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

Identification and function analyses of novel cancer-specific transfer RNA fragments in esophageal cancer

Research Project

Project/Area Number 20K09078
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionHiroshima University

Principal Investigator

Hamai Yoichi  広島大学, 病院(医), 講師 (90423384)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords食道癌 / Small RNA / Micro RNA / Transfer RNA / miRNA / 治療効果予測 / 化学療法 / 放射線治療 / 手術 / 核酸医薬 / エクソソーム / バイオマーカー / 分子標的
Outline of Research at the Start

食道癌の治療成績向上には、癌の浸潤・転移と治療感受性機構のさらなる解明と新規治療開発が必須である。我々は食道癌患者の血清で small ribonucleic acid (RNA) 解析を行い、多くの transfer RNA 断片 (tRNA fragment:tRF) を確認した。本研究は低酸素環境で培養した食道癌細胞株と患者血清を用いて、エクソソーム内のsmall RNAを網羅的に解析し、食道癌の悪性度や治療効果、予後と相関するtRFを同定し機能解析を行う。癌の新たな分子機構を明らかにし、悪性度診断や治療効果予測によるオーダーメイド医療、tRFを標的とした新規治療開発に発展させる。

Outline of Final Research Achievements

In the present study, we aimed to analyze the functions of micro RNA (miRNA) and transfer RNA fragments (tRFs), which were specifically identified in blood serum of esophageal cancer patients and were also significantly associated with the various expressions of RNA extracted from culture supernatant for esophageal cancer cell lines in hypoxic environment. We conducted the comprehensive small RNA expression analysis for theses esophageal cancer cell lines cultured in hypoxic environment, and some distinguishing miRNAs and tRFs were identified. The cell lines, which were increased or decreased these small RNA expressions, were made for subsequent evaluations of small RNA (miRNAs and tRFs) functions. We subsequently assessed the various cancer specific functions of these miRNAs and tRFs, such as anticancer drug sensitivity, invasive capacity and migration capability, in these esophageal cancer cell liens.

Academic Significance and Societal Importance of the Research Achievements

近年、tRFは多様な生物活性を有し、様々な細胞プロセスに関与することが報告されている。tRFは細胞の種類や疾患状態に高度に依存しているため優れたバイオマーカーになると考えられるが、その機能はいまだ不明な点が多い。本研究は実際に治療を行った癌患者の検体を用いtRFの選定を行う点、そこで同定された新規tRFの機能解析を行うことで新たな癌の分子機構を解明する点が、既存の報告にはない特徴である。本研究で得られた結果は臨床応用に直結し、多くの癌患者にとって有益になる。

Report

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

    (13 results)

All 2022 2021 2020

All Journal Article (13 results) (of which Peer Reviewed: 13 results,  Open Access: 5 results)

  • [Journal Article] Neutrophil-to-Lymphocyte Ratio as a Predictor of Postoperative Recurrence and Prognosis in Oesophageal Squamous Cell Carcinoma2022

    • Author(s)
      Ohsawa M, Hamai Y, Emi M, Ibuki Y, Kurokawa T, Yoshikawa T, Hirohata R, Kitasaki N, Okada M.
    • Journal Title

      Anticancer Researh

      Volume: 42 Issue: 3 Pages: 1499-1507

    • DOI

      10.21873/anticanres.15622

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Neoadjuvant Chemoradiotherapy Followed by Surgery for Borderline Resectable Esophageal Squamous Cell Carcinoma2022

    • Author(s)
      Hirohata R, Hamai Y, Hihara J, Emi M, Kurokawa T, Yoshikawa T, Ohsawa M, Kitasaki N, Okada M
    • Journal Title

      World Jornal of Surgery

      Volume: 46 Issue: 8 Pages: 1934-1943

    • DOI

      10.1007/s00268-022-06568-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prognostic value of quantitative parameters for esophageal squamous cell carcinoma determined by preoperative FDG-PET after trimodal therapy2022

    • Author(s)
      Hamai Y, Emi M, Ibuki Y, Murakami Y, Nishibuchi I, Nagata Y, Kurokawa T, Yoshikawa T, Hirohata R, Ohsawa M, Kitasaki N, Okada M.
    • Journal Title

      Surgery

      Volume: 172 Issue: 2 Pages: 584-592

    • DOI

      10.1016/j.surg.2022.03.034

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Blood biomarkers as predictors of pathological lymph node metastasis in clinical stage T1N0 esophageal squamous cell carcinoma2022

    • Author(s)
      Ohsawa M, Hamai Y, Emi M, Ibuki Y, Kurokawa T, Yoshikawa T, Hirohata R, Kitasaki N, Okada M
    • Journal Title

      Diseases of the Esophagus

      Volume: 36 Issue: 1

    • DOI

      10.1093/dote/doac042

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Correlation Between Tumor Uptake on FDG-PET and Malignant Features in Esophageal Squamous Cell Carcinoma After Neoadjuvant Chemotherapy Followed by Surgery2022

    • Author(s)
      Hamai Y, Emi M, Ibuki Y, Kurokawa T, Yoshikawa T, Ohsawa M, Hirohata R, Kitasaki N, Okada M
    • Journal Title

      Anticancer Research

      Volume: 42 Issue: 12 Pages: 6037-6045

    • DOI

      10.21873/anticanres.16115

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prediction of the tumor response and survival based on computed tomography in esophageal squamous cell carcinoma after trimodality therapy.2021

    • Author(s)
      Hirohata R, Hamai Y, Emi M, Kurokawa T, Yoshikawa T, Ohsawa M, Tadokoro K, Okada M.
    • Journal Title

      Surg Today

      Volume: 51 Issue: 9 Pages: 1496-1505

    • DOI

      10.1007/s00595-021-02277-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparison of Open and Thoracoscopic Esophagectomy in Patients With Locally Advanced Esophageal Squamous Cell Carcinoma After Neoadjuvant Therapy.2021

    • Author(s)
      Hamai Y, Emi M, Ibuki Y, Kurokawa T, Yoshikawa T, Hirohata R, Ohsawa M, Kitasaki N, Okada M.
    • Journal Title

      Anticancer Res.

      Volume: 41 Issue: 6 Pages: 3011-3021

    • DOI

      10.21873/anticanres.15083

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prospective Randomized Trial of Early Postoperative Enteral and Total Parenteral Nutrition for Treating Esophageal Cancer.2021

    • Author(s)
      Hamai Y, Hihara J, Emi M, Ibuki Y, Kurokawa T, Yoshikawa T, Hirohata R, Ohsawa M, Kitasaki N, Okada M.
    • Journal Title

      Anticancer Res.

      Volume: 41 Issue: 12 Pages: 6237-6246

    • DOI

      10.21873/anticanres.15444

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distribution of Lymph Node Metastasis in Esophageal Squamous Cell Carcinoma After Trimodal Therapy2020

    • Author(s)
      Hamai Yoichi、Emi Manabu、Ibuki Yuta、Kurokawa Tomoaki、Yoshikawa Toru、Ohsawa Manato、Hirohata Ryosuke、Murakami Yuji、Nishibuchi Ikuno、Imano Nobuki、Nagata Yasushi、Okada Morihito
    • Journal Title

      Annals of Surgical Oncology

      Volume: 28 Issue: 3 Pages: 1798-1807

    • DOI

      10.1245/s10434-020-09106-0

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating microRNA/isomiRs as novel biomarkers of esophageal squamous cell carcinoma2020

    • Author(s)
      Ibuki Yuta、Nishiyama Yukie、Tsutani Yasuhiro、Emi Manabu、Hamai Yoichi、Okada Morihito、Tahara Hidetoshi
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 4 Pages: e0231116-e0231116

    • DOI

      10.1371/journal.pone.0231116

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Predictions of Pathological Features and Recurrence Based on FDG-PET Findings of Esophageal Squamous Cell Carcinoma after Trimodal Therapy2020

    • Author(s)
      Hamai Yoichi、Emi Manabu、Ibuki Yuta、Murakami Yuji、Nishibuchi Ikuno、Nagata Yasushi、Furukawa Takaoki、Kurokawa Tomoaki、Ohsawa Manato、Yoshikawa Toru、Okada Morihito
    • Journal Title

      Annals of Surgical Oncology

      Volume: 27 Issue: 11 Pages: 4422-4430

    • DOI

      10.1245/s10434-020-08609-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Risk Factors for Recurrence in Esophageal Squamous Cell Carcinoma Without Pathological Complete Response After Trimodal Therapy2020

    • Author(s)
      KUROKAWA TOMOAKI、HAMAI YOICHI、EMI MANABU、IBUKI YUTA、YOSHIKAWA TORU、OHSAWA MANATO、HIROHATA RYOSUKE、OKADA MORIHITO
    • Journal Title

      Anticancer Research

      Volume: 40 Issue: 8 Pages: 4387-4394

    • DOI

      10.21873/anticanres.14442

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Long-term results of definitive chemoradiotherapy for unresectable locally advanced esophageal squamous cell carcinoma2020

    • Author(s)
      Ochi Masanori、Murakami Yuji、Nishibuchi Ikuno、Kubo Katsumaro、Imano Nobuki、Takeuchi Yuki、Kimura Tomoki、Hamai Yoichi、Emi Manabu、Okada Morihito、Nagata Yasushi
    • Journal Title

      Journal of Radiation Research

      Volume: 62 Issue: 1 Pages: 142-148

    • DOI

      10.1093/jrr/rraa110

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi