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Development of novel nucleic acid compounds for pancreatic cancer which inhibit the invasiveness and metastasis

Research Project

Project/Area Number 20K08359
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionKochi University

Principal Investigator

Taniuchi Keisuke  高知大学, 教育研究部医療学系臨床医学部門, 准教授 (50626869)

Co-Investigator(Kenkyū-buntansha) 和田 猛  東京理科大学, 薬学部生命創薬科学科, 教授 (90240548)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords膵癌 / 核酸化合物 / デリバリーシステム / 核酸治療 / 新規創薬 / 浸潤・転移 / 核酸製剤
Outline of Research at the Start

膵癌細胞の葉状仮足に局在し、浸潤・転移に関わるARHGEF4とLAMTOR2を独自の基礎研究により同定した。我々は、細胞実験によりARHGEF4とLAMTOR2をほぼ100%ノックダウンすることのできるRNA干渉の一つであるsmall interfering RNA(siRNA)の配列をそれぞれ同定した。本研究では、膵癌モデルマウスを用いてリガンド+カチオン性ペプチドを付加したARHGEF4とLAMTOR2のメッセンジャーRNA(mRNA)を標的とするsiRNAの浸潤・転移抑制効果を解析する。

Outline of Final Research Achievements

We identified ARHGEF4 and LAMTOR2, which are localized in the lamellipodia of pancreatic cancer cells and involved in the invasiveness and metastasis. Small interfering RNA (siRNA) compounds against ARHGEF4 and LAMTOR2 to which ligands and cationic peptides were added were injected into human pancreatic cancer organoid-implanted mice through the tail vein. As a result, each siRNA compound was delivered to the pancreatic cancer tissue. In the siRNA-administered group targeting ARHGEF4 or LAMTOR2, pancreatic cancer tissue growth was suppressed compared to the control siRNA-administered group and the gemcitabine-administered group. There was no inflammation or disturbance of tissue architecture in the liver, kidney, or lung of the mouse.

Academic Significance and Societal Importance of the Research Achievements

k-ras変異などの膵癌細胞の増殖機序に関する基礎研究の論文発表は多い。しかし、同定された標的分子が膵癌創薬に結びついた例はなく、膵癌研究から誕生した分子標的薬は存在しない。研究代表者らは、膵癌の最大の特徴である「豊富な癌間質を伴う癌細胞の浸潤」を抑制することができれば新薬を開発できるのではないかと考えた。
siRNAのデリバリーシステムとして独自に考案・合成し、siRNA化合物を合成した点が本研究の創造的なところである。本研究の核酸化合物が膵癌細胞の浸潤・転移を抑制することを示すことができれば、世界初の膵癌に対する核酸製剤開発に結び付く可能性がある。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (22 results)

All 2022 2021 2020 2019

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (9 results) (of which Invited: 1 results) Patent(Industrial Property Rights) (6 results) (of which Overseas: 2 results)

  • [Journal Article] Establishment of a mouse model of pancreatic cancer using human pancreatic cancer cell line S2-013-derived organoid.2022

    • Author(s)
      Tanaka C, Furihata K, Naganuma S, Ogasawara M, Yoshioka R, Taniguchi H, Furihata M, Taniuchi K
    • Journal Title

      Human cell.

      Volume: 35(2) Issue: 2 Pages: 735-744

    • DOI

      10.1007/s13577-022-00684-7

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upregulation of PODXL and ITGB1 in pancreatic cancer tissues preoperatively obtained by EUS-FNAB correlates with unfavorable prognosis of postoperative pancreatic cancer patients.2022

    • Author(s)
      Taniuchi K, Ueno M, Yokose T, Sakaguchi M, Yoshioka R, Ogasawara M, Kosaki T, Naganuma S, Furihata M
    • Journal Title

      PLoS One.

      Volume: 17(3) Issue: 3 Pages: e0265172-e0265172

    • DOI

      10.1371/journal.pone.0265172

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Solid-Phase Synthesis of Boranophosphate/Phosphorothioate/Phosphate Chimeric Oligonucleotides and Their Potential as Antisense Oligonucleotides.2022

    • Author(s)
      Takahashi Y, Sato K, Wada T.
    • Journal Title

      J Org Chem

      Volume: 87 Issue: 6 Pages: 3895-3909

    • DOI

      10.1021/acs.joc.1c01812

    • Related Report
      2021 Research-status Report
  • [Journal Article] Measurement of PODXL and SCGB1D2 for detecting intraductal papillary mucinous neoplasm2021

