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Regulation of chemo- and radio-resistance through LPA receptor-mediated signaling in cancer cells.

Research Project

Project/Area Number 21K07109
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionKindai University

Principal Investigator

Tsujiuchi Toshifumi  近畿大学, 理工学部, 教授 (10254492)

Co-Investigator(Kenkyū-buntansha) 池田 裕子  近畿大学, 理工学部, 助教 (90806465)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
KeywordsLPA / LPA受容体 / 抗がん剤抵抗性 / 放射線感受性 / がん細胞 / 抗がん剤 / 放射線照射 / リゾフォスファチジン酸 / 放射線
Outline of Research at the Start

がん細胞の生物学的機能の調節にリゾフォスファチジン酸(LPA)受容体シグナルが深く関与することが報告されている。本研究は、がん細胞の抗がん剤・放射線感受性制御におけるLPA受容体(LPA1-LPA6)の分子機構を解明し、LPA受容体シグナルを標的とした効果的ながん薬物療法および放射線治療開発にむけた基礎的研究である。各種がん培養細胞を用いて、抗がん剤処理と放射線照射を行ったがん細胞におけるLPA受容体発現レベルと細胞機能を解析することで、標的LPA受容体シグナルを同定するとともに抗がん剤抵抗性およびDNA損傷・修復に関わる細胞内分子との相互作用を明らかにする。

Outline of Final Research Achievements

Lysophosphatidic acid (LPA) is a biological lipid mediator that consists of a fatty acid, glycerol and a phosphate. LPA exhibits a variety of cellular responses through binding to specific G protein-coupled LPA receptors. Six subtypes of LPA receptors (LPA1-LPA6) have been classified so far. LPA receptor-mediated signaling contributes to the promotion of tumor progression, including cell growth, invasion, metastasis and angiogenesis. This study aimed to investigate the roles of LPA receptors in the acquisition of chemo- and radio-resistance in cancer cells, using LPA receptor knockdown cells. We indicated that the individual LPA receptors positively or negatively regulate the cell viability to anticancer drugs and X-ray irradiation of cancer cells. These results suggest that LPA receptor-mediated signaling plays an important role in the regulation of chemo- and radio-resistance in cancer cells.

Academic Significance and Societal Importance of the Research Achievements

がん薬物療法ならびに放射線治療は、外科的切除とともにがん治療における基本的なアプローチである。さらに広範囲な浸潤・転移をきたした進行症例に対して抗がん剤・放射線治療は限られた選択肢であり、がん細胞の抗がん剤・放射線抵抗性獲得機序の解明は、がん患者の予後改善と長期延命にむけた重要な研究課題である。本研究における、がん細胞の抗がん剤・放射線抵抗性にLPA受容体を介する細胞内シグナルの活性化が制御するという知見は、LPA受容体を標的分子とする効果的な薬物療法ならびに放射線治療法の開発への基礎的情報源となるとともに、今後さらなる詳細な解析を推進する価値を有するものでもある。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (7 results)

  • [Journal Article] Revisiting 'Hallmarks of Cancer' In Sarcomas2024

    • Author(s)
      Honoki Kanya、Tsujiuchi Toshifumi、Kishi Shingo、Kuniyasu Hiroki
    • Journal Title

      Journal of Cancer

      Volume: 15 Issue: 7 Pages: 1786-1804

    • DOI

      10.7150/jca.92844

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lysophosphatidic acid (LPA) receptor-mediated signaling and cellular responses to anticancer drugs and radiation of cancer cells2024

    • Author(s)
      Ikeda Hiroko、Takai Miwa、Tsujiuchi Toshifumi
    • Journal Title

      Advances in Biological Regulation

      Volume: 92 Pages: 101029-101029

    • DOI

      10.1016/j.jbior.2024.101029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Roles of lysophosphatidic acid (LPA) receptor-mediated signaling in cellular functions modulated by endothelial cells in pancreatic cancer cells under hypoxic conditions2024

    • Author(s)
      Takai Miwa、Yashiro Narumi、Hara Koki、Amano Yuka、Yamamoto Mao、Tsujiuchi Toshifumi
    • Journal Title

      Pathology - Research and Practice

      Volume: 255 Pages: 155192-155192

    • DOI

      10.1016/j.prp.2024.155192

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of free fatty acid receptor (FFAR) signaling on the modulation of cancer cell functions under hypoxic conditions2024

    • Author(s)
      Yashiro Narumi、Takai Miwa、Yamamoto Mao、Amano Yuka、Hara Koki、Tsujiuchi Toshifumi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 699 Pages: 149554-149554

    • DOI

      10.1016/j.bbrc.2024.149554

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Roles of lysophosphatidic acid (LPA) receptor-2 (LPA2) in the regulation of cellular responses induced by X-ray irradiation and hydrogen peroxide in pancreatic cancer cells2023

