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

Gastric cancer and duodenal ulcer - two different mechanisms of gastric disease onset based on Helicobacter pylori infection

Research Project

Project/Area Number 21K07898
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionOita University

Principal Investigator

Akada Junko  大分大学, 医学部, 助教 (30346548)

Co-Investigator(Kenkyū-buntansha) 山岡 吉生  大分大学, 医学部, 教授 (00544248)
松本 昂  大分大学, 医学部, 助教 (50609667)
塚本 善之  大分大学, 医学部, 助教 (00433053)
村上 和成  大分大学, 医学部, 教授 (00239485)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsヘリコバクター・ピロリ / 胃癌 / 十二指腸潰瘍 / GWAS解析 / 遊走能 / 胃オルガノイド / IgA
Outline of Research at the Start

東アジアの胃癌死亡率は世界平均の2倍近くと、胃癌死の低減へは道半ばである。胃癌の主要な誘導因子はHelicobacter pylori(ピロリ菌)である。我々は東アジアピロリ菌株を用い、対照的な胃疾患である胃癌と十二指腸潰瘍にそれぞれ由来する菌株を、ゲノムワイド遺伝子関連解析にて比較し、胃癌株に優位に関連する1遺伝子変異(SNP)を持つ11遺伝子を選択した。本研究では、ピロリ菌感染の場であるヒト胃粘膜組織、および胃オルガノイド感染実験系を用いて、十二指腸潰瘍および胃癌発症に関与するピロリ菌病原体因子と、関連する宿主因子を明らかにする。

Outline of Final Research Achievements

Helicobacter pylori strains derived from gastric cancer (GC) and duodenal ulcer (DU), were compared using genome-wide gene association analysis, and 11 genes with single nucleotide polymorphisms (SNPs) were identified. Based on the previous report, this study focused on one of them, the dsbG gene and conducted an experimental evaluation. Since DsbG is involved in the motility of bacteria, we created a gene-knockout strain of standard strain 26695, GC-type-SNP or DU-type-SNP complemented strains, and evaluated the motility of each strain. The dsbG-knockout strain lacks motility, however, the gene-complemented strain recovers it. Moreover, the GC-type-SNP introduced strain is equivalent to the DU-type- SNP introduced strain under neutral conditions, but shows higher motility under acidic conditions. We proceeded with the establishment of a gastric organoid infection experimental system. We are also processing with the anti-H. pylori IgA analysis using GC- and DU-patient serum samples.

Academic Significance and Societal Importance of the Research Achievements

胃癌の主要な誘導因子はピロリ菌であるが、ピロリ菌感染により誘導される胃疾患は、胃炎、胃潰瘍、十二指腸潰瘍、マルトリンパ腫、腸上皮化生、胃癌と多様である。内視鏡的観察や病理組織診断により、萎縮性胃炎から腸上皮化生を経て胃癌に至ると推定されており、また十二指腸潰瘍患者が後に胃癌が発生することはまれであることも指摘されてきた。我々はこの対照的な二つの胃疾患に関連するピロリ菌因子をゲノム解析から見出してきた。本研究では、胃癌発症に関与するこれら細菌因子を実験的に評価し、作用機序に関与する宿主因子や環境因子を見出し、そこから新しい胃癌予防や治療戦略につなげる道を開いてゆく。

Report

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

    (26 results)

All 2023 2022 2021 Other

All Int'l Joint Research (9 results) Journal Article (10 results) (of which Int'l Joint Research: 9 results,  Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (7 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] Cho Ray Hospital/108 Military Central Hospital(ベトナム)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Mongolian National Univ. of Med. Sci.(モンゴル)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Universitias Airlangga(インドネシア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Universty of Mbujimai(コンゴ民主共和国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Cho Ray Hospital(ベトナム)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Mongolian National Univ. of Med. Sci.(モンゴル)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Universitas Airlangga(インドネシア)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] University of Mbujima(コンゴ民主共和国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Cho Ray Hospital/108 Military Central Hospital(ベトナム)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Comparative genomics of two Vietnamese Helicobacter pylori strains, CHC155 from a non-cardia gastric cancer patient and VN1291 from a duodenal ulcer patient.2023

