• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of treatment for multiple sclerosis based on rice consumption, a newly identified environmental risk factor

Research Project

Project/Area Number 19K07995
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionKyushu University

Principal Investigator

Watanabe Mitsuru  九州大学, 大学病院, 助教 (30748009)

Co-Investigator(Kenkyū-buntansha) 山崎 亮  九州大学, 医学研究院, 准教授 (10467946)
磯部 紀子  九州大学, 医学研究院, 教授 (60452752)
松下 拓也  九州大学, 大学病院, 講師 (00533001)
中村 優理  九州大学, 医学研究院, 共同研究員 (40822375)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords多発性硬化症 / 環境因子 / コメ摂取 / 喫煙 / 免疫細胞解析 / 疾患修飾薬 / 免疫細胞 / 食事 / 米 / 腸内細菌叢
Outline of Research at the Start

多発性硬化症(MS)は原因不明の炎症性脱髄性中枢神経疾患である。疾患修飾薬によりある程度の再発予防が可能になったものの、未だ根治はできず、詳しい病態解明が望まれている。私たちはこれまでMS発症に関連する環境要因を調査する研究を行ってきた。食生活に関するアンケート調査により、日本人MS患者では米の摂取量が少ないことを見出し、米食の減少がMSの発症を増やす環境リスクである可能性を見出した。そこで本研究では、米食による免疫機能の変化、MS発症を予防する機序を、患者を対象とした臨床研究と実験モデルマウスを用いた動物実験により明らかにし、新たな視点からのMSの病態解明、新規治療法の開発を目指す。

Outline of Final Research Achievements

The relationship between amount of rice consumption and immunophenotypic feature in blood was not observed in patients with multiple sclerosis (MS). However, comparing MS patients with 2 or more relapses and those with 0-1 relapse during 4 years, the former group had less amount of rice consumption than the other. This data suggests the amount of rice consumption relates to the disease activity of MS.
In the flowcytometry analysis, we also found that some subtypes of gamma-delta T cells can be markers of treatment responder in patients with oral disease modifying drugs.
Regarding smoking, one of environmental MS risk factors, MS patients under oral disease modifying treatment with smoking habits experienced relapses earlier than those without smoking. This suggests that smoking can suppress the efficacy of disease modifying drugs.

Academic Significance and Societal Importance of the Research Achievements

多発性硬化症患者におけるコメの摂取が、発症のリスクになっているのみでなく、再発のリスク、つまりは疾患活動性に関与しうることが示された。このことで、患者の診療における再発予防戦略に役立つ可能性がある。
また末梢血中の免疫細胞解析において、γδ型T細胞の一部の分画が経口疾患修飾薬使用下の多発性硬化症患者の治療効果の指標になりうることが示されたことで、患者に適切な薬剤を選択する際の参考になる。
さらに他の多発性硬化症のリスク因子である喫煙が、経口疾患修飾薬の有用性も低下させることが明らかとなったことで、禁煙指導の重要性が示され、それに伴い患者の予後が改善することが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2022 2021 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (12 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Environmental risk factors for multiple sclerosis in Japanese people2020

    • Author(s)
      Sakoda A, Matsushita T, Nakamura Y, Watanabe M, Shinoda K, Masaki K, Isobe N, Yamasaki R, Kira J.
    • Journal Title

      Multiple Sclerosis and Related Disorders

      Volume: 38 Pages: 101872-101872

    • DOI

      10.1016/j.msard.2019.101872

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Dimethyl fumarate treatment showed unique change of γδ T cell subsets in multiple sclerosis patients2022

    • Author(s)
      渡邉充、松尾江梨子、福元尚子、田中栄蔵、眞﨑勝久、松下拓也、吉良潤一、磯部紀子
    • Organizer
      第63回日本神経学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Association between HLA subtype and efficacy of glatiramer acetate in Japanese multiple sclerosis2022

    • Author(s)
      田中栄蔵、渡邉充、福元尚子、眞﨑勝久、松下拓也、磯部紀子
    • Organizer
      第63回日本神経学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 再発寛解型多発性硬化症におけるfingolimod内服下での喫煙と再発の検討2021

    • Author(s)
      田中栄蔵、渡邉充、松下拓也、吉良潤一、磯部紀子
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Association between smoking and relapse in patients with relapsing-remitting multiple sclerosis under fingolimod treatment2021

    • Author(s)
      Eizo Tanaka, Mitsuru Watanabe, Takuya Matsushita, Noriko Isobe
    • Organizer
      WCN 2021 (XXV World Congress of Neurology)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Smoking is a risk factor of relapse in patients with relapsing-remitting multiple sclerosis under fingolimod treatment2021

    • Author(s)
      Eizo Tanaka, Mitsuru Watanabe, Katsuhisa Masaki, Takuya Matsushita, Noriko Isobe
    • Organizer
      ECTRIMS 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Smoking effect on disease activity in relapsing-remitting multiple sclerosis patients treated with fingolimod or dimethyl fumarate2021

    • Author(s)
      Eizo Tanaka, Mitsuru Watanabe, Shoko Fukumoto, Katsuhisa Masaki, Takuya Matsushita, Noriko Isobe
    • Organizer
      PACTRIMS 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Protective effect of rice on multiple sclerosis susceptibility via CD4+ effector T cell reduction2020

    • Author(s)
      Sakoda A, Matsushita T, Watanabe M, Maimaitijiang G, Shinoda K, Isobe N, Kira J.
    • Organizer
      第61回日本神経学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 日本人における視神経脊髄炎の環境要因についての検討2019

    • Author(s)
      迫田礼子、松下拓也、中村優理、渡邉充、磯部紀子、吉良潤一
    • Organizer
      第31回日本神経免疫学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 米食の予防効果は多発性硬化症でみられるが視神経脊髄炎関連疾患ではみられない2019

    • Author(s)
      迫田礼子、松下拓也、中村優理、渡邉充、磯部紀子、吉良潤一
    • Organizer
      第37回日本神経治療学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 日本人多発性硬化症における疾患修飾薬関連進行性多巣性白質脳症発症リスクにHLAアリル多型が関与する2019

    • Author(s)
      渡邉充、中村優理、磯部紀子、田中正美、松下拓也、河野祐治、迫田礼子、林史恵、吉良潤一
    • Organizer
      第31回日本神経免疫学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Effect of HLA class II alleles on JCV infection in Japanese patients with multiple sclerosis2019

    • Author(s)
      Watanabe M, Nakamura Y, Isobe N, Tanaka M, Sakoda A, Hayashi F, Matsushita T, Kira J.
    • Organizer
      35th Congress of ECTRIMS
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Environmental factors for neuromyelitis optica spectrum disorders (NMOSD) in Japanese population.2019

    • Author(s)
      Sakoda A, Matsushita T, Nakamura Y, Watanabe M, Shinoda K, Isobe N, Kira J.
    • Organizer
      60th Annual Meeting of the Japanese Society of Neurology
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi