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Investigation of the cause of gastric cancer peritoneal dissemination by exosome-encapsulated microRNA/gene regulation

Research Project

Project/Area Number 20K09107
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 InstitutionKumamoto University

Principal Investigator

Kurashige Junji  熊本大学, 大学院生命科学研究部(医), 特定研究員 (90594474)

Co-Investigator(Kenkyū-buntansha) 江藤 弘二郎  熊本大学, 病院, 特任助教 (40585717)
原田 和人  熊本大学, 大学院生命科学研究部(医), 特定研究員 (70608869)
山下 晃平  熊本大学, 大学院生命科学研究部(医), 特定研究員 (00867202)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords胃癌 / 腹膜播種 / SERPINE2 / 細胞外マトリックス / microRNA / エキソソーム
Outline of Research at the Start

近年、細胞から分泌される50~100nmの小さな膜小胞である「エキソソーム」内に、タンパク質やmRNA、そしてmicroRNAが含有されており、種種の生体内現象に関わっていることが報告されている。エキソソームは、新しい細胞間コミュニケーションツールとして重要な役割を担っていると考えられ、新たな癌の浸潤・転移の治療標的になるのではないかと考えられている。本研究の目的は、わが国で依然として高い罹患率と致死率を示す胃癌に焦点を当て、胃癌が分泌するエキソソームと、胃癌の腹膜播種進展との関係について明らかにし、エキソソームに内包されたmicroRNA/遺伝子制御による腹膜播種の新しい治療法として可能性を追求することである。

Outline of Final Research Achievements

Using a mouse model of peritoneal dissemination, we searched for genes that are significantly involved in peritoneal dissemination of metastasis and that significantly determine the prognosis of gastric cancer patients as potential therapeutic targets. We found that the gene SERPINE2 is a component of the extracellular matrix, and that overall survival and recurrence-free survival tended to be lower in the group with high SERPINE2 expression, suggesting that SERPINE2 This suggests that SERPINE2 expression influences prognosis. In addition, the frequency of gastric cancer peritoneal dissemination was significantly higher in the group of patients with high SERPINE2 expression, and since existing anticoagulants exist as inhibitors of SERPINE2, we are investigating whether these agents are effective against gastric cancer peritoneum in vivo.

Academic Significance and Societal Importance of the Research Achievements

スキルス胃癌は若年者に発症し、高い死亡率を有するにも関わらず、これまで解明されている情報は極めて限られており、腹膜播種転移機序については未知な部分が多く、有効な予防法や治療法は依然確立していない。SERPINE2に関しては、既存の抗凝固薬がその抑制薬剤として存在しており、実臨床で用いるハードルも低く、癌の進展を抑制させる可能性があり、新しい胃癌腹膜播種の治療につながる可能性がある。

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 (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results)

  • [Journal Article] ASO Visual Abstract: Dynamic Alteration in HLA-E Expression and Soluble HLA-E via Interaction with Natural Killer Cells in Gastric Cancer2022

    • Author(s)
      Morinaga Takeshi、Iwatsuki Masaaki、Yamashita Kohei、Yasuda-Yoshihara Noriko、Yamane Taishi、Matsumoto Chihiro、Harada Kazuto、Eto Kojiro、Kurashige Junji、Ishimoto Takatsugu、Baba Yoshifumi、Miyamoto Yuji、Yoshida Naoya、Baba Hideo
    • Journal Title

      Annals of Surgical Oncology

      Volume: 30 Issue: 2 Pages: 1253-1254

    • DOI

      10.1245/s10434-022-12555-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Alteration in HLA-E Expression and Soluble HLA-E via Interaction with Natural Killer Cells in Gastric Cancer2022

    • Author(s)
      Morinaga Takeshi、Iwatsuki Masaaki、Yamashita Kohei、Yasuda-Yoshihara Noriko、Yamane Taishi、Matsumoto Chihiro、Harada Kazuto、Eto Kojiro、Kurashige Junji、Ishimoto Takatsugu、Baba Yoshifumi、Miyamoto Yuji、Yoshida Naoya、Baba Hideo
    • Journal Title

