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Analyses of mmune abnormality at the extrahepatic bile ducts of biliary atresia patients

Research Project

Project/Area Number 20K08987
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Higashi Mayumi  京都府立医科大学, 医学(系)研究科(研究院), 助教 (10380453)

Co-Investigator(Kenkyū-buntansha) 文野 誠久  京都府立医科大学, 医学(系)研究科(研究院), 助教 (40405254)
田尻 達郎  九州大学, 医学研究院, 教授 (80304806)
青井 重善  京都府立医科大学, 医学(系)研究科(研究院), 講師 (90308669)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords胆道閉鎖症 / 免疫反応 / IL13 / 胆道上皮細胞
Outline of Research at the Start

本研究では、胆道閉鎖症において肝外胆管における異常免疫反応(アレルギー、自己免疫)の所見を明らかにするとともに、これらの免疫反応を増強させる可能性のある内分泌的因子の作用を解析することで、根治術後の自己肝における病態進行の抑制につながる機序を解明する。また、同時に、これらの研究を継続的に進めるためのツールとして胆道閉鎖症の残存肝外胆管の上皮細胞の安定株の樹立をおこなう。

Outline of Final Research Achievements

The aims of this study were to analyze the abnormal immune reaction at the extrahepatic bile ducts of biliary atresia (BA) patients, and also establishing the stable cell culture methods of bile duct epitheliums from BA patients for the analyses.
We performed the histological analyses of surgically resected tissues from BA patients. We found that the locations of CD45+ inflammatory cells and IL13 are related, and also periostin, a protein produced from fibroblast, is also abundant around the damaged bile ducts. The cultured fibroblasts from the portal area of liver produced periostin by IL13 stimulation. This indicated that IL13 is related to the inflammation and fibrogenesis at the extrahepatic bile ducts of BA patients.
We also established the stable culture metheos of cholangiocytes from the gall bladders or hepatic portal area of BA patients.The cells were immortalized by inducing SV40T and hTERT genes, and cultured in our original conditioned medium in 2D or 3D culture methods.

Academic Significance and Societal Importance of the Research Achievements

胆道閉鎖症の原因はいまだ判明しておらず、肝硬変の進行を阻止する治療法なども確立されていない。本研究では、胆道閉鎖症の病勢の進行、線維化等に関わる免疫学的な因子の解析を行い、病態の解明、肝硬変進行に対する治療を探求するうえで、IL13 - periostin が手がかりとなり得ると考えられる。
また、in vitro解析のため、手術時検体からの胆管細胞の安定した培養法を確立しており、これらの因子の胆管上皮への影響を解析するうえで有用である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (5 results)

  • [Journal Article] IL13 and periostin in active fibrogenic areas of the extrahepatic bile ducts in biliary atresia patients2022

    • Author(s)
      Sengoku Yuki、Higashi Mayumi、Nagayabu Kazuya、Takayama Shohei、Fumino Shigehisa、Aoi Shigeyoshi、Furukawa Taizo、Tajiri Tatsuro
    • Journal Title

      Pediatric Surgery International

      Volume: 38 Issue: 12 Pages: 1847-1853

    • DOI

      10.1007/s00383-022-05238-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immunohistochemical staining of phosphorylated-ERK in post-chemotherapeutic samples is a potential predictor of the prognosis of neuroblastoma2021

    • Author(s)
      Tanaka Tomoko、Togashi Yuichi、Takeuchi Yuki、Higashi Mayumi、Fumino Shigehisa、Tajiri Tatsuro
    • Journal Title

      Pediatric Surgery International

      Volume: 37 Issue: 2 Pages: 287-291

    • DOI

      10.1007/s00383-020-04806-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Difficulty in Diagnosis of a Case of Intramesenteric Hernia in Children: A Case Report2020

    • Author(s)
      三村 和哉、青井 重善、竹内 雄毅、坂井 宏平、東 真弓、文野 誠久、古川 泰三、田尻 達郎
    • Journal Title

      Journal of the Japanese Society of Pediatric Surgeons

      Volume: 56 Issue: 7 Pages: 1088-1092

    • DOI

      10.11164/jjsps.56.7_1088

    • NAID

      130007958381

    • ISSN
      0288-609X, 2187-4247
    • Year and Date
      2020-12-20
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tension Gastrothorax Due to Late-Onset Congenital Diaphragmatic Hernia: Three Case Reports2020

