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Analysis of the gut microbe-derived molecular pattern recognized by the serum IgG of ulcerative colitis patients

Research Project

Project/Area Number 17K08833
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Bacteriology (including mycology)
Research InstitutionKagawa University

Principal Investigator

KUWAHARARA TOMOMI  香川大学, 医学部, 教授 (60263810)

Co-Investigator(Kenkyū-buntansha) 橋本 雅仁  鹿児島大学, 理工学域工学系, 教授 (30333537)
石川 秀樹  京都府立医科大学, 医学(系)研究科(研究院), 特任教授 (30351795)
今大路 治之 (中山治之)  香川大学, 医学部, 講師 (80294669)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords潰瘍性大腸炎 / 腸内細菌 / IgG / IgG結合細菌 / 腸内細菌科細菌 / Bacteroides / 菌叢解析 / Prevotella / 表層分子 / Protein G / 免疫沈降
Outline of Final Research Achievements

Ulcerative colitis (UC) is one of the inflammatory bowel diseases characterized by frequent bloody diarrhea and abdominal pain. Most of the cases recurrent the symptoms and are refractory to medical treatment. In this study, we found that serum IgG of UC patients strongly reacts to Gram-negative enteric bacteria such as Proteus vulgaris and Bacteroides dorei.

Academic Significance and Societal Importance of the Research Achievements

潰瘍性大腸炎において過剰な免疫反応を引き起こしている腸内菌を同定した。今後、IgG抗体の認識抗原の同定を進めることにより、潰瘍性大腸炎の発症に腸内細菌叢がどのように関与しているのかを明らかにすることが可能となる。本研究成果は潰瘍性大腸炎の予後の予測のための診断マーカーや新規治療法の開発に貢献するものと考える。

Report

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

    (15 results)

All 2020 2019 2018 2017

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 9 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Effect of thymoquinone on Fusobacterium nucleatum-associated biofilm and inflammation2020

    • Author(s)
      Tada A, Nakayama-Imaohji H, Yamasaki H, Miad E, Nagao T, Yagi H, Ishikawa M, Shibuya K, Kuwahara T
    • Journal Title

      Mol Med Rep

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Partially hydrolyzed guar gum alleviates small intestinal mucosal damage after massive small bowel resection along with changes in the intestinal microbiota2019

    • Author(s)
      Fujii Takayuki、Chiba Yoichi、Nakayama-Imaohji Haruyuki、Onishi Shun、Tanaka Aya、Katami Hiroto、Kaji Tatsuru、Ieiri Satoshi、Miki Takanori、Ueno Masaki、Kuwahara Tomomi、Shimono Ryuichi
    • Journal Title

      Journal of Pediatric Surgery

      Volume: 54 Issue: 12 Pages: 2514-2519

    • DOI

      10.1016/j.jpedsurg.2019.08.048

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An enhanced green fluorescence protein (EGFP)-based reporter assay for quantitative detection of sporulation in Clostridium perfringens SM101.2019

    • Author(s)
      Wakabayashi Y, Nariya H, Yasugi M, Kuwahara T, Sarker MR, Miyake M.
    • Journal Title

      Int J Food Microbiol

      Volume: 291 Pages: 144-150

    • DOI

      10.1016/j.ijfoodmicro.2018.11.015

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic diversity and persistent colonization of Enterococcus faecalis on ocular surfaces2018

    • Author(s)
      Todokoro D, Eguchi H, Suzuki T, Suzuki M, Nakayama-Imaohji H, Kuwahara T, Nomura T, Tomita H, Akiyama H.
    • Journal Title

      Jpn J Ophthalmol.

      Volume: 62 Issue: 6 Pages: 699-705

    • DOI

      10.1007/s10384-018-0630-5

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] IgA regulates the composition and metabolic function of gut microbiota by promoting symbiosis between bacteria.2018

    • Author(s)
      Nakajima A, Vogelzang A, Maruya M, Miyajima M, Murata M, Son A, Kuwahara T, Tsuruyama T, Yamada S, Matsuura M, Nakase H, Peterson DA, Fagarasan S, Suzuki K.
    • Journal Title

      J Exp Med.

