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Elucidation of antipruritic mechanism of analgesic adjuvant via substance P receptorr

Research Project

Project/Area Number 15K10564
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Anesthesiology
Research InstitutionJuntendo University

Principal Investigator

YAMAGUCHI KEISUKE  順天堂大学, 医学部, 教授 (10338410)

Co-Investigator(Kenkyū-buntansha) 長岡 功  順天堂大学, 医学(系)研究科(研究院), 教授 (60164399)
Research Collaborator WAKABAYASHI saiko  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords慢性掻痒 / サブスタンスP / 炎症 / サイトカイン / シグナル伝達 / 鎮痛補助薬 / ガバペンチノイド / 掻痒 / ガバペンチン / プレガバリン / サブスタンスP / NK1受容体 / MAPキナーゼ / サブスタンスP受容体 / サブスタンスP受容体
Outline of Final Research Achievements

Gabapentin (GBP) and pregabalin (PGB) exert antipruritic action on chronic itching with neuropathic or inflammatory conditions. In this study, we investigated the effects of GBP and PGB on substance P (SP)-induced activation of a human glioblastoma astrocytoma cell line U373 MG cell, which expresses the high levels of a functional high-affinity SP receptor and produces interleukin (IL)-6 and IL-8 in response to SP. The results indicated that GBP and PGB suppressed the SP-induced production of IL-6 and IL-8 in U373 MG cells. Furthermore, GBP and PGB inhibited the SP-induced phosphorylation of p38 MAPK and NF-kB, and nuclear translocation of NF-kB in U373 MG cells. Together, these observations suggest that GBP and PGB likely prevent the SP-induced IL-6 and IL-8 production by U373 MG cells via the inhibition of signaling molecules including p38 MAPK and NF-kB, thereby exhibiting antipruritic action.

Academic Significance and Societal Importance of the Research Achievements

帯状疱疹後掻痒を始めとした難治性掻痒が患者パフォーマンスに多大な影響を与え、QOL、学習効率、および労働生産性を著しく障害することが明らかにされている。適切な治療を提供することにより、それらを改善できる可能性があり,難治性掻痒の原因究明と安全な治療方法を確立することの社会的意義は非常に大きい。神経伝達物質サブスタンスP(以下SP)は、疼痛や炎症機構と強く関連している他、C線維のSP受容体(SPR)を介した直接的な掻痒のメディエーターとして中心的役割を果たしていることが注目されている。以上より、SPRを介したシグナル伝達系の解析が、難治性掻痒のメカニズム解明の鍵であることが考えられる。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (9 results)

All 2018 2017 2015

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (6 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] 【かゆみ 治療薬を使いこなす"知識"と"ノウハウ"】 この薬は"いつ""どの患者で""どう使う"? GABAアナログ2018

    • Author(s)
      山口敬介
    • Journal Title

      薬局

      Volume: 69 Pages: 2446-2452

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Ketamine suppresses the substance P-induced production of IL-6 and IL-8 by human U373MG glioblastoma/astrocytoma cells.2017

    • Author(s)
      Keisuke Yamaguchi, Isao Nagaoka
    • Journal Title

      Int J Mol Med

      Volume: 39 Issue: 3 Pages: 687-692

    • DOI

      10.3892/ijmm.2017.2875

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Anti-inflammatory actions of gabapentin and pregabalin on the substance P induced mitogen activated protein kinase activation in U373 MG human glioblastoma astrocytoma cells.2017

    • Author(s)
      Keisuke Yamaguchi
    • Journal Title

      Mol Med Rep.

      Volume: 16 Issue: 5 Pages: 6109-6115

    • DOI

      10.3892/mmr.2017.7368

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] The Role of Substance P in Pain Mechanisms2018

    • Author(s)
      Yamaguchi K
    • Organizer
      8th South Asian Regional Pain Societies (SARPS) Congress on Pain
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Yokukansan, Japanese Herbal Medicine, Suppresses the Substance P-induced Production of IL-6 and IL-8 in Human U373 MG Cells2018

    • Author(s)
      Yamaguchi K, Hamaoka S, Iseki M, Nagaoka I
    • Organizer
      17th World Congress on Pain, Boston
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Yokukansan, Japanese herbal medicine, suppresses the substance P-induced production of IL-6 and IL-8 by human U373MG glioblastoma/astrocytoma cells2017

    • Author(s)
      Keisuke Yamaguchi
    • Organizer
      2017 IARS annual meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Role of substance P in pain mechanism2017

    • Author(s)
      Keisuke Yamaguchi
    • Organizer
      8th South Asian Regional Pain Societies Congress on Pain
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 抑肝散がサブスタンスP受容体を介するMAPキナーゼシグナル伝達系に与える影響について2017

    • Author(s)
      山口 敬介
    • Organizer
      第39回日本疼痛学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Gabapentin Inhibits Substance P-Induced Mitogen-Activated Protein Kinases Activation2015

    • Author(s)
      Keisuke Yamaguchi
    • Organizer
      American Society of Anesthesiologists Annual Meeting
    • Place of Presentation
      San Diego
    • Year and Date
      2015-10-24
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2020-03-30  

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