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Elucidation of the Molecular Mechanism of a Novel Cancer-Associated Bone Lesion Factor, NEO1, and Development of a Diagnostic Method as a Biomarker

Research Project

Project/Area Number 23K19694
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0907:Oral science and related fields
Research InstitutionThe University of Tokushima

Principal Investigator

NAKAUE Emiko  徳島大学, 大学院医歯薬学研究部(歯学域), 助教 (10980170)

Project Period (FY) 2023-08-31 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2024: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsneogenin1 / NEO1 / BMP2 / TAK1 / TACE / myeloma / osteoblast / cancer
Outline of Research at the Start

本研究では、腫瘍細胞のうち口腔・顎顔面にも顕著な骨破壊を引き起こす骨髄腫細胞からの分泌タンパクの網羅的解析により同定された新規骨形成抑制因子Neogenin1(NEO1)の骨芽細胞分化抑制機序および腫瘍細胞からの産生機序を中心に解明し、骨病変形成の病態解明および新規治療法への開発へとつなげる。さらに、患者血清中のNEO1濃度を計測し、骨病変との関連を臨床病理学的に解析し、バイオマーカーとしての可能性を検討する。

Outline of Final Research Achievements

Bone loss caused by cancer-induced bone metastasis and bone invasion is progressive, often leading to skeletal-related events such as bone pain and pathological fractures. Among these, bone pain is the most significant contributor to the deterioration of patients’ quality of life (QoL). Therefore, identifying molecules involved in bone pain and developing novel therapeutic strategies to suppress tumor-associated nociceptive pain through new mechanisms are urgent issues. We identified Neogenin1 (NEO1) as a novel molecule associated with bone pain. However, the function of shed extracellular NEO1 remains unclear. Our investigation revealed that NEO1 derived from myeloma cells suppresses osteoblast differentiation and exacerbates the formation of osteolytic lesions. Furthermore, our results suggest that extracellular NEO1 may also contribute to the manifestation of bone pain.

Academic Significance and Societal Importance of the Research Achievements

本研究により、骨髄腫細胞由来のNeogenin1(NEO1)がBMP2の囮受容体として骨芽細胞分化を抑制し、骨病変形成および骨痛の発現に関与することが示唆された。さらに、NEO1の発現がTAK1により誘導される分子機序を明らかにした。これらの成果は、既存薬の副作用回避や、より選択的かつ安全性の高い新規骨病変抑制法の開発に資する知見であるとともに、細胞外NEO1を用いた低侵襲かつ信頼性の高い血清バイオマーカーの確立にもつながる可能性があり、がん患者の予後およびQOLの改善に大きく貢献する学術的および社会的意義を有する。

Report

(3 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • Research Products

    (3 results)

All 2023

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (1 results)

  • [Journal Article] Mechanisms of preferential bone formation in myeloma bone lesions by proteasome inhibitors2023

    • Author(s)
      Nakaue Emiko、Teramachi Jumpei、Tenshin Hirofumi、Hiasa Masahiro、Harada Takeshi、Oda Asuka、Inoue Yusuke、Shimizu So、Higa Yoshiki、Sogabe Kimiko、Oura Masahiro、Hara Tomoyo、Sumitani Ryohei、Maruhashi Tomoko、Yamagami Hiroki、Endo Itsuro、Tanaka Eiji、Abe Masahiro
    • Journal Title

      International Journal of Hematology

      Volume: - Issue: 1 Pages: 88-98

    • DOI

      10.1007/s12185-023-03601-2

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Xanthine Oxidase Inhibitor Febuxostat Suppresses Adipogenesis and Activates Nrf22023

    • Author(s)
      Higa Y, Hiasa M, Tenshin H, Nakaue E, Tanaka M, Kim S, Nakagawa M, Shimizu S, Tanimoto K, Teramachi J, Harada T, Oda A, Oura M, Sogabe K, Hara T, Sumitani R, Maruhashi T, Yamagami H, Endo I, Matsumoto T, Tanaka E, Abe M
    • Journal Title

      Antioxidants

      Volume: 12 Issue: 1 Pages: 133-133

    • DOI

      10.3390/antiox12010133

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Mechanisms of preferential bone formation in myeloma bone lesions by proteasome inhibitors2023

    • Author(s)
      中上 絵美子
    • Organizer
      第82回日本矯正歯科学会
    • Related Report
      2023 Research-status Report

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Published: 2023-09-11   Modified: 2026-01-16  

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