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Identification of tumor stroma-related genes in head and neck cancer

Research Project

Project/Area Number 19K18736
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56050:Otorhinolaryngology-related
Research InstitutionSapporo Medical University

Principal Investigator

Yorozu Akira  札幌医科大学, 医学部, 研究員 (20792120)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords頭頚部癌 / 癌間質 / AEBP1 / ACLP / CAF / がん間質 / 扁平上皮癌 / 腫瘍間質 / 癌関連線維芽細胞 / 頭頚部がん
Outline of Research at the Start

これまでに口腔扁平上皮がん細胞株、頭頚部がん臨床検体由来のCAF、および正常線維芽細胞を用いて解析により頭頚部がん微小環境においてもAEBP1が重要な役割を担っていることが明らかになってきた。さらにThe Cancer Genome Atlas (TCGA)のRNA-seqデータを解析した結果、AEBP1の高発現が頭頸部がんの予後不良因子であることが明らかになった。本研究で頭頸部がんの微小環境において、AEBP1はどのような分子メカニズムで腫瘍促進的に働くのか、AEBP1の相互作用因子および下流標的は何か、そしてAEBP1は頭頸部がんの新規治療標的となりうるか、という点を明らかにしたい。

Outline of Final Research Achievements

First, we analyzed the expression levels of AEBP1 in oral squamous cell cancer (OSCC) by immunohistochemical staining of 49 clinical specimens. As a result, we confirmed that AEBP1 is significantly upregulated in cancer associated fibroblast (CAF) cells in tumor tissues and expression levels of AEBP1 is associated with tumor size, clinical stage, histological grade, and prognosis of OSCC patients. The expression of AEBP1 was induced by treatment of TGF-β or co-culture with OSCC cells, and depletion of AEBP1 in CAF cells inhibited migration ability and invasiveness of co-cultured OSCC cells. Additionally, we demonstrated that AEBP1 induced upregulation of several EMT related genes including vimentin and overexpression of AEBP1 in CAF cells promoted invasion of OSCC cells and tumor forming ability in mouse xenograft model.

Academic Significance and Societal Importance of the Research Achievements

AEBP1のがん間質における働きについて、いまだ研究報告はわずかである。本研究により、AEBP1が頭頸部扁平上皮がんのCAFにおいて高発現すること、CAFにおけるAEBP1の発現は、癌細胞との共培養やTGF-β刺激により誘導されること、がん細胞の遊走・浸潤・転移の促進や、腫瘍免疫の抑制に関わることが明らかになった。今後、CAFやがん細胞においてAEBP1と相互作用する分子の同定、腫瘍間質と免疫細胞の相互作用におけるAEBP1の機能解析など、AEBP1の作用機構を解明することで、頭頚部扁平上皮がんの新規治療法の開発につながることが期待される。

Report

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

    (6 results)

All 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Upregulation of AEBP1 in endothelial cells promotes tumor angiogenesis in colorectal cancer2020

    • Author(s)
      Yorozu Akira、Yamamoto Eiichiro、Niinuma Takeshi、Tsuyada Akihiro、Maruyama Reo、Kitajima Hiroshi、Numata Yuto、Kai Masahiro、Sudo Gota、Kubo Toshiyuki、Nishidate Toshihiko、Okita Kenji、Takemasa Ichiro、Nakase Hiroshi、Sugai Tamotsu、Takano Kenichi、Suzuki Hiromu
    • Journal Title

      Cancer Science

      Volume: - Issue: 5 Pages: 1631-1644

    • DOI

      10.1111/cas.14360

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] UHRF1 depletion and HDAC inhibition reactivate epigenetically silenced genes in colorectal cancer cells2019

    • Author(s)
      Niinuma Takeshi、Kitajima Hiroshi、Kai Masahiro、Yamamoto Eiichiro、Yorozu Akira、Ishiguro Kazuya、Sasaki Hajime、Sudo Gota、Toyota Mutsumi、Hatahira Tomo、Maruyama Reo、Tokino Takashi、Nakase Hiroshi、Sugai Tamotsu、Suzuki Hiromu
    • Journal Title

      Clinical Epigenetics

      Volume: 11 Issue: 1 Pages: 70-70

    • DOI

      10.1186/s13148-019-0668-3

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 頭頚部扁平上皮がんの微小環境におけるAEBP1の解析2020

    • Author(s)
      14.萬顕,関口翔平,山本英一郎,新沼猛,高澤啓,須藤豪太,畠中柚衣,北嶋洋志,甲斐正広,小山内誠,宮崎晃亘,高野賢一,鈴木拓
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Analysis of AEBP1 in the microenvironment of head and neck squamous cell carcinoma.2019

    • Author(s)
      2.Akira Yorozu, Makoto Kurose, Takashi Kojima, Kenichi Takano, Hiromu Suzuki.
    • Organizer
      15th Japan-Taiwan Conference on Otolaryngory-Head and Neck Surgery.
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 頭頚部偏平上皮がんの微小環境におけるAEBP1の解析.2019

    • Author(s)
      10.萬顕,山本英一郎,須藤豪太,沼田有斗,新沼猛,北嶋洋志,甲斐正広,小島隆,高野賢一,鈴木拓.
    • Organizer
      第78回日本癌学会学術総会.
    • Related Report
      2019 Research-status Report
  • [Presentation] 大腸がんにおける腫瘍血管内皮関連遺伝子の同定.2019

    • Author(s)
      20.萬顕,山本英一郎,須藤豪太,新沼猛,北嶋洋志,甲斐正広,高野賢一,鈴木拓.
    • Organizer
      第120回北海道癌談話会例会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2022-01-27  

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