• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study of enviromental factors affecting the initiation and the progression of prostate cancer for the clinical application.

Research Project

Project/Area Number 16K11003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionOsaka University

Principal Investigator

Nonomura Norio  大阪大学, 医学系研究科, 教授 (30263263)

Co-Investigator(Kenkyū-buntansha) 植村 元秀  大阪大学, 医学系研究科, 特任准教授(常勤) (40631015)
藤田 和利  大阪大学, 医学系研究科, 講師 (50636181)
Research Collaborator Hayashi Takuji  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords前立腺癌 / 高脂肪食 / 発癌 / PTEN / p53 / ノックアウトマウス
Outline of Final Research Achievements

Inflammation and immune responses play important roles in tumor progression. High-fat diet (HFD) causes obesity and systemic inflammation. In this study, HFD accelerated tumor growth and increased local myeloid- derived suppressor cells (MDSCs) in autochthonous model mice for prostate cancer, both of which were suppressed by celecoxib. HFD-induced tumor growth was associated with IL6 secreted by prostatic macro- phages. Inhibition of IL6 signaling also suppressed tumor growth and decreased MDSCs in HFD-fed mice. In human prosta- tectomy specimens, the tumor-infiltrating MDSCs of obese patients with prostate cancer were also higher than those of non-obese patients. Our results suggest that HFD-induced prostate cancer growth via IL6 signaling could also exist in obese human. Anti-inflammatory drugs, such as celecoxib, have potential clinical benefits for obese patients with prostate cancer.

Academic Significance and Societal Importance of the Research Achievements

前立腺癌の近年の発症増加は食生活の欧米化が原因と考えられているが、その機序は未だ明らかになっていない。慢性炎症がメタボリック症候群や癌の基礎的病態となっていることが明らかになりつつあり、前立腺癌の発症進展に食生活の変化による全身性慢性炎症が重要な役割を果たしている可能性がある。本研究ではこれらが明らかになり、日常生活の生活習慣を変えることにより前立腺癌の進展を抑えることができる可能性が示唆された。また、炎症が重要な役割を果たしていることが明らかになり、それらをターゲットとした新規予防法、治療法の確立につながる可能性が高いと考える。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2018 2017

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

  • [Journal Article] High-fat diet-induced inflammation accelerates prostate cancer growth via IL6 signaling2018

    • Author(s)
      Takuji Hayashi, Kazutoshi Fujita, Satoshi Nojima, et al.
    • Journal Title

      Clinical Cancer Research

      Volume: 24 Issue: 17 Pages: 4309-4318

    • DOI

      10.1158/1078-0432.ccr-18-0106

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 前立腺癌モデルマウスにおいて、高脂肪食による局所での炎症・免疫反応はIL6シグナルを介して癌の進展を促進する2018

    • Author(s)
      林拓自、藤田和利、野島 聡、林裕次郎、神宮司健太郎、加藤大悟、河嶋厚成、氏家 剛、永原 啓、植村元秀、森井英一、辻川和丈、野々村祝夫
    • Organizer
      日本泌尿器科学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高脂肪食摂取は前立腺癌の進展を促進し、 局所の免疫細胞を変化させる2017

    • Author(s)
      林 拓自、 藤田和利 、石津谷 祐、王 聡、 山本致之 、 木内利郎、松崎恭介、川村憲彦、河嶋厚成、氏家 剛、 永原 啓、 植村元秀、 野島 聡、 森井英一 、 野々村 祝夫 1
    • Organizer
      泌尿器分子細胞研究会
    • Place of Presentation
      大分市
    • Year and Date
      2017-03-10
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi