とウイルス感染症研究への応用2021

    • Author(s)
      塩川舞、三浦亮太郎、大久保阿輝、萩田裕二郎、青木博史
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 非定型豚ペスチウイルスの分離と作出方法2021

    • Author(s)
      塩川舞、森田結衣、長井誠、青木博史
    • Organizer
      第27回トガ・フラビ・ペスチウイルス研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 豚熱(CSF)の現状と今後の展望-食生活への影響はあるのか2021

    • Author(s)
      迫田 義博
    • Organizer
      日本獣医学会 市民公開講座
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Quantitative analysis of antigen and antibody of classical swine fever virus in wild boar sera collected in Gifu prefecture, Japan2020

    • Author(s)
      Bazarragchaa Enkhbold、金 琢洙、哲翁 まどか、磯田 典和、松野 啓太、迫田 義博
    • Organizer
      第163回 日本獣医学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ウイルス系統学的解析およひ疫学的ネットワーク解析を用いた北海道十勝地方における牛ウイルス性下痢ウイルスの伝播経路解明2020

    • Author(s)
      廣瀬 静香、野津 昂亮、松野 啓太、岡松 正敏、川本 恵子、磯田 典和、迫田 義博
    • Organizer
      第163回 日本獣医学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 発光タグHiBiTをレポーターとして用いた遺伝子組換えウイルスによる簡便なペスチウイルス抗体測定法の確立2019

    • Author(s)
      哲翁まどか, 松野啓太, 田村友和, 福原崇介, 松浦善治, 岡松正敏, 迫田義博
    • Organizer
      第162回日本獣医学会学術集会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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