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Development of Delivery Systems for the Control of Pharmacokinetics and Intracellular Trafficking of Antisense Drugs

Research Project

Project/Area Number 07672351
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Biological pharmacy
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

TAKAKURA Yoshinobu  Kyoto University, Fac.Pharm.Sci., Associate Professor, 薬学部, 助教授 (30171432)

Co-Investigator(Kenkyū-buntansha) NISHIKAWA Makiya  Kyoto University, Fac.Pharm.Sci., Assistant Professor, 薬学部, 助手 (40273437)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1995: ¥1,500,000 (Direct Cost: ¥1,500,000)
KeywordsAntisense oligonucleotide / In vivo disposition / Intracellular trafficking / Pharmacokinetics / Liver / Dclivery systems / Sugar-recognition system / poly (L-lysine) / poly(L-lysine) / クリアランス / c-myc / phosphorothioate
Research Abstract

Antisense oligonucleotides have been expected as a novel class of chemotherapeutic agents for the treatment of cancer, viral infections and genetic disorders because of their potentials to inhibit gene expression in a sequence-specific manner. To achieve therapeutic effect in vivo, it is necessary to control the in vivo disposition characteristics as well as intracellular pharmacokinetics of oligonucleotides. The purpose of this project was to develop delivery systems which can control in vivo pharmacokinetics and subsequent intracellular trafficking of antisense oligonucleotides. We used 20 mer phosphodiester (PO) and its phosphorothioate (PS) derivative, complimentary to the human c-myc mRNA,as model antisense molecules. The basic pharmacokinetics of the model oligonucleotides were studied at whole body, organ, cellular and subcellular levels. The in vivo studies and organ perfusion experiments have demonstrated that the oligonucleotides underwent rapid elimination by the liver and kidney as well as degradation by nucleases after systemic administration. In vitro experiments using a variety of cultured cells in combination with confocal laser microscopy have clarified the intracellular fate of oligonucleotides. On a basis of these findings, we assessed the feasibility of macromolecular carriers, galactosylated and mannosylated poly (L-lysine), which can control both in vivo disposition and intracellular pharmacokinetics of oligonucleotides.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] T. Miyao: "Stability and pharmocokinetic characteristics of oligonucleotides modified at terminal linkages in mice." Antisense Res. Develop.5. 115-121 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S. Choksakulnimitr: "In vitro cytotoxicity of macromolecules in different cell culture systems." J. Controlled Release. 34. 233-241 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K. Sawai: "Renal disposition charcteristics of oligonucleotides modified at terminal linkages in the perfused rat kidney." Antisense Res. Develop.5. 279-287 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K. Sawai: "Disposition of oligonucleotides in isoloted perfused rat kidney : Involvement of scavenger receptors in their renal uptake." J. Pharmacol. Exp. Ther.279. 284-290 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y. Takakura: "Uptake characteristics of oligonucleotides in the isoloted rat liver perfusion system." Antisense Nucl. Acid Drug Develop.6. 177-183 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] R. I. Mahato: "Physicochemical and disposition characterstics of antisense oligonucleotides complexed with glycosylated poly (L-Lysine)." Biochem. Pharmacol.(in Press). (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y. Takakura: "Development of delivery systems for antisense oligonucleotides. in ″Advanced Biomaterials in Biomedical Engineering and Dtug Delivery Systems" (Eds. N Ogata, et al.) pp. 357-358" Springer, Verlag Tokyo, 381 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] T.Miyao: "Stability and pharmacokinetic characteristics of oligonucleotides modified at terminal linkages in mice." Antisense Res.Develop.5. 115-121 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] S.Choksakulnimitr: "In vitro cytotoxicity of macromolecules in different cell culture systems." J.Controlled Release. 34. 233-241 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Sawai: "Renal disposition characteristics of oligonucleotides modified at terminal linkages in the perfused rat kidney." Antisense Res.Develop.5. 279-287 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Sawai: "Disposition of oligonucleotides in isolated perfused rat kidney : Involvement of scavenger receptors in their renal uptake." J.Pharmacol.Exp.Ther. 279. 284-290 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y.Takakura: "Uptake characteristics of oligonucleotides in the isolated rat liver perfusion system." Antisense Nucl.Acid Drug Develop.6. 177-183 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] R.I.Mahato: "Physicochemical and disposition characterstics of antisense oligonucleotides complexed with glycosylated poly (L-Lysine)." Biochem.Pharmacol.(in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Y,Takakura: "Development of delivery systems for antisense oligonucleotides. (Eds.N.Ogata, et al.), Springer (Verlag Tokyo)" Advanced Biomaterials in Biomedical Engineering and Drug Delivery Systems. 357-358 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] K.Sawai: "Disposition of oligonucleotides in isolated perfused rat kidney : Involvement of Scavenger receptors in their renal uptake." J.Pharmcol.Exp.Ther.279(1). 284-290 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Y.Takakura: "Uptake characteristics of oligonucleotides in the isolated rat liver perfusion system." Antisense Nucl.Acid Drug Develop.6. 177-183 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] R.I.Mahato: "Physicochemical and disposition characterstics of antisense oligonucleotides complexed with glycosylated poly (L-Lysine)." Biochem.Pharmacol.(in press). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Miyao, T.: "Stability and Pharmacokinetic characteristics of oligonucleotides modified at terminal linkages in mice" Antisense Research and Development. 5. 115-121 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Choksakulnimitr, S.: "In Vitro cytotoxicity of macromolecules in different cell culture systems" J. Controlled Release. 34. 233-241 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Sawai, K.: "Renal disposition charcteristics of oligonucleotides modified at terminal linkages in the perfused rat kidney" Antisense Research and Development. 5. 279-287 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takakura, Y.: "Development of delivery systems for antisense oligonucleotides in “Advanced Biomaterials in Biomedical Engineering and Drug Delivery Systems"(Eds. Ogata, N. et al.)PP.357-358" Springer, Verlag Tokyo, 381 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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