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Molecular mechanisms of steroid resistance in severe asthma with obesity

Research Project

Project/Area Number 17K09625
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Respiratory organ internal medicine
Research InstitutionDokkyo Medical University

Principal Investigator

Masako To  獨協医科大学, 医学部, 准教授 (90595597)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords気管支喘息 / 肥満 / ステロイド抵抗性 / 体脂肪率
Outline of Final Research Achievements

The main aim of this study was to investigate steroid sensitivity of asthmatic patients with obesity and clarify obesity-related factors that modulate steroid sensitivity. The steroid sensitivity in female asthmatic patients with obesity was impaired compared to that in no-obese asthmatic patients. The impaired steroid sensitivity in peripheral blood mononuclear cells (PBMCs) obtained from female asthmatic patients with obesity was restored by metformin, an AMP-activated protein kinase activator. From the result, the obesity-related modulation of AMKP activity potentially involves in the impaired steroid sensitivity in female asthmatic patients with obesity.

Academic Significance and Societal Importance of the Research Achievements

肥満は気管支喘息の重症化因子として臨床的に認識されている。しかしその重症化機序については十分には解明されていない。そのため、肥満を有する重症喘息患者の治療に際しては、コントロールに苦慮することがしばしばある。本研究では、肥満を有する女性気管支喘息患者ではステロイド感受性の低下があり、これにはAMPKが関与している可能性が示唆された。肥満患者ではAMPKの低下が知られており、AMPK低下とステロイド感受性低下の関連をさらに深く探索することで、肥満を有する重症喘息患者に対する新しい薬剤の開発につなげていける可能性がある。

Report

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

    (20 results)

All 2020 2019 2018 2017

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Persistent Asthma from Childhood to Adulthood Presents a Distinct Phenotype of Adult Asthma.2020

    • Author(s)
      To M, Tsuzuki R, Katsube O, Yamawaki S, Soeda S, Kono Y, Honda N, Kano I, Haruki K, To Y.
    • Journal Title

      J Allergy Clin Immunol Pract.

      Volume: 8 Issue: 6 Pages: 1921-1927

    • DOI

      10.1016/j.jaip.2020.01.011

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A difference in the effects of a comorbidity of allergic rhinitis on asthma symptoms between obese and non-obese patients2019

    • Author(s)
      To Masako、Tsuzuki Ryuta、Katsube Otohiro、Yamawaki Satoshi、Soeda Seiko、Kono Yuta、Honda Natsue、Kano Ichino、Haruki Kosuke、To Yasuo
    • Journal Title

      Respiratory Investigation

      Volume: 57 Issue: 3 Pages: 286-289

    • DOI

      10.1016/j.resinv.2019.02.006

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 肥満を有する成人喘息患者の病態と治療への展望2019

    • Author(s)
      党 雅子、黨 康夫
    • Journal Title

      日本呼吸器学会誌

      Volume: 8 Pages: 365-374

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elevated serum periostin level in patients with chronic cough and airway hyperresponsiveness2019

    • Author(s)
      Kono Yuta、To Masako、Tsuzuki Ryuta、Haruki Kosuke、To Yasuo
    • Journal Title

      Respiratory Investigation

      Volume: 57 Issue: 2 Pages: 122-125

    • DOI

      10.1016/j.resinv.2018.11.003

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Case series of allergic bronchopulmonary aspergillosis treated successfully and safely with long-term mepolizumab2019

    • Author(s)
      Soeda Seiko、To Masako、Kono Yuta、Yamawaki Satoshi、Tsuzuki Ryuta、Katsube Otohiro、Watanabe Naoto、To Yasuo
    • Journal Title

      Allergology International

      Volume: 68 Issue: 3 Pages: 377-379

    • DOI

      10.1016/j.alit.2018.12.008

    • NAID

      130007678463

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Obesity-associated severe asthma in an adult Japanese population2018

    • Author(s)
      To Masako、Hitani Akihiro、Kono Yuta、Honda Natsue、Kano Ichino、Haruki Kosuke、To Yasuo
    • Journal Title

      Respiratory Investigation

      Volume: 56 Issue: 6 Pages: 440-447

    • DOI

      10.1016/j.resinv.2018.07.003

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Allergic bronchopulmonary aspergillosis successfully treated with benralizumab2018

