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DKK2 targeting therapy for cholangiocarcinoma found by exhausted gene analysis.

Research Project

Project/Area Number 19K18124
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionKumamoto University

Principal Investigator

NAKAGAWA Shigeki  熊本大学, 病院, 非常勤診療医師 (10594872)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords胆管癌 / DKK2 / 細胞周期 / 抗癌剤 / 腫瘍免疫 / 癌免疫
Outline of Research at the Start

近年の種々の癌種における治療成績の改善には化学療法・分子標的治療の進歩がその一翼を担っている。しかし、胆管癌においては依然として有効な化学療法は非常に限られており、有効な分子標的治療薬は皆無である。肝内・肝外胆管癌においては手術による根治切除が唯一の根治的な治療であるが、根治切除後の予後も非常に厳しい状況にあり、新しい化学療法の開発が不可欠である。

Outline of Final Research Achievements

Surgery is the only treatment for the cure of cholangiocarcinoma, but the prognosis after surgery is still poor. We search the new therapeutic target from the exhaustive analysis of cholangiocarcinoma gene expression database. We found the DDK2 was strongly associated with poor prognosis of cholangiocarcinoma patients and clarify the mechanism haw DKK2 works in cholangiocarcinoma. DDK2 inactivate the CD8 positive T cells by blocking the WNT signal, and help the cancer cells gain the immune tolerance.

Academic Significance and Societal Importance of the Research Achievements

今回の研究において、抗がん剤の選択肢の少ない胆管癌において治療の標的となる遺伝子、DKK2を発見した。更にその遺伝子の、胆管癌における働きを明らかにしたところ、免疫細胞のWNTシグナルという細胞増殖シグナルを抑えて腫瘍免疫を抑制することで、癌細胞を活性化している事が明らかとなった。今後研究を重ね、抗がん剤として実用化される事が期待される。

Report

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

    (2 results)

All 2021

All Journal Article (2 results) (of which Peer Reviewed: 2 results)

  • [Journal Article] High ARHGEF2 (GEF-H1) Expression is Associated with Poor Prognosis Via Cell Cycle Regulation in Patients with Pancreatic Cancer2021

    • Author(s)
      Nakao Yosuke、Nakagawa Shigeki、Yamashita Yo-ichi、Umezaki Naoki、Okamoto Yuya、Ogata Yoko、Yasuda-Yoshihara Noriko、Itoyama Rumi、Yusa Toshihiko、Yamashita Kohei、Miyata Tatsunori、Okabe Hirohisa、Hayashi Hiromitsu、Imai Katsunori、Baba Hideo
    • Journal Title

      Annals of Surgical Oncology

      Volume: - Issue: 8 Pages: 4733-4743

    • DOI

      10.1245/s10434-020-09383-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Four gene intrahepatic metastasis-risk signature predicts hepatocellular carcinoma malignant potential and early recurrence from intrahepatic metastasis2021

    • Author(s)
      Nakagawa Shigeki、Yamashita Yo-ichi、Umezaki Naoki、Yamao Takanobu、Kaida Takayoshi、Hiyoshi Yukiharu、Mima Kosuke、Okabe Hirohisa、Hayashi Hiromitsu、Imai Katsunori、Chikamoto Akira、Baba Hideo
    • Journal Title

      Surgery

      Volume: 169 Issue: 4 Pages: 903-910

    • DOI

      10.1016/j.surg.2020.09.032

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed

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

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