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Metagenomic analysis of bacterial flora in the bile of patients with gallbladder cancer or cholelithiasis and verification of bacterial infection history

Research Project

Project/Area Number 17K09103
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Epidemiology and preventive medicine
Research InstitutionNiigata University

Principal Investigator

Tsuchiya Yasuo  新潟大学, 医歯学総合研究科, 客員研究員 (60334679)

Co-Investigator(Kenkyū-buntansha) 浅井 孝夫  新潟医療福祉大学, 医療技術学部, 講師 (60612736)
生駒 俊和  新潟大学, 医歯学総合研究科, 客員研究員 (60612744)
中村 和利  新潟大学, 医歯学系, 教授 (70207869)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords胆嚢がん / インド / 環境要因 / 胆汁 / 細菌 / メタゲノム解析 / 腸チフス菌感染 / 改良ウィダール反応 / 腸チフス感染 / パラチフス感染 / 抗体価 / 感染症 / リスク要因 / 胆嚢胆汁 / 細菌叢
Outline of Final Research Achievements

To elucidate the association between bacterial infection and developing gallbladder cancer (GBC), we examined the bacterial flora in the bile of patients with Indian GBC and chronic cholelithiasis (CC) using metagenomic analysis. Furthermore, serum or plasma antibody titers were measured to clarify the association between Salmonella typhi and paratyphi or Helicobacter pylori infections and developing GBC.
Streptococcus anginosus group bacteria were specifically detected in the bile of GBC patients, suggesting a relationship with the development of this disease. Although a relationship between Salmonella typhi infection and developing GBC was observed, no association between Helicobacter pylori infection and developing this disease could be confirmed.
Additional studis are needed to verify the association between the bacteria with specifically detected in the bile of GBC patients and developing this disease.

Academic Significance and Societal Importance of the Research Achievements

我々は、胆嚢がん発生率が高いインド北部の胆嚢がん患者の胆汁中にはStreptococcus anginosusグループの菌が特異的に検出されることを世界に先駆けて明らかにした。
胆嚢がん患者に特異的に検出された菌が本症発症に関係していることを実証するためにはさらに症例数を増やし、別の地域の胆嚢がん患者でも同様の結果が得られるかどうかを確認する必要がある。
両者の関係が確認でき、口腔内から血行性に菌の感染が広がることが分かれば、口腔ケアなど迅速かつ容易な予防策を策定することは可能である。それらを実践することにより、将来のインドにおける胆嚢がん発症率、死亡率の低下に貢献できると考えられる。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (15 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (4 results) Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] サンジャイ・ガンジー医科学大学院(インド)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] サンジャイガンジー医科学大学院(インド)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] サンジャイ・ガンジー医科学大学院(インド)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] サンジャイ・ガンジー医科学大学院(インド)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Roles of Salmonella typhi and Salmonella paratyphi in Gallbladder Cancer Development2021

    • Author(s)
      R Shukla, P Shukla, A Behari, D Khetan, R K Chaudhary, Y Tsuchiya, T Ikoma, T Asai, K Nakamura, VK Kapoor
    • Journal Title

      Asian Pac J Cancer Prev

      Volume: 22 Issue: 2 Pages: 509-516

    • DOI

      10.31557/apjcp.2021.22.2.509

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Carcinogen Metabolism Pathway and Tumor Suppressor Gene Polymorphisms and Gallbladder Cancer Risk in North Indians: A Hospital-Based Case-Control Study.2019

    • Author(s)
      Takao Asai, Yasuo Tsuchiya, Kumudesh Mishra, Anu Behari, Pooja Shukla, Toshikazu Ikoma, Vinay K Kapoor, Kazutoshi Nakamura.
    • Journal Title

      Asian Pac J Cancer Prev

      Volume: 20 Issue: 12 Pages: 3643-3647

    • DOI

      10.31557/apjcp.2019.20.12.3643

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tumor protein p53 and K-ras gene mutations in Peruvian patients with gallbladder cancer2019

    • Author(s)
      Vidaurre T, Casavilca S, Montenegro P, Gomez H, Calderon M, Navarro J, Aramburu J, Poquioma E, Tsuchiya Y, Asai T, Ajioka Y, Sato A, Ikoma T, Nakamura K
    • Journal Title

      Asian Pac J Cancer Prev

      Volume: 20 Issue: 1 Pages: 289-294

    • DOI

      10.31557/apjcp.2019.20.1.289

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Drinking water survey to elucidate risk factors in a region with high incidence of gallbladder cancer in India2018

    • Author(s)
      生駒俊和, 浅井孝夫, 遠藤和男, 土屋康雄
    • Journal Title

      Japanese Journal of Medical Technology

      Volume: 67 Issue: 5 Pages: 760-765

    • DOI

      10.14932/jamt.18-29

    • NAID

      130007500873

    • ISSN
      0915-8669, 2188-5346
    • Year and Date
      2018-10-25
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plasma Helicobacter pylori antibody titers and Helicobacter pylori infection positivity rates in patients with gallbladder cancer or cholelithiasis: a hospital-based case-control study2018

    • Author(s)
      Tsuchiya Y, Mishra K, Kapoor VK, Vishwakarma R, Behari A, Ikoma T, Asai T, Endoh K, Nakamura K.
    • Journal Title

      Asian Pac J Cancer Prev

      Volume: 19 Pages: 1911-1915

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Metagenomics of Microbial Communities in Gallbladder Bile from Patients with Gallbladder Cancer or Cholelithiasis2018

    • Author(s)
      Yasuo Tsuchiya, Ernest Loza, Guido Villa-Gomez, Carlos C Trujillo, Sergio Baez, Takao Asai, Toshikazu Ikoma, Kazuo Endoh, Kazutoshi Nakamura
    • Journal Title

      Asian Pacific Journal of Cancer Prevention

      Volume: 19 (4) Pages: 961-967

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Lack of association between genetic variants involved in lipid metabolism and gallbladder cancer risk in North Indians2020

    • Author(s)
      Ikoma T, Tsuchiya Y, Mishra K, Behari A, Kapoor VK
    • Organizer
      8th Annual Conference of Molecular Pathology Association of India
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lack of association between genetic variants involved in lipid metabolism and gallbladder cancer risk in North Indians2020

    • Author(s)
      Ikoma T, Tsuchiya Y, Eguchi M, Mishra K, Behari A, Kapoor VK
    • Organizer
      8th Annual Conference of Molecular Pathology Association of India
    • Related Report
      2019 Research-status Report
  • [Presentation] Polymorphism of DNA repair pathway gene and gallbladder cancer risk2018

    • Author(s)
      Tsuchiya Y, Mishra K, Behari A, Ikoma T, Kapoor VK
    • Organizer
      APCON 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Drinking water pollution and gallbladder cancer risk in northern India2018

    • Author(s)
      Ikoma T, Tsuchiya Y, Asai T, Endoh K, Puneet
    • Organizer
      APCON 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Helicobacter pylori and gallbladder cancer in India2018

    • Author(s)
      V. Kapoor, Y. Tsuchiya, K. Mishra, R. Vishwakarma, A. Behari, T. Ikoma, T. Asai, K. Endoh, K. Nakamura
    • Organizer
      13th World Congress of the International Hepato-Pancreato-Biliary Association
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2022-01-27  

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