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Elucidation of the mechanism of lung metastasis activation by lymph node dissection for oral cancer and development of the preventive methods

Research Project

Project/Area Number 19K10303
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionTohoku University

Principal Investigator

Miyashita Hitoshi  東北大学, 大学病院, 講師 (70372323)

Co-Investigator(Kenkyū-buntansha) 森 士朗  東北大学, 大学病院, 講師 (80230069)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsリンパ節郭清 / リンパ節腫脹マウス / リンパ節転移モデルマウス / 肺微小転移 / 休眠細胞活性化 / 所属リンパ節郭清
Outline of Research at the Start

本研究では、我々の研究グループが独自に樹立したリンパ節腫脹マウスを用いた肺微小転移休眠細胞活性化モデルマウスを用いて、 転移リンパ節(LN)郭清による肺転活性化の機序を血中循環腫瘍細胞および転移先臓器での前転移ニッチ形成部位の遺伝子発現の変動から明らかにし、それぞれの変動遺伝子群の上流遺伝子発現の制御を可能にする手法を見出し、肺転移予防法の開発を目指す。

Outline of Final Research Achievements

Using a mouse model of lung metastasis, MXH10/Mo/lpr, in which micro-metastasis of the lung is activated by ablation of the lymph node (LN), a large amount of proteomic data were obtained by serum mass spectrometry analysis of molecules involved in the activation of lung metastasis with serum took before and after the activation. However, identification of the molecules involved has not been achieved. On the other hand, in the course of our study, it was found that doxorubicin-encapsulated liposomes (DOX-LP) injected into metastatic LNs and irradiated with ultrasound could inhibit the activation of the above-mentioned pulmonary micrometastases. We are currently investigating new strategies to elucidate the mechanism by which lung micrometastases are activated by resection of LNs in tumor-bearing mice and inactivated by intra-LN injection of DOX-LP and ultrasound irradiation.

Academic Significance and Societal Importance of the Research Achievements

肺転移は頭頸部癌を含む多くの癌において生命予後を規定する極めて重要な因子であり、肺転移の予防法の開発は癌患者の治療成績の向上に極めて重要である。本研究では、担癌マウスのリンパ節(LN)の切除により肺転移が活性化する病因解明を血清質量分析法を用いて試みたが肺転移の活性化に関与する分子の同定には至らなかった。しかし、ドキソルビシン封入リポソーム(DOX-LP)を転移LNに注入し超音波照射することにより上記肺微小転移の活性化を抑制する新たな肺転移の病態解析モデルを樹立した。この研究モデルにより肺転移病巣の活性化抑制のための治療法の開発に新たな方向性を示すことができた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 2 results) Book (1 results)

  • [Journal Article] Comparison of different diagnostic imaging techniques for the detection of bone invasion in oral cancers2021

    • Author(s)
      Kouketsu Atsumu、Miyashita Hitoshi、Kojima Ikuho、Sakamoto Maya、Murata Takaki、Mori Shiro、Nogami Shinnnosuke、Yamauchi Kensuke、Nagai Hirokazu、Kumamoto Hiroyuki、Takahashi Tetsu
    • Journal Title

      Oral Oncology

      Volume: 120 Pages: 105453-105453

    • DOI

      10.1016/j.oraloncology.2021.105453

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wound healing effect of autologous fibrin glue and polyglycolic acid sheets in a rat back skin defect model2021

    • Author(s)
      Atsumu Kouketsu, Yoshinaka Shimizu, Shinnosuke Nogami, Minami Yamada-Fujiwara, Hirokazu Nagai, Kensuke Yamauchi, Hitoshi Miyashita, Haruka Saito, Kenji Odashima, Yuta Yanagisawa, Tetsu Takahashi
    • Journal Title

      Transfusion and Apheresis Science

      Volume: 60 Issue: 4 Pages: 103144-103144

    • DOI

      10.1016/j.transci.2021.103144

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Impact of CAD/CAM mandibular reconstruction on chewing and swallowing function after surgery for locally advanced oral cancer: A retrospective study of 50 cases2021