    • Author(s)
      鈴木 健斗、文野 誠久、古川 泰三、竹内 雄毅、竹本 正和、坂井 宏平、東 真弓、青井 重善、田尻 達郎
    • Journal Title

      Journal of the Japanese Society of Pediatric Surgeons

      Volume: 56 Issue: 7 Pages: 1123-1127

    • DOI

      10.11164/jjsps.56.7_1123

    • NAID

      130007958368

    • ISSN
      0288-609X, 2187-4247
    • Year and Date
      2020-12-20
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Case of Secondary Appendicitis Suspected of Being Due to Inflammation Spreading From the Umbilical Artery Cord2020

    • Author(s)
      瀧本 篤朗、井口 雅史、坂井 宏平、東 真弓、文野 誠久、青井 重善、古川 泰三、田尻 達郎
    • Journal Title

      Journal of the Japanese Society of Pediatric Surgeons

      Volume: 56 Issue: 2 Pages: 210-213

    • DOI

      10.11164/jjsps.56.2_210

    • NAID

      130007833440

    • ISSN
      0288-609X, 2187-4247
    • Year and Date
      2020-04-20
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gallbladder wall abnormality in biliary atresia of mouse Sox17+/? neonates and human infants2020

    • Author(s)
      Uemura Mami、Higashi Mayumi、Pattarapanawan Montri、Takami Shohei、Ichikawa Naoki、Higashiyama Hiroki、Furukawa Taizo、Fujishiro Jun、Fukumura Yuki、Yao Takashi、Tajiri Tatsuro、Kanai-Azuma Masami、Kanai Yoshiakira
    • Journal Title

      Disease Models & Mechanisms

      Volume: 13 Pages: 042119-042119

    • DOI

      10.1242/dmm.042119

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Maldevelopment of intrapulmonary bronchial cartilage in congenital diaphragmatic hernia2020

    • Author(s)
      Tando So、Sakai Kohei、Takayama Shohei、Fukunaga Kenji、Higashi Mayumi、Fumino Shigehisa、Aoi Shigeyoshi、Furukawa Taizo、Tajiri Tatsuro、Ogi Hiroshi、Itoh Kyoko
    • Journal Title

      Pediatric Pulmonology

      Volume: 55 Issue: 7 Pages: 1771-1780

    • DOI

      10.1002/ppul.24799

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Safe diagnostic management of malignant mediastinal tumors in the presence of respiratory distress: a 10-year experience2020

    • Author(s)
      Tanaka Tomoko、Amano Hizuru、Tanaka Yujiro、Takahashi Yoshiyuki、Tajiri Tatsuro、Tainaka Takahisa、Shirota Chiyoe、Sumida Wataru、Yokota Kazuki、Makita Satoshi、Tani Yukiko、Hinoki Akinari、Uchida Hiroo
    • Journal Title

      BMC Pediatrics

      Volume: 20 Issue: 1 Pages: 292-292

    • DOI

      10.1186/s12887-020-02183-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 当院での胆道閉鎖症に対する葛西再手術症例の検討.2022

    • Author(s)
      嶋村 藍,永藪和也,竹本正和,髙山勝平,金 聖和,東 真弓,文野誠久,青井重善
    • Organizer
      第41回日本小児内視鏡外科・手術手技研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 胆道閉鎖症患者由来胆管上皮細胞の培養.2022

    • Author(s)
      東 真弓,嶋村 藍,永藪和也,古川泰三,文野誠久,青井重善
    • Organizer
      第49回日本胆道閉鎖症研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 当院での胆道閉鎖症に対する葛西再手術症例の検討.2022

    • Author(s)
      嶋村 藍,永藪和也,竹本正和,髙山勝平,金 聖和,東 真弓,文野誠久,青井重善
    • Organizer
      第49回日本胆道閉鎖症研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 胆道閉鎖症の肝外胆管周囲における IL13 および periostin の病態への関与2022

    • Author(s)
      仙石由貴、東真弓、永藪和也、古川泰三、髙山勝平、金聖和、文野誠久、青井重善、田尻達郎
    • Organizer
      第59 回日本小児外科学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 胆道閉鎖症におけるIL-13およびPeriostinの肝門部線維化への関与.2021

    • Author(s)
      仙石由貴,東 真弓,永藪和也,古川泰三,髙山勝平,金 聖和,文野誠久,青井重善,田尻達郎
    • Organizer
      第48回日本胆道閉鎖症研究会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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