Abstract
Novel peptides homing to angiogenic vessels were recently isolated from a phage-displayed random pentadecapeptide library. One of the isolated peptides, ASSSYPLIHWRPWAR, significantly suppressed the migration of VEGF-stimulated human umbilical vein endothelial cells. Dendoric ASSSYPLIHWRPWAR-peptide suppressed the formation of new blood vessels in dorsal air sac model mice. Furthermore, ASSSYPLIHWRPWAR-peptide and the fragment peptides containing WRP, which is revealed to be an epitope sequence, significantly suppressed the tumor growth, although 15-mer shuffled peptide derived from ASSSYPLIHWRPWAR and pentapeptides with alanine substitution of each residue of WRP did not. Taken together, ASSSYPLIHWRPWAR-peptide may cause tumor dormancy through inhibition of angiogenesis, and the WRP sequence may be the minimal and essential sequence for this activity.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Amino Acid Sequence
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Angiogenesis Inhibitors / administration & dosage
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Angiogenesis Inhibitors / chemistry
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Angiogenesis Inhibitors / pharmacology*
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Animals
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Cell Division / drug effects
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Cell Movement / drug effects
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Cells, Cultured
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Disease Models, Animal
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Dose-Response Relationship, Drug
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Drug Screening Assays, Antitumor
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Endothelial Growth Factors / pharmacology
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Endothelium, Vascular / cytology
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Endothelium, Vascular / drug effects*
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Epitopes
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Humans
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Injections, Subcutaneous
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Lymphokines / pharmacology
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Melanoma, Experimental / blood supply
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Melanoma, Experimental / drug therapy*
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Mice
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Molecular Sequence Data
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Neoplasm Transplantation
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Neovascularization, Pathologic / drug therapy*
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Peptide Fragments / administration & dosage
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Peptide Fragments / chemistry
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Peptide Fragments / pharmacology
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Peptide Library
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Peptides / administration & dosage
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Peptides / chemistry
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Peptides / pharmacology*
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Sarcoma, Experimental / blood supply
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Sarcoma, Experimental / drug therapy*
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Vascular Endothelial Growth Factor A
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Vascular Endothelial Growth Factors
Substances
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Angiogenesis Inhibitors
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Endothelial Growth Factors
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Epitopes
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Lymphokines
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Peptide Fragments
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Peptide Library
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Peptides
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Vascular Endothelial Growth Factor A
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Vascular Endothelial Growth Factors