    • Author(s)
      Akira Ohkoshi, Naoko Sato, Koreyuki Kurosawa, Hitoshi Miyashita, Ryo Ishii, Ayako Nakanome, Takenori Ogawa, Masahiro Tachi, Tetsu Takahashi, Yukio Katori
    • Journal Title

      Auris Nasus Larynx

      Volume: 48 Issue: 5 Pages: 1007-1012

    • DOI

      10.1016/j.anl.2021.03.014

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High detection sensitivity and reliable morphological correlation of PET with a silicon photomultiplier for primary tongue squamous cell carcinoma2020

    • Author(s)
      Kojima I, Takanami K, Ogawa T, Sakamoto M, Nagai H, Miyashita H, Iikubo M.
    • Journal Title

      Ann Nucl Med

      Volume: 34 Issue: 9 Pages: 643-352

    • DOI

      10.1007/s12149-020-01489-0

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] ISG20 is overexpressed in clinically relevant radioresistant oral cancer cells2020

    • Author(s)
      Hitoshi Miyashita, Motoi Fukumoto, Yoshikazu Kuwahara, Tetsu Takahashi, Manabu Fukumoto
    • Journal Title

      International journal of clinical and experimental pathology

      Volume: 13(7) Pages: 1633-1639

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Perioperative Evaluation of the Controlling Nutritional Status (CONUT) Score in Patients with N0 Oral Cancer.2019

    • Author(s)
      Miyashita H, Kitamura J, Ando F, Kouketsu A, Kataoka Y, Shimoda H, Inamura N, Okamoto T, Takahashi T
    • Journal Title

      Prog nutr

      Volume: 21 Pages: 537541-537541

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Changes in oral health-related quality of life after oral rehabilitation with dental implants in patients following mandibular tumor resection2019

    • Author(s)
      Sato N, Koyama S, Mito T, Izumita K, Ishiko R, Yamauchi K, Miyashita H, Ogawa T, Kosaka M, Takahashi T, Sasaki K.
    • Journal Title

      Journal of Oral Science

      Volume: 61 Issue: 3 Pages: 406-411

    • DOI

      10.2334/josnusd.18-0234

    • NAID

      130007696183

    • ISSN
      1343-4934, 1880-4926
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 3D models and simple approach using the mountable alignment guide for mandibular reconstruction with free fibular flap2020

    • Author(s)
      Miyashita H, Sato N, Kitamura J, Takagi N, Kurosawa K, Kochi T, Ogawa T, Okoshi A, Izumida K, Takeda Y, Kataoka Y, Nogami S, Yamauchi K, Nagai H, Kato H, Koyama S, Takahashi T
    • Organizer
      第38回日本口腔腫瘍学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 3D simulation and guided surgery for mandibular reconstruction with fibular free flap2019

    • Author(s)
      Miyashita H
    • Organizer
      第36回日本顎顔面補綴学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 3D models and simple approach using the mountable alignment guide for mandibular reconstruction with free fibular flap2019

    • Author(s)
      Miyashita H
    • Organizer
      The 64th Congress of Japanese Society of Oral and Maxillofacial Surgeons; Japan?Germany International Symposium
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Pin1 inhibitor targets human cancer cells2019

    • Author(s)
      Miyashita H, Uchida T, Takahashi T
    • Organizer
      第43回日本頭頸部癌学会
    • Related Report
      2019 Research-status Report
  • [Book] Journal of Otolaryngology, Head and Neck Surgery. Vol. 35 No. 9(9月増大号)2019

    • Author(s)
      小川武則,黒沢是之,宮下 仁,佐藤奈央子,大越 明,中目亜矢子,吉田拓矢,石川 健一朗,遠藤拓弥,香取幸夫
    • Total Pages
      4
    • Publisher
      東京医学社
    • ISBN
      9784885635281
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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