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DEVELOPMENT OF NOVEL ANTI -HIV AGENTS BASED ON HIGHLY' SELECTIVE CHEMOKINE RECEPTOR CXCR$ ANTAGONISTS

Research Project

Project/Area Number 12557218
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 医薬分子機能学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

FUJII Nobutaka  Kyoto University, Graduate School of Pharmaceutical Sciences, Professor, 薬学研究科, 教授 (60109014)

Co-Investigator(Kenkyū-buntansha) YAMAMOTO Naoki  Tokyo Medical and Dental University, School of Medicine, Professor, 医学部, 教授 (00094053)
TAMAMURA Hirokazu  Kyoto University, Graduate School of Pharmaceutical Sciences, Assistant Professor, 薬学研究科, 講師 (80217182)
OTAKA Akira  Kyoto University, Graduate School of Pharmaceutical Sciences, Associate Professor, 薬学研究科, 助教授 (20201973)
黒川 勉  武田薬品工業, 戦略研究室, 室長
西村 紀  島津製作所, 部長(リサーチフェロー)
Project Period (FY) 2000 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 2003: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2002: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2001: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2000: ¥4,700,000 (Direct Cost: ¥4,700,000)
Keywordsanti-HIV agents / chemokine receptor / T-cell line-tropic HIV / T140 / low molecular weight CXCR4 antagonists / HIV-cell fusion inhibitors / de novo design / de novo分子設計 / CXCR4アンタゴニスト / HIV侵入阻害剤 / T細胞指向性HIV-1 / de novo設計 / 環状ペプチド / 環状ペンタペプチドライブラリー / ホモロジーモデリング / 機能性CXCR4変異体 / T140-CXCR4ドッキング解析 / FC131 / gp41-標的型HIV-Cell膜融合阻害剤 / SC34EK / spring8 / CXCR4拮抗剤 / HIVプロテアーゼ阻害剤 / HIV-cell融合阻害剤 / 多剤耐性克服型抗HIV剤 / 二価官能性抗HIV剤 / gp41 / HIV第二受容体拮抗剤 / CXCR4ケモカイン受容体 / T140立体構造 / 逆転写酵素阻害 / エイス / コンビナトリアル合成 / 有用金属試薬
Research Abstract

We have developed two types of anti-HIV agents, which target dynamic supra-molecular mechanism involved in HIV-cell fusion: One is co-receptor (CXCR4) antagonists, such as T140 analogs. The other is fusion inhibitors based on C34, a gp41-derived 34-mer peptide fragment, such as SC34.
(1)An anti-HIV peptide, T140, was found to inhibit the entry of X4-HIV-1 (T cell line-tropic HIV) through its specific binding to a chemokine receptor, CXCR4, which is functioned as the co-receptor for the X4-HIV entry.
a) A cyclic pentapeptide library was adopted to dispose the side-chains of the indispensable T140 residues in proximity. This focused library led to discovery' of potent cyclic pentapeptides.
b) A novel pharmacophore was found in the N-terminal region of T140. Based on the enhancement of T140-derived pharmacophores other low molecular weight CXCR4 antagonists were designed and synthesized.
b) A novel pharmacophore was found in the N-terminal region of T140. Based on the enhancement of T140-derived pharmacophores other low molecular weight CXCR4 antagonists were designed and synthesized.
2) De novo design based on C34 led to development of a synthetic peptide, SC34, which has several advantages as a potential candidate for gp41-target HIV-cell fusion inhibitors (high solubility, enhanced anti-HIV activity, effectiveness against a T20 [Fuzeon]-resistant strain).
These results are thoughtt to be useful for the structure-based drug design of anti-HIV agents.

