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Search of cell cycle regulator as an anti-cancer agent, from marine invertebrates

Research Project

Project/Area Number 18590003
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Chemical pharmacy
Research InstitutionHyogo University of Health Sciences (2007)
Osaka University (2006)

Principal Investigator

AOKI Shunji  Hyogo University of Health Sciences, Department of Pharmacy, professor (60252699)

Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,980,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥480,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2006: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywordscdk inhibitor / p21 / cell cycle / aaptamine / cryntolepine / secaronic acid D / anti-cancer activity / P21
Research Abstract

P21 was originally identified as a target protein of p53 and then found to inhibit the activity of Cdk-cyclin complexes, thereby regulating cell cycle as a brake. The p21 expression is mainly controlled by diverse mechanisms in a p53-dependent manner. Due to accumulating evidence that p53 is mutated in many human cancer cells, the mutation of p53 has been recognized as one of the major events in carcinogenesis. However, it appears p21 is rarely mutated in human tumors. Therefore, the agents that induce p21 expression through a p53-independent pathway might contribute to cancer prevention or treatment.
Recently, we established a bioassay method using p53-negative human osteosarcoma MG63 cells to search for compounds that activate the p21 promoter in a p53-independent manner. On the guidance of this bioassay, we isolated aaptamine, a marine alkaloid, cryptolepine, a plant alkaloid and secaronic acid D, a bacterial polyketide as active components. Aaptamine activates p21 promoter stably transfected in MG63 cells at the concentrations of 20-50 μg/ml. Expression of p21 in wild-type MG63 cells also increased with aaptamine treatment. The 48 hr treatment of aaptamine induced G2/M arrest of cell cycle in MG63 cells. Furthermore, responsive elements in p21 promote of aaptamine were analyzed. The full length p21 promoter and a series of deleted or mutated constructs fused with luciferase reporter were transiently expressed in MG63 cells, and the cells were treated with aaptamine, showing that Sp1-3, Sp1-4, and Sp1-5, -6 play important roles in the activation of p21 promoter by aaptamine. In conclusion, our investigation indicated that aaptamine activates the p21 promoter through Sp 1 sites between -82 and -50 by and therefore induces p21 expression in a p53-independent manner.

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (33 results)

All 2008 2007 2006

All Journal Article (30 results) (of which Peer Reviewed: 18 results) Presentation (3 results)

  • [Journal Article] Novel isomarabarican triterpenes,exhibiting selective anti-proliferative activity against vascular endothelial cells,from marine sponge Rhabdastrella globostellata2007

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      Bioorg.Med.Chem. 15

      Pages: 4818-4828

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Structure-activity relationship and biological property of cortistatins,anti-angiogenic spongean steroidal alkaloids2007

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      Bioorg.Med.Chem. 15

      Pages: 6758-6762

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Crambescidin 800,a pentacyclic guanidine alkaloid,protects a mouse hippocampal cell line against glutamate-induced oxidative stress2007

    • Author(s)
      H.Suna and S.Aoki, et. al.
    • Journal Title

      J.Nat.Med. 61

      Pages: 288-295

    • NAID

      40015434573

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Cortistatins E,F,G,and H,four novel steroidal alkaloids from marine sponge C orticium simplex2007

    • Author(s)
      Y.Watanabe and S.Aoki, et. al.
    • Journal Title

      Tetrahedron 63

      Pages: 4074-4079

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Cortistatins J,K,L,novel abeo-9(10-19)-androstane-type steroidal alkaloids with isoquinoline unit,from marine sponge Corticium simplex2007

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      Tetrahedron Lett. 48

      Pages: 4485-4488

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] The plant alkaloid cryptolepine induces p21WAF1/CIP1 and cell cycle arrest in a human osteosarcoma cell line2007

    • Author(s)
      T.Matsui and S.Aoki, et. al.
    • Journal Title

      Int.J Oncol. 31

      Pages: 915-922

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Novel isomarabarican triterpenes,exhibiting selective anti-proliferative activity against vascular endothelial cells,from marine sponge Rhabdastrella globostellata2007

    • Author(s)
      S. Aoki, et. al.
    • Journal Title

      Bioorg.Med.Chem. 15

      Pages: 4818-1828

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structure-activity relationship and biological property of cortistatins,anti-angiogenic spongean steroidal alkaloids2007

    • Author(s)
      S. Aoki, et. al.
    • Journal Title

      Bioorg.Med.Chem. 15

      Pages: 6758-6762

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crambescidin 800,a pentacyclic guanidine alkaloid,protects a mouse hippocampal cell lineagainst glutamate-induced oxidative stress2007

    • Author(s)
      H. Suna, S. Aoki, et. al.
    • Journal Title

      J.Nat.Med. 61

      Pages: 288-295

    • NAID

      40015434573

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cortistatins E,F,G,and H,four novel steroidal alkaloids from marine sponge Corticium simplex2007

    • Author(s)
      Y. Watanabe, S. Aoki, et. al.
    • Journal Title

      Tetrahedron 63

      Pages: 4074-4079

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cortistatins J,K,L,novel abeo-9(10-19)-androstane-type steroidal alkaloids with isoquinoline unit,from marine sponge Corticium simplex2007

    • Author(s)
      S. Aoki, et. al.
    • Journal Title

      Tetrahedron Lett. 48

      Pages: 4485-4488

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The plant alkaloid cryptolepine induces p21WAF1/CIP1 and cell cycle arrest in a human osteosarcoma cell line2007

    • Author(s)
      T. Matsui, S. Aoki, et. al.
    • Journal Title

      Int.J Oncol. 31

      Pages: 915-922

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bastadin 6,a Spongean Brominated Tyrosine Derivative,Inhibits Tumor Angiogenesis by Inducing Selective Apoptosis to Endothelial Cells2006

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      ANTI-CANCER DRUGS 17

      Pages: 269-278

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Cortistatins A,B,C,and D,Anti-Angiogenic Steroidal Alkaloids,from the Marine Sponge Corticium simplex2006

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      J.Am.Chem.Soc. 128

      Pages: 3148-3149

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Aaptamine,a spongean alkaloid,activates p21 promoter in a p53-independent manner2006

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      Biochem.Biophys.Res.Commun. 342

      Pages: 101-106

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Bastadins,cyclic tetramers of brominated-tyrosine derivatives,selectively inhibit proliferation of endothelial cells2006

    • Author(s)
      S.Aoki, et. al.
    • Journal Title

      J.Nat.Med. 60

      Pages: 231-235

    • NAID

      10017614652

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] A functional role of intracellular loops of human multidrug resistance protein 12006

    • Author(s)
      XQ.Ren and S.Aoki, et. al.
    • Journal Title

      J.BIOCHEMISTRY 140

      Pages: 313-318

    • NAID

      10018841960

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] A novel synthetic drug,LB-18,closely related to lembehyne-A derived from a marine sponge,induces caspase-independent cell death to human neuroblastoma cells2006

    • Author(s)
      M.Izumi and S.Aoki, et. al.
    • Journal Title

      Int.J Oncol. 29

      Pages: 169-173

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Bastadin 6, a Spongean Brominated Tyrosine Derivative, Inhibits Tumor Angiogenesis by Inducing Selective Apoptosis to Endothelial Cells2006

    • Author(s)
      S. Aoki, S-H. Cho, M. Ono, T. Kuwano, S. Nakao, M. Kuwano, S. Nakagawa, JQ. Gao, T. Mayumi, M. Shibuya, M. Kobayashi
    • Journal Title

      ANTI-CANCER DRUGS 17

      Pages: 269-278

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Cortistatins A, B, C, and D, Anti-Angiogenic Steroidal Alkaloids, from the Marine Sponge Corticium simplex.2006

    • Author(s)
      S. Aoki, Y. Watanabe, M. Sanagawa, A. Setiawan, N. Kotoku, M. Kobayashi
    • Journal Title

      J. Am. Chem. Soc. 128

      Pages: 3148-3149

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Aaptamine, a spongean alkaloid, activates p21 promoter in a p53-independent manner.2006

    • Author(s)
      S. Aoki, D. Kong, H. Suna, Y. Sowa, T. Sakai, A. Setiawan, M. Kobayashi
    • Journal Title

      Biochem. Biophys. Res. Commun. 342

      Pages: 101-106

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Bastadins, cyclic tetramers of brominated-tyrosine derivatives, selectively inhibit proliferation of endothelial cells.2006