    • Author(s)
      Phuc BH, Tuan VP, Binh TT, Tung PH, Tri TD, Dung HDQ, Thuan NPM, Fauzia KA, Tshibangu-Kabamba E, Alfaray RI, Saruuljavkhlan B, Matsumoto T, Akada J, Yamaoka Y.
    • Journal Title

      Sci Rep

      Volume: 13 Issue: 1 Pages: 8869-8869

    • DOI

      10.1038/s41598-023-35527-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study of Helicobacter pylori Isolated from a High-Gastric-Cancer-Risk Population: Unveiling the Comprehensive Analysis of Virulence-Associated Genes including Secretion Systems, and Genome-Wide Association Study2023

    • Author(s)
      Saruuljavkhlan B, Alfaray RI, Oyuntsetseg K, Gantuya B, Khangai A, Renchinsengee N, Matsumoto T, Akada J, Azzaya D, Davaadorj D, Yamaoka Y.
    • Journal Title

      Cancers (Basel)

      Volume: 15 Issue: 18 Pages: 4528-4528

    • DOI

      10.3390/cancers15184528

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Helicobacter pyloriの環境に適応する病原因子とはなんですか?2023

    • Author(s)
      赤田 純子
    • Journal Title

      Helicobacter Reserch

      Volume: 27 Pages: 129-135

    • Related Report
      2023 Annual Research Report
  • [Journal Article] The Helicobacter pylori Genome Project: insights into H. pylori population structure from analysis of a worldwide collection of complete genomes2023

    • Author(s)
      Kaisa Thorell, Zilia Y. Munoz-Ramirez, Difei Wang, Santiago Sandoval-Motta, Rajiv Boscolo Agostini, Silvia Ghirotto, Roberto C. Torres, HpGP Research Network, Daniel Falush, M. Constanza Camargo & Charles S. Rabkin
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 8184-8184

    • DOI

      10.1038/s41467-023-43562-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Utilization of an Automated Latex Agglutination Turbidity Assay for Assessing Gastric Mucosal Alteration during Helicobacter pylori Infection2023

    • Author(s)
      Khangai Ayush、Akada Junko、Saruuljavkhlan Batsaikhan、Gantuya Boldbaatar、Azzaya Dashdorj、Oyuntsetseg Khasag、Davaadorj Duger、Uchida Tomohisa、Matsumoto Takashi、Yamaoka Yoshio
    • Journal Title

      Gut and Liver

      Volume: 18 Issue: 1 Pages: 60-69

    • DOI

      10.5009/gnl220464

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 日本国内より分離されたHelicobacter pylori の集団構造解析2023

    • Author(s)
      友成航平, Batsaikhan S, Alfaray, RI, Fauzia KA, 松成修, 赤田純子, 松本昂, 珍田大輔, 下山克, 金城渚, 金城徹, 金城福則, 山岡吉生
    • Journal Title

      大分県医学会雑誌

      Volume: 29 Pages: 100-108

    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Helicobacter pylori genomes reveal Paleolithic human migration to the east end of Asia2022

    • Author(s)
      Suzuki Rumiko、Saitou Naruya、Matsuari Osamu、Shiota Seiji、Matsumoto Takashi、Akada Junko、Kinjo Nagisa、Kinjo Fukunori、Teruya Kuniko、Shimoji Makiko、Shiroma Akino、Kato Mototsugu、Satou Kazuhito、Hirano Takashi、Asaka Masahiro、Kryukov Kirill、Moodley Yoshan、Yamaoka Yoshio
    • Journal Title

      iScience

      Volume: 25 Issue: 7 Pages: 104477-104477

    • DOI

      10.1016/j.isci.2022.104477

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genome-wide association study of gastric cancer- and duodenal ulcer-derived Helicobacter pylori strains reveals discriminatory genetic variations and novel oncoprotein candidates2021

    • Author(s)
      Tuan V P、Yahara K、Dung H D Q、Binh T T、Huu T P、Tri T D、Thuan N P M、Khien V V、Trang T T H、Phuc B H、Tshibangu-Kabamba E、Matsumoto T、Akada J、Suzuki R、Okimoto T、Kodama M、Murakami K、Yano H、Fukuyo M、Takahashi N、Kato M、Nishiumi S、Azuma T、Ogura Y、Hayashi T、Toyoda A、Kobayashi I、Yamaoka Y
    • Journal Title