Report

(5 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (38 results)

All Other

All Publications (38 results)

  • [Publications] A.Otaka, N.Fujii, et al.: "Remodeling of gp41-C34 Peptide Leads to Highly Effective Inhibitors of the Fusion of HIV-1 with Target Cells."Angew.Chem.Int.Ed.. 41(16). 2937-2940 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Tamamura, N.Fujii, et al.: "Synthesis of Potent CXCR4 Inhibitors Prossessing Low Cytotoxicity and Improved Biostability Based on T140 Derivatives"Org.Biomol.Chem.. 1. 3656-3662 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Fujii, H.Tamamura, et al.: "Molecular-Size Reduction of a Potent CXCR4-Chemokine Antagonist Using Orthogonal Combination of Conformation- and Sequence-Based Libraries."Angew.Chem.Int.Ed.. 42(28). 3251-3253 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] J.O.Trent, N.Fujii, et al.: "Lipid Bilayer Simulations of CXCR4 with Inverse Agonists and Weak Partial Agonists."J.Biol.Chem.. 278. 47136-47144 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Tamamura, N.Fujii, et al.: "T140 Analogs as CXCR4 Antagonists Identified as Anti-metastatic Agents in the Treatment of Breast Cancer."FEBS Lett.. 550. 79-83 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Fujii, H.Tamamura, et al.: "The Therapeutic Potential of CXCR4 Antagonists in the Treatment of HIV."Expert Opin.Investig.Drugs. 12(2). 185-195 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.Zhang, Z.Wang, J.L.Murray, N.Fujii, J.Broach, S.C.Peiper: "Chemokine Roles in Immunoregulation and Disease"Springer. 125-152 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] A.Otaka, N.Fujii, et al.: "Remodeling of gp41-C34 Peptide Leads to Highly Effective Inhibitors of the Fusion of HIV-1 with Target Cells."Angew. Chem. Int. Ed.. 41. 2937-2940 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Tamamura, N.Fujii, et al.: "Synthesis of Potent CXCR4 Inhibitors Possessing Low Cytotoxicity and Improved Biostability Based. on T140 Derivatives."Org. Biomol. Chem.. 1. 3656-3662 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Fujii, H.Tamamura, A.Otaka, et al.: "Molecular-Size Reduction of a Potent CXCR4-Chemokine, Antagonist Using Orthogonal Combination of Conformation and Sequence-Based Libraries."Angew. Chem. Int. Ed.. 42. 3251-3253 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] L O.Trent, N.Fujii, et al.: "Lipid Bilayer Simulations of CXCR4 with Inverse Agonists and Weak Partial Agonists."J. Biol. Chem.. 278. 47136-47144 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Tamamura, N.Fujii, et al.: "T140 Analogs as CXCR4 Antagonists Identified as Anti-metastatic Agents in the Treatment of Breast Cancer."FEBS Lett.. 550. 79-83 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N..Fujii,.H.Tamamura, et al.: "The Therapeutic Potential of CXCR4 Antagonists in the Treatment of HIV."Expert Opin. Investig. Drugs. 12. 185-195 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] W.Zhang, Z.Wang, J.L.Murray, N.Fujii, J.Broach, S.C.Peiper: "Functional Expression of CXCR4 in S. cerevisiae: Development of Tools for Mechanistic and Pharmacologic Studies."Chemokine Roles in Immunoregulation and Disease. (Springer), 45. 125-152 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] N.Fujii, H.Tamamura, et al.: "Molecular-Size Reduction of a Potent CXCR4-Chemokine Antagonist Using Orthogonal Combination of Conformation-and Sequence-Based Libraries"Angew.Chem.Int.Ed.. 42(28). 3251-3253 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Tamamura, N.Fujii, et al.: "Synthesis of Potent CXCR4 Inhibitors Possessing Low Cytotoxicity and Improved Biostability Based on T140 Derivatives"Org.Biomol.Chem.. 1. 3656-3662 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Tamamura, N.Fujii, et al.: "Enhancement of the T140-based Pharmacophores Leads to the Development of More Potent and Bio-stable CXCR4 Antagonists"Org.Biomol.Chem.. 1. 3663-3669 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] J.O.Trent, N.Fujii, et al.: "Lipid Bilayer Simulations of CXCR4 with Inverse Agonists and Weak Partial Agonists"J.Biol.Chem.. 278. 47136-47144 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Tamamura, N.Fujii, et al.: "T140 Analogs as CXCR4 Antagonists Identified as Anti-metastatic Agents in the Treatment of Breast Cancer"FEBS Lett.. 550. 79-83 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Mori, N.Fujii, et al.: "CXCR4 Antagonist Inhibits Stromal Ceil-derived Factor 1-induced Migration and Invasion of Human Pancreatic Cancer"Mol.Cancer Ther.. 3. 