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スキルス胃癌微小環境におけるExosomeの機能解析

Research Project

Project/Area Number 15J10473
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Tumor biology
Research InstitutionNational Cancer Center Japan

Principal Investigator

内藤 寛  国立研究開発法人国立がん研究センター, 研究所, 特別研究員(PD)

Project Period (FY) 2015-04-24 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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)
Keywordsスキルス胃癌 / Exosome / 癌関連線維芽細胞 / 癌間質相互作用 / CaF / microRNA / 浸潤
Outline of Annual Research Achievements

本年度は、① Exosomeに内包される分子の同定とその機能解析、② in vivoアッセイ系を用いた診断・治療法への応用について、以下の通り実施した。また、上記に加え、③ 胃癌細胞自身が分泌しているExosomeが線維芽細胞に与える影響についても着目し検討を行ったところ、非常に興味深い結果が得られた。
① ② まず、前年度に樹立できなかったExosome分泌が人工的に抑制された不死化CAF (CAF細胞株)の作製に取り掛かった。Exosome分泌に関連する遺伝子のsiRNAを用いた検討により、SMPD3およびTSAP6の発現の抑制によりCAF細胞株におけるExosome分泌の低下が見られた。現在、この両者の遺伝子発現に対するshRNAを搭載したベクターを用いて、恒常的Exosome産生が抑制されたCAF細胞株の作製を行っている。さらに、CAFから分泌されるExosomeに内包されるmiRNAであるmiR-125bがスキルス胃癌細胞株HSC-44PEの浸潤能に及ぼす影響について検討した。その結果、miR-125b mimicのトランスフェクションにより胃癌細胞株の浸潤能が有意に亢進した。このことから、CAF由来のExosome処理による胃癌細胞株浸潤は、ExosomeによるmiR-125bの授受が関わっている可能性が示唆された。
③ スキルス胃癌高腹膜播種転移株である44As3細胞および低転移株であるHSC-44PEが胃線維芽細胞に与える影響について検討した結果、i) 44As3はHSC-44PEより胃線維芽細胞をCAF様の形質に転換させる能力が高いこと、ii) CAFの機能的不均一性を生み出すこと、iii) これを44As3由来のExosomeが誘導していることを明らかとした。さらに、ExosomeによるCAFの機能的不均一性がスキルス胃癌進展に寄与することを明らかとした。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (22 results)

All 2018 2017 2016 2015

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 5 results,  Acknowledgement Compliant: 2 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results)

  • [Journal Article] MicroRNA-125b expression and intrahepatic metastasis are predictors for early recurrence after hepatocellular carcinoma resection.2018

    • Author(s)
      1.Shimagaki T, Yoshizumi T, Harimoto N, Yoshio S, Naito Y, Yamamoto Y, Ochiya T, Yoshida Y, Kanto T, Maehara Y.
    • Journal Title

      Hepatology Research

      Volume: 48 Issue: 4 Pages: 313-321

    • DOI

      10.1111/hepr.12990

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of the novel 3' UTR sequences of human IL-21 mRNA as potential targets of miRNAs2017

    • Author(s)
      Enomoto Y., Takagi R., Naito Y., Kiniwa T., Tanaka Y., Hamada-Tsutsumi S., Kawano M., Matsushita S., Ochiya T., Miyajima A.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-9

    • DOI

      10.1038/s41598-017-07853-x

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] How cancer cells dictate their microenvironment: present roles of extracellular vesicles.2017

    • Author(s)
      Naito Y, Yoshioka Y, Yamamoto Y, Ochiya T.
    • Journal Title

      Cellular and Molecular Life Sciences

      Volume: 74 Issue: 4 Pages: 697-713

    • DOI

      10.1007/s00018-016-2346-3

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Transmission of HBV-DNA mediated by ceramide-triggered extracellular vesicles2016

    • Author(s)
      Takahiro Sanada, Yuichi Hirata, Yutaka Naito, Naoki Yamamoto, Yoshiaki Kikkawa, Yuji Ishida, Chihiro Yamasaki, Chise Tateno, Takahiro Ochiya, and *Michinori Kohara
    • Journal Title

      Cellular and Molecular Gastroenterology and Hepatology

      Volume: 3 Issue: 2 Pages: 272-283

    • DOI

      10.1016/j.jcmgh.2016.10.003

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Global, cancer-specific microRNA cluster hypomethylation was functionally associated with the development of non-B non-C hepatocellular carcinoma.2016

    • Author(s)
      Nojima M, Matsui T, Tamori A, Kubo S, Shirabe K, Kimura K, Shimada M, Utsunomiya T, Kondo Y, Iio E, Naito Y, Ochiya T, Tanaka Y.
    • Journal Title

      Molecular Cancer

      Volume: 15 Issue: 1 Pages: 31-31

    • DOI

      10.1186/s12943-016-0514-6

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fukutin, identified by the Escherichia coli ampicillin secretion trap (CAST) method, participates in tumor progression in gastric cancer.2016

    • Author(s)
      Oo HZ, Sentani K, Mukai S, Hattori T, Shinmei S, Goto K, Sakamoto N, Naito Y, Anami K, Trang PT, Yanagihara K, Oue N, Yasui W.
    • Journal Title

      Gastric Cancer

      Volume: 19 Issue: 2 Pages: 443-452

    • DOI

      10.1007/s10120-015-0511-2

    • NAID

      40020835493

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significance of miR-148a in Colorectal Neoplasia: Downregulation of miR-148a Contributes to the Carcinogenesis and Cell Invasion of Colorectal Cancer.2015

    • Author(s)
      Hibino Y, Sakamoto N, Naito Y, Goto K, Oo HZ, Sentani K, Hinoi T, Ohdan H, Oue N, Yasui W.
    • Journal Title

      Pathobiology

      Volume: 82 Issue: 5 Pages: 233-241

    • DOI

      10.1159/000438826

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristic miR-24 Expression in Gastric Cancers among Atomic Bomb Survivors.2015

    • Author(s)
      Naito Y, Oue N, Pham TT, Yamamoto M, Fujihara M, Ishida T, Mukai S, Sentani K, Sakamoto N, Hida E, Sasaki H, Yasui W.
    • Journal Title

      Pathobiology

      Volume: 82 Issue: 2 Pages: 68-75

    • DOI

      10.1159/000398809

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] がんの新規診断・治療標的としてのエクソソームの応用と展開2015

    • Author(s)
      内藤 寛、吉岡 祐亮、落谷 孝広
    • Journal Title

      癌と化学療法

      Volume: 42 Pages: 647-655

    • Related Report
      2015 Annual Research Report
  • [Journal Article] microRNAs and Hepatitis B.2015

    • Author(s)
      Naito Y, Tanaka Y, Ochiya T.
    • Journal Title

      microRNA: Medical Evidence, Advances in Experimental Medicine and Biology

      Volume: 888 Pages: 389-399

    • DOI

      10.1007/978-3-319-22671-2_19

    • ISBN
      9783319226705, 9783319226712
    • Related Report
      2015 Annual Research Report
  • [Presentation] Functional roles of CaF-derived extracellular vesicles in scirrhous type gastric cancer2017

    • Author(s)
      Yutaka Naito, Masakazu Yashiro, Kosei Hirakawa, Tohru Kiyono, Wataru Yasui and Takahiro Ochiya
    • Organizer
      Annual Meeting ISEV2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interaction between cancer and stromal cells through extracellular vesicles in diffuse-type gastric cancer2017

    • Author(s)
      Yutaka Naito, Yusuke Yamamoto, Yusuke Yoshioka, Masakazu Yashiro, Tohru Kiyono,Kosei Hirakawa, Wataru Yasui and Takahiro Ochiya
    • Organizer
      4th Japanese Society of Extracellular Vesicles (JSEV) meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] スキルス胃癌微小環境における細胞外小胞の機能解析2017

    • Author(s)
      内藤 寛、山本 雄介、吉岡 祐亮、八代 正和、清野 透、平川 弘聖、柳原 五吉、安井 弥、落谷 孝広
    • Organizer
      第76回日本癌学会学術総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] スキルス胃癌微小環境における癌関連線維芽細胞由来細胞外小胞の機能解析2016

    • Author(s)
      内藤 寛、八代 正和、清野 透、平川 弘聖、安井 弥、勝田 毅、落谷 孝広
    • Organizer
      第74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] スキルス胃癌癌関連線維芽細胞に由来する分泌型microRNAの機能解析2016

    • Author(s)
      内藤 寛、吉岡 祐亮、山本 雄介、八代 正和、清野 透、平川 弘聖、安井 弥、落谷 孝広
    • Organizer
      第8回日本RNAi研究会・第3回日本細胞外小胞学会
    • Place of Presentation
      グランドプリンスホテル広島 (広島県、広島市)
    • Year and Date
      2016-08-31
    • Related Report
      2016 Annual Research Report
  • [Presentation] Functional roles of CaF-derived extracellular vesicles in scirrhous type gastric cancer2016

    • Author(s)
      Yutaka Naito, Takahiro Ochiya
    • Organizer
      Keystone Symposia, Exosomes/Microvesicles: Novel Mechanisms of Cell-Cell Communication (E4)
    • Place of Presentation
      Keystone Resort, Keystone, Colorado USA
    • Year and Date
      2016-06-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Functional analysis of extracellular vesicles in scirrhous type gastric cancer microenvironment.2016

    • Author(s)
      Yutaka Naito, Masakazu Yashiro, Kosei Hirakawa, Toru Kiyono, Wataru Yasui and Takahiro Ochiya
    • Organizer
      International Society For Extracellular Vesicles (ISEV)2016. The Fifth International Meeting of ISEV.
    • Place of Presentation
      The Netherlands, Rotterdam
    • Year and Date
      2016-05-04
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Functional role of microRNA in scirrhous type gastric cancer microenvironment.2016

    • Author(s)
      Yutaka Naito
    • Organizer
      4th international Postgraduate Conference on Pharmaceutical Sciences 2016
    • Place of Presentation
      東京理科大学
    • Year and Date
      2016-02-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] スキルス胃癌微小環境における細胞外小胞の機能2015

    • Author(s)
      内藤 寛、八代 正和、平川 弘聖、安井 弥、落谷 孝広
    • Organizer
      第38回日本分子生物学会年会
    • Place of Presentation
      神戸
    • Year and Date
      2015-12-01
    • Related Report
      2015 Annual Research Report
  • [Presentation] スキルス胃癌微小環境における細胞外小胞の網羅的解析2015

    • Author(s)
      内藤 寛、八代 正和、平川 弘聖、安井 弥、落谷 孝広
    • Organizer
      第74回日本癌学会学術総会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-10-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] スキルス胃癌微小環境における分泌型microRNAの機能解析2015

    • Author(s)
      内藤 寛、八代 正和、平川 弘聖、安井 弥、落谷 孝広
    • Organizer
      第7回日本RNAi研究会・第2回日本細胞外小胞学会
    • Place of Presentation
      広島
    • Year and Date
      2015-08-26
    • Related Report
      2015 Annual Research Report
  • [Presentation] Functional analysis of extracellular vesicles as a novel regulatory agent of scirrhous type gastric cancer microenvironment.2015

    • Author(s)
      Yutaka Naito, Masakazu Yashiro, Kosei Hirakawa, Wataru Yasui, Takahiro Ochiya.
    • Organizer
      International Society For Extracellular Vesicles (ISEV) 2015
    • Place of Presentation
      America, Washington, D. C.
    • Year and Date
      2015-04-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research

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Published: 2015-11-26   Modified: 2024-03-26  

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