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Topdown signaling from the motor cortex for pain inhibition

Research Project

Project/Area Number 16K11454
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Morphological basic dentistry
Research InstitutionKagoshima University

Principal Investigator

KURAMOTO Eriko  鹿児島大学, 医歯学域歯学系, 助教 (60467470)

Co-Investigator(Kenkyū-buntansha) 桑木 共之  鹿児島大学, 医歯学域医学系, 教授 (80205260)
齋藤 充  鹿児島大学, 医歯学域歯学系, 教授 (50347770)
柏谷 英樹  鹿児島大学, 医歯学域医学系, 講師 (70328376)
大野 幸  鹿児島大学, 医歯学域鹿児島大学病院, 助教 (00535693)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords三叉神経痛 / 大脳皮質 / 運動野 / 帯状野 / 中脳水道周囲灰白質 / 前頭眼野 / 視床 内側下核 / 大脳皮質運動野 / 痛覚抑制 / 三叉神経系 / 痛覚 / 前頭前野
Outline of Final Research Achievements

As a treatment for trigeminal neuralgia, it is recently reported that electrical stimulation of the motor cortical area is effective. We aimed to elucidate anatomically and behaviorally the mechanism of pain suppression by electrical stimulation of the motor cortex. Tracing experiments with viral vectors revealed that axons from the motor cortex were mostly distributed in the sensory, cingulate, and orbitofrontal cortices, but not in the periaqueductal gray. Therefore, it was suggested that the pathway of motor cortex → cingulate cortex → periaqueductal gray → locus coeruleus exerts a pain suppressive function. In addition, since the orbitofrontal cortical area strongly projects to the submedial thalamic nucleus, which is related to pain suppression, it is suggested that the pathway of motor area → orbitofrontal area → submedial thalamic nucleus may also have an effect on pain suppression.

Academic Significance and Societal Importance of the Research Achievements

三叉神経痛の中には、薬物や外科的療法により治療できない症例が少なからず存在する。こうした難治性の三叉神経痛の治療法として、大脳皮質 運動野の電気刺激療法がおこなわれて、一定の治療効果が得られている。しかしながら、運動野を刺激することで、なぜ、痛覚抑制の効果が得られるのか、そのメカニズムはほとんど明らかにされていない。
このメカニズムの詳細を明らかにすることができれば、より効果的な治療方法への改善や、より効果的で侵襲性の低い治療法の開発の糸口にすることが可能である。三叉神経痛だけでなく、難治性の神経陰性疼痛の治療へ、広く適応できる可能性が高く、社会的意義が大きい。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Int'l Joint Research] Lab of Thalamus Research/Institute of Experimental Medicine/Budapest(ハンガリー)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Method for Labeling and Reconstruction of Single Neurons Using Sindbis Virus Vectors2019

    • Author(s)
      Eriko Kuramoto
    • Journal Title

      Journal of Chemical Neuroanatomy

      Volume: 100 Pages: 101648-101648

    • DOI

      10.1016/j.jchemneu.2019.05.002

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 三叉神経節の神経-免疫系システム2019

    • Author(s)
      後藤哲哉、千堂良造、岩井治樹、倉本恵梨子、山中淳之
    • Journal Title

      別冊BIO Clinica

      Volume: 8 Pages: 137-142

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Inhibition of GluR Current in Microvilli of Sensory Neurons via Na(+)-Microdomain Coupling among GluR, HCN channel and Na(+)/K(+) Pump.2018

    • Author(s)
      Kawasaki Y, Saito M, Won J, Bae JY, Sato H, Toyoda H, Kuramoto E, Kogo M, Tanaka T, Kaneko T, Oh SB, Bae YC, Kang Y.
    • Journal Title

      Front. Cell. Neurosci.

      Volume: 印刷中 Pages: 113-113

    • DOI

      10.3389/fncel.2018.00113

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dorsal and ventral parts of thalamic nucleus submedius project to different areas of rat orbitofrontal cortex: A single neuron-tracing study using virus vectors.2017

    • Author(s)
      Kuramoto E, Iwai H, Yamanaka A, Ohno S, Seki H, Tanaka YR, Furuta T, Hioki H, Goto T
    • Journal Title

      J Comp Neurol.

      Volume: 525 Issue: 18 Pages: 3821-3839

    • DOI

      10.1002/cne.24306

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A distinct functional distribution of α and γ motoneurons in the rat trigeminal motor nucleus.2017

    • Author(s)
      Morita-Isogai, Y., Sato, H., Saito, M., Kuramoto, E., Yin, D., Kaneko, T., Yamashiro, T., Takada, K., Oh, S.B., Toyoda, H., & Kang, Y.
    • Journal Title

      Brain Structure and Function

      Volume: - Issue: 7 Pages: 1-9

    • DOI

      10.1007/s00429-017-1400-8

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Distinct functional and morphological properties of the frontal and parietal layer 5 corticothalamic pathways.2020

    • Author(s)
      Eriko Kuramoto, Hajnelka Bokor, Nora Hadinger, Emilia Bosz, Boglarka Toth, Csaba David, Gergely Komlosi, Gordon Shepherd, Naoki Yamawaki, Tetsuya Goto, Laszlo Acsady.
    • Organizer
      Gordon Research Conference, "Thalamocortical Interaction"
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アルツハイマー病モデルマウスの三叉神経核で認められた神経病理と、その咀嚼機能に対する影響について2019

    • Author(s)
      倉本恵梨子、齋藤充、八木孝和、Ashis Dhar, 岩井治樹、山中淳之、松本信英、原博満、後藤哲哉
    • Organizer
      第13回 三叉神経領域の感覚―運動統合機構研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Local connections of excitatory neurons to parvalbumin-containing interneurons in motor-associated cortical areas of mice2018

    • Author(s)
      Kuramoto E
    • Organizer
      Gordon Research Conference "Thalamocortical interaction"
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 視床-前頭皮質投射の神経回路:ウイルスベクターを用いた単一細胞標識法による研究2017

    • Author(s)
      倉本恵梨子
    • Organizer
      第122回日本解剖学会総会全国学術集会
    • Place of Presentation
      長崎大学坂本キャンパス(長崎県長崎市)
    • Year and Date
      2017-03-29
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Dorsal and ventral part of the rat thalamic submedial nucleus provide two independent inputs to different areas of orbital cortex2017

    • Author(s)
      倉本恵梨子、岩井治樹、山中淳之、大野幸、千堂良造、小柳宏太郎、豊留宗一郎、古田貴寛、日置寛之、後藤哲哉
    • Organizer
      第122回日本解剖学会総会全国学術集会
    • Place of Presentation
      長崎大学坂本キャンパス(長崎県長崎市)
    • Year and Date
      2017-03-28
    • Related Report
      2016 Research-status Report
  • [Presentation] Local connections of excitatory neurons to parvalbumin-containing interneurons in motor-associated cortical areas of mice2017

    • Author(s)
      Kuramoto E, Hioki H, Tanaka YR, Iwai H, Yamanaka A, Goto T, Kaneko T
    • Organizer
      FENS regional meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dorsal and ventral parts of the thalamic nucleus submedius provide two independent inputs to different areas of the rat orbitofrontal cortex: A single neuron-tracing study using virus vectors2016

    • Author(s)
      E. KURAMOTO, H. IWAI, A. YAMANAKA, S. OHNO, T. FURUTA, H. HIOKI, T. GOTO
    • Organizer
      46th Annual Meeting of the Society for Neuroscience
    • Place of Presentation
      San Diego(USA)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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