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Dissemination mechanisms of colistin-resistant bacteria in communities of developping countries

Research Project

Project/Area Number 20H00561
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 58:Society medicine, nursing, and related fields
Research InstitutionGifu University

Principal Investigator

Yamamoto Yoshimasa  岐阜大学, 大学院連合創薬医療情報研究科, 招へい教員 (20010100)

Co-Investigator(Kenkyū-buntansha) 河原 隆二  地方独立行政法人 大阪健康安全基盤研究所, 微生物部, 主幹研究員 (10332454)
田中 香お里  岐阜大学, 糖鎖生命コア研究所, 教授 (20242729)
林 将大  岐阜大学, 糖鎖生命コア研究所, 助教 (20646385)
山本 眞由美  岐阜大学, 保健管理センター, 教授 (40313879)
山口 貴弘  地方独立行政法人 大阪健康安全基盤研究所, 微生物部, 主任研究員 (80553635)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥43,550,000 (Direct Cost: ¥33,500,000、Indirect Cost: ¥10,050,000)
Fiscal Year 2022: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2021: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2020: ¥15,470,000 (Direct Cost: ¥11,900,000、Indirect Cost: ¥3,570,000)
Keywords薬剤耐性 / 途上国 / コミュニティ / コリスチン耐性 / ゲノム解析 / コリスチン耐性菌 / コミュニテイ / 住民 / 機序 / 遺伝子 / 食品 / コリスチン / ベトナム
Outline of Research at the Start

コリスチンは多剤耐性菌治療の切札とされている。この抗菌剤に対する耐性菌が途上国コミュニテイで蔓延し、その世界的拡散が大きな脅威となっている。本研究では、耐性菌蔓延とその慢性化に寄与する耐性遺伝子リザーバーであるヒトならびに家畜腸内細菌叢に焦点をあて、コリスチン耐性遺伝子の細菌種間分布ならびにその構造解析を行い、蔓延の慢性化機構解明を行う。また、コミュニテイにおける薬剤耐性対策に必須である耐性菌簡易迅速測定法の開発を行い、今後予測される脅威への効果的対応に資する科学的基盤成績取得と耐性菌モニタリング技術の提供を目指す。

Outline of Final Research Achievements

In this study, we elucidated the mechanism of colistin-resistant bacteria dissemination within communities by analyzing the genome of colistin resistance E. coli isolates between livestock and residents. Additionally, we developed a multiplex real-time PCR method as a rapid screening tool for colistin-resistant bacteria. To understand the impact of geographic and social environmental factors on the spread of resistant bacteria, we conducted genomic analyses of colistin-resistant Escherichia coli isolated from residents in Vietnam and Ecuador. The results revealed that the types of mcr-carrying plasmids and the distribution of resistance genes varied between countries. These findings provide crucial information for developing strategies to prevent the spread of colistin-resistant bacteria.

Academic Significance and Societal Importance of the Research Achievements

本研究成果である、地域コミュニテイにおけるコリスチン耐性菌蔓延慢性化機序の解明で明らかとなった家畜からヒトへの耐性遺伝子の伝播の実証、地理的社会的環境要因がコリスチン耐性菌ゲノム構造の多様性を生むことの発見、食品汚染コリスチン耐性菌の簡易迅速測定法の開発は、いずれも耐性菌蔓延慢性化防止策構築において重要な基盤的知見となるものである。特に、耐性菌の簡易迅速測定法は実用性が高いため、途上国の食品管理を含む公衆衛生領域で広く活用されることが望まれる。

Report

(5 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (13 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (9 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 9 results)

  • [Int'l Joint Research] タイビン医科薬科大学(ベトナム)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] アメリカ大学(エクアドル)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] タイビン医科薬科大学(ベトナム)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] タイビン医科薬科大学(ベトナム)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Abundance of Colistin-Resistance Genes in Retail Meats in Vietnam2024

    • Author(s)
      Le Yen Hai、Ikawa Kanoko、Hoang Hoa Thi Thanh、Isomura Hatsue、Khong Diep Thi、Nguyen Thang Nam、Que Tram Anh、Pham Dung Tien、Tanaka Kaori、Yamamoto Yoshimasa
    • Journal Title

