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Utility of blood tumor mutation burden as a new biomarker in the field of gynecological cancer

Research Project

Project/Area Number 19K18677
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56040:Obstetrics and gynecology-related
Research InstitutionWakayama Medical University

Principal Investigator

Noguchi Tomoko  和歌山県立医科大学, 医学部, 学内助教 (80750900)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsリキッドバイオプシー / 婦人科癌 / bTMB / ctDNA / Liquid biopsy / liquid biopsy / 卵巣癌 / 子宮体癌 / 子宮頸癌
Outline of Research at the Start

Liquid biopsyとは、血液検体を用いて遺伝子変異を検出でき、従来の腫瘍組織生検と比べて低侵襲でかつ頻回に採取でき、新たな治療予測因子としての研究が進められている。肺癌領域ではLiquid biopsyにより遺伝子変異数を測定するbTMB(blood tumor mutation burden)の報告があり、免疫療法の効果予測因子として期待されている。今回、bTMBを用いて、婦人科癌の治療における新規バイオマーカーとしての有用性について検討する。

Outline of Final Research Achievements

In the present study, we utilized CAPP-Seq, an ultrasensitive NGS-based liquid biopsy approach,for blood-derived ctDNA samples. We investigated comprehensive gene mutation profiling and bTMB in gynecological cancer utilizing plasma ctDNA. We examined the mutation profiles of plasma ctDNA samples obtained from 65 gynecological cancers by CAPP-seq, Among 65 cancers, 63(98%) harbored one or more non-synonymous somatic mutation. The most frequently altered genes were TP53 (35%), APC (32%), KRAS (19%). 10 cases of 45 ovarian cancers were treated with neoadjuvant chemotherapy (NAC), which included 6 NAC-sensitive cases and 4 NAC-resistant cases. bTMB was significantly decreased in NAC-sensitive cases after NAC. These findings suggest that bTMB may lead to the development of novel personalized treatment strategies in gynecological cancer

Academic Significance and Societal Importance of the Research Achievements

婦人科癌は他癌種に比べるとPrecision medicine研究が遅れている領域であり,これまでにctDNA-Liquid Biopsyによる関する研究はほとんどない.結果として新規分子標的薬・免疫チェックポイント阻害薬の臨床応用の遅れをもたらしており,進行婦人科癌の予後不良症例の治療選択肢が限られ,婦人科癌におけるPrecision medicine研究の推務となっている.本研究は新規Precision medicine治療の推進のために意義の大きな研究と考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (6 results)

  • [Journal Article] Comprehensive gene mutation profiling of circulating tumor DNA in ovarian cancer: Its pathological and prognostic impact2020

    • Author(s)
      Noguchi T, Iwahashi N, Sakai K, Matsuda K, Matsukawa H, Toujima S, Nishio K, Ino K
    • Journal Title

      Cancers (Basel)

      Volume: 12 Issue: 11 Pages: 3382-3382

    • DOI

      10.3390/cancers12113382

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in the gene mutation profiles of circulating tumor DNA detected using CAPP?Seq in neoadjuvant chemotherapy?treated advanced ovarian cancer2020

    • Author(s)
      Noguchi Tomoko、Sakai Kazuko、Iwahashi Naoyuki、Matsuda Kaho、Matsukawa Hitomi、Yahata Tamaki、Toujima Saori、Nishio Kazuto、Ino Kazuhiko
    • Journal Title

      Oncology Letters

      Volume: ー Pages: 2713-2720

    • DOI

      10.3892/ol.2020.11356

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Liquid biopsy-based comprehensive gene mutation profiling for gynecological cancer using CAncer Personalized Profiling by deep Sequencing2019

    • Author(s)
      Iwahashi Naoyuki、Sakai Kazuko、Noguchi Tomoko、Yahata Tamaki、Matsukawa Hitomi、Toujima Saori、Nishio Kazuto、Ino Kazuhiko
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 10426-10426

    • DOI

      10.1038/s41598-019-47030-w

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Comprehensive gene mutation profiling of ctDNA in ovarian cancer and its pathological and prognostic impact2021

    • Author(s)
      野口 智子, 岩橋 尚幸, 坂井 和子, 松田 香穂, 松川 仁登美, 東嶋 佐緒里, 西尾 和人, 井箟 一彦
    • Organizer
      第18回 日本臨床腫瘍学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 卵巣癌における血中腫瘍細胞由来DNAの網羅的遺伝子変異解析とbTMB測定の有用性2021

    • Author(s)
      野口 智子、岩橋 尚幸、馬淵 泰士、八木 重孝、南 佐和子、坂井 和子、西尾 和人 、井箟 一彦
    • Organizer
      第62回 日本婦人科腫瘍学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Utility of profiling somatic mutation in circulating tumor DNA and blood tumor mutation burden detected by liquid biopsy in ovarian cancer.2020

    • Author(s)
      Tomoko Noguchi, Naoyuki Iwahashi, Kaho Matsuda, Hitomi Matsukawa, Yasushi Mabuchi, Shigetaka Yagi, Kazuhiko Ino
    • Organizer
      第72回 日本産科婦人科学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Utility of circulating tumor DNA liquid biopsy for detecting real-time gene mutation change and monitoring treatment response in neoadjuvant chemotherapy-treated advanced ovarian cancer2019

    • Author(s)
      野口 智子、岩橋 尚幸、八幡 環、井箟 一彦
    • Organizer
      第71回 日本産科婦人科学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 進行卵巣癌の NAC 症例における CAPP-seq による liquid biopsy の有用性について の検2019

    • Author(s)
      野口 智子、岩橋 尚幸、八幡 環、馬淵 泰士、八木 重孝、坂井 和子、西尾 和人、井箟 一彦
    • Organizer
      第61回 日本婦人科腫瘍学会学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] Liquid biopsyによる卵巣癌術前化学療法の治療効果予測に関する研究2019

    • Author(s)
      野口 智子、岩橋 尚幸、馬淵 泰士、八木 重孝、坂井 和子、西尾 和人、井箟一彦
    • Organizer
      第57回 日本癌治療学会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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