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MTH1 expression in pediatric malignant solid tumor: a new therapeutic target

Research Project

Project/Area Number 17K11511
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pediatric surgery
Research InstitutionKyushu University

Principal Investigator

Takemoto Junkichi  九州大学, 医学研究院, 助教 (60621711)

Co-Investigator(Kenkyū-buntansha) 孝橋 賢一  九州大学, 医学研究院, 准教授 (10529879)
田口 智章  九州大学, 医学研究院, 教授 (20197247)
木下 義晶  新潟大学, 医歯学系, 教授 (80345529)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords神経芽腫 / 酸化ストレス / MTH1 / 8-OHdG / 免疫組織化学染色 / OGG1 / MUTYH / 小児腫瘍学
Outline of Final Research Achievements

In this study, we evaluated 67 neuroblastomas. Immunohistochemistry for MTH1, 8-OHdG, OGG1 and MUTYH was performed. There was a significant correlation between MTH1and 8-OHdG expression. This result suggests that gene mutation was induced by oxidative stress and MTH1 may express as a repair protein in neuroblastoma.
However, there was no significant correlation of MTH1 and 8-OHdG expression with other DNA repair enzymes, such as OGG1 and MUTYH. These result could not demonstrate the hypothesis that inhibition of MTH1expression induces cell death.

Academic Significance and Societal Importance of the Research Achievements

「MTH1抑制による細胞死の誘導」という仮説の立証はできず、本研究の目的である、小児固形悪性腫瘍におけるMTH1を標的とした治療薬への応用に繋げるには至らなかった。
しかしながら、本研究により神経芽腫において酸化ストレスによる遺伝子変異が生じている可能性が示され、修復機構としてMTH1が発現している可能性が考えられた。この結果が神経芽腫の発生や自然退縮メカニズムの解明という点において可能性を秘めているものであり、本研究成果は意義あるものと思われる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2019 2018

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Journal Article] HuC/D expression in small round cell tumors and neuroendocrine tumors: a useful tool for distinguishing neuroblastoma from childhood small round cell tumors2019

    • Author(s)
      Takemoto Junkichi、Kuda Masaaki、Kohashi Kenichi、Yamada Yuichi、Koga Yutaka、Kinoshita Izumi、Souzaki Ryota、Taguchi Tomoaki、Oda Yoshinao
    • Journal Title

      Human Pathology

      Volume: 85 Pages: 162-167

    • DOI

      10.1016/j.humpath.2018.11.004

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Radiological Features of IDO1+/PDL1+ Lung Adenocarcinoma: A Retrospective Single-institution Study2018

    • Author(s)
      TAKADA KAZUKI、TOYOKAWA GOUJI、TAGAWA TETSUZO、SHIMOKAWA MOTOTSUGU、KOHASHI KENICHI、HARO AKIRA、OSOEGAWA ATSUSHI、ODA YOSHINAO、MAEHARA YOSHIHIKO
    • Journal Title

      Anticancer Research

      Volume: 38 Issue: 9 Pages: 5295-5303

    • DOI

      10.21873/anticanres.12856

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Utility of Muscle-Sparing Axillar Skin Crease Incision with Thoracoscopic Surgery in Children2018

    • Author(s)
      Souzaki Ryota、Kawakubo Naonori、Miyoshi Kina、Obata Satoshi、Kinoshita Yoshiaki、Takemoto Junkichi、Kohashi Kenichi、Oda Yoshinao、Taguchi Tomoaki
    • Journal Title

      Journal of Laparoendoscopic & Advanced Surgical Techniques

      Volume: 28 Issue: 11 Pages: 1378-1382

    • DOI

      10.1089/lap.2018.0169

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Indoleamine 2,3-dioxygenase 1 and programmed cell death-ligand 1 co-expression correlates with aggressive features in lung adenocarcinoma2018

    • Author(s)
      Kozuma Yuka、Takada Kazuki、Toyokawa Gouji、Kohashi Kenichi、Shimokawa Mototsugu、Hirai Fumihiko、Tagawa Tetsuzo、Okamoto Tatsuro、Oda Yoshinao、Maehara Yoshihiko
    • Journal Title

      European Journal of Cancer

      Volume: 101 Pages: 20-29

    • DOI

      10.1016/j.ejca.2018.06.020

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Successful chemotherapeutic treatment for metastatic littoral cell angioma2018

    • Author(s)
      Takayoshi Kotoe、Doi Goro、Tsuruta Nobuhiro、Yoshihiro Tomoyasu、Nio Kenta、Tsuchihashi Kenji、Ariyama Hiroshi、Odawara Jun、Shimoda Shinji、Kohashi Kenichi、Oda Yoshinao、Itoh Shinji、Harimoto Norifumi、Maehara Yoshihiko、Kusaba Hitoshi、Akashi Koichi、Baba Eishi
    • Journal Title

      Medicine

      Volume: 97 Issue: 15 Pages: e0378-e0378

    • DOI

      10.1097/md.0000000000010378

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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