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Study of the effect of sublingual immunotherapy with cedar pollen extract on cypress pollinosis

Research Project

Project/Area Number 18K09368
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Yonekura Syuji  千葉大学, 大学院医学研究院, 准教授 (20400939)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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)
Keywordsヒノキ花粉症 / スギ花粉症 / 舌下免疫療法
Outline of Final Research Achievements

Compared with the cases of drug therapy without sublingual immunotherapy (SLIT), the total nasal medication score was lower in the group who received SLIT in both the cedar pollen dispersal period and the cypress pollen dispersal period. When peripheral blood mononuclear cells extracted from blood samples before and after the pollen dispersal period were stimulated with cedar pollen antigen, the amount of type 2 cytokine production increased significantly in the SLIT group compared with the drug therapy group. Similarly, suppression of type 2 cytokines was observed when stimulated with cypress pollen antigen, but the degree of inhibition was less than when stimulated with cedar pollen. Although cedar pollen and cypress pollen have a common antigen, the results suggest the influence of antigens peculiar to cypress pollen such as Cha 0 3.

Academic Significance and Societal Importance of the Research Achievements

スギ花粉とヒノキ花粉は共通項抗原をもち、スギ花粉症症例の多くにヒノキ花粉症が合併していることが知られている。本研究ではスギ花粉エキスを用いた舌下免疫療法は、3年間の治療経過を観察した限りでは、概ね治療年数を重ねることで効果は増強することが示唆された。また、スギ花粉エキスを用いた舌下免疫療法は、スギ花粉症のみならず、ヒノキ花粉症にも一定の効果があることが示唆された。ただし、ヒノキ花粉飛散期に症状が増悪する症例も存在することや、ヒノキ抗原特異的免疫反応の結果を考慮すると、今後ヒノキ花粉をターゲットとした免疫療法の開発が望まれる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (12 results)

All 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Invited: 3 results)

  • [Journal Article] Investigating Japanese cedar pollen-induced allergic rhinitis and related terms using Google Trends.2020

    • Author(s)
      Iinuma T, Yonekura S, Sakurai D, Inaba Y, Kawasaki Y, Okamoto Y.
    • Journal Title

      Allergol Int.

      Volume: 69 Issue: 4 Pages: 616-618

    • DOI

      10.1016/j.alit.2020.03.006

    • NAID

      130007926242

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 【詳しく知りたい!舌下免疫療法】舌下免疫療法とバイオマーカー(解説/特集)2020

    • Author(s)
      米倉修二、飯沼智久
    • Journal Title

      ENTONI

      Volume: 250 Pages: 78-83

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Efficacy of Desloratadine and Levocetirizine in Patients with Cedar Pollen-Induced Allergic Rhinitis: A Randomized, Double-Blind Study.2019

    • Author(s)
      Yonekura S, Okamoto Y, Sakurai D, Iinuma T, Sakurai T, Yoneda R, Kurita J, Hanazawa T, Kawasaki Y.
    • Journal Title

      Int Arch Allergy Immunol.

      Volume: 180 Issue: 4 Pages: 274-283

    • DOI

      10.1159/000503065

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Treatment duration-dependent efficacy of Japanese cedar pollen sublingual immunotherapy: Evaluation of a phase II/III trial over three pollen dispersal seasons2019

    • Author(s)
      Yonekura S, Gotoh M, Kaneko S, Kanazawa K, Takeuji Y, Okubo K, Okamoto Y.
    • Journal Title

      Allergology International

      Volume: 68 Issue: 4 Pages: 494-505

    • DOI

      10.1016/j.alit.2019.05.002

    • NAID

      130007733095

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A VALIDATION STUDY OF THE IMPROVED PRODUCT FOR MEASURING JAPANESE CYPRESS POLLEN-SPECIFIC IgE (THERMO SCIENTIFIC<sup>™</sup> ImmunoCAP<sup>™</sup> ImmunoCAP JAPANESE CYPRESS POLLEN-SPECIFIC IgE)2018

    • Author(s)
      Yonekura S, Okamoto Y, Nakayama S.
    • Journal Title

      Japanese Journal of Allergology

      Volume: 67 Issue: 1 Pages: 67-71

    • DOI

      10.15036/arerugi.67.67

    • NAID

      130006386856

    • ISSN
      0021-4884, 1347-7935
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 舌下免疫療法の現状とこれから2020

    • Author(s)
      米倉修二
    • Organizer
      第59回日本鼻科学会総会・学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] シダキュアスギ花粉舌下錠の投与継続3年目の有効性及び安全性2019

    • Author(s)
      米倉修二
    • Organizer
      第68回日本アレルギー学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] アレルギー性鼻炎に対する舌下免疫療法の 実際と課題2019

    • Author(s)
      米倉修二
    • Organizer
      第56回日本小児アレルギー学会学術大会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] スギ花粉舌下錠及びダニ舌下錠の併用に関する安全性の検討(年齢層別解析)2019

    • Author(s)
      米倉修二
    • Organizer
      第56回日本小児アレルギー学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] シダキュア&reg;スギ花粉舌下錠の投与継続3年目の 有効性及び安全性の検討(年齢層別解析)2019

    • Author(s)
      米倉修二
    • Organizer
      第56回日本小児アレルギー学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Future challenges facing the popularization of sublingual immunotherapy2018

    • Author(s)
      米倉修二
    • Organizer
      第67回日本アレルギー学会学術大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 「免疫療法による花粉症治療の新しい展開を目指した研究」から2018

    • Author(s)
      米倉修二
    • Organizer
      第67回日本アレルギー学会学術大会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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