    • Author(s)
      谷内 恵介、岡林 雄大、阪口 昌彦、岩田 純
    • Journal Title

      Nippon Shokakibyo Gakkai Zasshi

      Volume: 118 Issue: 3 Pages: 235-244

    • DOI

      10.11405/nisshoshi.118.235

    • NAID

      130007996133

    • ISSN
      0446-6586, 1349-7693
    • Year and Date
      2021-03-10
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 10mm以下膵癌診断における膵癌細胞エクソソーム由来RNA検索の可能性2020

    • Author(s)
      谷内恵介
    • Journal Title

      胆と膵

      Volume: 41 Pages: 401-407

    • Related Report
      2020 Research-status Report
  • [Journal Article] 自己免疫性膵炎の病因・病態:自然免疫の視点から2020

    • Author(s)
      内田一茂、常風友梨、谷内恵介、耕崎拓大、池浦司、岡崎和一
    • Journal Title

      胆と膵

      Volume: 41 Pages: 951-955

    • Related Report
      2020 Research-status Report
  • [Journal Article] KHSRP-bound small nucleolar RNAs associate with promotion of cell invasiveness and metastasis of pancreatic cancer.2019

    • Author(s)
      Taniuchi K, Ogasawara M.
    • Journal Title

      Oncotarget

      Volume: 11 Issue: 2 Pages: 131-147

    • DOI

      10.18632/oncotarget.27413

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 術前の段階で術後予後予測に有用である膵癌に対する予後予測マーカーの同定.2022

    • Author(s)
      谷内恵介、降幡睦夫.
    • Organizer
      第108回日本消化器病学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 進行膵癌に対する核酸化合物の認可承認を目指した実用化研究.2022

    • Author(s)
      谷内恵介、檜山和寛、降幡睦夫.
    • Organizer
      第30回日本消化器関連学会週間(JDDW)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 潤抑制効果を持つ核酸製剤の膵癌への実用化研究2020

    • Author(s)
      谷内恵介、廣瀬享、内田一茂
    • Organizer
      第106回日本消化器病学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 膵癌オルガノイドを用いた新規モデルマウスによる膵癌早期診断マーカー同定に向けた戦略2020

    • Author(s)
      谷内恵介、谷口英樹、内田一茂
    • Organizer
      第106回日本消化器病学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 術前に膵癌予後予測を行うことにより、術前化学療法を行うべき症例を絞り込めるか?2020

    • Author(s)
      谷内恵介、上野誠、内田一茂
    • Organizer
      第106回日本消化器病学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 膵癌細胞の運動・浸潤に関わるWASF2の同定2020

    • Author(s)
      常風友梨、谷内恵介、長沼誠二、内田一茂、降幡睦夫
    • Organizer
      第38回日本ヒト細胞学会
    • Related Report
      2020 Research-status Report
  • [Presentation] ヒト膵癌オルガノイド移植マウスの病理組織学的検討2020

    • Author(s)
      谷内恵介、田中千遥、長沼誠二、常風友梨、内田一茂、降幡睦夫、谷口英樹
    • Organizer
      第38回日本ヒト細胞学会
    • Related Report
      2020 Research-status Report
  • [Presentation] 新規治療薬の承認を目指した膵癌研究2020

    • Author(s)
      谷内恵介
    • Organizer
      第38回日本ヒト細胞学会総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 葉酸結合型カチオン性オリゴペプチドを用いた膵癌特異的なsiRNAのデリバリー2020

    • Author(s)
      佐藤一樹、高木一憲、原倫太朗、谷内恵介、和田猛
    • Organizer
      第69回高分子討論会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 膵がん及び膵管内乳頭粘液性腫瘍のマーカー2021

    • Inventor(s)
      谷内恵介
    • Industrial Property Rights Holder
      谷内恵介
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-115619
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] Marker for pancreatic cancer and intraductal papillary mucinous neoplasms2021

    • Inventor(s)
      Keisuke Taniuchi
    • Industrial Property Rights Holder
      Keisuke Taniuchi
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Acquisition Date
      2021
    • Related Report
      2021 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] Marker for pancreatic cancer and intraductal papillary mucinous neoplasms2020

    • Inventor(s)
      谷内恵介
    • Industrial Property Rights Holder
      高知大学
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Acquisition Date
      2022
    • Related Report
      2022 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] ヒト膵癌オルガノイドを用いたマウスモデルの樹立2020

    • Inventor(s)
      谷内恵介、谷口英樹
    • Industrial Property Rights Holder
      谷内恵介、谷口英樹
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-078771
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 膵癌治療剤2020

    • Inventor(s)
      谷内恵介
    • Industrial Property Rights Holder
      谷内恵介
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-100937
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 膵がん診断キット2020

    • Inventor(s)
      谷内恵介
    • Industrial Property Rights Holder
      谷内恵介
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-174333
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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