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Olfactory mucosa dysfunction Induced by oxidative nitrosative stress - Elucidation of olfactory mucosa secretory abnormalities in airway remodeling

Research Project

Project/Area Number 21K09615
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionDokkyo Medical University

Principal Investigator

Haruna Shinichi  獨協医科大学, 医学部, 教授 (60198934)

Co-Investigator(Kenkyū-buntansha) 金谷 洋明  獨協医科大学, 医学部, 非常勤講師 (40265301)
柏木 隆志  獨協医科大学, 医学部, 講師 (50622982)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords嗅覚障害 / 好酸球 / FeNO / 窒素化ストレス / ニトロチロシン / 嗅粘膜 / ニトロチロシン(3-NT) / 副鼻腔粘膜 / リモデリング / ボーマン腺 / 一酸化窒素 / 糖蛋白 / 酸化窒素化ストレス / 好酸球性副鼻腔炎 / NO / 気道リモデリング / 嗅粘膜障害 / 酸化・窒素化ストレス / 嗅粘膜分泌
Outline of Research at the Start

喘息合併好酸球性副鼻腔炎では後部鼻副鼻腔と嗅裂部に強い好酸球炎症が認められ、臨床的に病態の早期から嗅覚異常を呈する。喘息患者の呼気には多量のスーパオキサイドやNOなどの組織障害を示すガス状メディエーターが放出され、下気道リモデリング病態を形成している。鼻副鼻腔粘膜での多量のNOとともに気管支呼気中の多量のガス状メディエーターは後鼻孔から上気道にも流入し、鼻腔後部から嗅裂部へ好酸球性炎症を惹起していると予期される。本研究では呼吸粘膜と嗅粘膜での好酸球浸潤や分泌異常状態の程度と気道ガス状メディエーターとの関連を組織学的及び生化学的評価し、嗅粘膜分泌異常の因子を解明する。

Outline of Final Research Achievements

In asthma-associated eosinophilic sinusitis, unlike usual chronic sinusitis, eosinophilic lesions in the posterior sinuses and olfactory cleft are likely to develop early on and cause olfactory complaints. Histological examination of the respiratory and olfactory mucosa revealed significant eosinophilic infiltration and expression of nitrotyrosine (3-NT), a marker of nitrosative stress, in the posterior nasal mucosa. Therefore, it is thought that the influx of large amounts of NO from the lower respiratory tract mucosa into the posterior nasal cavity due to asthma pathology forms oxidative and nitrosative stress, induces eosinophilic inflammation in the nasal sinuses and olfactory mucosa, and leads to abnormal olfactory mucosa secretion.

Academic Significance and Societal Importance of the Research Achievements

喘息合併好酸球性副鼻腔炎では、上気道のみの治療でなく、喘息治療を十分に改善・維持させて、下気道リモデリングにより生じる過剰なガス状メディエーター、特に鼻副鼻腔へのNOの流入を減少させ、鼻副鼻腔と嗅粘膜の好酸球炎症を抑制させる。その結果、嗅覚障害を改善し好酸球性副鼻腔炎の難治化に対応できる。

Report

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

    (12 results)

All 2024 2023 2022 2021 2019

All Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 10 results,  Open Access: 7 results) Presentation (2 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Inflammatory molecular endotypes of nasal polyps derived from White and Japanese populations2024

    • Author(s)
      Nakayama Tsuguhisa、Kashiwagi Takashi, Haruna Shin-ichi
    • Journal Title

      Journal of Allergy and Clinical Immunology

      Volume: 149

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A review of current biomarkers in chronic rhinosinusitis with or without nasal polyps.2023

    • Author(s)
      Nakayama T, Haruna S
    • Journal Title

      Expert Rev Clin Immunol.

      Volume: 7 Issue: 8 Pages: 1-10

    • DOI

      10.1080/1744666x.2023.2200164

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long-Term Efficacy of Dupilumab for Eosinophilic Chronic Rhinosinusitis2023

    • Author(s)
      Tsunemi Yasuhiro、Nakayama Tsuguhisa、Kashiwagi Takashi、Akutsu Makoto、Saito Shota、Haruna Shinichi
    • Journal Title

      American Journal of Rhinology & Allergy

      Volume: 38 Issue: 1 Pages: 14-22

    • DOI

      10.1177/19458924231204128

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dupilimab improves eosinophilic otitis media associated with eosinophilic chronic rhinosinusitis2023

    • Author(s)
      Nakashima D, Haruna S, et al.
    • Journal Title

      Allergo Int.

      Volume: 13 Issue: 1 Pages: 53-65

    • DOI

      10.37796/2211-8039.1237

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Inflammatory molecular endotypes of nasal polyps derived from White and Japanease polulations.2022

    • Author(s)
      Nakayama T, Haruna S,et al.
    • Journal Title

      J Allergy Clin Immunol.

      Volume: 149 Issue: 4 Pages: 1296-1308

    • DOI

      10.1016/j.jaci.2021.11.017

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Retinoic acid promotes fibrinolysis and may regulate polyp formation.2022

    • Author(s)
      Sakashita M, Haruna S, et al.
    • Journal Title

      J Allergy Clin Immunol.

      Volume: 150 Issue: 5 Pages: 1114-1124

    • DOI

      10.1016/j.jaci.2022.05.021

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Inflammatory molecular entotypes of nasal polyps derived from White and Japanese populations2022

    • Author(s)
      Nakayama T, Haruna S, et al
    • Journal Title

      J Allergy Clin Immunol

      Volume: 149 Pages: 1296-1308

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Phase II, Multicenter, Randomized, Placebo-Controlled Study of Benralizumab, a Humanized Anti-IL-5R Alpha Monoclonal Antibody, in Patients With Eosinophilic Chronic Rhinosinusitis.2021

    • Author(s)
      Takabayashi T, Asaka D, Okamoto Y, et al.
    • Journal Title

      Am J Rhinol Allergy.

      Volume: 35(6) Issue: 6 Pages: 861-870

    • DOI

      10.1177/19458924211009429

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of current staging systems for sinonalasal inverted papilloma.2021

    • Author(s)
      Nakayama T, Haruna S et al
    • Journal Title

      Am J Rhinol Allergy

      Volume: 35 Issue: 1 Pages: 64-71

    • DOI

      10.1177/1945892420933178

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Postoperative evaluation of olfactory dysfunction in eosinophilic chronic sinusitis-comparison of histopathological and clinical findings.2019

    • Author(s)
      Kashiwagi T, Tsunemi Y, Akutsu M, Nakajima I, Haruna S.
    • Journal Title

      Acta Otolaryngol

      Volume: 139 Issue: 1 Pages: 881-889

    • DOI

      10.1016/j.anl.2019.08.007

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Postoperative evaluation of olfactory dysfunction in eosinophilic CRS-Comparison of histopathological and clinical findings-2023

    • Author(s)
      Haruna s
    • Organizer
      Korean Rhinologic society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Postoperative evaluation of olfactory dysfunction in eosinophilic CRS-Comparison of histopathological and clinical findings-2023

    • Author(s)
      Haruna s
    • Organizer
      Taiwan Rhinologic Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited

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

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