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2013 Fiscal Year Annual Research Report

腹腔内転移のバイオイメージングと抑制物質の分子デザイン

Research Project

Project/Area Number 23310163
Research InstitutionAichi Medical University

Principal Investigator

梅澤 一夫  愛知医科大学, 医学部, 教授 (70114402)

Co-Investigator(Kenkyū-buntansha) 清水 史郎  慶應義塾大学, 理工学部, 准教授 (30312268)
芳賀 早苗  北海道大学, その他の研究科, 研究員 (60706505)
Project Period (FY) 2011-04-01 – 2014-03-31
Keywordsmigracin / Exo-ene EQ / DHMEQ / pyrapaxilline / 卵巣がん / 腹腔内転移 / 遊走 / 浸潤
Research Abstract

がん細胞の浸潤抑制する新規化合物を天然から探索し、2つの新規化合物を発見した。すなわち、がん細胞の遊走を抑制する化合物を微生物培養液から探索したところ、放線菌から2つの新規化合物が単離され、migracin AおよびBと命名した。migracin AとBは同等の活性を示し、乳がんMDA-MB-231、肺腺がんA594、線維肉腫HT-1080細胞のwound healing法における遊走を阻害した。そしてmigracin Aは卵巣がんES-2細胞の遊走とマトリゲル・チャンバーを用いた浸潤を、毒性を全く示さない濃度で阻害した。このように新しい卵巣がん浸潤抑制物質を発見した。一方、H24年度に分子デザインして合成したepoxideのないDHMEQの誘導体Exo-ene EQが十分な量があり、この化合物はHT1080細胞の浸潤を抑制し、さらに、卵巣がんES-2の浸潤も抑制した。最近、卵巣がん細胞がIL-8等を産生して抗がん免疫を抑制する共同研究による実験系で、DHMEQは免疫抑制を解除することが培養細胞系および動物実験でみられた。(以上、梅澤)NF-kappa B阻害剤DHMEQのようにがん細胞の浸潤を抑制する抗炎症物質を微生物培養液から探索した。マクロファージのNO産生を指標に阻害剤を探索し、カビの培養液から新規物質pirapaxillineを見出した。(梅澤、清水)一方、本課題の腹腔内転移のバイオイメージングは膵臓がん細胞を用いて行われ、DHMEQはin vivoで明らかな抑制効果を示した。(芳賀、梅澤)以上のように、H25年度は新しい浸潤抑制物質が複数発見し、バイオイメージングを用いた腹腔内転移の動物実験でDHMEQの抑制効果を示した。Exo-ene EQ以外の結果は論文で発表している。

Current Status of Research Progress
Reason

25年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

25年度が最終年度であるため、記入しない。

  • Research Products

    (24 results)

All 2014 2013 Other

All Journal Article (14 results) (of which Peer Reviewed: 12 results) Presentation (9 results) (of which Invited: 2 results) Remarks (1 results)

  • [Journal Article] Activation of Akt involves resistance to NF-κB inhibition and abrogation of both triggers synergistic apoptosis in lung adenocarcinoma cells2014

    • Author(s)
      T. Togano, M. Watanabe, K. Itoh, K. Umezawa, N. Masuda, M. Higashihara and R. Horie
    • Journal Title

      Lung Cancer

      Volume: 83 Pages: 139-145

    • Peer Reviewed
  • [Journal Article] Combined inhibition of NF-κB and Bcl-2 triggers synergistic reduction of viability and induces apoptosis in melanoma cells2014

    • Author(s)
      M. Watanabe, K. Umezawa, M. Higashihara and R. Horie
    • Journal Title

      Oncology Res.