      Microbial Genomics

      Volume: 7 Issue: 11 Pages: 1-17

    • DOI

      10.1099/mgen.0.000680

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Serum Helicobacter pylori antibody reactivity in seven Asian countries using an automated latex aggregation turbidity assay2021

    • Author(s)
      Akada J,Tshibangu‐K,Tuan V,Kurogi S,Matsuo Y,Ansari S,Doohan D,Phuc B,Subsomwong P,Waskito L,Binh T,Nguyen L,Khien V,Dung H,Miftahussurur M,Syam A,Tshering L,Vilaichone R,Mahachai V,Ratanachu‐ek T,Shrestha P,Yee T,Htet K,Aftab H,Matsuhisa T,Uchida T,Okimoto T,Mizukami K,Kodama M,Murakami K,Takahashi N,Yamaoka Yoshio
    • Journal Title

      Journal of Gastroenterology and Hepatology

      Volume: - Issue: 8 Pages: 1-10

    • DOI

      10.1111/jgh.15467

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Helicobacter pylori type 4 secretion systems as gastroduodenal disease markers2021

    • Author(s)
      Phuc Bui Hoang、Tuan Vo Phuoc、Dung Ho Dang Quy、Binh Tran Thanh、Tung Pham Huu、Tri Tran Dinh、Thuan Ngo Phuong Minh、Van Khien Vu、Trang Tran Thi Huyen、Akada Junko、Matsumoto Takeshi、Yamaoka Yoshio
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 4584-4584

    • DOI

      10.1038/s41598-021-83862-1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Entroccus Hirae Attenuates chemokine and Induces Dna Damage In Gastric Epithelial Cell2023

    • Author(s)
      Saruuljavkhlan B, Gantuya B, Alfaray RI, Akada J, Matsumoto T, Tsukamoto Y, Oyuntsetseg K, Yamaoka Y
    • Organizer
      DDW USA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation of Low-Grade Intestinal Metaplasia From Clinical Dyspepsia Patients INA Country With Low-Incidence of Gastric Cancer:From Human to Helicobactor pylori Perspective2023

    • Author(s)
      Alfaray RI, Miftahussurur M, Saruuljavkhlan B, Fauzia KA, Utomo, DH, Akada J, Matsumoto T, Yamaoka Y
    • Organizer
      DDW USA
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Amoxicillin resistance in Helicobacter pylori: Identification of new resistance-conferring mutations in the penicillin-binding protein 1A2023

    • Author(s)
      Cimuanga-Mukanya A, Tshibangu-Kabamba E, Ngoma-Kisoko PdeJ , Disashi-Tumba G, Matsumoto T,Akada J and Yamaoka Y
    • Organizer
      The 19th Korea-Japan H. pylori Joint Symposium.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Utilization of an Automated Latex Agglutination Turbidity Assay for Assessing Gastric Mucosal Alteration during Helicobacter pylori Infection2023

    • Author(s)
      Khangai A, Akada J, Azzaya D, Batsaikhan S, Gantuya B, Oyuntsetseg K, Davaadaorj D, Matsumoto T, Uchida T, Akada J, and Yamaoka Y.
    • Organizer
      The 19th Korea-Japan H. pylori Joint Symposium.
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] The impact of mobile genetic elemants and toxin-antitoxin system on Helicobacter pylori adaptability and antimicrobial resistance: A wisdom from Japan-South Korea whole-genome sequence collection.2022

    • Author(s)
      Alfaray RI, Batsaikhan S, Fauzia KA, Akada J, Matsumoto T, Yamaoka Y.
    • Organizer
      The 18th Japan-Korea H. pylori Joint Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification of the Helicobacter pylori genomic islands in a high gastric cancer region.2022

    • Author(s)
      Batsaikhan S, Alfaray RI, Matsumoto T, Akada J, Yamaoka Y.
    • Organizer
      The 18th Japan-Korea H. pylori Joint Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 胃癌特異的一塩基多型を有するピロリ菌dsbG遺伝子の比較解析2021

    • Author(s)
      赤田 純子
    • Organizer
      第7回日本ヘリコバクター学会学術集会
    • Related Report
      2021 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi