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      1. Author :
        Hanai, Koji; Takeshita, Fumitaka; Honma, Kimi; Nagahara, Shunji; Maeda, Miho; Minakuchi, Yoshiko; Sano, Akihiko; Ochiya, Takahiro
      2. Title :
      3. Type :
        Journal Article
      4. Year :
      5. Publication :
        Annals of the New York Academy of Sciences
      6. Products :
      7. Volume :
      8. Issue :
      9. Page Numbers :
      10. Research Area :
      11. Keywords :
        Animals; Bioware; Bone Neoplasms; Collagen; Dermatitis; Disease Models, Animal; Drug Carriers; Gene Therapy; Humans; Hypersensitivity; Mice; Mice, Nude; Nanoparticles; Neoplasm Metastasis; Oligonucleotides; PC-3M-luc; RNA, Small Interfering; Tissue Distribution
      12. Abstract :
        The goal of our research is to provide a practical platform for drug delivery in oligonucleotide therapy. We report here the efficacy of an atelocollagen-mediated oligonucleotide delivery system applied to systemic siRNA and antisense oligonucleotide treatments in animal disease models. Atelocollagen and oligonucleotides formed a complex of nanosized particles, which was highly stable against nucleases. The complex allowed oligonucleotides to be delivered efficiently into several organs and tissues via intravenous administration. In a tumor metastasis model, the complex successfully delivered siRNA to metastasized tumors in bone tissue and inhibited their growth. We also demonstrated that a single intravenous treatment of the antisense oligodeoxynucleotide complex suppressed ear dermatitis in a contact hypersensitivity model. These results indicate the strong potential of the atelocollagen-mediated drug delivery system for practical therapeutic technology.
      13. URL :
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
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