    • Author(s)
      Okuda Aya、Takai Miwa、Kurisu Rio、Takamoto Miyu、Ikeda Hiroko、Tsujiuchi Toshifumi
    • Journal Title

      International Journal of Radiation Biology

      Volume: 99 Issue: 12 Pages: 1925-1933

    • DOI

      10.1080/09553002.2023.2241890

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of LPA receptor-mediated signaling on the modulation of cellular functions of pancreatic cancer cells cultured in fibroblast supernatants under hypoxic conditions2023

    • Author(s)
      Takai Miwa、Okuda Aya、Amano Yuka、Yashiro Narumi、Hara Koki、Yamamoto Mao、Tsujiuchi Toshifumi
    • Journal Title

      Journal of Bioenergetics and Biomembranes

      Volume: 55 Issue: 3 Pages: 169-177

    • DOI

      10.1007/s10863-023-09969-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LPA receptor-mediated signaling regulates cell motility and survival to anticancer drug of pancreatic cancer cells under glucose-deprived and hypoxic conditions2023

    • Author(s)
      Takai Miwa、Takauchi Minori、Kuribayashi Mako、Tsujiuchi Toshifumi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 661 Pages: 21-27

    • DOI

      10.1016/j.bbrc.2023.04.036

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Induction of lysophosphatidic acid (LPA) receptor-mediated signaling regulates cell motility and survival to anticancer drugs in cancer cells treated with hydrogen peroxide2023

    • Author(s)
      Takai Miwa、Takamoto Miyu、Amano Yuka、Yamamoto Mao、Hara Koki、Yashiro Narumi、Tsujiuchi Toshifumi
    • Journal Title

      Advances in Biological Regulation

      Volume: 89 Pages: 100978-100978

    • DOI

      10.1016/j.jbior.2023.100978

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of free fatty acid receptor-2 (FFAR2)-mediated signaling on the regulation of cellular functions in osteosarcoma cells2023

    • Author(s)
      Kurisu Rio、Takai Miwa、Takamoto Miyu、Tsujiuchi Toshifumi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 646 Pages: 56-62

    • DOI

      10.1016/j.bbrc.2023.01.067

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Oleic acid stimulates cell proliferation and BRD4?L-MYC-dependent glucose transporter transcription through PPARα activation in ovarian cancer cells2023

    • Author(s)
      Kado Tsuyoshi、Kusakari Naoki、Tamaki Takeru、Murota Kaeko、Tsujiuchi Toshifumi、Fukushima Nobuyuki
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 657 Pages: 24-34

    • DOI

      10.1016/j.bbrc.2023.03.051

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of lysophosphatidic acid (LPA) signaling via LPA receptors on cellular functions associated with ATP reduction in osteosarcoma cells treated with ethidium bromide2022

    • Author(s)
      Kurisu Rio、Takamoto Miyu、Minami Kanako、Ueda Nanami、Yamada Marina、Shima Nanami、Otani Tomoka、Sakai Yuma、Kondo Daisuke、Tsujiuchi Toshifumi
    • Journal Title

      Journal of Bioenergetics and Biomembranes

      Volume: 54 Issue: 2 Pages: 109-117

    • DOI

      10.1007/s10863-022-09933-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 低酸素環境下における膵がん細胞の細胞機能制御におけるLPA受容体シグナルの役割2023

    • Author(s)
      高井美和、辻内俊文
    • Organizer
      第82回日本癌学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] リゾフォスファチジン酸受容体2を介する過酸化水素処理による骨肉腫細胞の機能解析2022

    • Author(s)
      栗栖梨緒、高本美友、池田裕子、辻内俊文
    • Organizer
      第81回日本癌学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 過酸化水素処理により誘発される大腸がん細胞の細胞機能調節におけるLPA受容体の役割2022

    • Author(s)
      高本美友、栗栖梨緒、池田裕子、辻内俊文
    • Organizer
      第81回日本癌学会
    • Related Report
      2022 Research-status Report
  • [Presentation] 大腸がん細胞の抗がん剤抵抗性制御におけるLPA受容体-4(LPA4)シグナルの抑制効果2021

    • Author(s)
      高本美友、栗栖梨緒、上田七海、池田裕子、辻内俊文
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 抗がん剤処理大腸がん細胞の細胞生存率におけるLPA受容体-6(LPA6)シグナルの調節機構2021

    • Author(s)
      栗栖梨緒、高本美友、上田七海、池田裕子、辻内俊文
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 間質細胞による肺がん細胞の細胞機能促進にけるrリゾフォスファチジン酸受容体-12(LPA2)シグナルの役割2021

    • Author(s)
      上田七海、高本美友、栗栖梨緒、池田裕子、辻内俊文
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 骨肉腫細胞における化学療法抵抗性の増強に対するLPA2を介したリゾフォスファチジン酸(LPA)シグナル伝達の効果2021

    • Author(s)
      池田裕子、上田七海、栗栖梨緒、高本美友、辻内俊文
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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