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The study of the interaction between the macrophages and the brain under the chronic postsurgical pain condition

Research Project

Project/Area Number 17K11535
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plastic surgery
Research InstitutionUniversity of Fukui

Principal Investigator

Nakai Kunihiro  福井大学, 学術研究院医学系部門(附属病院部), 准教授 (80362705)

Co-Investigator(Kenkyū-buntansha) 久保 盾貴  大阪大学, 医学系研究科, 教授 (00362707)
中江 文  大阪大学, 生命機能研究科, 特任教授(常勤) (60379170)
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: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords術後遷延性疼痛 / マクロファージ / MRI / 疼痛 / 動物モデル / カンナビノイド受容体 / オリゴデンドロサイト / 外科 / 再建外科学
Outline of Final Research Achievements

MRI combined with administration of super-paramagnetic iron oxide revealed no changes of the macrophage migration into the brain both in the chronic postsurgical pain mouse model and in the lipopolysaccharide-administered mouse model.
Mice deficient in CCR2 showed attenuation of the pain-related behavior in the chronic postsurgical pain model at 4 weeks postoperatively as compared to wild type mice. Administration of the CCR2 receptor inhibitor suppressed the pain-related behavior of the chronic postsurgical pain mouse model at 4 weeks postoperatively.

Academic Significance and Societal Importance of the Research Achievements

術後遷延性疼痛の発端は手術直後の組織損傷と炎症であることは明らかである。手術に伴う組織損傷の修復では免疫細胞の中でもマクロファージがその中心的な役割を果たす。しかし、術後遷延性疼痛においてマクロファージがどのように関与するかは明らかでなかった。術後遷延性疼痛におけるマクロファージの関与を解明することは術後遷延性疼痛の予防及び治療につながり、学術的意義及び社会的意義は大きいと考えられる。

Report

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

    (5 results)

All 2019 2018

All Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Possible involvement of spinal endocannabinoids in a rat model of trigeminal neuropathic pain2019

    • Author(s)
      Kunihiro Nakai, Aya Nakae, Yoshiki Minegishi, Ryotaro Urabe, Makoto Miyamae, Toshio Yanagida, Ko Hosokawa, Tateki Kubo
    • Organizer
      11th Congress of the European pain federation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The role of spinal endocannabinoids in a rat model of oro-facial neuropathic pain2019

    • Author(s)
      Kunihiro Nakai, Aya Nakae, Yoshiki Minegishi, Ryotaro Urabe, Makoto Miyamae, Toshio Yanagida, Ko Hosokawa, Tateki Kubo
    • Organizer
      Neuroscience 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ラット神経障害性顔面遷延性疼痛モデルにおける脊髄での内因性カンナビノイドの関与2019

    • Author(s)
      中井國博、中江文、峯岸芳樹、浦邊亮太朗、宮前誠、細川亙、久保盾貴
    • Organizer
      第28回形成外科学会基礎学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Possible involvement of spinal cannabinoid receptors in trigeminal nerve injury-induced mechanical hypersenstivity of rats2018

    • Author(s)
      K.Nakai, A.Nakae, Y.Minegishi, R.Urabe, M.Miyamae, T.Kubo, K.Hosokawa
    • Organizer
      Neuroscience 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ラット神経障害性顔面遷延性疼痛モデルにおける脊髄カンナビノイド受容体の関与2018

    • Author(s)
      中井國博、中江文、久保盾貴、峯岸芳樹、浦邊 亮太朗、宮前 誠、細川亙
    • Organizer
      第27回日本形成外科学会基礎学術集会
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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