    • Author(s)
      Soeda Seiko、Kono Yuta、Tsuzuki Ryuta、Yamawaki Satoshi、Katsube Otohiro、To Masako、To Yasuo
    • Journal Title

      The Journal of Allergy and Clinical Immunology: In Practice

      Volume: - Issue: 5 Pages: 1633-1635

    • DOI

      10.1016/j.jaip.2018.11.024

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] A case of chronic eosinophilic pneumonia successfully treated with mepolizumab2018

    • Author(s)
      To Masako、Kono Yuta、Yamawaki Satoshi、Soeda Seiko、Katsube Otohiro、Kishi Hirohisa、To Yasuo
    • Journal Title

      The Journal of Allergy and Clinical Immunology: In Practice

      Volume: 6 Issue: 5 Pages: 1746-1748.e1

    • DOI

      10.1016/j.jaip.2018.06.017

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Obesity-related systemic oxidative stress: An important factor of poor asthma control2018

    • Author(s)
      To M, Kono Y, Ogura N, Mikami S, Honda N, Hitani A, Kano I, Haruki K, To Y.
    • Journal Title

      Allergology International

      Volume: 67 Issue: 1 Pages: 147-149

    • DOI

      10.1016/j.alit.2017.06.002

    • NAID

      130006322023

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 肥満を有する成人喘息患者の病態と治療への展望2020

    • Author(s)
      党 雅子
    • Organizer
      GSK Severe Asthma Seminar
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] History of Childhood Asthma: A Potential Risk Factor for Poor Asthma Control in Adult Asthma2019

    • Author(s)
      2.M. To, R. Tsuzuki, O. Katsube, S. Yamawaki, S. Soeda, Y. Kono, N. Honda1, I. Kano, K. Haruki, Y. To
    • Organizer
      American Thoracic Society, International Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 肥満を伴う気管支喘息患者におけるステロイド治療抵抗性の機序の検討2019

    • Author(s)
      党 雅子、本田なつ絵、叶 一乃、春木宏介、黨 康夫
    • Organizer
      第40回日本肥満学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 肥満合併喘息患者の特徴と治療戦略2019

    • Author(s)
      党 雅子
    • Organizer
      秋季・東京東部呼吸器フォーラム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Different impacts of comorbidity of allergic rhinitis on obese and non-obese patients with asthma2018

    • Author(s)
      Masako To, Ryuta Tsuzuki, Otohiro Katsube , Satoshi Yamawaki, Seiko Soeda, Yuta Kono, Natsue Honda, Ichino Kano, Kosuke Haruki, MD, Yasuo To
    • Organizer
      23rd Congress of the Asian Pacific Society of Respirology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 肥満と気管支喘息2018

    • Author(s)
      党 雅子
    • Organizer
      西日本閉塞性肺疾患シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 肥満と気管支喘息重症化の関連について2018

    • Author(s)
      党 雅子 、本田なつ絵、叶 一乃、春木宏介、黨 康夫
    • Organizer
      第39回日本肥満学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 小児期喘息から成人への移行症例臨床的特徴2018

    • Author(s)
      党 雅子
    • Organizer
      GSK Severe Asthma Seminar
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Impact of Co-morbidity of Rhinitis on Asthma Symptoms Is Less in Obese Asthmatic Patients Compared to Non-obese Asthmatic Patients2018

    • Author(s)
      M. To, O. Katsube, S. Yamawaki, S. Soeda, Y. Kono, N. Honda, I. Kano, K. Haruki, Y. To
    • Organizer
      American Thoracic Society, International Conference 2018
    • Related Report
      2018 Research-status Report
  • [Presentation] Obesity, defined by body mass index of equal or more than 25 kg/m2, is a risk factor for severe acute exacerbation of asthma in East-Asian female populations2017

    • Author(s)
      M. To, Y. Kono, S. Yamawaki, O. Katsube, N. Honda, A. Hitani, I. Kano, K. Haruki, Y. To
    • Organizer
      22ed congress of Asian Pacific Society of Respirology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Obesity associated severe asthma in East Asian population.2017

    • Author(s)
      2.M. To, N. Ogura, Y. Kono, S. Mikami, N. Honda, A. Hitani, I. Kano, K. Haruki, Y. To.
    • Organizer
      American Thoracic Society, International Conference.
    • 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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