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] The NF-κB inhibitor DHMEQ decreases survival factors, overcomes the protective activity of microenvironment and synergizes with chemotherapy agents in classical Hodgkin lymphoma2014

    • Author(s)
      M. Celegato, C. Borghese, K. Umezawa, N. Casagrande, A. Colombatti, A. Carbone, and D. Aldinucci
    • Journal Title

      Cancer Letters

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] Isolation of a novel paxilline analog pyrapaxilline from fungus that inhibits LPS-induced NO production2014

    • Author(s)
      C. Matsui, Y. Ikeda, H. Iinuma, N. Kushida, T. Kunisada, S. Simizu and K. Umezawa
    • Journal Title

      J. Antibiotics

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] Anoikis induction and inhibition of peritoneal metastasis of pancreatic cancer cells by a nuclear factor-kappa B inhibitor, (-)-DHMEQ2014

    • Author(s)
      M. Sato, K. Nakanishi, S. Haga, M. Fujiyoshi, M. Baba, K. Mino, Yimin, H. Niwa, H. Yokoo, K. Umezawa, Y. Ohmiya, T. Kamiyama, S. Todo, A. Taketomi and M. Ozaki
    • Journal Title

      Oncology Res.

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] Immunosuppression through constitutively activated NF-κB signaling in human ovarian cancer and its reversal by a NF-κB inhibitor2014

    • Author(s)
      H. Nishio, T. Yaguchi, J. Sugiyama, H. Sumimoto, K. Umezawa, T. Iwata, N. Susumu, T.Fujii, N. Kawamura, A. Kobayashi, J-H Park, D. Aoki, Y. Kawakami
    • Journal Title

      British J. Cancer

      Volume: 未定 Pages: 未定

    • Peer Reviewed
  • [Journal Article] Inhibition of NO-induced β-cell death by novel NF-κB inhibitor (-)-DHMEQ via activation of Nrf2-ARE pathway2013

    • Author(s)
      A. Ogasawara, S. Simizu, A. Ito, T. Kawai, Y. Saisho, I. Takei and K. Umezawa
    • Journal Title

      Biochem. Biophys. Res. Commun.

      Volume: 433 Pages: 181-187

    • Peer Reviewed
  • [Journal Article] Combined effect of dehydroxymethylepoxyquinomicin and gemcitabine in a mouse model of liver metastasis of pancreatic cancer2013

    • Author(s)
      K. Suzuki, K. Aiura, S. Matsuda, O. Itano, O. Takeuchi, K. Umezawa, and Y. Kitagawa
    • Journal Title

      Clinical & Experimental Metastasis

      Volume: 30 Pages: 381-392

    • Peer Reviewed
  • [Journal Article] Migracins A and B, new inhibitors of cancer cell migration, produced by Streptomyces sp2013

    • Author(s)
      Y. Arai, H. Iinuma, Y. Ikeda, M. Igarashi, K. Hatano, N. Kinoshita, T. Ukaji, S. Simizu and K. Umezawa
    • Journal Title

      J. Antibiot.

      Volume: 66 Pages: 225 to 230

    • Peer Reviewed
  • [Journal Article] Peritoneal NF-κB as a possible molecular target for suppression of various cancers and inflammation. (Review)2013

    • Author(s)
      K. Umezawa
    • Journal Title

      Forum of Immunopathological Diseases and Therapeutics

      Volume: 4 Pages: 63-77

  • [Journal Article] Pleiotropic potential of dehydroxymethylepoxyquinomicin for NF- κB suppression via reactive oxygen species and unfolded protein response2013

    • Author(s)
      S. Nakajima, H. Kato, L. Gu, S. Takahashi, H. Johno, K. Umezawa and M. Kitamura
    • Journal Title

      J. Immunol.

      Volume: 190 Pages: 6559-6569

    • Peer Reviewed
  • [Journal Article] p53 dysfunction precedes the activation of nuclear factor-κB during disease progression in mice expressing Tax, a human T-cell leukemia virus type 1 oncoprotein2013

    • Author(s)
      T. Ohsugi, T. Ishida, T. Shimasaki, S. Okada and K. Umezawa
    • Journal Title

      Carcinogenesis

      Volume: 34 Pages: 2129-2136

    • Peer Reviewed
  • [Journal Article] Synergistic effect of 5-azacytidine and NF-kappa B inhibitor DHMEQ on apoptosis induction in myeloid leukemia cells2013

    • Author(s)
      T. Togano, M. Nakashima, M. Watanabe, K. Umezawa, T. Watanabe, M. Higashihara and R. Horie
    • Journal Title

      Oncology Res.

