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Determination of underlying cause of esophageal achalasia by the use of cytokine profiles

Research Project

Project/Area Number 17K09351
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Gastroenterology
Research InstitutionKyushu University

Principal Investigator

Ihara Eikichi  九州大学, 医学研究院, 准教授 (80612390)

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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords食道アカラシア / 高解像度食道内圧検査 / サイトカインプロフィール / 経口内視鏡的筋層切開術 / 食道赤ラシア
Outline of Final Research Achievements

Esophageal achalasia is classified into three subtypes including Type I, Type II and Type III. From the viewpoint of immune and inflammatory responses, it has been shown that both Type I and Type II are Th1 and Th17-associated disorders while Type III are simply Th17-associated disorder. By discrimination analysis using esophageally expressed cytokine profiles, there was a significant difference in the cytokine profiles among three subtypes in accordance with difference in the finding of esophageal manometry results. On the other hand, a prospective observational study to examine usefulness of acotiamide for esophagogastric outflow obstruction (EGJOO), a precursor of achalasia, has revealed that 52 % of the patients with EGJOO was cured.

Academic Significance and Societal Importance of the Research Achievements

食道アカラシアとその前駆状態とされるEGJOOは、胸のつかえ症状から生活の質や労働生産性を低下させると共に致死的となる誤嚥性肺炎を合併するため高齢化社会を迎えた本邦において重要な疾患であるが、未だ病因・病態は解明されておらず治療は確立していない。本研究の学術的意義は、食道粘膜サイトカインプロフィールの観点からこの2つの疾患の病態の一端を解明したことである。また、本研究の社会的意義は、アコチアミドがEGJOOの治療薬及び食道アカラシアの予防薬となる可能性を示し、本邦の社会的ニーズである2つの疾患の治療法の開発へ直結するエビデンスを得たことである。

Report

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

    (11 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (8 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Involvement of different receptor subtypes in prostaglandin e2-induced contraction and relaxation in the lower esophageal sphincter and esophageal body.2019

    • Author(s)
      Bai X, Ihara E, Otsuka Y, Tsuruta S, Hirano K, Tanaka Y, Ogino H, Hirano M, Chinen T, Akiho H, Nakamura K, Oda Y, Ogawa Y
    • Journal Title

      Eur J Pharmacol

      Volume: 857 Pages: 172405-172405

    • DOI

      10.1016/j.ejphar.2019.172405

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Clinical characterization of vonoprazan-refractory gastroesophageal reflux disease.2019

    • Author(s)
      Hamada S, Ihara E, Ikeda H, Muta K, Ogino H, Chinen T, Tanaka Y, Ogawa Y
    • Journal Title

      Digestion

      Volume: In press Issue: 2 Pages: 197-204

    • DOI

      10.1159/000503340

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mucosally Expressed Cytokines are Associated with the Esophageal Motility Function.2018

    • Author(s)
      Fukaura K, Ihara E, Ogino H, Iboshi Y, Muta K, Xiaopeng B, Hamada S, Hata Y, Iwasa T, Aso A, Nakamura K, Ogawa Y.
    • Journal Title

      Digestion

      Volume: 98 Issue: 2 Pages: 95-103

    • DOI

      10.1159/000487708

    • Related Report
      2018 Research-status Report 2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 下部食道括約筋部の粘膜及び筋層組織に発現するサイトカインプロファイルによるアカラシアサブタイプの病態解析2019

    • Author(s)
      向井康二、伊原栄吉、鬼丸学、井上晴洋、小川佳宏
    • Organizer
      第61日本平滑筋学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Both incomplete LES relaxation and premature contraction of esophageal body are characteristics of dry swallow.2018

    • Author(s)
      Muta K, Ihara E, Fukaura K, Bai X, Hata Y, Ogino H, Ochiai T, Nakamura K and Ogawa Y
    • Organizer
      Digestive Disease Week 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Mucosally expressed protease-activated receptor2 and transient receptor potential vanilloid1 are associated with functional heartburn.2018

    • Author(s)
      Muta K, Ihara E, Hamada S, Fukaura K, Bai X, Otsuka Y, Ogino H, Bai X, Mukai K, Komori K, Hata Y, Mukai K, Komori K, Iwasa T, Akiho H, Nakamura K and Ogawa Y
    • Organizer
      Digestive Disease Week 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] The esophageal intraluminal baseline impedance differentiates reflux hypersensitivity from NERD.2018

    • Author(s)
      Hamada S, Ihara E, Muta K, Fukaura K, Ogino H, Bai X, Mukai K, Otsuka Y, Komori K, Hata Y, Aso A, Iwasa T, Ochiai T, Akiho H, Nakamura K and Ogawa Y
    • Organizer
      Digestive Disease Week 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nicotine caused the dual regulation of tone in the porcine lower esophageal sphincter through excitatory and inhibitory enteric innervation.2018

    • Author(s)
      Bai X, Ihara E, Otsuka Y, Ogino H, Akiho H, Nakamura K and Ogawa Y
    • Organizer
      Digestive Disease Week 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Esophagogastric Junction Outflow Obstruction is Discriminated from Achalasia by Esophageally Expressed Cyotokine Profiles Using Linear Discriminant Analysis2017

    • Author(s)
      Hata Y
    • Organizer
      Digestive Disease Week 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Rho Kinase-Associated Myogenic Contraction Compensates for Reduced Force Induced by Release After Stretching in the Porcine Lower Esophageal Sphincter2017

    • Author(s)
      Otsuka Y
    • Organizer
      Digestive Disease Week 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Lower Esophageal Sphincter (LES) Receptive Relaxation is Indispensable for Successful LES Relaxation in Wet Swallowing2017

    • Author(s)
      Muta K
    • Organizer
      Digestive Disease Week 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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