    • Author(s)
      S. Aoki, S-H. Cho, A. Hiramatsu, N. Kotoku, M. Kobayashi
    • Journal Title

      J. Nat. Med. 60

      Pages: 231-235

    • NAID

      10017614652

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] A functional role of intracellular loops of human multidrug resistance protein 1.2006

    • Author(s)
      XQ. Ren, T. Furukawa, M. Yamamoto, S. Aoki, M. Kobayashi, M. Nakagawa, S. Akiyama
    • Journal Title

      J BIOCHEMISTRY 140

      Pages: 313-318

    • NAID

      10018841960

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] A novel synthetic drug, LB-18, closely related to lembehyne-A derived from a marine sponge, induces caspase-independent cell death to human neuroblastoma cells.2006

    • Author(s)
      M. Izumi, S. Yogosawa, S. Aoki, H. Watanabe, J. Kamiyama, Y. Takahara, Y. Sowa, M. Kobayashi, H. Hosoi, T. Sugimoto, T. Sakai
    • Journal Title

      INTERNATIONAL JOURNAL OF ONCOLOGY 29

      Pages: 169-173

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Bastadin 6, a Spongean Brominated Tyrosine Derivative, Inhibits Tumor Angiogenesis by Inducing Selective Apoptosis to Endothelial Cells2006

    • Author(s)
      S.Aoki et al.
    • Journal Title

      ANTI-CANCER DRUGS 17

      Pages: 269-278

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Cortistatins A, B, C, and D, Anti-Angiogenic Steroidal Alkaloids, from the Marine Sponge Corticium simplex.2006

    • Author(s)
      S.Aoki et al.
    • Journal Title

      J. Am. Chem. Soc. 128

      Pages: 3148-3149

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Aaptamine, a spongean alkaloid, activates p21 promoter in a p53-independent manner.2006

    • Author(s)
      S.Aoki et al.
    • Journal Title

      Biochem. Biophys. Res. Commun. 342

      Pages: 101-106

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Bastadins, cyclic tetramers of brominated-tyrosine derivatives, selectively inhibit proliferation of endothelial cells.2006

    • Author(s)
      S.Aoki et al.
    • Journal Title

      J. Nat. Med. 60

      Pages: 231-235

    • NAID

      10017614652

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A functional role of intracellular loops of human multidrug resistance protein 1.2006

    • Author(s)
      XQ.Ren, S.Aoki et al.
    • Journal Title

      J. BIOCHEMISTRY 140

      Pages: 313-318

    • NAID

      10018841960

    • Related Report
      2006 Annual Research Report
  • [Journal Article] A novel synthetic drug, LB-18, closely related to lembehyne-A derived from a marine sponge, induces caspase-independent cell death to human neuroblastoma cells.2006

    • Author(s)
      M.Izumi, S.Aoki et al.
    • Journal Title

      INTERNATIONAL JOURNAL OF ONCOLOGY 29

      Pages: 169-173

    • Related Report
      2006 Annual Research Report
  • [Presentation] 核内受容体ペルオキシソーム増殖剤応答性受容体(PPAR)の発現誘導可能なヒト細胞株を用いた新規薬剤開発のためのスクリーニング系の確立2008

    • Author(s)
      橘敬 祐, 青木 俊二, 土井 健史, 他
    • Organizer
      日本薬学会第128年会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2008-03-30
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 核内受容体ベルオキシソーム増殖剤応答性受容体(PPAR)の発現誘導可能なヒト細胞株を用いた新規薬剤開発のためのスクリーニング系の確立2008

    • Author(s)
      橘 敬祐, 青木 俊二, 土井 健史, 他
    • Organizer
      日本薬学会第128年会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2008-03-30
    • Related Report
      2007 Annual Research Report
  • [Presentation] Screening system for search for PPAR ligand using transfected human cell line.2008

    • Author(s)
      K. Tachibana, S. Aoki, T. Doi, et. al.
    • Organizer
      The 128th Annual Meeting of the Pharmaceutical Society of Japan
    • Place of Presentation
      Yokohama
    • Year and Date
      2008-03-28
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2006-04-01   Modified: 2016-04-21  

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