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Elucidation of oxaliplatin-induced peripheral neuropathy focusing on peripheral blood flow / peripheral temperature regulation mechanism

Research Project

Project/Area Number 20K22706
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0801:Pharmaceutical sciences and related fields
Research InstitutionKyoto University

Principal Investigator

Ogihara Takashi  京都大学, 薬学研究科, 特定助教 (00883612)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsオキサリプラチン / 末梢神経障害 / 末梢血流障害 / 疼痛モデル / 末梢温調節機構 / 感覚異常 / 血管拡張薬
Outline of Research at the Start

白金系抗がん剤であるオキサリプラチン(L-OHP)は副作用として高頻度に末梢神経障害(chemotherapy induced peripheral neuropathy : CIPN)を発現する。このCIPNは有効性の高い予防/治療法がなくアンメットニーズは高い。これまで、末梢の血流障害が末梢神経障害の進行に寄与し、血管拡張作用持つホスホジエステラーゼ(PDE)阻害薬が予防/治療候補薬となることを見出してきた。本研究では、L-OHPによる末梢血流障害の発生機序や、末梢神経と末梢血管との相互機能連関を明らかにするとともに、得られた結果を臨床に還元するトランスレーショナルリサーチを目指す。

Outline of Final Research Achievements

Oxaliplatin (L-OHP), a platinum-based chemotherapeutic drug used as first line chemotherapy, induces peripheral neuropathy. So far, it has been clarified that peripheral blood flow dysfunction induced by L-OHP is involved in the development of peripheral neuropathy. In this study, we focused on the functional relationship between sensory nerves and blood vessels, and clarified that L-OHP causes abnormalities in sensory nerve vascular responses. Our results suggest that L-OHP not only directly damages peripheral nerves, but also causes abnormalities in vascular responsiveness due to sensory nerves, which leads to decreased peripheral blood flow and exacerbation of peripheral neuropathy. It is suggested that abnormalities in the peripheral sensory nerve-vascular relationship are involved in peripheral neuropathy.

Academic Significance and Societal Importance of the Research Achievements

がん化学療法で用いられる抗がん剤は、様々な副作用が出現するが、なかでも末梢神経障害は、比較的多くの患者が経験するにもかかわらず、対応が遅れている副作用の1つである。末梢神経障害は、しびれ、感覚障害、痛みなどの感覚異常が生じ、患者の日常生活動作や生活の質を低下させる。さらには、重症化すれば、抗がん剤の減量や休薬を余儀なくさせ、がん治療成績に影響を与えることもあるが、その詳細な機序は不明な点が多い。今回得られた研究成果は末梢神経障害の発症機序の一部を解明したものであり、新たな予防/治療法の開発へとつながるものである。

Report

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

    (2 results)

All 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results)

  • [Journal Article] Cilostazol is an effective causal therapy for preventing paclitaxel-induced peripheral neuropathy by suppression of Schwann cell dedifferentiation2021

    • Author(s)
      Koyanagi Madoka、Imai Satoshi、Iwamitsu Yuki、Matsumoto Mayuna、Saigo Mamiko、Moriya Akari、Ogihara Takashi、Nakazato Yui、Yonezawa Atsushi、Nakagawa Shunsaku、Nakagawa Takayuki、Matsubara Kazuo
    • Journal Title

      Neuropharmacology

      Volume: 188 Pages: 108514-108514

    • DOI

      10.1016/j.neuropharm.2021.108514

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pronociceptive Roles of Schwann Cell?Derived Galectin-3 in Taxane-Induced Peripheral Neuropathy2021

    • Author(s)
      Koyanagi Madoka、Imai Satoshi、Matsumoto Mayuna、Iguma Yoko、Kawaguchi-Sakita Nobuko、Kotake Takeshi、Iwamitsu Yuki、Ntogwa Mpumelelo、Hiraiwa Ren、Nagayasu Kazuki、Saigo Mamiko、Ogihara Takashi、Yonezawa Atsushi、Omura Tomohiro、Nakagawa Shunsaku、Nakagawa Takayuki、Matsubara Kazuo
    • Journal Title

      Cancer Research

      Volume: 81 Issue: 8 Pages: 2207-2219

    • DOI

      10.1158/0008-5472.can-20-2799

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2020-09-29   Modified: 2023-01-30  

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