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

Novel curative condition after endoscopic resection for colorectal T1 carcinoma using genome biomarker

Research Project

Project/Area Number 20K08385
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionHiroshima University

Principal Investigator

Oka Shiro  広島大学, 医系科学研究科(医), 教授 (30403538)

Co-Investigator(Kenkyū-buntansha) 田中 信治  広島大学, 病院(医), 教授 (00260670)
卜部 祐司  広島大学, 病院(医), 寄附講座准教授 (10648033)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords大腸T1癌 / リンパ節転移 / 内視鏡切除 / 超音波内視鏡 / ゲノムバイオマーカー / 浸潤 / 転移 / マクロファージ / 免疫染色 / リンパ管侵襲 / 内視鏡的根治基準
Outline of Research at the Start

大腸粘膜下層浸潤(T1)癌は約10%にリンパ節転移を認めるため、大腸T1癌内視鏡的切除後の追加外科手術の決定にはより正確なリンパ節転移予測が必須である。本研究の目的は,大腸T1癌関連遺伝子の網羅的解析を行うことによって,癌の浸潤や転移に関するドライバー変異を同定し,大腸T1癌の内視鏡的切除病変の取り扱いの基準となる転移リスクの層別化モデルを構築することである。本研究の目的は,浸潤・転移リスクの極めて低い大腸T1癌を明らかとし,不要なover-surgery症例をなくすことで,患者の生活の質の向上と医療費削減に貢献することである。

Outline of Final Research Achievements

The risk of local recurrence might be low in T1 colorectal carcinoma with a tumor vertical margin >500 μm by endoscopic resection. The distance from the tumor invasive front to the muscle layer on EUS was defined as the tumor-free distance (EUS-TFD) and classified as Type I (EUS-TFD >1 mm) and II (<1 mm).EUS-TFD classification is a novel diagnostic indicator to predict VM >500 μm in ESD preoperatively.In addition, I examined the clonal progression of colorectal tumors for the purpose of establishing new endoscopic treatment curative criteria using the genome biomarker. The outbreak of Tis cancer occurred by WNT/TGFβ, p53, RTK/RAS/MAPK course and clarified that it was WNT/ TGF β course that was the most frequent and clarified the possibility that PIK course was the carcinogenesis pathway that participated in the T1 carcinoma.

Academic Significance and Societal Importance of the Research Achievements

内視鏡技術の進歩により,大腸粘膜下層浸潤(T1)癌の内視鏡的完全切除が可能となったが,大腸T1癌は約10%のリンパ節転移リスクがあり,内視鏡的切除後の追加外科手術の決定にはより正確なリンパ節転移予測が必須である。大腸T1癌関連遺伝子の網羅的解析を行うことによって,癌の浸潤や転移に関するドライバー変異を同定し,大腸T1癌の内視鏡的切除病変の取り扱いの基準となる転移リスクの層別化モデルを構築することである。本研究の成果により,浸潤・転移リスクの極めて低い大腸T1癌を明らかとし,不要なover-surgery症例をなくすことで,患者の生活の質の向上と医療費削減に貢献できる。

Report

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

    (8 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (4 results)

  • [Journal Article] Novel endoscopic ultrasonography classification for assured vertical resection margin (<500μm) in colorectal endoscopic submucosal dissection2022

    • Author(s)
      Kamigaichi Yuki、Oka Shiro、Tanino Fumiaki、Yamamoto Noriko、Tamari Hirosato、Shimohara Yasutsugu、Nishimura Tomoyuki、Inagaki Katsuaki、Okamoto Yuki、Tanaka Hidenori、Yamashita Ken、Arihiro Koji、Tanaka Shinji
    • Journal Title

      Journal of Gastroenterology and Hepatology

      Volume: 37 Issue: 12 Pages: 2289-2296

    • DOI

      10.1111/jgh.16008

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Vertical tumor margin of endoscopic resection for T1 colorectal carcinoma affects the prognosis of patients undergoing additional surgery2022

    • Author(s)
      Nishimura Tomoyuki、Oka Shiro、Kamigaichi Yuki、Tamari Hirosato、Shimohara Yasutsugu、Okamoto Yuki、Inagaki Katsuaki、Tanaka Hidenori、Yamashita Ken、Yuge Ryo、Urabe Yuji、Arihiro Koji、Shimamoto Fumio、Tanaka Shinji
    • Journal Title

      Surgical Endoscopy

      Volume: 36 Issue: 8 Pages: 5970-5978

    • DOI

      10.1007/s00464-021-08977-y

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Role of tumor-associated macrophages at the invasive front in human colorectal cancer progression2021

    • Author(s)
      Inagaki K, Kunisho S, Takigawa H, Yuge R, Oka S, Tanaka S, Shimamoto F, Chayama K, Kitadai Y.
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 7 Pages: 2692-2704

    • DOI

      10.1111/cas.14940

    • Related Report
      2021 Research-status Report
    • Open Access
  • [Journal Article] Clinical significance of immunohistochemical lymphovascular evaluation to determine additional surgery after endoscopic submucosal dissection for colorectal T1 carcinoma2020

    • Author(s)
      Nishimura Tomoyuki、Oka Shiro、Tanaka Shinji、Asayama Naoki、Nagata Shinji、Tamaru Yuzuru、Kuwai Toshio、Yamashita Ken、Ninomiya Yuki、Kitadai Yasuhiko、Arihiro Koji、Kuraoka Kazuya、Kaneko Mayumi、Shimamoto Fumio、Chayama Kazuaki
    • Journal Title

      International Journal of Colorectal Disease

      Volume: 36 Issue: 5 Pages: 949-958

    • DOI

      10.1007/s00384-020-03795-5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 側方発育型大腸腫瘍におけるクローン進化の解析2022

    • Author(s)
      卜部祐司 ,岡 志郎,田中信治
    • Organizer
      第7回 Gastro plus
    • Related Report
      2022 Annual Research Report
  • [Presentation] 大腸T1癌ESD後根治度判定における免疫染色を用いた脈管侵襲評価の有用性 -多施設前むき研究-2020

    • Author(s)
      西村朋之,田中信治,岡 志郎,山下 賢,桑井寿雄,永田信二,茶山一彰
    • Organizer
      第16回 日本消化管学会総会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 大腸T1癌ESD後追加腸切除考慮群の取り扱いの現状 -多施設前向き観察研究-2020

    • Author(s)
      西村朋之,田中信治,茶山一彰
    • Organizer
      第99回 日本消化器内視鏡学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Impact of the immunohistochemical lymphovascular evaluation in judgement of curability for patients with colorectal T1 carcinoma after ESD - a multicenter prospective study2020

    • Author(s)
      Tomoyuki Nishimura, Shinji Tanaka, Shiro Oka, Ken Yamashita, Toshio Kuwai, Shinji Nagata, Kouji Arihiro, Fumio Shimamoto, Kazuaki Chayama
    • Organizer
      United European Gastroenterology Week 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