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Characterization of cancer-associated adipocytes and evaluation of its role in breast cancer

Research Project

Project/Area Number 26461942
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field General surgery
Research InstitutionSaitama Medical University (2015-2016)
Chiba University (2014)

Principal Investigator

FUJIMOTO Hiroshi  埼玉医科大学, 医学部, 講師 (60456027)

Co-Investigator(Kenkyū-buntansha) 長嶋 健  千葉大学, 医学部附属病院, 准教授 (60292710)
榊原 雅裕  千葉大学, 医学部附属病院, 助教 (70375632)
三階 貴史  千葉大学, 医学部附属病院, 助教 (00375685)
宮崎 勝  国際医療福祉大学, 大学病院, 教授 (70166156)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords癌間質相互作用 / 脂肪細胞 / 乳癌
Outline of Final Research Achievements

To investigate the role of adipocytes in tumor microenvironment, we isolated and embedded primary adipocytes from human breast cancer tissue into a three-dimensional collagen gel. Then, we compared the phenotype of normal breast adipocytes (NBAs) and cancer-associated adipocytes (CAAs). In collagen gel culture, CAAs had a more immature phenotype than NBAs.Furthermore, we examined the effect of media conditioned by NBAs and CAAs on breast cancer cells. These cells showed significantly higher migration in a CAA-conditioned medium than in an NBA-conditioned medium. A cytokine array showed higher levels of interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1) in the CAA-conditioned medium. Neutralizing antibodies against IL-6 and MCP-1 significantly reduced the migration of cancer cells. From these data, we concluded that adipocytes revert to an immature phenotype in the presence of cancer cells, and promote cancer cell migration via adipokines including IL-6 and MCP-1.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (4 results)

All 2016 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Cancer-mediated adipose reversion promotes cancer cell migration via IL-6 and MCP-12015

    • Author(s)
      Kaoru Fujisaki,Hiroshi Fujimoto, Takafumi Sangai, Takeshi Nagashima, Masahiro Sakakibara, Nobumitsu Shiina, Masayuki Kuroda, Yasuyuki Aoyagi, Masaru Miyazaki
    • Journal Title

      Breast Cancer Research and Treatment

      Volume: 150 Issue: 2 Pages: 255-263

    • DOI

      10.1007/s10549-015-3318-2

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] cancer-associated adipocyte (CAA)の特徴と癌進展に果たす役割2016

    • Author(s)
      藤本浩司、藤咲薫、三階貴史、長嶋健、榊原雅裕、矢形寛、宮崎勝
    • Organizer
      第24回日本乳癌学会学術総会
    • Place of Presentation
      東京
    • Year and Date
      2016-06-16
    • Related Report
      2016 Annual Research Report
  • [Presentation] Characterization of cancer-associated adipocytes and evaluation of its role in breast cancer2016

    • Author(s)
      Hiroshi Fujimoto
    • Organizer
      EBCC10 - European Breast Cancer Conference 10
    • Place of Presentation
      アムステルダム
    • Year and Date
      2016-03-09
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 乳癌環境下における脂肪細胞の質的変化と腫瘍細胞の増殖性及び走化性2015

    • Author(s)
      藤本浩司
    • Organizer
      第23回日本乳癌学会学術総会
    • Place of Presentation
      東京
    • Year and Date
      2015-07-02
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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