• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Identification of optimal fibroblasts for peripheral nerve regeneration

Research Project

Project/Area Number 20K18016
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionHokkaido University

Principal Investigator

Endo Takeshi  北海道大学, 大学病院, 助教 (50849148)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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線維芽細胞 / 軸索再生 / 末梢神経損傷 / 神経突起伸長 / 細胞治療
Outline of Research at the Start

末梢神経の再生は、神経軸索とシュワン細胞、炎症細胞等の複数種の細胞による高度な連携を伴うが、神経組織内に存在する線維芽細胞の役割はいまだ不明なままである。特に、末梢神経の最外層に位置して境界を形成するものと、神経組織内部で軸索に近接するものでは、神経が再生する過程で果たす役割は異なると考える。そこで、本研究では、末梢神経を構成する線維芽細胞にも領域に基づく多様性があり、軸索再生に至適な線維芽細胞があるという仮説を検証する。

Outline of Final Research Achievements

The current study investigated the capacity of fibroblasts (Fb) derived from peripheral nerves to stimulate the neurite outgrowth of DRG neurons and clarified their molecular characteristics. The Fb derived from epineurium (Fb-Epn) showed the greatest neurite outgrowth, followed by the Fb derived from parenchyma, indicating that nerve-derived Fb promote neurite outgrowth more effectively than skin-derived Fb. In in vivo, Fb were not closely associated with regenerating axons, indicating that only soluble factors from Fb are available to regenerating axons. A transcriptome analysis revealed that the molecular profiles of these Fb were distinctly different and that the gene expression profiles of soluble factors that promote axonal growth are unique to each Fb. These findings indicate that Fb are molecularly and functionally different depending on their localization in nerve tissue and that Fb-Epn might be involved more than was previously thought in axon regeneration after PNI.

Academic Significance and Societal Importance of the Research Achievements

本研究結果は、末梢神経由来Fbは皮膚由来Fbよりも神経突起伸長能に優れ、中でも神経上膜由来Fbが神経実質由来Fbよりも優れていること、Fbは神経組織内の局在によって分子的・機能的に異なること、神経上膜由来Fbが末梢神経損傷後の軸索再生に関与している可能性を示し、末梢神経内の局在の異なるFbは、異なる機能を有するという仮説を支持した。Fbは一般的に調製や増殖が容易であることから、細胞治療の材料として探索されてきたが、本研究の知見は、神経組織特異的Fbはこれらの細胞治療材料としての可能性を示している。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (13 results) (of which Int'l Joint Research: 3 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Peripheral nerve‐derived fibroblasts promote neurite outgrowth in adult dorsal root ganglion neurons more effectively than skin‐derived fibroblasts2023

    • Author(s)
      Hara Masato、Kadoya Ken、Endo Takeshi、Iwasaki Norimasa
    • Journal Title

      Experimental Physiology

      Volume: 108 Issue: 4 Pages: 621-635

    • DOI

      10.1113/ep090751

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neutrophils delay repair process in Wallerian degeneration by releasing NETs outside the parenchyma.2022

    • Author(s)
      Yamamoto Y, Kadoya K, Terkawi MA, Endo T, Konno K, Watanabe M, Ichihara S, Hara A, Kaneko K, Iwasaki N, Ishijima M.
    • Journal Title

      Life Sci Alliance

      Volume: 5 Issue: 10 Pages: e202201399-e202201399

    • DOI

      10.26508/lsa.202201399

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular and Regenerative Characterization of Repair and Non-repair Schwann Cells2022

    • Author(s)
      Suzuki Tomoaki、Kadoya Ken、Endo Takeshi、Iwasaki Norimasa
    • Journal Title

      Cellular and Molecular Neurobiology

      Volume: - Issue: 5 Pages: 2165-2178

    • DOI

      10.1007/s10571-022-01295-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mature but not developing Schwann cells promote axon regeneration after peripheral nerve injury2022

    • Author(s)
      Endo T, Kadoya K, Suzuki T, Suzuki Y, Terkawi MA, Kawamura D, Iwasaki N
    • Journal Title

      npj Regenerative Medicine

      Volume: 7 Issue: 1

    • DOI

      10.1038/s41536-022-00205-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 神経上膜による末梢神経損傷部の修復機構:PDGFRα陽性線維芽細胞が分泌するCHRDL1を介した血管新生促進2022

