Use of peptide derivatives.

摘要

The present invention is related to the use of a peptide derivative containing 1 to 20 units of peptide unit represented by the following general formula [I] or a pharmaceutically acceptable salt thereof for the manufacture of a pharmaceutical composition for inhibiting tumor metastasis; [Z]-Arg-X-Asp-[Y] [I] wherein Arg represents L- or D-arginine residue, Asp represents L-aspartic acid residue, X represents L-phenylalanine or D-alanine residue, and [Z] and [Y] each represents an amino acid or a peptide residue, which may be present or absent, selected from glycine, L-serine, L-threonine, L- and D-aspartic acid, L-alanine, L- and D-glutamic acid, L-proline residues and a peptide residue constituted by the foregoing amino acid residues.