29-37 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] N.Fujii et al.: "The Therapeutic Potential of CXCR4 Antagonists in the Treatment of HIV."Expert Opinion on Investigational Drugs. Vol.12. 186-195 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Tamamura et al.: "Certification of the Critical Importance of L-3-(2-Naphthyl)alanine at Position 3 of a Specific CXCR4 Inhibitor, T140, Leads to an Exploratory Performance of Its Dwonsizing Study."Bioorg. Med. Chem.. Vol.10. 1417-1426 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Owen et al.: "Susceptibility of Diverse Primary HIV Isolates with Varying Co-receptor Specificity's to the CXCR4 Antagonistic Compounds."J. Med. Virol.. Vol.68. 147-155 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] I.Petit et al.: "G-CSF induces stem cell mobilization by decreasing bone marrow SDF-I and up-regulating CXCR4."Nature Immunology. Vol.3. 687-694 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Tamamura et al.: "Synthesis and Evaluation of Pseudopeptide Analogs of a Specific CXCR4 Inhibitor, T140 : The Insertion of an (E)-Alkene Dipeptide Isostere into the βll"-Turn Moiety."Bioorg. Med. Chem. Lett.. Vol.12. 923-928 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] W.-bo Zhang: "A point mutation that confers constitutive activity to CXCR4 reveals T1 40 is an inverse agonist and AMD3100 and ALX4O-4C are weak partial agonists."J. Biol. Chem.. Vol.277. 24515-24521 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Kanbara, et al.: "Biolocigal and Genetic Characterization of a Human Immunodeficiency Virus Strain Resistant to CXCR4 Antagonis T134"Aids Res. Human Retroviruses. Vol.17. 615-622 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Tamamura, et al.: "Development of Specific CXCR4 Inhibitors Possessing High Selectivity Indexes as Well as Complete Stability in Serum Based on an Anti-HIV Peptide T140"Bioorg. Med. Chem. Lett.. Vol.11. 1897-1902 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] N.Fujii, et al.: "Peptide-lead CXCR4 Antagonists with High Anti-HIV Activity"Current Opinion in Investigational Drugs.. Vol.2. 1198-1202 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Egawa, et al.: "The Earliest Stages of B Cell Development Require a Chemokine Stronol Cell-Derived Factor SDF-1/Pre-B Cell Growth-Stimulating Factor"Immunity. Vol.15. 323-334 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Tamamura, et al.: "Synthesis and Evaluation of Bifunctional Anti-HIV Agents and Specific CXCR4 Antagonists-AZT Conjugation"Bioorg. Med. Chem. Lett.. Vol.9. 2179-2187 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Tanaka, et al.: "A Unique Monoclonal Antibody Recognizing the Third Extracellular loop of the Human CXCR4 Induces Lymphocyte Agglutination and Enhances Human Immunodeficiency Virus Type-1-Mediated Syncytium Formation and Productive infection"J. Virology. Vol.75. 11534-11543 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Tamamura: "Conformational Study of a Highly Specific CXCR4 Inhibitor, T140, Disclosing the Close Proximity of Its Intrinsic Pharmacophores Associated with Strong Anti-HIV Activity."Bioorg.Med.Chem.Lett.. Vol.11. 359-362 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Ponomaryov: "Induction of the Chemokine Stromal-derived Factor-1 Following DNA Damage Improves Human Stem Cell Function."J.Clin.Invest.. Vol.106. 1331-1339 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Tamamura: "Pharmacophore Identification of a Specific CXCR4 Inhibitor, T140, Leads to Development of Effective Anti-HIV Agents with Very High Selectivity Indexes."Bioorg.Med.Chem.Lett.. Vol.10. 2633-2637 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] K.Kanbara: "A Study of Anti-HIV Compounds Which Interfere the Virus Entry via Coreceptor CXCR4."感染症学雑誌. Vol.74. 237-244 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] A.Otaka: "New Strategy for the Synthesis of Aspartyl Protease Inhibi tor Based on "Aza-Payne Rearrangement""Peptide Science. Vol.1999. 195-196 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Koshiba: "Expression of Stromal Cell-derived Factor 1 and CXCR4 Ligand Receptor System in Pancreatic Cancer : A Possible Role for Tumor Progression."Clin.Cancer Lett.. Vol.6. 3530-3535 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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