摘要:Novel peptides homing to angiogenic vessels were recently isolated from a phage-displayed random pentadecapeptide library, and peptides having WRP sequence showed tumor growth suppression. In this study, we observed that another novel sequence, PVVLFPLH, suppressed tumor growth in vivo . Through the study of tumor growth suppression by the 5-mer peptides derived from this sequence, we determined the epitope sequence to be LFPLH. LFPLH, but not the shuffled peptide FHLLP, suppressed the migration of vascular endothelial growth factor-stimulated human umbilical vein endothelial cells. Interestingly, growth suppression of LFPLH against the cells as well as tumor cells was not observed in vitro . Therefore LFPLH may function to induce tumor dormancy through inhibition of angiogenesis.
关键词:phage-displayed peptide library;angiogenesis;tumor dormancy;drug delivery system