      Foodborne Pathogens and Disease

      Volume: 21 Issue: 8 Pages: 485-490

    • DOI

      10.1089/fpd.2023.0162

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative genome analysis of colistin-resistant Escherichia coli harboring mcr isolated from rural community residents in Ecuador and Vietnam2023

    • Author(s)
      Thanh Hoang Hoa Thi、Yamamoto Mayumi、Calvopina Manuel、Bastidas-Caldes Carlos、Khong Diep Thi、Nguyen Thang Nam、Kawahara Ryuji、Yamaguchi Takahiro、Yamamoto Yoshimasa
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 11 Pages: e0293940-e0293940

    • DOI

      10.1371/journal.pone.0293940

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fusion plasmid carrying the colistin resistance gene mcr of Escherichia coli isolated from healthy residents2022

    • Author(s)
      Hoang Hoa Thi Thanh、Higashi Ayano、Yamaguchi Takahiro、Kawahara Ryuji、Calvopina Manuel、Bastidas-Cald?s Andres、Yamamoto Mayumi、Yamamoto Yoshimasa
    • Journal Title

      Journal of Global Antimicrobial Resistance

      Volume: 30 Pages: 152-154

    • DOI

      10.1016/j.jgar.2022.06.007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Horizontal transfer of a plasmid possessing mcr-1 marked with a single nucleotide mutation between Escherichia coli isolates from community residents2022

    • Author(s)
      Yamamoto Yoshimasa、Higashi Ayano、Ikawa Kanoko、Hoang Hoa Thi Thanh、Yamaguchi Takahiro、Kawahara Ryuji、Noguchi Hideki、Nguyen Thang Nam、Khong Diep Thi、Tran Hoa Thi
    • Journal Title

      BMC Research Notes

      Volume: 15 Issue: 1 Pages: 196-196

    • DOI

      10.1186/s13104-022-06079-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Complete Genome Sequences of Three Phocaeicola vulgatus Strains Isolated from a Healthy Japanese Individual2022

    • Author(s)
      Vu Hanh、Muto Yoshinori、Hayashi Masahiro、Noguchi Hideki、Tanaka Kaori、Yamamoto Yoshimasa
    • Journal Title

      Microbiology Resource Announcements

      Volume: 11 Issue: 2

    • DOI

      10.1128/mra.01124-21

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quantitative Analysis of Colistin-Resistant Escherichia coli in Retail Meat from Local Vietnamese Markets2021

    • Author(s)
      Nguyen Thang N.、Khong Diep T.、Le Ha V.、Tran Hoa T.、Phan Quang N.、Le Huong T. T.、Kawahara Ryuji、Yamamoto Yoshimasa
    • Journal Title

      BioMed Research International

      Volume: 2021 Issue: 1 Pages: 1-6

    • DOI

      10.1155/2021/6678901

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "Rapid and Practical Screening Method for the Detection of Colistin-Resistant Bacteria in Food"2021

    • Author(s)
      Yamamoto Yoshimasa
    • Journal Title

      Biomedical Journal of Scientific & Technical Research

      Volume: 40 Issue: 1 Pages: 31798-31802

    • DOI

      10.26717/bjstr.2021.40.006381

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of Phenotypic and Genotypic Patterns of Antimicrobial-Resistant Bacteroides fragilis Group Isolated from Healthy Individuals in Vietnam and Japan2021

    • Author(s)
      Vu Hanh、Hayashi Masahiro、Nguyen Thang Nam、Khong Diep Thi、Tran Hoa Thi、Yamamoto Yoshimasa、Tanaka Kaori
    • Journal Title

      Infection and Drug Resistance

      Volume: Volume 14 Pages: 5313-5323

    • DOI

      10.2147/idr.s341571

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative Genome Analysis of Livestock and Human Colistin-Resistant Escherichia coli Isolates from the Same Household2021

    • Author(s)
      Ryuji Kawahara, Takahiro Yamaguchi Yoshimasa Yamamoto
    • Journal Title

      Infect Drug Resist

      Volume: 14 Pages: 841-847

    • DOI

      10.2147/idr.s298120

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access

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Published: 2020-04-28   Modified: 2025-01-30  

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