      Volume: 20 Pages: 571-577

    • Peer Reviewed
  • [Journal Article] Inhibition of cancer cell invasion and metastasis by NF-kappa B inhibitors. (Review)2013

    • Author(s)
      T. Ukaji, S. Gantsev and K. Umezawa
    • Journal Title

      Creative Surgery and Oncology

      Volume: 3 Pages: 6-12

  • [Presentation] Anti-inflammatory and anticancer activities of novel NF-kappa B inhibitor DHMEQ2013

    • Author(s)
      Kazuo Umezawa
    • Organizer
      Eurasian Anticancer Conference
    • Place of Presentation
      Ufa, Russia
    • Year and Date
      20131122-20131123
    • Invited
  • [Presentation] Protection of β-cells from cell death by NF-κB inhibitor (-)-DHMEQ via activation of Nrf2-ARF pathway2013

    • Author(s)
      K. Umezawa and I. Takei
    • Organizer
      The 18th World Congress on Advances in Oncology, and 16th International Symposium on Molecular Medicine
    • Place of Presentation
      Crete, Greece
    • Year and Date
      20131010-20131012
    • Invited
  • [Presentation] Molecular design of epoxide-free (-)-DHMEQ analog that inhibits NF-κB and cytokine secretions2013

    • Author(s)
      K. Sidthipong, S. Kobayashi and K. Umezawa
    • Organizer
      The 18th World Congress on Advances in Oncology, and 16th International Symposium on Molecular Medicine
    • Place of Presentation
      Crete, Greece
    • Year and Date
      20131010-20131012
  • [Presentation] Molecular design of novel NF-kappa B inhibitors active on inflammation and cancer2013

    • Author(s)
      Tamami Ukaji, Kulraweee Sidthipong, and Kazuo Umezawa
    • Organizer
      The 2nd Official Conference of the International Chemical Biology Society (ICBS2013)
    • Place of Presentation
      Kyoto
    • Year and Date
      20131007-20131009
  • [Presentation] 新規alkylglutarimide化合物による成人T細胞白血病細胞のNF-kappa B阻害と選択的アポトーシス誘導2013

    • Author(s)
      宇梶 珠未、竹入 雅敏、伊藤 あゆみ、清水 史郎、 梅澤 一夫
    • Organizer
      日本癌学会
    • Place of Presentation
      横浜
    • Year and Date
      20131003-20131005
  • [Presentation] Suppression of NO-induced beta cell death by (-)-DHMEQ via activation of Nrf2-ARE pathway and alteration of MAPK activity2013

    • Author(s)
      K. Umezawa, T. Ukaji, A. Ogasawara, S. Simizu and I. Takei
    • Organizer
      49th Annual European Association for the Study of Diabetes (EASD) Meeting 2013
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      20130923-20130927
  • [Presentation] 新規 epoxide-free (-)-DHMEQ 誘導体の分子デザインとサイトカイン分泌の抑制2013

    • Author(s)
      宇梶珠未、Kulrawee Sidthipong、小林進、梅澤一夫
    • Organizer
      日本ケミカルバイオロジー学会
    • Place of Presentation
      東京
    • Year and Date
      20130619-20130621
  • [Presentation] NF-κB阻害剤(-)-DHMEQはMMP-2依存性のマスト細胞浸潤を抑制する2013

    • Author(s)
      野間成人、清水史郎、梅澤一夫
    • Organizer
      第17回がん分子標的治療学会
    • Place of Presentation
      京都
    • Year and Date
      20130612-20130614
  • [Presentation] 新規(-)-DHMEQ誘導体の分子デザインとサイトカイン分泌の抑制2013

    • Author(s)
      Kulrawee Sidthipong、宇梶珠未、梅澤一夫
    • Organizer
      第17回がん分子標的治療学会
    • Place of Presentation
      京都
    • Year and Date
      20130612-20130614
  • [Remarks] Umelab. net

    • URL

      www.umelab.net

URL: 

Published: 2015-05-28  

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