      Volume: 215 Issue: 8 Pages: 2019-2034

    • DOI

      10.1084/jem.20180427

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterization of a recombinant Bacteroides fragilis sialidase expressed in Escherichia coli2018

    • Author(s)
      Yamamoto Takaaki、Ugai Hideyo、Nakayama-Imaohji Haruyuki、Tada Ayano、Elahi Miad、Houchi Hitoshi、Kuwahara Tomomi
    • Journal Title

      Anaerobe

      Volume: 50 Pages: 69-75

    • DOI

      10.1016/j.anaerobe.2018.02.003

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] L-histidine augments the oxidative damage against Gram-negative bacteria by hydrogen peroxide.2018

    • Author(s)
      Tamiko Nagao,Haruyuki Nakayama-Imaohji,Miad Elahi,Ayano Tada,Emika Toyonaga,Hisashi Yamasaki,Katsuichiro Okazaki,Hirokazu Miyoshi,Koichiro Tsuchiya,Tomomi Kuwahara.
    • Journal Title

      International Journal of Molecular Medicine

      Volume: 41 Pages: 2847-2854

    • DOI

      10.3892/ijmm.2018.3473

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modulatory influence of segmented filamentous bacteria on transcriptomic response of gnotobiotic mice exposed to TCDD.2017

    • Author(s)
      Stedtfeld RD, Chai B, Crawford RB, Stedtfeld TM, Williams MR, Xiangwen S, Kuwahara T, Cole JR, Kaminski NE, Tiedje JM, Hashsham SA.
    • Journal Title

      Front Microbiol

      Volume: 8 Pages: 1708-1708

    • DOI

      10.3389/fmicb.2017.01708

    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Journal Article] TLR2-stimulating contaminants in glycoconjugate fractons prepared from Bacteroides fragilis.2017

    • Author(s)
      Hashimoto M, Waki J, Nakayama-Imaohji H, Ozono M, Hashiguchi S, Kuwahara T.
    • Journal Title

      Innate Immun

      Volume: 23 Issue: 5 Pages: 449-458

    • DOI

      10.1177/1753425917714313

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Nutritional benefit of recycling bowel content in an infant with short bowel syndrome.2017

    • Author(s)
      Tanaka A, Nakayama-Imaohji H, Shimono R, Suzuki M, Fujii T, Kubo H, Yasuda S, Koyano K, Nakamura S, Katsuki N, Kuwahara T.
    • Journal Title

      J Pediatr Gastroenterol Nutr

      Volume: 65 Issue: 3 Pages: 75-76

    • DOI

      10.1097/mpg.0000000000001630

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 酪酸によるヒト大腸癌細胞の分化誘導とアポトーシスに対する腸 内細菌の影響2020

    • Author(s)
      多田 彩乃,今大路 治之,桑原 知巳
    • Organizer
      第94回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 抗菌薬暴露後に変動する乳幼児腸内フローラの代謝機能2020

    • Author(s)
      今大路 治之,田中 彩,下野 隆一,豊田 敦,高見 英人,桑原 知巳
    • Organizer
      第94回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 知っておきたい腸内細菌の基礎知識2018

    • Author(s)
      桑原知巳
    • Organizer
      2018 年度NR・サプリメントアドバイザーレベルアップセミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 機能メタゲノム解析から見た抗菌薬投与前後 の乳幼児腸内フローラ2018

    • Author(s)
      今大路治之、田中彩、下野隆一、豊田敦、髙見英人、桑原知巳
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] OUTER MEMBRANE VESICLE PRODUCTION IN BACTEROIDES FRAGILIS IS REGULATED BY DNA INVERSION2017

    • Author(s)
      Haruyuki Nakayama-Imaohji, Tomomi Kuwahara
    • Organizer
      FEMS 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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