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Novel pain treatment strategy-Identification of novel analgesic peptide produced by cancer cells and elucidation of analgesic mechanism

Research Project

Project/Area Number 16H05234
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Pain science
Research InstitutionHiroshima Bunka Gakuen University

Principal Investigator

MORITA KATSUYA  広島文化学園大学, 看護学部, 教授 (10116684)

Co-Investigator(Kenkyū-buntansha) 本山 直世  広島大学, 医歯薬保健学研究科(歯), 助教 (70509661)
尾野 雅哉  国立研究開発法人国立がん研究センター, 研究所, 研究員 (00270900)
北山 友也  武庫川女子大学, 薬学部, 講師 (60363082)
土肥 敏博  広島文化学園大学, 看護学部, 教授 (00034182)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywords新規内因性鎮痛物質 / オピオイド受容体 / がん細胞培養上清 / 内因性鎮痛ペプチド / がん性疼痛 / 難治性疼痛 / μオピオイド受容体 / 鎮痛作用 / 下降性疼痛抑制系 / 代謝酵素 / がん細胞 / 新規鎮痛薬 / がん性疼痛治療薬 / 疼痛 / 薬理学 / 神経障害性疼痛
Outline of Final Research Achievements

We have found that a peptide-like analgesic substance is presence in the culture supernatant of cancer cells, and it has been clarified that this substance passes through the blood-brain barrier and acts on the MOP (μ) receptor to exhibit an analgesic effect. In this study, we aim at the development of novel analgesics from the identification and action mode of this analgesic substance. Identification of this analgesic peptide has not been successful yet. The substance systemic administration should evoke the strong analgesic effect in various pain models without showing the side effect of an opioid agonist. It was clarified that degradative enzymes exist in the living body. Identification of cancer cell-derived endogenous analgesic peptide and elucidation of mechanism of degradation and mechanism of analgesia are expected to be targets for new pain therapy and safe new analgesic development.

Academic Significance and Societal Importance of the Research Achievements

がん細胞の培養上清に液性鎮痛物質を見出し,当該物質は血液脳関門を通過しMOP(μ)受容体に作用して,下降性疼痛抑制系を賦活して,がん性疼痛や原因の異なる様々な疼痛に広く有効であることを見出した.当該物質はモルヒネ投与で問題となる耐性や依存の獲得及び便秘や呼吸抑制等の副作用は認められず新規鎮痛薬開発のシーズとなることが期待される.当該物質の同定と,代謝機構の解明,代謝阻害薬の開発から,新しい治療法と安全な新規鎮痛薬の開発をめざした,新たな治療戦略を構築する基盤を与えるものである.と同時にブロックバスターになる可能性も期待される.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (8 results)

All 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] 山間地域在住の高齢者との交流における看護学生の世代性及び対人援助力への影響2019

    • Author(s)
      讃井真理,今坂鈴江,風間栄子,岡田京子,前信由美,新川雅子,空本恵美,加藤重子,石川孝則,田村和恵,岩本由美,平岡正史,平光 修,森田克也,土肥敏博,佐々木秀美
    • Journal Title

      看護学統合研究

      Volume: 20(2) Pages: 10-24

    • NAID

      120006595074

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 看護師さんも知っておきたい話題の薬 -高齢者の睡眠障害と睡眠薬-2019

    • Author(s)
      土肥敏博,讃井真理,加藤重子,森田克也,今田真理子,加藤愛子,川本雪江,永石喜代子
    • Journal Title

      看護学統合研究

      Volume: 20(2) Pages: 44-57

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Journal Article] 平成28年度対人援助研究ブランディング看護・医療福祉部門 超高齢社会における高齢者・認知症者の健康及び世代継承性・社会貢献活動に関する看護カフェモデルの構築 第Ⅰ編-高齢者カフェの実態調査報告-2018

    • Author(s)
      河野保子,土肥敏博,加藤重子,讃井真理,森田克也,大塚 文,前信由美,岩本由美,田村和恵,佐藤敦子,今坂鈴江,風間栄子,岡田京子
    • Journal Title

      看護学統合研究

      Volume: 19(2) Pages: 1-13

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Health status of elderly people who participated in the self-health monitoring cafe conducted in the super aging areas in japan2019

    • Author(s)
      Sanai M, Shinkawa M, Ishikawa T, Hiraoka M, Morita K and Dohi T
    • Organizer
      International council of nurses congress 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Secreted extracellular miRNA, Let-7b-5p causes neuropathic pain via TLR7 in peripheral nerve injury2018

    • Author(s)
      Motoyama N, Morita K, Asano S, Jodo Y, Shigaki M, Sanai M and Dohi T
    • Organizer
      18th World congress of basic and clinical pharmacology; WPC2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of spinal LPCAT2, an inducible PAF synthesis enzyme on development and maintenance of painful peripheral neuropathy models in mice2018

    • Author(s)
      Morita K, Motoyama N, Kitayama T, Sanai M, Hashimoto M, Tsuchii A, Kato K, Kawai Y and Dohi T
    • Organizer
      18th World congress of basic and clinical pharmacology; WPC2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 介護予防:運動器機能の評価と唾液中神経栄養因子を指標とした効果的な介入の検討2018

    • Author(s)
      讃井 真理,新川 雅子,石川 孝則,山田 晃子,上林 聡子,岩本 由美,平岡 正史, 田村 和恵,前信 由美,平光 修,森田 克也,土肥 敏博
    • Organizer
      第8回日本認知症予防学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 血小板活性化因子(PAF)合成酵素LPCAT2阻害薬の難治性疼痛の発症と維持における役割 Role of spinal LPCAT2, an inducible PAF synthesis enzyme on development and maintenance on chronic pain.2018

    • Author(s)
      本山直世,森田克也,永安慎太郎,平田-土屋志津,進藤 智,西藤法子,柴 秀樹,土肥敏博
    • Organizer
      第149回日本歯科保存学会2018年度秋季学術大会
    • Related Report
      2018 Annual Research Report

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Published: 2016-04-21   Modified: 2025-01-30  

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