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Postoperative management of lung cancer based on tracing tumor clones

Research Project

Project/Area Number 19K22650
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 55:Surgery of the organs maintaining homeostasis and related fields
Research InstitutionChiba University

Principal Investigator

Yoshino Ichiro  千葉大学, 医学部附属病院, 特任教授 (40281547)

Co-Investigator(Kenkyū-buntansha) 中島 崇裕  獨協医科大学, 医学部, 准教授 (20400913)
鈴木 秀海  千葉大学, 大学院医学研究院, 准教授 (60422226)
田中 教久  千葉大学, 医学部附属病院, 助教 (80732461)
Project Period (FY) 2019-06-28 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords肺癌術後再発 / 腫瘍由来遺伝子変異 / 次世代シーケンサー / cell free DNA / circulating tumor DNA / 非小細胞性肺癌 / molecular recurrence / gene mutation / 循環腫瘍DNA / 非小細胞肺癌 / 外科治療 / 分子診断 / cell-free DNA / Cancer clone / 原発性肺癌 / がんクローン / 肺癌 / 腫瘍クローン / 次世代シーケンサ
Outline of Research at the Start

臨床I-III期肺癌患者の循環腫瘍クローンの検出によるmolecular stagingと治癒切除された後のmolecular recurrenceを検出して術後再発との関連を示すことで、腫瘍クローンのmolecularly monitoringに基づいた新規治療コンセプトを提唱することを目的とする。腫瘍クローンは変異遺伝子(約30遺伝子)のvariant allele frequencyを元に、進化系統樹を調査しておき、術後の経過観察中の血液中のcell free DNAを抽出し、次世代シーケンサにてcirculating tumor DNAの遺伝子変異を探索して腫瘍クローンを検出する。

Outline of Final Research Achievements

Molecular staging of tumor-derived circulating tumor DNA clones may be useful as a predictor of post-operative recurrence in lung cancer. In this study, we prospectively enrolled lung cancer patients planned for surgery and investigated the possibility of molecular staging by performing genetic mutation analysis by next-generation sequencing using DNA extracted from plasma collected during the course of patients with post-operative recurrence. The results showed that the envisaged tumor clones could not be identified, but mutations in genes such as TP53 and ERBB2 were often found in common between each sample in each case.

Academic Significance and Societal Importance of the Research Achievements

原発性肺癌に対する手術治療成績は術適応とされてきたIB期、IIA期、IIB期、IIIA期の各5年生存率は71.5%、60.2%、58.1%、50.6%、無再発5年生存率では60.1%、48.9%、45.1%、39.8%と未だ満足できるものではなく、治療成績の向上が望まれている。本研究は、血漿中の腫瘍循環クローンDNAに着目し、術後の再発予測に有用であるか検討した。今回は有意な腫瘍クローンは確認できなかったが、進行期の肺癌患者において多くみられる遺伝子異常の可能性を提示した。今後、周術期治療の方針決定などにおいて血漿中の腫瘍クローンが役割を持つことが期待される。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (6 results)

All 2024 2023

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] What are the risk factors for postoperative home oxygen therapy in patients with lung cancer?2024

    • Author(s)
      Yamanaka Takahiro、Sakairi Yuichi、Sata Yuki、Toyoda Takahide、Inage Terunaga、Tanaka Kazuhisa、Suzuki Hidemi、Matsui Yukiko、Yoshino Ichiro
    • Journal Title

      Journal of Thoracic Disease

      Volume: 16 Issue: 2 Pages: 989-996

    • DOI

      10.21037/jtd-23-1539

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Postoperative Prognosis of Patients with Non-small Cell Lung Cancer with cN0 and pN22023

    • Author(s)
      Toyoda Takahide、Nakajima Takahiro、Yamanaka Takahiro、Sata Yuki、Inage Terunaga、Sakairi Yuichi、Fujiwara Taiki、Suzuki Hidemi、Yoshino Ichiro
    • Journal Title

      Respiratory Endoscopy

      Volume: 1 Issue: 2 Pages: 52-57

    • DOI

      10.58585/respend.2023-0030

    • ISSN
      2758-3813
    • Year and Date
      2023-11-29
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thrombus formation at the stump of the pulmonary vein after lobectomy: a prospective multi-institutional study2023

    • Author(s)
      Yamamoto Takayoshi、Suzuki Hidemi、Sakairi Yuichi、Iwata Takekazu、Iizasa Toshihiko、Tagawa Tetsuzo、Yoshida Shigetoshi、Takemura Ryo、Sato Yasunori、Yoshino Ichiro
    • Journal Title

      Surgery Today

      Volume: 53 Issue: 12 Pages: 1343-1351

    • DOI

      10.1007/s00595-023-02692-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A simple nomogram for predicting occult lymph node metastasis of non-small cell lung cancer from preoperative computed tomography findings, including the volume-doubling time2023

    • Author(s)
      Karita Ryo、Suzuki Hidemi、Onozato Yuki、Kaiho Taisuke、Inage Terunaga、Ito Takamasa、Tanaka Kazuhisa、Sakairi Yuichi、Yoshino Ichiro
    • Journal Title

      Surgery Today

      Volume: 54 Issue: 1 Pages: 31-40

    • DOI

      10.1007/s00595-023-02695-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Can modified frailty index predict postoperative complication after lung cancer surgery?2023

    • Author(s)
      Wada Hironobu、Suzuki Hidemi、Sakairi Yuichi、Tanaka Kazuhisa、Sata Yuki、Toyoda Takahide、Inage Terunaga、Matsui Yukiko、Yoshino Ichiro
    • Journal Title

      General Thoracic and Cardiovascular Surgery

      Volume: 72 Issue: 3 Pages: 176-182

    • DOI

      10.1007/s11748-023-01962-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Intravenous Indocyanine Green Administration Provides Sufficient Margins in Pulmonary Segmentectomy2023

    • Author(s)
      Ochih T, Sakairi Y, Sata Y, Toyoda T, Inage T, Tnaka K. Suzuki H, Matsui Y, Ota M, Yoshino I
    • Organizer
      World Conference on Lung Cancer Singapore
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research

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Published: 2019-07-04   Modified: 2025-01-30  

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