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Exploration for personalized adjuvant therapy to lung cancer patients using liquid biopsy

Research Project

Project/Area Number 22K20788
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0901:Oncology and related fields
Research InstitutionKanazawa University

Principal Investigator

Koba Hayato  金沢大学, 医薬保健学総合研究科, 特任助教 (80967886)

Project Period (FY) 2022-08-31 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsExracellular vesicles / 肺癌 / Liquid biopsy / extracellular vesicles / lung cancer / liquid biopsy / cell free tumor DNA / EGFR mutation / adjuvant chemotherapy / 術後化学療法
Outline of Research at the Start

早期肺癌では外科的切除で根治が望まれるが、残念ながら再発することがあり新規のリスク評価法・治療標的を探索することが重要である。
血中遊離DNA(cfDNA)やmicro RNA(miRNA)を用いて癌の遺伝子異常を検出する方法が発展している。我々は以前に、診断時の腫瘍組織で認められずcfDNAで検出された遺伝子変異が、経過で出現した転移巣で検出されることを報告した。本研究では、術前のcfDNAとmiRNAを解析し、再発時期との関連や手術検体から得られた組織由来のRNA発現パターンとの関連を検討する。本解析から新たなバイオマーカーの創出や治療標的を発見し、オーダーメイドの術後療法の確立を目指す。

Outline of Final Research Achievements

We analyzed cell free DNA (cfDNA) and extracellular vesicles (EVs) extracted from blood specimens collected before lung cancer surgery, examined their relationship with subsequent prognosis, and developed new biomarkers for predicting prognosis. The aim is to establish personalized postoperative treatments by creating and discovering therapeutic targets. cfDNA and EVs were extracted from blood samples of 285 patients before lung cancer surgery.
Among patients with EGFR mutation, it was found that the group in which the same gene mutation was detected in cfDNA had a significantly worse prognosis.
Furthermore, when examining the proteins in EVs, the group in which ZNFx was detected had a significantly better prognosis than the group in which ZNFx was not detected.

Academic Significance and Societal Importance of the Research Achievements

血中には癌由来の遺伝子変異やタンパク質が循環していることは以前から報告されていた。今回我々の検討では、肺癌の手術前に特定の遺伝子異常やタンパク質が認められる患者群で、生命予後が別れることが示された。肺癌の周術期の治療開発が盛んに行われているが、現時点では病期Stageによって治療を行うべきかどうかを決めている。我々が見出したこれらの因子によって、周術期の治療の判断材料になることが期待される。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (4 results)

All 2024 2023

All Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Pre-operative markers extracted from extracellular vesicles related with lung cancer relapse2024

    • Author(s)
      木場隼人
    • Organizer
      American Association for Cancer Research Annual Meeting 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Genomic and proteome analysis using preoperative cell free DNA and extracellular vesicles of lung cancer patients2023

    • Author(s)
      木場隼人
    • Organizer
      American Association for Cancer Research Annual Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Genomic and proteome analysis using preoperative cell free DNA and extracellular vesicles of lung cancer patients2023

    • Author(s)
      Hayato Koba
    • Organizer
      AACR annual meeting 2023
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Prognostic evaluation by using cfDNA in patients with resectable lung cancer2023

    • Author(s)
      Yuya Murase
    • Organizer
      日本臨床腫瘍学会 学術集会2023
    • Related Report
      2022 Research-status Report

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Published: 2022-09-01   Modified: 2025-01-30  

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