Vascular targeting with phage peptide libraries

Research output: Contribution to journalReview article

42 Scopus citations

Abstract

We have developed an in vivo selection system in which phage capable of selective homing to different tissues are recovered from a phage display peptide library following intravenous administration. Using this strategy, we have isolated several organ and tumor-homing peptides. We have shown that each of those peptides binds to different receptors that are selectively expressed on the vasculature of the target tissue. The tumor-homing peptides bind to receptors that are upregulated in tumor angiogenic vasculature. Targeted delivery of doxorubicin to angiogenic vasculature using these peptides in animal models decreased toxicity and increased the therapeutic efficacy of the drug. Vascular targeting may facilitate the development of other treatment strategies that rely on inhibition of angiogenesis and lead to advances in cancer treatment. Our technology is also likely to extend the potential for targeting of drugs, genes, and radionuclides in the context of many diseases.

Original languageEnglish (US)
Pages (from-to)159-162
Number of pages4
JournalQuarterly Journal of Nuclear Medicine
Volume43
Issue number2
StatePublished - Jul 19 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Keywords

  • Bacteriophages
  • Neovascularization pathologic grug therapy
  • Peptide library

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