      Annals of Surgical Oncology

      Volume: 30 Issue: 2 Pages: 1240-1252

    • DOI

      10.1245/s10434-022-12505-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of HLA-E Expression Combined with Natural Killer Cell Status as a Prognostic Factor for Advanced Gastric Cancer2022

    • Author(s)
      Morinaga Takeshi、Iwatsuki Masaaki、Yamashita Kohei、Matsumoto Chihiro、Harada Kazuto、Kurashige Junji、Iwagami Shiro、Baba Yoshifumi、Yoshida Naoya、Komohara Yoshihiro、Baba Hideo
    • Journal Title

      Annals of Surgical Oncology

      Volume: - Issue: 8 Pages: 4951-4960

    • DOI

      10.1245/s10434-022-11665-3

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Prophylactic laparoscopic total gastrectomy for gastric adenocarcinoma and proximal polyposis of the stomach (GAPPS): the first report in Asia2022

    • Author(s)
      Matsumoto Chihiro、Iwatsuki Masaaki、Iwagami Shiro、Morinaga Takeshi、Yamashita Kohei、Nakamura Kenichi、Eto Kojiro、Kurashige Junji、Baba Yoshifumi、Miyamoto Yuji、Yoshida Naoya、Komohara Yoshihiro、Baba Hideo
    • Journal Title

      Gastric Cancer

      Volume: 25 Issue: 2 Pages: 473-478

    • DOI

      10.1007/s10120-021-01253-x

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis of the survival and clinical characteristics of colorectal cancer patients with mental disorders2021

    • Author(s)
      Kurashige Junji、Iwatsuki Masaaki、Mima Kosuke、Nomoto Daichi、Shigaki Hironobu、Yamashita Kohei、Morinaga Takeshi、Iwagami Shiro、Miyanari Nobutomo、Baba Hideo
    • Journal Title

      Annals of Gastroenterological Surgery

      Volume: 5 Issue: 3 Pages: 314-320

    • DOI

      10.1002/ags3.12421

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Trastuzumab upregulates programmed death ligand-1 expression through interaction with NK cells in gastric cancer2020

    • Author(s)
      Yamashita Kohei、Iwatsuki Masaaki、Yasuda-Yoshihara Noriko、Morinaga Takeshi、Nakao Yosuke、Harada Kazuto、Eto Kojiro、Kurashige Junji、Hiyoshi Yukiharu、Ishimoto Takatsugu、Nagai Yohei、Iwagami Shiro、Baba Yoshifumi、Miyamoto Yuji、Yoshida Naoya、Ajani Jaffer A.、Baba Hideo
    • Journal Title

      British Journal of Cancer

      Volume: 124 Issue: 3 Pages: 595-603

    • DOI

      10.1038/s41416-020-01138-3

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Two Asian families with gastric adenocarcinoma and proximal polyposis of the stomach successfully treated via laparoscopic total gastrectomy2020

    • Author(s)
      Kanemitsu Kosuke、Iwatsuki Masaaki、Yamashita Kohei、Komohara Yoshihiro、Morinaga Takeshi、Iwagami Shiro、Eto Kojiro、Nagai Yohei、Kurashige Junji、Baba Yoshifumi、Yoshida Naoya、Baba Hideo
    • Journal Title

      Clinical Journal of Gastroenterology

      Volume: 14 Issue: 1 Pages: 92-97

    • DOI

      10.1007/s12328-020-01290-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Oligometastatic recurrence as a prognostic factor after curative resection of esophageal squamous cell carcinoma2020

    • Author(s)
      Morinaga Takeshi、Iwatsuki Masaaki、Yamashita Kohei、Harada Kazuto、Kurashige Junji、Nagai Yohei、Iwagami Shiro、Baba Yoshihumi、Yoshida Naoya、Baba Hideo
    • Journal Title

      Surgery Today

      Volume: - Issue: 5 Pages: 798-806

    • DOI

      10.1007/s00595-020-02173-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

URL: 

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

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