    • Author(s)
      原健人、角家健、遠藤健、岩崎倫政
    • Organizer
      第41回日本運動器移植・再生医学研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] PDGFRα expressing fibloblasts in epineurium promote the repair of the lesion site after peripheral nerve injury by enchancing endothelial cell migration via CHRDL1 secretion2022

    • Author(s)
      Hara M, Kadoya K, Endo T, Iwasaki N
    • Organizer
      6th International Symposium on Peripheral Nerve Regeneration
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PDGFRα expressing fibloblasts in epineurium promote the repair of the lesion site after peripheral nerve injury by enchancing endothelial cell migration via CHRDL1 secretion2022

    • Author(s)
      Hara M, Kadoya K, Endo T, Iwasaki N
    • Organizer
      Society of Neuroscience
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 末梢神経特異的線維芽細胞の神経突起伸長効果に関する検討2021

    • Author(s)
      原健人、角家健、鈴木智亮、松居祐樹、山本康弘、遠藤健、岩崎倫政
    • Organizer
      第140回北海道整形災害外科学会
    • Related Report
      2021 Research-status Report
  • [Presentation] 末梢神経特異的線維芽細胞の神経突起伸長効果に関する検討2021

    • Author(s)
      原健人、角家健、鈴木智亮、松居祐樹、山本康弘、遠藤健、岩崎倫政
    • Organizer
      第36回日本整形外科学会基礎学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] M2マクロファージはuPAを介して末梢神経損傷後の軸索再生を制御する2021

    • Author(s)
      松居祐樹、角家健、永野裕介、遠藤健、原健人、松前元、Alaa Terkawi、岩崎倫政
    • Organizer
      第64回日本手外科学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] M2マクロファージはuPAを介して末梢神経損傷後の軸索再生を制御する2021

    • Author(s)
      松居祐樹、角家健、永野裕介、遠藤健、原健人、松前元、Alaa Terkawi、岩崎倫政
    • Organizer
      第94回日本整形外科学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新規軸索再生因子GFRα1の末梢神経再生効果とその分子機構2021

    • Author(s)
      鈴木智亮、角家健、遠藤健、山崎美和子、渡辺雅彦、岩崎倫政
    • Organizer
      第140回北海道整形災害外科学会
    • Related Report
      2021 Research-status Report
  • [Presentation] GFRα1のNCAM、Integrin複合体を介した末梢神経軸索再生促進効果2021

    • Author(s)
      鈴木智亮、角家健、遠藤健、山崎美和子、渡辺雅彦、岩崎倫政
    • Organizer
      第32回日本末梢神経学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 新規軸索再生因子GFRα1の 末梢神経再生効果とその分子機構2021

    • Author(s)
      鈴木智亮、角家健、遠藤健、山崎美和子、渡辺雅彦、岩崎倫政
    • Organizer
      第36回日本整形外科学会基礎学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Development of High-throughput assay to screen potential drugs to protect blood-brain spinal cord barrier identifies Berberine as neuroprotection drug for spinal cord injury2020

    • Author(s)
      Suzuki Y, Kadoya K, Endo T, Matsui Y, Rufei Y, Asano T, Maenaka K, Nakagawa S, Iwasaki N.
    • Organizer
      The 59th International Spinal Cord Society Annual Scientific Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] M2マクロファージによる末梢神経軸索再生の制御2020

    • Author(s)
      松居祐樹、角家健、永野裕介、遠藤健、原健人、松前元、Alaa Terkawi、岩崎倫政
    • Organizer
      第31回日本末梢神経学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] M2マクロファージによる末梢神経軸索再生の制御2020

    • Author(s)
      松居祐樹、角家健、永野裕介、遠藤健、原健人、松前元、Alaa Terkawi、岩崎倫政
    • Organizer
      第35回日本整形外科学会基礎学術集会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] GFRα1を含む神経突起伸長促進剤及び神経再生誘導用医療材料2020

    • Inventor(s)
      角家健、鈴木智亮、遠藤健
    • Industrial Property Rights Holder
      角家健、鈴木智亮、遠藤健
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi