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Acquisition mechanisms of malignant phenotypes on cancer cells under the microenvironmental stress.

Research Project

Project/Area Number 26870600
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Pathological medical chemistry
Tumor biology
Research InstitutionTokai University

Principal Investigator

ENDO Hitoshi  東海大学, 医学部, 講師 (10550551)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsがん微小環境 / 低栄養 / 酸化ストレス / オートファジー / 浸潤 / がんの微小環境
Outline of Final Research Achievements

Malignant tumors are exposed to microenvironments that are characterized by low levels of nutrients because the tumors tend to outgrow the existing vasculature. Therefore, cancer cells must adapt and escape these severe microenvironments to favorable growth conditions.
In the current study, we found that LKB1/AMPK signaling pathway, a master regulator of metabolic homeostasis, is activated by glucose deprivation. Activation of LKB1/AMPK induces a transcription factor Nrf2 in the nucleus, and LKB1/AMPK-mediated Nrf2 expression is involved in the regulation of oxidative stress under glucose starved conditions. We also observed that cancer cell migration and invasion ability were enhanced due to the reduction in glucose concentration in culture medium and was completely diminished by knockdown of LKB1 or AMPK. These results suggested that the activation of LKB1/AMPK is not only contributed to adaptation to severe microenvironment but also promotes cancer progression.

Report

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

    (15 results)

All 2016 2015 2014 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (12 results) Remarks (1 results)

  • [Journal Article] ラットNASHモデルにおいて酪酸菌の投与が腸内細菌叢に与える影響2015

    • Author(s)
      小林 典子、 田中 守、遠藤 整、渡辺 哲
    • Journal Title

      消化と吸収

      Volume: 37 Pages: 92-96

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Liposome-encapsulated hemoglobin improves learning ability in Tokai high-avoider rats after total brain ischemia and reperfusion.2014

    • Author(s)
      Kawaguchi AT, Endo H, Aikawa H, Yamano M, Kawaguchi Y, Haida M, Watanabe T.
    • Journal Title

      Artif Organs

      Volume: 38 Issue: 8 Pages: 667-674

    • DOI

      10.1111/aor.12352

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Metabolic stress promotes cancer cell invasion and migration by activating LKB1/AMPK-dependent mechanisms2016

    • Author(s)
      遠藤整、大和田賢、根津貴洋、志田侑香里、立道昌幸
    • Organizer
      第75回日本癌学会学術総会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-10-06
    • Related Report
      2016 Annual Research Report
  • [Presentation] 飢餓環境における酸化ストレス応答はがん細胞の悪性形質に関与する2016

    • Author(s)
      遠藤整、大和田賢、根津貴洋、志田侑香里、立道昌幸
    • Organizer
      第69回日本酸化ストレス学会
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2016-08-30
    • Related Report
      2016 Annual Research Report
  • [Presentation] LKB1/AMPK regulates MMP-9 expression to adapt against glucose-starvation stress.2015

    • Author(s)
      Hitoshi Endo, Takahiro Nezu, Masayuki Tatemichi
    • Organizer
      第74回日本癌学会学術総会
    • Place of Presentation
      名古屋国際会議場( 愛知県名古屋市)
    • Year and Date
      2015-10-08
    • Related Report
      2015 Research-status Report
  • [Presentation] LKB1/AMPK regulates autophagy-mediated MMP-9 expression to promote cancer cell development during microenvironmental stress.2015

    • Author(s)
      Hitoshi Endo, Takahiro Nezu, Masayuki Tatemichi
    • Organizer
      10th World Congress for Microcirculation
    • Place of Presentation
      国立京都国際会館( 京都府京都市)
    • Year and Date
      2015-09-25
    • Related Report
      2015 Research-status Report
  • [Presentation] アセタミプリド曝露による精巣内の遺伝子へ影響-免疫撹乱的視点から-2015

    • Author(s)
      寺山隼人、遠藤整、金沢輝久、立道昌幸、坂部貢
    • Organizer
      第22回日本免疫毒性学会学術年会
    • Place of Presentation
      京都大学百周年時計台記念館( 京都府京都市)
    • Year and Date
      2015-09-10
    • Related Report
      2015 Research-status Report
  • [Presentation] ネオニコチノイド系アセタミプリド曝露による病態生理 ‐精巣毒性を中心に‐2015

    • Author(s)
      寺山隼人、遠藤整、金沢輝久、田村摩衣子、古谷祐生子、坂部貢
    • Organizer
      第25回日本病態生理学会大会
    • Place of Presentation
      愛媛大学城北キャンパス( 愛媛県松山市)
    • Year and Date
      2015-07-31
    • Related Report
      2015 Research-status Report
  • [Presentation] 低栄養環境適応機構を介したがん細胞の進展機序の解明2015

    • Author(s)
      遠藤整、根津貴洋、立道昌幸
    • Organizer
      第3回がんと代謝研究会
    • Place of Presentation
      石川県立音楽堂交流ホール( 石川県金沢市)
    • Year and Date
      2015-07-16
    • Related Report
      2015 Research-status Report
  • [Presentation] 塩化トリブチルスズに胎児期~発達期に曝露されたメスのTokai High Avoiderラットにおける記憶学習能力の抑制 シドマン電撃回避試験による検討2015

    • Author(s)
      角田正史、長谷川卓弥、菅谷ちえ美、杉浦由美子、堀口兵剛、木戸尊將、柳澤裕之、遠藤整、渡辺哲
    • Organizer
      第26回日本微量元素学会学術集会
    • Place of Presentation
      北海道大学 大学院 地球環境科学研究院 大講堂( 北海道札幌市)
    • Year and Date
      2015-07-04
    • Related Report
      2015 Research-status Report
  • [Presentation] トリブチルスズに経胎盤・経母乳及び離乳後経口曝露されたメスのTokai High Avoiderラットのオープンフィールド試験2015

    • Author(s)
      角田正史、杉浦由美子、宮島江里子、木戸尊將、細川まゆ子、堀口兵剛、遠藤整、渡辺哲
    • Organizer
      第88回日本産業衛生学会
    • Place of Presentation
      グランフロント大阪( 大阪府大阪市)
    • Year and Date
      2015-05-13
    • Related Report
      2015 Research-status Report
  • [Presentation] がん細胞の低栄養環境適応と進展メカニズムの解明2015

    • Author(s)
      遠藤整、根津貴洋、渡辺哲、立道昌幸
    • Organizer
      第14回分子予防環境医学研究会
    • Place of Presentation
      大阪
    • Year and Date
      2015-02-13 – 2015-02-14
    • Related Report
      2014 Research-status Report
  • [Presentation] ネオニコチノイド系アセタミプリド曝露によるマウス精巣および脳への影響2014

    • Author(s)
      寺山 隼人, 金沢 輝久, 田村 摩衣子, 遠藤 整, 坂部 貢
    • Organizer
      第17回環境ホルモン学会
    • Place of Presentation
      東京
    • Year and Date
      2014-12-09
    • Related Report
      2014 Research-status Report
  • [Presentation] ラットNASHモデルにおける酪酸菌投与が腸内細菌叢に与える影響2014

    • Author(s)
      小林 典子, 田中 守, 遠藤 整, 渡辺 哲
    • Organizer
      第45回日本消化吸収学会総会
    • Place of Presentation
      東京
    • Year and Date
      2014-11-22
    • Related Report
      2014 Research-status Report
  • [Remarks] 東海大学医学部基盤診療学系 衛生学公衆衛生学

    • URL

      http://health.med.u-tokai.ac.jp/index.html

    • Related Report
      2016 Annual Research Report 2015 Research-status Report

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

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